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1 Faculty of Medicine King Abdulaziz University Cardiovascular System Module Phase 2, MBBS 1429/1430 H (2008/ 2009) Phase 2 2003/2004 Year 2 TABLE OF CONTENTS TOPIC Page THE OUTCOMES OF THE UNDERGRADUATE CURRICULUM CURRICULUM MAP PHASE 2 STRUCTURE OF THE MODULE INTRODUCTION AIMS & OBJECTIVES TEACHERS CONTACTS ASSESSMENT ICONS TOPIC OUTLINES NO. LECTURES (NAMES) 1 Introduction to the cardiovascular system: 2 Cellular events in the heart The Heart as a pump// 3 4 Anatomy of the Mediastinum and Pericardium . 5 External Features of the Heart and coronary vessels 6 The control of the cardiac output 7 Cardiac Cycle 8 Plasma lipoprotein-composition, structure and function 9 internal Features of the Heart. 10 Normal development of the heart 11 The Electrical activity of the heart and the ECG 12 Cardiac arrhythmias 13 Congenital anomalies of heart 14 The autonomic nervous system and the cardiovascular system 15 Relationship between pressure, flow and resistance 16 Cholesterol and triglycerides transport pathways 17 Myocardial & Pericardial Diseases 18 Pressure and flow in systemic circulation Predict how CVS will react in common situations: eating a 19 meal, exercise and changes in posture Special circulations: Coronary , Pulmonary , Cerebral and 20 Skeletal circulation 21 Atherosclerosis and Aneurysm King Abdul Aziz University Faculty of Medicine and Allied Sciences 4 5 5 6 7 8 6 11 13 14 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 Phase 2 Cardiovascular Module Year 2 22 23 24 25 26 27 28 29 30 31 32 33 34 35 NO. Ischemic heart Disease Antihypertensive drugs Tissue fluid formation and Edema Valvular Heart Diseases Infective Endocarditis. Hypertension and Effects on Blood Vessels and Heart Vasculitis & Cardiovascular Tumors Anti-anginal drugs Anti-arrhythmic drugs Hyperlipoproteinamias and hypolipoproteinaemias Diagnostic cardiac enzymology Drugs used in heart failure Cardiovascular Investigations Cardiovascular causes of chest pain PRACTICAL (Names) 57 59 61 63 65 67 69 71 73 75 77 79 81 82 1 2 3 4 5 6 7 8 9 10 Middle mediastinum, heart in situ Heart sounds – prediction of timing of uncomplicated murmurs External features of the heart and coronary vessels Internal features of the heart ECG Recording Determination of lipoproteins/plasma lipids Atherosclerosis Cardiac enzymes and proteins Myocardia Infarction/ Valvular Heart Diseases Effects of Drugs on Isolated Mammalian Hear TUTORIALS 85 86 87 88 89 90 91 92 93 94 1 Anatomy of the Heart and coronary vessels 95 2 Atherosclerosis /MyocardiacInfarction/ Valvular Heart Diseases/ Hypertension 96 INDEPENDENT LEARNING 1 2 3 4 1 2 3 4 Study Histology of blood vessels and relate structure to function in the circulation Embryology of the heart and great vessels Study of common congenital defects Factors affecting tissue perfusion PROBLEM BASED LEARNING (PBL) Case studies of patients with chest pain Case studies of heart failure Case studies of valvular disease Case studies of circulatory shock King Abdul Aziz University 3 97 98 99 100 102 107 111 115 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Undergraduate Program Learning Outcomes Learning Outcomes Code Knowledge By the end of the program the graduate will be able to: A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 Describe normal human development across the life-span and how these affect normal structure and function. Describe normal structure and function of the major systems and how they interrelate. Describe the molecular, biochemical and cellular basis essential for maintaining homoestasis. Demonstrate knowledge of the basic medical sciences that explain causes and mechanisms of disease. Describe the alterations in structure and function of major body systems as a result of illness or injury. Demonstrate knowledge and understanding of the pharmacological principles of treatment using drugs, their efficacy in the management and symptomatic relief of diseases, as well as their side effects. Discuss the implications of basic ethical principles, including confidentiality, informed consent, truth telling, and justice, for the care of patients. recognize the legal background of medical practice Explain the causes and mechanisms of intoxication. Describe the role of family, community, and culture as factors influencing patient presentations, interpretations of illness episodes and adherence to treatment episodes. Demonstrate knowledge and understanding of the natural history of disease and relationships with risk factors and disease prevention. Recognize and discuss the principles of disease surveillance and screening, disease prevention, communicable disease control, health promotion, and health needs assessment. Describe strategies to support life-long learning via print and electronic sources to assist in making diagnostic and treatment decisions and to remain current with advances in medical knowledge and practice. Demonstrate knowledge of how to use the basic medical sciences and clinical skills for clinical decision making and problem solving in the care of patients. Recognize the scientific basis of health, disease, and medicine in the management of common and high impact conditions in the society. Demonstrate knowledge of the functional approach to managing chronic conditions, including knowledge of the impact of chronic illness on function. demonstrate basic knowledge of the global health care delivery system in the community including physicians, hospitals, outpatient centres, health agencies and the role of community agencies in that system. Recognize the management of common emergencies and the initial and the life saving management steps for other emergencies. King Abdul Aziz University 4 Faculty of Medicine and Allied Sciences Phase 2 A19 Cardiovascular Module Year 2 Identify the "Red flags" indicating seriousness in the different clinical presentations. Cognitive Skills By the end of the program the graduate will be able to: B1 Recognize, define and prioritize problems. B2 Demonstrate the ability to acquire new information and data. B3 Critically appraise validity and applicability of acquired information to one’s professional decisions. B4 Organize, record, research, present, critique, and manage clinical information. B5 Recognize the limitations of knowledge in medicine and the importance of triangulation of evidence before reaching a decision. B6 Evaluate the patient’s medical problems. B7 Formulate accurate hypotheses to serve as the basis for making diagnostic and treatment decisions. B8 Reflect on one’s thinking process and decisions and apply rational processes. B9 Use appropriate intellectual strategies to deal with uncertainties when they arise. B10 Demonstrate an understanding of research methodology. B11 Formulate research questions. B12 Draw research hypotheses. B13 Choose appropriate research methodologies and designs. B14 Select appropriate methods of data collection. B15 Analyse and interpret collected data. Interpersonal Skills & Responsibility By the end of the program the graduate will be able to: C1 Display the personal attributes of compassion, honesty, and integrity in relationships with patients, families, communities and the medical profession. King Abdul Aziz University 5 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module C2 Exhibit appropriate value for the sensitive nature of the doctor/patient relationship and the importance of active listening, with attention to the patient’s familial, cultural, and spiritual circumstances. C3 Demonstrate professionalism and high ethical standards in all aspects of medical practice, specifically competence, honesty, integrity, respect for others, professional responsibility and social responsibility. C4 Exhibit a capacity for self-evaluation, moral reflection and ethical reasoning to form the basis for a self-directed, lifelong engagement in the responsible, committed, compassionate practice of medicine. C5 Apply the four principles of ethical and legal knowledge, namely respect for autonomy, beneficience, non-maleficience and justice. C6 Demonstrate awareness and understanding of the legal and professional responsibilities; and report inappropriate medical practice. Year 2 Communication, Information Technology & Numerical Skills By the end of the program the graduate will be able to: D1 work effectively as part of a health care team D2 communicate effectively with patients, their families and colleagues, both verbally and in writing D3 retrieve information by all means including electronically D4 present information clearly in written, electronic and oral forms D5 work within a changing, multi-task environment Psychomotor Skills By the end of the program the graduate will be able to: E1 Elicit accurate comprehensive and focused medical history by employing techniques that facilitate the patient’s sharing of information. E2 Conduct a both effective and accurate comprehensive and focused physical examination. E3 Formulate a differential diagnosis. E4 Select the appropriate laboratory tests and radiographic studies and interpret their results and use them in making diagnostic and treatment decisions. King Abdul Aziz University 6 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 E5 Formulate and implement a plan of care for both the prevention and treatment of disease. E6 Educate patients about their health problems and to motivate them to adopt health promoting behaviors. E7 Use pharmacotherapeutic effectively. E8 Demonstrate appropriate technique for performing Basic Life Support and Advanced Life Support. E9 Undertake tasks to initiate and be involved in the care of acutely ill patients. King Abdul Aziz University agents and 7 other therapeutic modalities Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 CURRICULUM MAP YOU ARE HERE… Year 1 Year 2 Phase I Phase II Year 3 Year 4 Year 5 Year 6 Internship Phase III Phase 2, is the first stage towards achieving the objectives specified in the curriculum. The aim is to lay down a solid foundation for the subsequent full-time clinical study in phase 3 of the MBBS program. This foundation will include knowledge, skills and attitudes, particularly attitudes toward the learning process. The curriculum philosophy in Phase 2 is enforcing the development of a mixture of teaching approaches including “student-directed learning”. By the end of Phase 2, you should be ready to be much more involved in the control of the learning process Second Year Courses SECOND YEAR 3RD SEMESTER 4TH SEMESTER Cells and Tissues General Anatomy (2) Biochemical Basis of Medicine (1) Biochemical Basis of Medicine (2) General Anatomy (1) Basic Emergency Care Embryology Cardiovascular System Pathology (1) Respiratory System Communication Skills (1) Immune, Blood lymphatic System Musculoskeletal System Islamic Studies (4) and Medical Ethics Islamic Studies (3) Arabic Language (2) King Abdul Aziz University 8 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 STRUCTURE OF THE MODULE TIMETABLED HOURS: 35 Lectures + 2 Tutorials + 10 Practicals presentations + 4 PBL seminars STUDENT DIRECTED LEARNING: 4 Topics TEACHING DEPARTMENTS: e.g.Anatomy, Physiology, Pharmacology, pathology, Clinical Biochemistry, Medicine, Radiology, paediatric MODULE COORDINATOR: Dr. Mohamed Ajab Noor MODULE MEMBER CONTACTS CONTACTS Name Post Dept. prof. Mohameed Ali Ajab noor Head Clinical biochemistry Dr. Aish mukarrm siddiqui coordinator Internal medicine Pager Mobil Ext E-mail 0555649250 22100 [email protected] 1516 0505536108 18243 [email protected] prof. Ashraf Member youssef nasr naeem prof.Abdelmoneim Member mohamoud osman anatomy 0500959327 pharmacology 0501834576 20218 [email protected] Prof.Abdelrahman fahmy Member physiology 0507620596 22111 Abdelrahman.fahmy@hotmail Dr.Taha motamad hassan Member pathology Dr.Layth Ahmad mimish Dr.Reema Bader Member medicine Member Paediatrics Prof. Sawsan Raheem. Moataz Alshafei Member physiology Administrative Coordinator King Abdul Aziz University 3426 2513 0562394317 21077 [email protected] 21035 0505471257 [email protected] 0500116571 [email protected] 0506638532 [email protected] 21177 0509383573 21197 9 [email protected] [email protected] Faculty of Medicine and Allied Sciences Phase 2 Hanan Alghassal Cardiovascular Module Administrative Coordinator 23075 Year 2 0503696581 INTRODUCTION: Welcome to the Cardiovascular System Module. Our objective over the next four weeks is not to teach you to be a cardiologist, or even to teach you all you need to know about Cardiology to qualify in medicine. Our objective is to lay down the foundations on which you can build, for yourselves, the knowledge of Cardiovascular medicine that you will require in whatever branch of medicine you choose to follow. The Cardiovascular system is of particular significance for the following reasons: Cardiovascular disease account for the biggest single group of disorders presenting to the primary care physician. The heart is intimately associated with respiratory function due to the pulmonary circulation. Integrity of the cardiovascular system is central to the proper functioning of other major systems such as the Central Nervous System and Respiratory System. Therefore, treatment of cardiovascular failure is central to resuscitation in lifethreatening conditions e.g., trauma, drug over dose and shock. The cardiovascular system, like the heart itself, is at the very centre of medicine. We hope you enjoy the next four weeks. There will be other modules ahead, but a good grounding in Cardiovascular module will be an important stage of your journey through this systembased course. Revision: Before you start the cardiovascular module, we recommend you to revise the following subjects: The histological structure of the major tissues of the body, such as epithelia, endothelia and smooth muscle The composition of blood and the cell types it contains, and the principles of haemostasis. The process of formation of tissue fluid and oedema. King Abdul Aziz University 10 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Aims: The aims of this module are to: Study the structure and function of the human cardiovascular system and compare it with abnormal structure and function. Study the assessment of the cardiovascular system and how its function is altered in common disease states. Acquire skills and working knowledge and understanding of the principles and concepts applicable to the cardiovascular system in general provide the basis for the study of common clinical conditions and disorders, and for the clinical examination together with performing simple clinical procedures related to the cardiovascular system and its management. Objectives By the end of this module you should be able to: Describe the structure and relations of the heart and major blood vessels of the body and relate their structure to function in the circulation Describe the operation of the heart as a pump, including the function of the heart valves, and be able to use your understanding of the cardiac cycle as a basis for physical examination of the heart. Describe the development of the heart, some common congenital defects, and the pathology of valvular problems. Describe the factors influencing blood flow to individual tissues and the mechanisms of control of vascular resistance. Describe in general terms the role of the autonomic nervous system in the control of cardiovascular function, including the concepts of local and central control. Describe the mechanisms controlling cardiac output in the normal individual, and how they operate in common situations such as exercise. King Abdul Aziz University 11 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Describe the special features of the pulmonary, cerebral, coronary, skin and skeletal muscle circulations Describe the features of the normal electrocardiogram and their relation to electrical events in the heart, and be able to interpret changes in the ECG produced by common clinical conditions. Describe the molecular and cellular events underlying the cardiac cycle, the principles of altering heart rhythm and contractility by drugs Describe the structure and properties of the coronary circulation, and the pathology and effects of ischemic heart disease. Describe basic material relevant to the assessment, diagnosis and treatment of a patient presenting with acute chest pain Describe some common reasons for and the major effects of chronic heart failure. Describe the possible reasons for, effect of, and principles of treatment of hypertensions. King Abdul Aziz University 12 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Transferable Skills: By the end of this module, you will demonstrate the ability to: Assimilate and integrate information from lectures, practical sessions, tutorials, clinical presentation sessions and independent learning activities Gain practical skills associated with the dissection of the cadaver and the examination of the living Interpret two-dimensional images of the cardiovascular system radiographic techniques Explain the pathology of cardiovascular system and drug action in relation to the underlying processes. Cross modular themes 1) Concurrent modules: The work on the overall structure of the circulation will relate closely to the musculoskeletal module, where students study the circulation of the limbs. The work on the autonomic nervous system and cellular and molecular events in the heart will closely relate to the material in other core courses of the second year. Physical examination of the cardiovascular system will be learned within the clinical stream and practical of the module The study of myocardial infarction and other aspects of ischemic heart disease will be reinforced by material discussed in clinical presentations. 2) Future modules: The respiratory system module will pick up on the properties of the pulmonary circulation Both renal-urinary system and gastrointestinal system modules will deal with their respective special circulations. The renal urinary system module will deal with the control of blood volume, and pick up again the them of hypertension The reproductive system module will deal again with the foetal circulation King Abdul Aziz University 13 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Assessment: (EXAMPLE) 1. Formative: This form of assessment is designed to give you feedback to help you to identify areas for improvement. It includes a mixture of MCQs, short answer-questions (SAQs), extended matching questions (EMQs), problems-solving exercises and independent learning activities in all subjects. These will be given during tutorial sessions and practicals. The Answers are presented and discussed immediately with you after the assessment. The results will be made available to you. 2. Summative This type of assessment is used for judgment or decisions to be made about your performance. It serves as: a. Verification of achievement for the student satisfying requirement b. Motivation of the student to maintain or improve performance c. Certification of performance d. Grades In this Course your performance will be assessed according to the following: 1. Continuous Assessment 40 Marks 2. Final End of Semester Exam (Two Hours) 50 Marks 3. Final OSPE (Practical) 10 Marks Total = 100 Marks Write short description about assessment tools for example…………. Exams: Written Exams will include short answer and multiple choice questions (MCQs). They will cover material presented in lecture, readings, and discussion. All exams must be taken on the date scheduled. In case of an emergency, the coordinator must be notified. No make-up exams will be provided if you fail to notify and discuss your situation with the coordinator. Practical Exam will be in an OSPE (Objective Structured Practical Exam) format, where you will pass through several stations representing all the subjects. King Abdul Aziz University 14 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Assignment paper: The purpose of the work is to provide you with the opportunity to explore an area of basic medical sciences or medical education in depth. The paper is to be a 10-15 page literature review of the topic will constitute 20% of your final grade. Policy: Topics must be approved in writing by the coordinator. Directions for topic submission will be discussed during the first week of class. Topics that have not been approved will not be accepted. All papers must reference a minimum of eight references from refereed journals. All papers must be typed, double-spaced, have 1 inch margins. Note: We will be making the journey from "womb to tomb" in 15 weeks. Therefore, this course requires an intensive coursework load. Class attendance and participation are extremely important to your learning and as such are considered in the evaluation of your course grade. This course is recommended for students that can make the required time and energy commitment. If there is anything that the coordinator can do to assist you during the course, please feel free to contact him. Course work: You are required to complete satisfactorily one piece of work during the course. This may involve a variety of activities, from essays to problem-solving papers and short answerquestions to posters and presentation. King Abdul Aziz University 15 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Icons (standards) The following icons have been used to help you identify the various experiences you will be exposed to. Learning objectives Content of the lecture Independent learning from textbooks Independent learning from the CD-ROM. The computer cluster is in the 2nd floor of the medical library, building No. 7. Independent learning from the Internet Problem-Based Learning Self- Assessment (the answer to self-assessment exercises will be discussed in tutorial sessions) The main concepts King Abdul Aziz University 16 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Topic Outlines LECTURES King Abdul Aziz University 17 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 1: Introduction to the cardiovascular system Student Notes: . Department: Physiology Lecturer: Prof. Hossam Awad Prof. Maha Hegazi By the end of this lecture the student will study the functional structure parts of the heart and circulatory system 1. Outline the different functional structure of the heart 2. Describe the component of the circulatory system 3. Match the specific vascular structure with its particular function 4. Describe how the arterioles are responsible for the peripheral resistance 5. Define the capacitance vessels 6. Describe the importance of the cardiac valves 1. Distinguish between the contractile, conductive and pace maker tissues of the cardiac muscle 2. Summarize the conduction pathway of impulse over the heart 3. Identify how the impulse is auto-generated in the cardiac muscle (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 18 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture 1: Introduction to the cardiovascular system Student Notes: See the Study guide of CV module Try to access CD-ROM series about the CVS, just look to the main topics in each CD-ROM and be sure you know how to run it for future independent learning. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key word – Cardiovascular System –in the search engine google (www.google.com). The aim is to be able to use the search engine and also to recognize the rich resources in the web. Don’t read any details at this stage. Later in the course, we will direct you to specific useful sites. http://www. Google.com King Abdul Aziz University 19 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 2: Cellular events in the heart Student Notes: Department: Physiology Lecturer :Prof. Hossam Awad Prof. Maha Hegazi By the end of this lecture you should be able to describe the following: understand the cardiac property (Automaticity) understand the cardiac property (Excitability) Apply his information on a different situations 1. Explain cardiac automaticity 2. distinguish between slow and fast action potential 3. predict the effects of ionic, chemical and neural changes on cardiac automaticity 4. Summarize myocardial excitability phases 5. Explain the significance of plateau phases in prolongation of ARP 6. Related the phases of cardiac action potential to excitability and contractility King Abdul Aziz University 20 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 2: Cellular events in the heart Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 528 - 532 You have the opportunity to watch the CD-ROM about the electrical activity of the heart. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web sites about the cardiovascular system but these should not used in isolation. I would recommend you look at the following web site: http://www.cvphysiology.com/Arrhythmias/A007.htm Self-assessment Draw the action potential of ventricular cell and compare it with the action potential of a single sinatorial cell. Answer MCQs (8) in Ganong, Review of Medical Physiology, 20th edition, page: 761 King Abdul Aziz University 21 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 3: The Heart as a pump Student Notes: Department: Physiology Lecturer: Prof. Hossam Awad Prof. Maha Hegazi. At the end of the lecture you should be able to: Understand the cardiac property (Conductivity ). Understand the cardiac property (Contractility). Apply his information on a different situations 1. Explain how the excitation wave is conducted to the contractile muscle fibers 2. Explain the excitation contraction coupling in cardiac muscle. 3. Predict the importance of Ca++ om cardiac contraction 4. List factors affecting contractility 5. Define Frank-Starling law, and explain its mechanism. 6. Discuss the effect of sympathetic stimulation on cardiac contractility and explain its mechanism. 7. Compare between the increased cardiac contraction force and stroke volume by the increased preload and the sympathetic stimulation (as regard the mechanism, the O2 consumption, the limitation, and the benefits). . Think of the heart as an elastic band – the more you stretch it initially, the further you can fire it. This will help you understand Starling Law. Remember, however, that the force of contraction can also be affected by other extrinsic factors, e.g. sympathetic stimulation. Starling’s law is not the only factor that affects Stroke volume. King Abdul Aziz University 22 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 3: The Heart as a pump Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 545 and page 552- 553 You have the opportunity to watch the CD-ROM about the Cardiac contractility. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system but these should not used in isolation. I would recommend you look at the following web sites: http://www.elon.edu/shouse/physiology/physiol22/Lectur e14.html Self-assessment Briefly answer the following short question: It takes several months for nerves to grow into transplanted hearts. However, before the nerves grow in patients with transplanted hearts, exercise increases their cardiac output. What is the mechanism involved, and how does it operate? King Abdul Aziz University 23 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 4: Anatomy of the Mediastinum and Pericardium Department: Anatomy Lecturer: Prof. Dr. Said Zaghloul Prof. Dr. Amira El-haggagy At the end of the lecture you should be able to: 1) List the subdivision of the mediastinum and their components. 2) Boundaries and contents of different mediastina 3) Describe the types of the pericardium 4) Identify the pericardial sinuses 5) Describe the innervation and arterial supply of pericardium * Mediastinum: Definition, Boundaries and parts. * Describe the boundaries, contents and relations of each part. * Pericardium: types, cavity, sinuses, blood and nerve supply and clinical importance. King Abdul Aziz University 24 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture4: Richard S. S nell. Clinical Anatomy for Medical students, 7th edition, Lippincott, Williams and Wilkins. * Lectures notes in the Department of Anatomy Web Sites and its attached links: WWW.kauanatomy.com Self Assessment * Prepare a simple presentation about one of the following topics: - Middle mediastinum (boundaries and contents). - Fibrous pericardium - Pericardial sinuses King Abdul Aziz University 25 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 5: External Features of the Heart and coronary vessels Department: Anatomy Lecturer: Prof. Dr. Said Zaghloul Prof. Dr. Amira El-haggagy At the end of the lecture you should be able to: 1- Shape, surfaces, and borders of the heart 2- Chambers forming base & apex of the heart 3- Chambers forming sternocostal and diaphragmatic surfaces of the heart 4- Chambers forming upper, lower, left and right borders of the heart 5- Grooves on the external surface of the heart and their content. 6- Coronary arteries (origin and branches of each artery) 7- Venous drainage of the heart - External features of the heart: shape, surfaces, borders, apex, base and grooves. - Arterial supply of the heart - Coronary sinus (position, termination and tributaries) - Cardiac plexuses (superficial and deep) Richard S. Snell. Clinical Anatomy for Medical students, 7th edition, Lippincott, Williams and Wilkins. King Abdul Aziz University 26 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture 5 : * Lectures notes in the Department of Anatomy Web Sites and its attached links: WWW.kauanatomy.com Self Assessment * Prepare a simple presentation about one of the following topics: - Surface anatomy of heart borders - Surface anatomy of heart valves & best sites of their auscultation King Abdul Aziz University 27 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 6: The control of the cardiac output Student Notes: Department: Physiology Lecturer: Prof. Hossam Awad Prof. Maha Hegazi By the end of this lecture you will be able to: 1- Know the factors that affect the cardiac output, 2- Know the relation of cardiac output to the body surface area. 3- How the cardiac output is influenced by the heart rate and stroke volume. 4- Know the effect of increased arterial blood pressure on the cardiac output. 1. Define cardiac output, cardiac index & ejection fraction. 2. Explain the effects of heart rate changes on CO. 3. Explain how the stroke volume is influenced by the venous return(preload) which in turn affects the cardiac output 4. Explain & describe how the cardiac output is regulated. 5. List what the factors that affect venous return. 6. Explain the effect of changes in arterial blood pressure (after-load) on cardiac output. 7. Compare between the effects of starling law & the sympathetic stimulation on the CO. 8. Explain why trained athletes can achieve higher cardiac output than non athletes. 9. Define the O2 consumption by the heart & explain why it is more in the left ventricle than the right. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 28 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 6: The control of the cardiac output Student Notes: Remember that cardiac output is limited by venous return; without integrated regulation of the cardiovascular system, an increased heart rate will be compensated by reduced stroke volume. Ganong, Review of Medical Physiology, 20th edition, page: 550 - 555 You have the opportunity to watch the CD-ROM about the Cardiac output. You can access the CDROM during your spare time. In the computer cluster also you have the opportunity to see some useful web sites about the cardiovascular system. I would recommend you to use the key words – Cardiac, output, control –in the search engine google (www.google.com). The aim is to be able to use the search engine and also to recognize the rich resources in the web. http://www. Google.com Self-assessment Briefly answer the following in a short essay: Which methods are commonly used to measure cardiac output? Answer MCQs (1- 5) in Ganong, Review of Medical Physiology, 20th edition, page: 761 King Abdul Aziz University 29 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 7 Cardiac Cycle Student Notes: Department: Physiology Lecturer : & Prof. Hossam Prof. Maha Hegazi & Dr.Azra Kiramani At the end of the lecture you should be able to: 1-Understand the mechanical events (phases) of the cardiac cycle. 2-Understand the changes in the venous pressures, arterial pressures, heart sounds, and ECG that take place during each cardiac beat. 1. analyze the changes in ventricular volume and or pressure and the opening and closing of valves during the cycle 2. Relate the mechanical events of the cardiac cycle to the ECG. 3. Predict the causes of first and second heart sounds 4. Describe & draw the jugular pulse curve & relate its waves to the phases of cardiac cycle. 5. Analyze the arterial pulse curve, and explain the causes of diacrotic notch & wave The cardiac cycle is the sequence of pressure and volume changes that takes place during cardiac activity. A cycle time of 0.8 s is taken at rest (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 30 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 7 Cardiac Cycle Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 545 - 558 You have the opportunity to watch the CD-ROM about the Cardiac Cycle. You can access the CDROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system but these should not used in isolation. I would recommend you look at the following web site: http://www.elon.edu/shouse/physiology/physiol22/Lect ure13.html Self-assessment Which of the following is incorrect? 1. The action potential is longer in cardiac muscle than in skeletal muscle 2. Cardiac muscle can not undergo tetany because cardiac muscle uses external Ca++ 3. The AP of cardiac muscle lasts almost as long as the muscle contraction 4. Muscle contraction in cardiac muscle lasts 100 msec. Which of the following is incorrect? Under normal conditions, the pressure in the 1. Vena cava is 8 mm Hg and the pressure in the right ventricle is 4 mm Hg. 2. Right atrium is 4 and the pressure in the right ventricle is 20/4 mm Hg (this is a systolic pressure of 20 and a diastolic pressure of 4). 3. Right ventricle in 20/4 mm Hg and the pressure in the left ventricle is 120/8 mm Hg. 4. Pulmonary artery is 120/8 mm Hg and the pressure in the left atrium in is 8 mm Hg. King Abdul Aziz University 31 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 8 : Plasma lipoprotein-composition, structure and function Student Notes: Department: Biochemistry. Lecturer Prof. Mohd Ali Ajab Noor – Dr. Enayat Hashem At the end of this lecture you will be able to: 1) Describe the general structure and composition of a typical plasma lipoprotein. 2) Classify human plasma lipoproteins on the basis of their particle size, physical properties, composition and transport function. 3) Discuss the clinically important methods for analysis of plasma lipoproteins. In general nature of lipoprotein systems will be described and discussed before looking in detail at the lipoproteins found in the human plasma. The structure, composition, and physical properties of chylomicrons, very low density, low density and high density lipoproteins will be reviewed and methods of clinical importance for the analysis of plasma lipoproteins will be described. Lipoprotein A is a prothrombotic lipoprotein that is particularly involved in coronary disease, while high (Insert here handouts and additional pages for notes if needed) levels of high-density lipoprotein are protective King Abdul Aziz University 32 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 8 : Plasma lipoprotein-composition, structure and function Student Notes: Rubin & Farber, Essential Pathology, 2nd edition. PP 249 - 260 You have the opportunity to watch the CD-ROM about the Hyperlipidemias” You can access the CDROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Hyperlipidemias” –in the search engine google (www.google.com). http://www. Google.com Self-assessment Answer MCQs (4 and 8) in Ganong, Review of Medical Physiology, 20th edition, page: 745 King Abdul Aziz University 33 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 9: internal Features of the Heart. Department: Anatomy Lecturer: Prof. Dr. Said Zaghloul Prof. Dr. Amira El-haggagy At the end of the lecture you should be able to: 1) Identify the chambers of the heart 2) Identify the internal features of the chambers of the heart 3) Describe the smooth and rough parts of each cardiac chamber 4) Describe the anatomy of heart valves (tricuspid, mitral, aortic, and pulmonary valves) 5) Papillary muscles in the right and left ventricles Chambers of the heart * Features of the cavities of right atrium, ventricle, left atrium and ventricle and the valves. * Papillary muscles * Cusps of the heart valves King Abdul Aziz University 34 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture9 Richard S. Snell. Clinical Anatomy for Medical students, 7th edition, Lippincott, Williams and Wilkins. * Lectures notes in the Department of Anatomy Web Sites and its attached links: WWW.kauanatomy.com Self Assessment * Prepare a simple presentation about one of the following topics: - Surface anatomy of the heart and its valves - Anatomy and mechanisms of action of the heart valves - Anatomy of the conducting system of the heart. King Abdul Aziz University 35 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 10: Normal development of the heart Department: Anatomy Lecturer: Prof. Dr. Said Zaghloul Dr. Eman Abd El-aal At the end of the lecture you should be able to: 1- Describe the process of angiogenesis. 2- List the parts of primitive heart tube 3- Describe the process of the interatrial septum development 4- Describe the development of the interventricular septum 5- Embryological origin of smooth and rough part of each cardiac chamber 6- Development of cardiac valves (tricuspid, mitral, aortic, and pulmonary valves) Angiogenesis. Establishment of the cardiogenic field. Formation and position of the heart tube. Folding of the heart tube. Formation of the cardiac loop. Formation of the cardiac septa. Development of the heart valves. Sadler TW. Langman’s Medical Embryology, 10th edition. Lippincott, William and Wilkins. King Abdul Aziz University 36 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture 10 : - Lecture note in the department of Anatomy web site and its attached links: www.kauanatomy.com Self-Assessment * Prepare a simple presentation about one of the following topics: - Angiogenesis - Development of the atria - Development of the heart septa. King Abdul Aziz University 37 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 11: The Electrical activity of the heart and the ECG Student Notes: Department: Physiology Department Lecturer : Prof. Hossam Awad Prof. Maha Hegazi & Dr.Azra By the end of this lecture you should be able to Know the normal ECG waves, segments, and intervals, understand their significances, and know the significance of ECG recordings in diagnosis of diseases and follow up patients. Understand the following General rouls: Spread of the depolarization wave toward the +ve electrode records a +ve wave. And vice versa. Spread of the repolarization wave toward the +ve electrode records a – ve wave. And vice versa. T wave is +ve because the spread of repolarization wave of the ventricles occurs from epicardium to the endocardium (due to relative ischemia of endocardium during ventricular systole). So, it spreads away from the recording electrode +ve wave. 1. list the relationship between the ECG waves, segments, and intervals and the cardiac depolarization and repolarization. 2. describe the normal origin and spread of the cardiac action potential. 3. list the information you can get from an ECG recording 4. define the normal sinus rhythm, sinus tachycardia, and sinus bradycardia. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 38 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 11: The Electrical activity of the heart and the ECG Student Notes: The various parts of the conduction system and, under abnormal conditions, parts of the myocardium are capable of spontaneous discharge. Ganong, Review of Medical Physiology, 20th edition, page: 528 - 534 You have the opportunity to watch the CD-ROM about the ECG you can access the CD-ROM during your spare time. A nice tutorial on the normal ECG. In particular, section 3 "Parts of the EKG" and section 4 "The Sequence of Cardiac Depolarization and Repolarization" are useful (and brief). http://endeavor.med.nyu.edu/courses/physiology/cour seware/ekg_pt1/ekgmenu.html Self-assessment Briefly answer the following in a short essay: Describe how the action potential is conducted through the heart and how the ECG helps to identify conduction abnormalities Indicate whether each statement is true or false: In the Electrocardiogram: a) The Q wave is caused by atrial repolarization. b) The PR interval is prolonged in atrial hypertrophy. c) The QT interval will give you the duration of ventricular systole. d) The first heart sound occurs at the same time as the P wave. e) The R wave coincides with the depolarization of the apex. Answer MCQs (1-4) in Ganong, Review of Medical Physiology, 20th edition, page: 760 King Abdul Aziz University 39 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 12: Cardiac arrhythmias Student Notes: Department: Physiology Lecturer : & Prof. Hossam Prof. Maha Hegazi & Dr. Azra At the end of the lecture you should be able to: 1) Understand the types of rhythm and conduction abnormalities, their possible causes and, their ECG changes. 2) Describe the basic mechanisms of cardiac arrhythmias. 3) Identify the common cardiac arrhythmias on an ECG rhythm strip and explain the mechanism of its production. 1-List the types of sinus arrhythmias and explain their ECG changes. 2-List the types of atrial arrhythmias (atrial extrasystole, flutter, and fibrillation) show the ECG changes in each. 3Define reentry and link it to the mechanism of arrhythmis. 4-List the ventricular arrhythmias, discuss their ECG changes. 5-Compare the ECG changes between atrial and ventricular extrasystole. 6-Explain the compensatory pause in ventricular extrasystole and the rhythm shift in atrial extrasystole. 7-List the types of conduction abnormalities, and show the ECG changes in each. Arrhythmias are usually classified clinically as supraventricular and ventricular. Supraventricular – originating in the atrium or atrioventricular node. Ventricular – originating in the ventricle. King Abdul Aziz University 40 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 12: Cardiac arrhythmias Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 535 - 539 You have the opportunity to watch the CD-ROM about the Cardiac arrhythmias. You can access the CD-ROM during your spare time. ECG tutorial site. A bit more than we need to know, but the quizzes are useful. Try them! http://medlib.med.utah.edu/kw/ecg Self-assessment Briefly answer the following in a short essay: Describe the pathophysiological principal of the cardiac arrhythmias. Classify cardiac arrhythmias using a simple concept map. King Abdul Aziz University 41 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 13: Congenital anomalies of heart Department: Anatomy Lecturer: Prof. Dr. Said Zaghloul Dr. Iman Abd El-aal At the end of the lecture you should be able to: 1- Describe the common congenital heart diseases with their clinical presentation and sings. 2- Explain the components of the Fallot’s tetralogy. 3- Explain the complication of the congenital heart diseases. General local causes of the heart defects. Anomalies of the cardiac loop. Dextrocardia. Situs inversus. Atrial and ventricular septal defects. Transposition of the great vessels. Tetralogy of Fallot. Valvular stenosis and atresia. King Abdul Aziz University 42 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture 13 : Sadler TW. Langman’s Medical Embryology, 10th edition. Lippincott, William and Wilkins. Rubin and Farber, Essential Pathology, 2nd edition. - Lecture note in the department of Anatomy web site and its attached links: www.kauanatomy.com Self-Assessment * Prepare a simple presentation about one of the following topics: - Fallot tetralogy. - Ventricular septal defect - Types of interatrial septal defects. King Abdul Aziz University 43 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 14: The autonomic nervous system and the cardiovascular system Student Notes: Department: Physiology Lecturer: Dr. Al-hazimi –Dr. Zeinab Al Refaei By the end of this lecture you will be able to: Outline the neural mechanisms that control arterial blood pressure and heart rate, including the receptors, afferent and efferent pathways, central integrating pathways, and effector’s mechanisms involved. 1. Define and list central control of the heart 2. 3. 4. 5. and blood vessels. Discuss the autonomic control of the heart and blood vessels. Discuss the Baroreceptors reflex & gravity Discuss volume receptors &Bainbridge reflex chemoreceptors reflex. Discuss central “reflexes” vasovagel syncopy & temperature. . There are several very important humoral mechanisms including circulating catecholamines, the reninangiotensin system, vasopressin (antidiuretic hormone), atrial natriuretic peptide, and endothelin. Each of these humoral systems directly or indirectly alter cardiac function and vascular function. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 44 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 14: The autonomic nervous system and the cardiovascular system Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 579 - 583 You have the opportunity to watch the CD-ROM about the nervous regulation of cardiovascular system. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system but these should not used in isolation. I would recommend you look at the following web sites: http://www.cvphysiology.com/Blood%20Pressure/B P007.htm Self-assessment Briefly answer the following short essay: Compare the function of the carotid and aortic baroreceptors with the function of baroreceptors in the atria and great veins. What are the effects of baroreceptor denervation? King Abdul Aziz University 45 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 15: Relationship between pressure, flow and resistance Student Notes: Department: Physiology Lecturer: Prof. Hosam Awad – Prof. Maha Hegazi By the end of this lecture you will be able to: 1) Describe the relationship between flow, pressure, and resistance in the vascular system. 2) Define laminar flow and critical closing pressure. 3) Explain why the radius of a vessel is such an important determinant of flow. 4) Define the law of Laplace, and list three example of its operation in the body. Physical principles and equations that are applicable to the description of the behaviour of perfect fluids in rigid tubes have often been used to explain the behaviour of blood vessels. However, blood vessels are not rigid tubes, and the blood is not a perfect fluid but a two-phase system of liquid and cells. Therefore, the behaviour of the circulation deviates, sometimes markedly, from that predicted by these principles. The physical principles are of value when used as an aid to understand what goes on the body rather than as an end in themselves or as a test of memorizing ability. King Abdul Aziz University (Insert here handouts and additional pages for notes if needed) 46 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 15: Relationship between pressure, flow and resistance Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 560 -564 You have the opportunity to watch the CD-ROM about the blood flow. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system but these should not used in isolation. I would recommend you look at the following web sites: http://www.cvphysiology.com/Hemodynamics/H001 .htm Self-assessment Briefly answer the following short essay: Where in cardiovascular system is turbulent flow normally found? What produces them? King Abdul Aziz University 47 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 16: Cholesterol and triglycerides transport pathways Student Notes: Department: Biochemistry Lecturer Prof. Mohd Ali Ajab Noor - Dr. Enayat Hashem At the end of this lecture you will be able to: 1) Describe the transport, functions and metabolism of chylomicrons and chylomicron remnants. 2) Describe the transport, functions and metabolism of VLDL and VLDL remnants (IDL). 3) Describe the transport functions and metabolism of LDL. 4) Give examples of defects in lipoprotein metabolism which result in hyperlipoproteinaemias Two lipoprotein transport pathways will be described in detail: The transport of dietary triaglycrol and cholesterol by very low density and low density lipoproteins. The transport of endogenous triacylglycerole and cholesterol by very low density and low density lipoproteins. King Abdul Aziz University 48 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 16: Cholesterol and triglycerides transport pathways Student Notes: Fagan, cardiovascular system, Physiology, 2nd edition, page: 80 - 82 You have the opportunity to watch the CD-ROM about the Cholesterol and triglycerides transport. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Cholesterol and triglycerides transport” –in the search engine google (www.google.com). http://www. Google.com Self-assessment How defects in lipoprotein metabolism result in hyperlipoproteinaemias? King Abdul Aziz University 49 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 17: Myocardial & Pericardial Diseases Student Notes: Department: Pathology Lecturer:Dr. Taha Moatamad &Dr. Rana Bokhary At the end of the lecture you should be able to: Describe the pathogenesis, morphology & clinical features of: 1. Myocarditis. 2. Pericarditis. 3. Pericardial effusions. The lecture will cover the following topics: 1. Causes, morphology & clinical features of myocarditis. 2. Causes, morphology, clinical features & outcomes of pericarditis & pericardial effusions. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 50 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue .... Lecture 17: Myocardial & Pericardial Diseases Student Notes: Robbins Basic Pathology, 8th edition. Chapter 11 – The Heart. Pages 414-417. You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html What are the causes of myocarditis? What are the causes of different types of pericarditis & pericardial effusions? King Abdul Aziz University 51 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 18: Pressure and flow in systemic circulation Student Notes: Department: Physiology Lecturer: Prof. Hosam Awad Prof. Maha Hegazi By the end of this lecture you will be able to: 1) Describe the factors that affecting arterial blood pressure 2) Know the mechanism of arterial blood pressure regulation. 1- List physiologic factors that affect BP e.g. age, sex, etc…). 2- Describe different regulatory mechanisms for ABP: 3- Describe Role of kidney in blood volume regulation: renin-angiotensin system. As the pressure pulse moves away from the heart, the systolic pressure rises and the diastolic pressure fall. There is also a small decline in mean arterial pressure as the pressure pulse travels down distributing arteries due to the resistance of the arteries. Therefore, when arterial pressure is measured using a sphygmomanometer (i.e., blood pressure cuff) on the upper arm, the pressure measurements represent the pressure within the brachial artery, which will be slightly different than the pressure measured in the aorta or the pressure measure in other distributing arteries. Systemic vascular resistance (SVR) refers to the resistance to blood flow offered by all of the systemic vasculature, excluding the pulmonary vasculature. This is sometimes referred as total peripheral resistance (TPR). King Abdul Aziz University 52 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 18: Pressure and flow in systemic circulation Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 565 - 568 You have the opportunity to watch the CD-ROM about the arterial blood pressure. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system but these should not used in isolation. I would recommend you look at the following web sites: http://www.cvphysiology.com/Blood%20Pressure /BP002.htm Self-assessment Briefly answer the following short essay: What are Korotkoff’s sounds and what produces them? What are the main factors that affect the arterial blood pressure in a normal person? King Abdul Aziz University 53 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 19: Predict how CVS will react in common situations: eating a meal, exercise and changes in posture Student Notes: Department: Physiology Lecturer: Dr. Atef Abood Dr. Azra keramani At the end of this lecture you should be able to: 1- Outline the compensatory mechanisms that maintain blood pressure on rising from the supine to the standing position. 2- Describe and explain the circulatory changes that occur during exercise. 3- Outline the main beneficial effects of athletic training on the cardiovascular system in the body. 4- Describe the cardiovascular changes that accurse after a heavy meal. 5-Understand the meaning of cardiac reserve, wok metabolism and the O2 consumption by the heart. 1. Define cardiac reserve, and discuss its parameters and limitations. 2. Discuss cardiac metabolism, and compare it to the skeletal muscle metabolism. 3. Define mechanical efficiency of the heart. 4. Define cardiac work and discuss O2 consumption by the heart. 5. Discuss the changes in the heart rate, stroke volume, peripheral vascular resistance and arterial blood pressure that take place during eating, exercise, and postural changes . Exercise is associated with very extensive alterations in the circulatory and respiratory systems. For convenience the circulatory adjustments are considered in this lecture. However, It should be emphasized that they occur together in integrated fashion as part of the homeostatic responses that make moderate to severe exercise possible. King Abdul Aziz University 54 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 19: Predict how CVS will react in common situations: eating a meal, exercise and changes in posture Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 609 - 611 You have the opportunity to watch the CD-ROM about the Cardiovascular response to exercise. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – Cardiovascular system, exercise –in the search engine google (www.google.com). The aim is to be able to use the search engine and also to recognize the rich resources in the web. http://www. Google.com Self-assessment Briefly answer the following short essay: Describe the main changes in cardiovascular system during exercise. Why do people faint when rise from supine to standing position? (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 55 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 20:Special circulations: Coronary , Pulmonary , Cerebral and Skeletal circulation. Department: Physiology Lecturer : Dr. Atef Abood Dr. Azra Student Notes: By the end of this lecture you will be able to: 1- Describe the basic principals of coronary regulation. 2- Know the regulation of the pulmonary circulation. 3- Know the regulation of the cerebral circulation. 4- Know the regulation of the skeletal muscle blood flow at rest and during exercise. In this lecture we will describe: 1. The nervous and the mechanical factors affecting the coronary blood flow. 2. The role of the metabolic factor affecting the coronary blood flow. 3. The auto-regulation of the cerebral blood flow. 4. The nerve supply of the skeletal blood vessels and the skeletal blood flow during muscular exercise. 5. Compare and contrast between systemic and pulmonary circulation. The body is good at diverting blood to where it is needed. However, some circulations (e.g. cerebral and renal) are special in that their blood flow is usually preserved at the expense of others. King Abdul Aziz University 56 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue Lecture 20: Special circulations: Coronary , Pulmonary , Cerebral and Skeletal circulation. Student Notes: . Ganong, Review of Medical Physiology, 20th edition, page: 588 - 606 You have the opportunity to watch the CD-ROM about the Coronary, cerebral, skeletal and pulmonary circulation You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Circulation for special regions” –in the search engine google (www.google.com). http://www.Google.com Self-assessment Briefly answer the following in a short essay: What is reactive hyperaemia? Where dose it occur? Answer MCQs (1- 16) in Ganong, Review of Medical Physiology, 20th edition, page: 765 King Abdul Aziz University 57 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 21: Atherosclerosis and Aneurysm Student Notes: Department: Pathology Lecturer: Dr. Ali Sawan & Dr. Sawsan Jalalah At the end of this lecture you will be able to: 1) Outline the epidemiology, major and minor risk factors implicated in atherosclerosis. 2) Describe the hypothesis to explain the pathogenesis of atherosclerosis. 3) Outline the morphology of atherosclerosis. 4) Describe the complications of atherosclerosis. 5) Describe the clinical problems of atherosclerosis as related to the pathological findings. 6) Describe causes of aneurysms. 7) Explain pathogenesis of AAAs. The lecture will cover the following topics: 1) The importance of atherosclerosis is obvious from knowledge of its epidemiology of atherosclerosis and incidence in various countries. 2) The role of risk factors (major and minor) in the pathogenesis of atherosclerosis. 3) The detailed pathogenesis of atheroma formation. 4) The morphology of atheroma. 5) Definition of aneurysm and mechanism of its most common causes. Hyperlipidemia (LDL) must be remembered as controllable causes of coronary heart disease, especially in the young. King Abdul Aziz University 58 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 21: Atherosclerosis and Aneurysm Student Notes: . Robbins Basic Pathology 8 th edition Chapter 10; Pages: 343-352 You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html Self-assessment Describe the acute plaque changes. Describe the complications that may occur as a result of these changes. King Abdul Aziz University 59 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 22: Ischemic heart Disease Student Notes: Department: Pathology Lecturer : Dr. Ibrahim Alzahrani & Sawsan Jalalah . At the end of this lecture you will be able to: 1) Evaluate the epidemiology and pathogenesis of the ischemic heart diseases. 2) Differentiate between the various types of angina. 3) Explain the pathogenesis of myocardial infarction. 4) Explain the morphology of myocardial infarction. 5) Correlate the complications of MI with the tissue pathology. 6) Explain chronic ischemic heart diseases and sudden cardiac death. The lecture will cover the following topics: 1) types of Ischemic heart disease (IHD) 2) causes and pathogenesis of IHD 3) types of angina pectoris 4) myocardial infarction: pathogensis, location, size, morphology and complications. 5) pathogensis of chronic ischemic heart diseases. 6) Causes of sudden cardiac death. Unstable angina should be considered a medical emergency since it has a high mortality and it may rapidly lead to myocardial infarction. Rapid access to treatment will prevent this. King Abdul Aziz University 60 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue … Lecture 22: Ischemic heart Disease Robbins Basic Pathology 8 th edition Chapter 11; Pages: 388-398. You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html Self-assessment What are the complications of myocardial infarction? Which of these is considered a late complication? King Abdul Aziz University 61 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 23: Antihypertensive drugs Student Notes: Department: Pharmacology Lecturer:Prof. Abdel- Moneim Osman Magda Hagras - Dr. At the end of this lecture you will be able to: 1) Outline antihypertensive drugs 2) Outline drugs which can be used for treatment of angina 3) Describe drugs used in treatment of heart failure Beta-blockers - decrease HR, contraction & renin; bradycardia, increased lipids, (bronchoconstriction) ACE inhibitors - suppress formation of angiotensin II, vasodilatations; cough, dysguesia, depress renal function Ca2+antagonists - block Ca channels of the heart, dilate arterioles & veins modestly; oedema & constipation alpha1-antagonists - vasodilatations; ortho hypotension, syncope, tachycardia, syncope vasodilators - decrease peripheral resistance against which the heart must pump; arteriolar, veno-, combined acting vasodilators, +diuretic (ACE inhibitors) diuretics - removal of retained salt & water, reduce blood volume, diminished venous congestion (thiazides & loop), rapid relief, Ksparing to protect against digitalis-induced arrhythmias inotropic agents (digoxin) - increase contractility of failing heart (without elevating oxygen requirement), reverses all CHF manifestations, inhibition of Na-K activated ATP pump, increase intracellular calcium = increase force of contraction, electrical effects, aglycone+sugars, from foxglove, nursing implications King Abdul Aziz University 62 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 23: Antihypertensive drugs Student Notes: D. R. Laurance & P. N. Bennett, Clinical pharmacology, PP. 407 – 433. Katsung, Basic and Clinical Pharmacology, Chapter 11 You have the opportunity to watch the CD-ROM about the treatment of hypertension. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – Cardiovascular system, drugs – in the search engine google (www.google.com). The aim is to be able to use the search engine and also to recognize the rich resources in the web. http://www. Google.com Self-assessment Briefly answer the following short essay: Write short essay about anti-hypertensive drugs Write short account about the treatment of heart failure King Abdul Aziz University 63 Faculty of Medicine and Allied Sciences . Phase 2 Lecture 24: Cardiovascular Module Year 2 Tissue fluid formation and Edema Department: Physiology Lecturer : Dr. Atef Abood Dr. Azra Student Notes: By the end of this lecture you will be able to: 1- Understand the forces that cause tissue fluid formation. 2- Describe the factors affecting lymph flow. 3- Describe the disturbances that cause tissue fluid accumulation and edema. In this lecture we will describe: 1- The starling forces that cause tissue fluid formation. 2- The role of the capillary pressure and the colloidal osmotic pressure of plasma proteins in the formation of the tissue fluid. 3- The role of the lymphatic obstruction as a cause of edema 4- The role of increased venous pressure in formation of edema. 5- Edema, its types, and its mechanism. Hypo-proteinemia as in liver and renal diseases, increased venous pressure as in heart failure and the lymphatic obstruction as in Filariasis are causes of edema. King Abdul Aziz University 64 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Continue Lecture 24: Year 2 Tissue fluid formation and Edema Student Notes: Ganong, Review of Medical Physiology, 20th edition, page: 588 - 606 You have the opportunity to watch the CD-ROM about the lymphatic circulation You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Lymph, Tissue fluid formation, and Edema” –in the search engine google (www.google.com). http://www.Google.com Self-assessment Briefly answer the following in a short essay: Define edema, describe its causes. Answer MCQs (1- 16) in Ganong, Review of Medical Physiology, 20th edition, page: 765 King Abdul Aziz University 65 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 25: Valvular Heart Diseases Department: Pathology Student Notes: Lecturer: Dr. Taha Moatamad & Dr. Rana Bokhary At the end of the lecture you should be able to: Describe the pathogenesis, morphology & clinical features of: 1. 2. 3. 4. Rheumatic valvular disease. Calcific aortic stenosis. Myxomatous mitral valve. Prosthetic cardiac valves. The lecture will cover the following topics: 1. 2. 3. 4. 5. Major causes of valvular heart disease "congenital & acquired" with special attention to: Definition, epidemiology, & pathogenesis of rheumatic fever. Morphology, outcomes & clinical features of acute rheumatic heart disease (RHD) & chronic valvular deformities. Pathogenesis, morphology & clinical features of calcific aortic stenosis. Epidemiology, pathogenesis, morphology, clinical features & complications of myxomatous cardiac valve. Types & complications of prosthetic cardiac valves. King Abdul Aziz University 66 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Continue .... Lecture 25: Valvular Heart Diseases Robbins Basic Pathology, 8th edition. Chapter 11 – The Heart. Pages 400-406 & 409. You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html What is the clinical significance of rheumatic fever? What is the difference between acute rheumatic heart disease & chronic valvular deformities? What is the most important complication of deformed & prosthetic valves? (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 67 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 26: Infective Endocarditis. Department: Pathology Student Notes: Lecturer:Dr. Taha Moatamad &Dr. Rana Bokhary At the end of the lecture you should be able to: Describe the pathogenesis, morphology & clinical features of: 4. Infective endocarditis. 5. Nan-bacterial thrombotic endocarditis (NBTE). 6. Myocarditis. 7. Pericarditis. 8. Pericardial effusions. The lecture will cover the following topics: 3. Clinical classification, pathogenesis, high risk groups, causative organisms, morphology, clinical features & complications of infective endocarditis. 4. Etiology, pathogenesis, complications & clinical features of non-bacterial thrombotic endocarditis (NBTE) & Libman-Sacks endocarditis. 5. Causes, morphology & clinical features of myocarditis. 6. Causes, morphology, clinical features & outcomes of pericarditis & pericardial effusions. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 68 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue Lecture 26: Infective Endocarditis, Myocardial & Pericardial Diseases Student Notes: Robbins Basic Pathology, 8th edition. Chapter 11 – The Heart. Pages 406-408 & 414-417. You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html What is the difference between acute & subacute infective endocarditis? What are the different types of valvular vegetations? What are the causes of myocarditis? What are the causes of different types of pericarditis & pericardial effusions? King Abdul Aziz University 69 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 27: Hypertension and Effects on Blood Vessels and Heart Student Notes: Department: Pathology. Lecturer: Dr. Taha Moatamad & Dr. Sawsan Jalalah At the end of this lecture you will be able to: 1) Describe the difference between the types of systemic hypertension. 2) Explain the pathogenesis of systemic hypertension. 3) Differentiate between the types of hypertensive arteriolosclerosis. 4) Describe effects of systemic hypertension on the heart. 5) Define cor pulmonale and list its causes. The lecture will cover the following topics: 1) definition and classification of hypertension 2) pathogenesis of hypertension 3) effect of hypertension on blood vessels 4) hypertensive heart disease 5) definition and causesof cor pulmonale. 90% to 95% of hypertension is idiopathic. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 70 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue. Lecture 27: Hypertension and Effects on Blood Vessels and Heart Student Notes: Robbins Basic Pathology 8 th edition Chapter 10; Pages: 353-357 & Chapter 11 Pages 398-400 You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html Self-assessment You have seen a patient in emergency room suffers from severe headaches; his BP was 220/120. What is your diagnosis? What are the types of arteriolar changes can be seen in blood vessels due to this type of hypertension. King Abdul Aziz University 71 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 28: Vasculitis & Cardiovascular Tumors Student Notes: Department: Pathology. Lecturer: Dr. Ali Sawan & Dr. Rana Bokhary At the end of the lecture you should be able to: 1. Classify vasculitis & describe the pathogenesis, morphology & clinical features of giant-cell (temporal) arteritis 2. Classify vascular tumors & describe the morphology & clinical features of hemangioma, glomus tumor, Kaposi sarcoma, epithelioid hemangioendothelioma & angiosarcoma. 3. Classify cardiac tumors, describe the morphology & clinical features of myxoma, as well as enumerate primary origins of metastatic cardiac tumors. The lecture will cover the following topics: 1. Classification of vasculitis & subclassification of immune-mediated vasculitis. 2. Pathogenesis, morphology & clinical features of giant-cell (temporal) arteritis. 3. Classification of vascular tumors into benign, intermediate & malignant neoplasms. 4. Pathogenesis, morphology & clinical features of different vascular tumors covering the different variants of hemangioma & Kaposi sarcoma. 5. Classification of cardiac tumors with special attention to primary sources of metastatic tumors as well as morphology, & clinical effects of myxoma. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 72 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue Lecture 28:Vasculitis & Cardiovascular Tumors Student Notes: Robbins Basic Pathology, 8th edition. Chapter 10 – The Blood Vessels. Pages 362-364 & 371-377. Chapter 11 – The Heart. Pages 417-418. You can check more information on the pathology of the cardiovascular system from: www.pathguy.com & see nice gross & microscopic pathology pictures on: http://library.med.utah.edu/WebPath/webpath.html Classify vasculitis. Classify immune-mediated vasculitis. Classify vascular tumors. What are the variants of Kaposi sarcoma? Classify cardiac tumors. What is the most common primary origin of metastatic cardiac tumors & in which layer of the heart it tends to involve more? King Abdul Aziz University 73 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 29: Anti-anginal drugs Student Notes: Department: Pharmacology Lecturer: Prof. Abdel-Moneim Osman Dr. Magda Hagras At the end of this lecture,student will be able to 1-Outline antianginal drugs 2- Know the mechanism of action of antianginal drugs 3- know the Side effects of the antianginal drugs (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 74 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 29: Anti-anginal drugs Student Notes: D.R. Laurance & P.N. Bennet, Clinical pharmacology. Pages: 205 -216. You have the opportunity to watch the CD-ROM about the antianginal drugs. You can access the CDROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “antianginal drugs –in the search engine google (www.google.com). http://www. Google.com Self-assessment Write short essay on the mechanism of action of the antianginal drugs . King Abdul Aziz University 75 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 30: Anti-arrhythmic drugs Student Notes: Department: Pharmacology Lecturer: Prof. Abdel-Moneim Osman - Dr. Magda Hagras At the end of the lecture you should be able to: 1) Describe the mechanism of action of the antiarrhythmic agents in the Vaughan-William classification. 2) Explain the pharmacological properties of these drugs. 3) Relate the type of drug to be used for the type of arrhythmia. 4) Describe the various effects of digitalis on the heart. Anti-arrhythmic drugs are classified according to the Vaugham-William Classification. The four major classes (and some subdivisions) will be discussed, together with their action on the heart muscle. And examples of typical drugs in each category. In addition, a few other drugs which are often used in treating cardiac arrhythmias such as Digoxin will be discussed. The aims of antiarrhythmic drugs are: To decrease cell excitability To increase the refractory period To slow conduction or block conduction if already slow. King Abdul Aziz University 76 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 30: Anti-arrhythmic drugs Student Notes: D.R. Laurance & P.N. Bennet, Clinical pharmacology. Pages: 205 -216. You have the opportunity to watch the CD-ROM about the Anti-arrhythmic drugs. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “anti-arrhythmic drugs –in the search engine google (www.google.com). http://www. Google.com Self-assessment Write short essay on the mechanism of action of the anti-arrhythmic agents in the Vaughan-William classification. King Abdul Aziz University 77 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 31: Hyperlipoproteinamias and hypolipoproteinaemias Student Notes: Department: Biochemistry Lecturer: Prof. Mohd Ali Ajab Noor - Dr. Enayat Hashem At the end of this lecture you will be able to: 1) Recognise the six different types of hyperlipoproteinamia and understand their relationship to arthrosclerosis and coronary disease. 2) Give examples of both genetic and acquired factors that lead to hyperlipoproteinaemias 3) Give examples of hypolipoproteinaemias and their clinical significance. The WHO (Freidrickson) classification of hyperlipoproteinaemias will be described and discussed. The genetic and/or acquired factors responsible for the different hyperlipoprotienaemias will be described and their clinical significance will be discussed. Some hypolipo-proteinaemias will also be described and discussed. Hyperlipidaemia must be remembered as a controllable cause of coronary heart disease, especially in the young. (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 78 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 31: Hyperlipoproteinamias and hypolipoproteinaemias Student Notes: Rubin & Farber, Essential pathology, end edition. Pages 287 -294. You have the opportunity to watch the CD-ROM about the Hyperlipoproteinamias and hypolipoproteinaemias. You can access the CDROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Hyperlipoproteinamias and hypolipoproteinaemias” –in the search engine google (www.google.com). http://www. Google.com Self-assessment What treatment would you prescribe to lower plasma cholesterol? Why is reduced cholesterol intake important? Discuss the relation of cholesterol to low-density lipoproteins and high density lipoprotein. King Abdul Aziz University 79 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 32: Diagnostic cardiac enzymology Student Notes: Department: Biochemistry Lecturer Prof. Mohd Ajab Noor – Dr. Enayat Hashem At the end of this lecture you will be able to: 1) Evaluate the diagnostic value of the cardiac enzymes 2) Determine the use of CK-MB in the diagnosis of myocardial infarction. 3) Summarise the newer enzymes for the early diagnosis of MI 4) Outline cardiac injury and the use of cardiac markers in the diagnosis of the new syndromes of cardiac injury. The practical use of the traditional enzymes in the diagnosis of MI in a clinical setting will be discussed. The pitfalls of CK-MB as the gold standard will also be addressed. Modern understanding of myocardial ischemia has resulted in new clinical syndromes. How the latest biochemical markers (CK isoforms, troponins, Myoglobin) help to make a diagnosis of these syndromes (which change the treatment and prognosis of ischemic heart disease) will be outlined. Testing for the proteins specifically released from cardiac tissues can be a useful aid in confirming myocardial infarction. King Abdul Aziz University 80 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 32: Diagnostic cardiac enzymology Fagan, cardiovascular system, Physiology, 2nd edition, page: 152 - 153 You have the opportunity to watch the CD-ROM about the Diagnostic cardiac enzymology. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Diagnostic cardiac enzymology” –in the search engine google (www.google.com). • http://www. Google.com Self-assessment Draw a curve to show the levels of classic cardiac enzymes after myocardial infarction. King Abdul Aziz University 81 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Lecture 33: Drugs used in heart failure Student Notes: Department: Pharmacology Lecturer Dr. Osman Hasan – Dr. Mai Abdel Aleim At the end of this lecture you will be able to: 1) Describe the mode of action of each of the main groups of drugs used in the treatment of heart failure. 2) Determine in what type of institution some of these drugs might be contra-indicated. 3) Have some knowledge of their side effects. The therapeutic agents that can be used in the treatment of congestive heart failure include diuretics, positive inotropic agents, vasodilators, ACE inhibitors, and sympathomimetic agents. Students should understand the mechanism of each of these types of drugs and a typical example of each group together with some of the major side-effects. Heart failure is not a diagnosis. You must always identify the underlying pathology that is responsible. King Abdul Aziz University 82 (Insert here handouts and additional pages for notes if needed) Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Continue … Lecture 33: Drugs used in heart failure Student Notes: D. R. Laurance & P. N. Bennett, Clinical pharmacology, PP. 407 – 433. Katsung, Basic and Clinical Pharmacology, Chapter 11 You have the opportunity to watch the CD-ROM about the treatment of heart failure. You can access the CD-ROM during your spare time. In the computer cluster also you have the opportunity to see some useful web site about the cardiovascular system. I would recommend you to use the key words – “Drugs & heart failure” –in the search engine google (www.google.com). • http://www. Google.com Self-assessment You have been called to see a 56 year old patient with severe dyspnoea. After history and examination you diagnose heart failure. What drug treatment would you administer at this time and how would you give it? What are the indication, contra indications and cautions of such treatment? King Abdul Aziz University 83 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 34: Cardiovascular Investigations Student Notes: Department: Medicine Lecturer :Dr. Aisha Siddiqui/ Dr. Layth mimash Learning Objectives: At the end of the lecture, the student should be able to recognize the investigational note of: 1. ECG at rest. 2. Stress ECG. 3. CXR. 4. MRI / CT. 5. Echocardiography. 6. Angiograpy (Cardiac cathetarization). 7. Nuclear scan (Thalium scan..etc.) Not to over lookthe importance of cardiac enzymes such as Troponin … etc. Suggested references: 1. Davidson's Principles & Practice of Medicine. 2. Crush Module of Cardiovascular Diseas (Insert here handouts and additional pages for notes if needed) King Abdul Aziz University 84 Faculty of Medicine and Allied Sciences . Phase 2 Cardiovascular Module Year 2 Lecture 35: Cardiovascular causes of chest pain Student Notes: Department: Medicine Lecturer :Dr. Aisha Siddiqui/ Dr. Layth mimash Suggested references: 1. Davidson's Principles & Practice of Medicine. 2. Crush Module of Cardiovascular Disease. Learning Objectives: 1. Provide a differential diagnosis of acute chest pain. 2. Differentiate chest pain due to cardiac disease. 3. Differentiate ischaemic cardiac pain from non ischaemic cardiac pain. 4. Differentiate pain due to angina from pain due to myocardial infarction. 5. Outline the principals of managment of acute myocardial infarction & complications. King Abdul Aziz University 85 Faculty of Medicine and Allied Sciences . Phase 2 King Abdul Aziz University Cardiovascular Module 86 Year 2 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Practical King Abdul Aziz University 87 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department of Anatomy Practical (1) Middle mediastinum, heart in situ Demonstrator: The staff members Learning OBJECTIVES: At the end of this practical lesson, student should be able to: List the subdivisions of the mediastinum and their components. Develop clear concept on the anatomy of the pericardium. Detailed Contents: 1- Mediastinum: position, divisions, components and relations. 2- Pericardium: types, layers, sinuses, blood and nerve supply. READING: Suggested textbooks and other references: Richard S. Snell: Clinical Anatomy of Medical Students, 7th edition, Lippincott, William and Wilkins. Grant J. C.B.: Grant Anatomy, 10th edition, Lippincott, William and Wilkins. Practical notes in the department of Anatomy web site and its attached links: www.kauanatomy.com King Abdul Aziz University 88 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department: Physiology Practical 2: Heart sounds – prediction of timing of uncomplicated murmurs TUTOR: Dr. Al-hazimi – Dr. Maha Hegazi Department: Physiology SUMMARY: The stethoscope has two ends, the bell and the diaphragm. The diaphragm is better for listening to higher pitched sounds; therefore, it is best for hearing: first and second heart sounds systolic murmur aortic incompetence The bell of the stethoscope is best for low-pitched sounds e.g third and fourth heart sounds. Many sounds can be heard with stethoscope. Try to concentrate on hearing the heart sounds first. At the end of this session you will be able to: Describe the principle that creates the heart sounds Where on the chest wall can you best hear which sounds and why? Understand the genesis of murmurs. Classify the four most important valvular lesions and their corresponding murmurs. Draw, on a graph, the classic pattern of murmur in the case of mitral stenosis, mitral regulation, aortic stenosis, and aortic regulation. Ganong, Review of Medical Physiology, 20th edition, page: 547 - 549 You have the opportunity to watch the CD-ROM about “heart sounds” you can access the CD-ROM during your spare time. The computer cluster is in the 2nd floor of the medical library, building No. 7. King Abdul Aziz University 89 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department of Anatomy Practical (3) External features of the heart and coronary vessels Demonstrator: The staff members Learning OBJECTIVES: At the end of this practical lesson, student should be able to: Recognize and identify the external features of the heart Identify the coronary arteries and coronary sinus Detailed Contents: 1- Surfaces and borders of the heart 2- Grooves on the surfaces of the heart and their contents 3- Coronary arteries (origin and branches) 4- Coronary sinus (site, termination and tributaries) READING: Suggested textbooks and other references: Richard S. Snell: Clinical Anatomy of Medical Students, 7th edition, Lippincott, William and Wilkins. Grant J. C.B.: Grant Anatomy, 10th edition, Lippincott, William and Wilkins. Eroschenko V.P. Di Fiore’s: Atlas of histology with functional correlations. 9th edition. Lippincott, William and Wilkins. Practical notes in the department of Anatomy web site and its attached links: www.kauanatomy.com King Abdul Aziz University 90 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department of Anatomy Practical (4) Internal features of the heart Demonstrator: The staff members Learning OBJECTIVES: At the end of this practical lesson, student should be able to: Demonstrate the significance of a knowledge and understanding of the great vessels in the superior mediastinum and their surface marking. Understand the position of the cardiac chambers and their appearance of the chest radiograph. Understand the different methods of the cardiovascular imaging (ultrasonography. Computer topography, and Magnetic image resonance Understand the different radiographic procedures (Plain-X- ray chest, arteriography, venography and Doppler). Detailed Contents: 1- Heart: position, size and appearance. 2- Chambers of the heart and their sizes. 3- Features of the cavity of different chambers of the heart READING: Suggested textbooks and other references: Richard S. Snell: Clinical Anatomy of Medical Students, 7th edition, Lippincott, William and Wilkins. Grant J. C.B.: Grant Anatomy, 10th edition, Lippincott, William and Wilkins. Stimac,: Diagnosis Imaging. Practical notes in the department of Anatomy web site and its attached links: www.kauanatomy.com King Abdul Aziz University 91 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department: Physiology Practical 5: ECG Recording TUTOR: Prof Hosam Awad – Prof. Maha Hegazi SUMMARY: In student volunteers, students will locate, and connect the four limb electrodes to the volunteer. A recording will be made of each student at rest. The recording will be analysed by the students, and the following values will be measured: PQ interval, QRS duration, QT-interval, heart rate and the mean QRS vector. OBJECTIVES: To be familiar with recording an ECG To analyse an ECG. To determine the heart rate, several intervals and mean electrical axis. READING: Fagan, cardiovascular system, Physiology, 2nd edition, page: 143 -154 King Abdul Aziz University 92 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department: Biochemistry Practical 6: Determination of lipoproteins/plasma lipids TUTOR: Prof. Mohd Ali Ajab Noor - Dr. Enayat Hashem…… SUMMARY: An introduction will be given to laboratory methods for the assessment of plasma lipids and lipoproteins of patients. The following practical tasks will be set: (a) Visual inspection of normal and pathological (hyperlipoproteinaemic) plasma specimens and relation of the findings to the Fredrickson Classification. (b) Separation of normal and pathological lipoproteins by electrophoresis on agarose gel. N.B: staining, destaining and densitometric scanning of replicate electropherograms will be done for you. The practical will be concluded with a general discussion of the findings and their clinical importance. OBJECTIVES: At the end of this practical session you will be able to: 1) Recognise the role of the biochemistry laboratory in the assessment of the patient’s plasma lipid and lipoprotein status. 2) Recognise that valid results for patient lipid and lipoprotein status require that fasting blood samples be tested. 3) Interpret the results of plasma lipid and lipoprotein investigations and to relate them to the health care needs of the patient. READING: Practical Manual of Biochemistry Lab (See the technician in Biochemistry Lab) King Abdul Aziz University 93 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Practical 7: Atherosclerosis TUTOR: Dr. Ali Sawan & Dr. Sawsan Jalalah… Department: Pathology SUMMARY: The gross and microscopic morphology of atherosclerosis will be discussed and illustrated using gross specimen, digital images and microspic slides. OBJECTIVES: At the end of the session you should be able to: 1) Compare and contrast fibrofatty atheromas and fatty streaks. 2) Identify and describe the components of atheromas. 3) Describe the complications that occur in atheromas. READING: Robbins Basic Pathology 8 th edition Chapter 10; Pages: 348-351 King Abdul Aziz University 94 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department: Biochemistry Practical 8: Cardiac enzymes and proteins TUTOR: Prof. Mohd Ali Ajab Noor – Dr. Enayat Hashem SUMMARY: The practical use of the traditional enzymes in the diagnosis of MI in a clinical setting will be discussed. The pitfalls of CK-MB as the gold standard will also be addressed. Modern understanding of myocardial ischemia has resulted in new clinical syndromes. How the latest biochemical markers (CK isoforms, troponins, myoglobin) help to make a diagnosis of these syndromes will be outlined. At the end of this session you will be able to: Evaluate the diagnostic value of the cardiac enzymes. Determine the use of CK-MB in the diagnosis of myocardial infarction. Summarize the newer enzymes for the early diagnosis of the new syndromes of cardiac injury. Rubin & Farber, Essential Pathology, 2nd edition. Page 249 - 260 King Abdul Aziz University 95 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Practical 9: Myocardia Infarction/ Valvular Heart Diseases Department: Pathology TUTOR: Dr. Ibrahim Alzahrani, Taha Moatamad, Dr. Sawsan Jalalah Dr. Rana Bokhary SUMMARY: The morphology of myocardial infarction (gross and microscopic) will be discussed in different time durations after coronary artery occlusion. The morphology of rheumatic valvular disease (acute and chronic). The morphology of valvular changes in cases of infective endocarditis. At the end of the session you should be able to: 1) Analyse the histological features of myocardial infarction. 2) Explain the chronology of MI pathology. 3) Differentiate between vegetations of rheumatic fever and infective endocarditis. 4) Describe the valvular changes in chronic rheumatic heart disease. Robbins Basic Pathology 8 th edition Chapter 11; Pages: 391-394 & 403-405 King Abdul Aziz University 96 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Department: Pharmacology Practical # 10: Effects of Drugs on Isolated Mammalian Heart Tutor: Prof. Abdel Moneim M. Osman Dr. Hoda Alkarby Summary: This session describes different types of drugs affecting heart rate or force of contraction (either stimulant or depressant). It will show different types of receptors & the site of action of stimulatory or inhibitory drugs. References: Pharmacological Experimentson Isolated Preparations. By the Staff of the Dep. of Pharmacology, University of Edinburgh. E& S Livingstone LTD pp 104-111 King Abdul Aziz University 97 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Tutorial Department of Anatomy Tutorial (1): Anatomy of the Heart and Coronary vessels. Tutor: Staff members Learning Objectives: At the end of this practical lesson, student should be able to: 1. Structure of the heart and big vessels. 2. Relations of the heart and big vessels to the surroundings. 3. Development of the Heart and big vessels. 4. Fetal circulation and Common congenital heart diseases. Detailed Contents: Pericardium (shape, layers, sinuses, nerve and blood supply). Heart (shape, surfaces, borders, external features, surface anatomy, chambers, valves, conducting system, blood supply and nerve supply). Big vessels (Aorta, Pulmonary trunk, Superior and Inferior venae vcavae). Some important relations of the heart and big vessels to the surrounding structures. Development of the heart and big vessels (phases, sinus venosus, cardiac septa, conducting system, difference between fetal and adult circulations, Congenital malformations, Histological difference between skeletal and cardiac muscles). Suggested Textbooks and Other Reverences: Richard S. Snell. Clinical Anatomy for Medical Students, 7th edition, Lippincott, Williams and Wilkins. Grant J.C.B. Grant's Atlas of Anatomy. 10th edition. Lippincott, Williams and Wilkins. Stimac, Diagnostic Imaging. Practical notes in the Department of Anatomy Web Site and its attached links: www.kauanatomy.com King Abdul Aziz University 98 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Tutorial: Atherosclerosis /MyocardiacInfarction/ Valvular Heart Diseases/ Hypertension Department: Pathology TUTOR: Dr. Ibrahim Alzahrani, Ali Sawan, Taha Moatamad, Dr. Sawsan Jalalah Dr. Rana Bokhary SUMMARY: Discuss problems, questions, or mini cases provided by the tutor or suggested by the students. Small group and/or general discussion is encouraged between students. At the end of the session you should be able to: 1) Discuss topics covered in the module lectures and practical. 2) Analyze the cases in view of the knowledge gained during the course. Robbins Basic Pathology 8 th edition Chapter 10 & 11 King Abdul Aziz University 99 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Independent learning “Independent learning is a very essential skill for tomorrow’s doctors. We will train you to gain this important skill by asking you to read independently about specific topics in cardiovascular system” Study Histology of blood vessels and Relate structure to function in the circulation You may use the following objectives as guidelines: describe the histological structure of different blood vessels recognise specific cell types for the different tissues as well as those common to many tissues. relate the structure to function in all types of blood vessels. Ganong, Review of Medical Physiology, 20th edition, page: 556 – 559 Wheather’s Functional Histology (3rd ed) pp. 140 - 152 I would recommend you to use the key word – blood vessels & histology–in the search engine google (www.google.com). http://www. Google.com King Abdul Aziz University 100 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Embryology of the heart and great vessels You may use the following objectives as guidelines: describe the process of angiogenesis list the part of the primitive heart describe the basic plan of early embryonic circulation describe the process of interatrial septum development list the embryonic sources of membraneous interventricular septum describe the development of arch of the aorta, carotid arteries and subclavian arteries Sadler T. W. (ed), Langmans Medical Emberyology, 5th ed, 168 - 194 I would recommend you to use the key words – Embryology of the heart –in the search engine google (www.google.com). http://www. Google.com King Abdul Aziz University 101 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Congenital heart diseases You may use the following objectives as guidelines: Classify congenital heart diseases by incidence. Describe the hemodynamics involved in common congenital heart diseases Describe the clinical presentation of the common heart diseases Explain the embryologic basis of Fallot’s tetralogy Describe the emberyonic basis of patent ductus arteriosus, coarctation of the aorta, and transposition of great vessels. Explain the complications of congenital heart diseases Ganong, Review of Medical Physiology, 20th edition, page: 664 Rubin & Farber, Essential pathology, 2nd edition. PP. 284-291 I would recommend you to use the key words – Congenital Heart Disease–in the search engine google (www.google.com). http://www. Google.com King Abdul Aziz University 102 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Factors affecting tissue perfusion You may use the following objectives as guidelines: Define autoregulation and describe its role in physiology Describe the important factors that affect tissue perfusion. List the principal vasoregulatory factors secreted by endothelial cells, and describe the function of each. Name the main hormones that affect tissue perfusion. Ganong, Review of Medical Physiology, 20th edition, page: 568 - 573 I would recommend you to use the key word – tissue perfusion, factors–in the search engine google (www.google.com). http://www. Google.com King Abdul Aziz University 103 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 PBL PBL process The clinical scenario Key information Explore the problem What you know What you need to know Identify learning issues Self/group study Share the knowledge Solve the problem Give feedback & reflect King Abdul Aziz University 104 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Introduction During this week you will work through the case of a patient who has a history of chest pain. 50 year old taxi driver admitted with a two hours history of sever “crushing” central chest pain. He has 8 children. He also gives a history of being tired recently and under stress. He has had “indigestion” for some weeks especially if walking after a heavy meal. His father died of a heart attack aged 48. He takes no exercise and spends his time at work behind the wheel of his taxi. He smokes 40 cigarettes a day. He is still in pain. Physical examination shows that he is pale clammy and sweating profusely. He has tachycardia of 100/min. Blood pressure is 100/70 mmHG. The jugular venous pressure is elevated to 6 cm. There are no other signs of cardiac failure. The heart sounds are normal. ECG shows ST elevation in leads II, III, and aVF. The changes are consistent with an acute inferior myocardial infarction. The first CK is normal. The cardiothoracic ratio on chest X-ray is normal and the lung field is clear. The following day the CK has risen to 1800 U/L. After making good progress, the patient suddenly becomes breathless. On examination, the pulse is irregularly irregular, the blood pressure is 80/40 mmHg and there is a new pansystolic murmur at the apex radiating to the axilla. There are wide spread cripitations over both lung fields. The chest X-ray now shows cardiomegaly with pulmonary congestion most marked around the hila. Echocardiography shows normal left ventricular function with turbulent Doppler flow in systole from the left ventricle into the left atrium. ECG shows atrial fibrillation. The patient makes good progress and has no further complications during his convalescence. He is due to go home shortly. He wishes to know what treatment he has received, what he will receive in the weeks a head and what rehabilitation program he should follow. Despite an advice to the contrary you find out that he has returned to work a taxi driver six weeks following his MI. King Abdul Aziz University 105 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Aims of the PBL sessions Provide differential diagnosis of acute chest pain Differentiate chest pain due to cardiac disease from non-cardiac causes Differentiate pain due to angina from pain due to myocardial infarction Describe the principles of management of acute myocardial infarction Describe the principles of management of an acute myocardial infarction and its complications Appreciate the importance of primary and secondary prevention, including cardiac rehabilitation, of acute myocardial infarction. Prerequisite You should be able to describe the gross anatomy of the heart with special reference to the area supplied by each coronary artery. You should be able to take a full cardiovascular history including a risk factor profile You should understand the clinical events which are responsible for each part of the ECG waveform You should be familiar with the biochemical markers of myocardial cell damage. King Abdul Aziz University 106 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Learning opportunity Fagan, cardiovascular system, Physiology, 2nd edition, page: 121 -140 Ganong, Review of Medical Physiology, 20th edition Try to access CD-ROM series about the CVS. The computer cluster is in the 2nd floor of the medical library, building No. 7. I would recommend you to use the key words – chest pain & case study –in the search engine google (www.google.com). The aim is to recognize the rich resources in the web. o http://www. Google.com King Abdul Aziz University 107 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Learning issues At the end of the first session you will be able identify the learning issues which related to the above clinical problem. Try to summarize these learning issues in the table below. We recommend you to learn about these issues. This will help you to solve the problem in the next session. Learning issues ………………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ………… Notes …………………………………………………………… King Abdul Aziz University 108 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Key Facts Causes of chest pain include: Myocardial infarction Pulmonary embolus Aortic dissection Peumothorax Herps Zoster Pericarditis Arrhythmic complications of myocardial infarction: Emergency Care of acute myocardial infarction: Active peptic ulceration CVA in previous six months Uncontrolled hypertension Aggressive CPR Warfrin therapy Proliferative diabetic retinopathy IV access Asprin Analgesia with opiates Oxygen if breathless Thrombolysis if indicated Ventricular fibrillation Ventricular tachycardia Atrial fibrillation Atrial flutter First second or third (complete) degree heart block Asystole Electromechanical dissociation Indications for thrombolysis Unequivocal acute myocardial infarction in the absence of contra-indications i.e. chest pain for more than 12 hours with ECG showing ST elevation or a new LBBB. Secondary prevention of myocardial infarction: Risk factors can be divided into those which are modifiable such as smoking, hypertension and hypercholesterolaemia and those which are not modifiable such as age, sex, ethnic origin, family history, and past medical history. Contraindications to thrombolysis: Suspected aortic dissection Recent haemorrhage Major surgery or trauma within previous two weeks King Abdul Aziz University Secondary preventive treatment is targeted on the modifiable risk factors. 109 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Introduction During this week you will work through the case of a patient who has a history of heart failure. A 62-year-old man is transferred to your hospital because of recurrent dyspnoea 5 days after suffering a large myocardial infarction. On the day of arrival he is free of chest pain but is still breathing with moderate difficulty. You obtain a chest radiograph, which confirms increased distended pulmonary vasculature, septal lines, and an enlarged heart. An echocardiogram shows an enlarged heart and an ejection fraction of 30% with minimal systolic motion of the anterior and apical portions of the heart. The patient is in normal sinus rhythm, with a heart rate of 110. Arterial blood pressure is 96/68, mean 82, respiratory rate 25/min. On cardiac auscultation you hear a S3 gallop, a S4 gallop, a normal S1 and S2, and a soft murmur that encompasses systole (holosystolic), and has uniform intensity that is heard at the apex and radiates to the left axilla. There are fine, late-inspiratory crackles (crepitations) heard about a third of the way up both lung fields. Arterial blood gases reveal a PaO2 of 60 mmHg, PaCO2 of 30 mmHg and pH of 7.37 King Abdul Aziz University 110 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Aims of the PBL sessions Provide differential diagnoses of heart failure Differentiate dysnoea due to cardiac disease from non-cardiac causes Describe the principles of management of acute heart failure Describe the principles of management of an acute myocardial infarction and its complications Appreciate the importance of primary and secondary prevention, including cardiac rehabilitation, of heart failure. Prerequisite You should be able to describe the gross anatomy of the heart with special reference to the area supplied by each coronary artery. You should be able to take a full cardiovascular history including a risk factor profile You should be familiar with the nurohumoral regulation of the cardiovascular system. Learning opportunity Fagan, cardiovascular system, Physiology, 2nd edition, page: 121 -140 Ganong, Review of Medical Physiology, 20th edition Try to access CD-ROM series about the CVS. The computer cluster is in the 2nd floor of the medical library, building No. 7. I would recommend you to use the key words – heart failure & case study –in the search engine google (www.google.com). The aim is to recognize the rich resources in the web. http://www. Google.com King Abdul Aziz University 111 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Learning issues At the end of the first session you will be able identify the learning issues which related to the above clinical problem. Try to summarize these learning issues in the table below. We recommend you to learn about these issues. This will help you to solve the problem in the next session. Learning issues ………………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… …… Notes … King Abdul Aziz University 112 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Key Facts Mechanical complications of myocardial infarctions include: Actute left ventricular failure Cardiogenic shock Cardiac rupture Pericardial tamponade Ventricular aneurysm Ventricular septal defect Mitral regulation Causes of heart failure: Myocardial dysfunction Volume overload Pressure overload Impaired filling Arrythmias High output King Abdul Aziz University 113 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Introduction During this week you will work through the case of a patient who has a history of valvular disease. You are asked to supervise an exercise stress test on a 65-year-old man. He saw his doctor last week for exertional chest pain and mild dysnoea. He has had chest discomfort for about a year, but the increased frequency of angina promoted him to see his doctor. He has chest pain when he walks more than one block, and if he continues he becomes breathless. He never has chest pain or dyspnea at rest. He has no ankle swelling, orthopnoea, or paroxysmal nocrtornal dysnoea. When you examine him before the stress test, his blood pressure is 120/86, heart rate 82 and regular, jagular venous pressure is 120/86. Heart rate 82 and regular, jugular venous pressure 5 cmH2O, and lungs are clear. His apex beat is slightly lateral to the midclavicular line and mildly sustained. He has a soft crescendodecrescendo systolic murmur, best heard at the upper right sternal border, radiating to the carotids and the apex. The carotid pulses are delayed and diminished. You call the refereeing doctor to discuss the signs and symptoms, cancel the stress test, and perform an echocardiogram instead. King Abdul Aziz University 114 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Aims of the PBL sessions Provide a differential diagnosis of dysnoea Differentiate dysnoea due to cardiac disease from non-cardiac causes Describe the principles of stress test Describe the principles of management valvular dieases Appreciate the importance of primary and secondary prevention, including cardiac rehabilitation, of valvular dieases. Prerequisite You should be able to describe the gross anatomy of the heart with special reference to the area supplied by each coronary artery. You should be able to take a full cardiovascular history including a risk factor profile You should be familiar with the neurohumoral regulation of the cardiovascular system. Learning opportunity Fagan, cardiovascular system, Physiology, 2nd edition, page: 121 -140 Ganong, Review of Medical Physiology, 20th edition Try to access CD-ROM series about the CVS. The computer cluster is in the 2nd floor of the medical library, building No. 7. I would recommend you to use the key words – heart failure & case study –in the search engine google (www.google.com). The aim is to recognize the rich resources in the web. http://www. Google.com King Abdul Aziz University 115 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Learning issues At the end of the first session you will be able identify the learning issues which related to the above clinical problem. Try to summarize these learning issues in the table below. We recommend you to learn about these issues. This will help you to solve the problem in the next session. Learning issues ………………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ………… Notes …………………………………………………………… King Abdul Aziz University 116 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Key Facts Mechanical complications of myocardial infarctions include: Actute left ventricular failure Cardiogenic shock Cardiac rupture Pericardial tamponade Ventricular aneurysm Ventricular septal defect Mitral regulation Causes of heart failure: Myocardial dysfunction Volume overload Pressure overload Impaired filling Arrythmias High output King Abdul Aziz University 117 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Introduction During this week you will work through the case of a patient who has a history of shock. A 27 year old male is involved in a road traffic accident (RTA). He has multiple wounds and fractures in his leg. He has been transferred to the ER in your hospital. You have been called to see the patients. You found the patient comatose. On examination his blood pressure is 80/40 and his heart rate is 120 bpm. How would you classify this patients' haemodynamic status? How would you manage this patient? What is the role of primary and secondary prevention in this case? King Abdul Aziz University 118 Faculty of Medicine and Allied Sciences Phase 2 Cardiovascular Module Year 2 Aims of the PBL sessions Provide a differential diagnosis of shock Differentiate shock due to cardiac disease from non-cardiac causes Describe the effect of shock on the cardiovascular system Describe the principles of management shock Appreciate the importance of primary and secondary prevention of shock. Prerequisite You should be able to describe the gross anatomy of the heart with special reference to the area supplied by each coronary artery. You should be able to take a full cardiovascular history including a risk factor profile You should be familiar with the types and causes of shock. Learning opportunity Fagan, cardiovascular system, Physiology, 2nd edition, page: 121 -140 Ganong, Review of Medical Physiology, 20th edition Try to access CD-ROM series about the CVS. The computer cluster is in the 2nd floor of the medical library, building No. 7. I would recommend you to use the key words – shock & case study –in the search engine google (www.google.com). The aim is to recognize the rich resources in the web. http://www. Google.com King Abdul Aziz University 119 Faculty of Medicine and Allied Sciences Learning issues At the end of the first session you will be able identify the learning issues which related to the above clinical problem. Try to summarize these learning issues in the table below. We recommend you to learn about these issues. This will help you to solve the problem in the next session. Learning issues Notes ………………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ……………………………………………………………………… ………… …………………………………………………………… Phase II Cardiovascular Module Key facts Cardiogenic shock Acute myocardial infarction Acute aortic incompetence Ischaemic mitral regurgitation LV aneurysm Myocardial contusion ~ 40% of myocardium damaged leading to Shock Obstructive shock Outflow obstruction ->pulmonary embolus Inflow obstruction -> Cardiac tamponade Hypovolaemic shock Exogenous loss from haemorrhage Endogenous loss -> third space loss & capillary leak syndrome Distributive shock A state of relative hypovolaemia (eg. loss blood oncotic pressure). Impaired distribution and oxygen utilisation. 121 Faculty of Medicine