A1979HZ24300001
... Professor of Cardiology Harvard School of Public Health Boston, MA 02115 January 24, 1978 “Perhaps the seed of the idea to develop a new approach for controlling tachycardias of all types was planted during the many night vigils with patients afflicted with these cardiac disorders who did not respon ...
... Professor of Cardiology Harvard School of Public Health Boston, MA 02115 January 24, 1978 “Perhaps the seed of the idea to develop a new approach for controlling tachycardias of all types was planted during the many night vigils with patients afflicted with these cardiac disorders who did not respon ...
Sexual Differences in the Diameter of Coronary Arteries
... ILAYPERUMA, I.; NANAYAKKARA, B. G. & PALAHEPITIYA, K. N. Sexual differences in the diameter of coronary arteries in an adult Sri Lankan population. Int. J. Morphol., 29(4):1444-1448, 2011. SUMMARY: Coronary artery disease is a major cause of human mortality. It is stated that females have worse outc ...
... ILAYPERUMA, I.; NANAYAKKARA, B. G. & PALAHEPITIYA, K. N. Sexual differences in the diameter of coronary arteries in an adult Sri Lankan population. Int. J. Morphol., 29(4):1444-1448, 2011. SUMMARY: Coronary artery disease is a major cause of human mortality. It is stated that females have worse outc ...
ANGINA PECTORIS TREATMENT
... (Mechanical Revascularization) - Coronary angioplasty - Stenting PCI is more effective than medical therapy for relief of angina symptoms but does not reduce the risk of MI ...
... (Mechanical Revascularization) - Coronary angioplasty - Stenting PCI is more effective than medical therapy for relief of angina symptoms but does not reduce the risk of MI ...
Pulmonary semilunar valve
... • If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Extra beats forming at other sites are called ectopic pacemakers – caffeine & nicotine increase activity ...
... • If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Extra beats forming at other sites are called ectopic pacemakers – caffeine & nicotine increase activity ...
Q1-3 Circulatory System
... stretching/ *pulse – stretching arteries 3. Blood Pressure – force of blood against artery walls a. Systolic Pressure – upper number (120mmHg) Pressure when ventricles contract b. Diastolic Pressure – ventricles relaxed (70mmHg) c. Hypertension – high blood pressure Caused from too much salt, “stiff ...
... stretching/ *pulse – stretching arteries 3. Blood Pressure – force of blood against artery walls a. Systolic Pressure – upper number (120mmHg) Pressure when ventricles contract b. Diastolic Pressure – ventricles relaxed (70mmHg) c. Hypertension – high blood pressure Caused from too much salt, “stiff ...
Congestive heart failure in pediatrics age groups Congestive
... also myocardial O2 consumption. It is useful in controlling heart rate in paroxysmal atrial tachycardia and atrial fibrillation. Digoxin has half-life of 36 hours and the initial effect is after 30 minutes. Though rapid digitalization is considered safe in children, slow digitalization may be consid ...
... also myocardial O2 consumption. It is useful in controlling heart rate in paroxysmal atrial tachycardia and atrial fibrillation. Digoxin has half-life of 36 hours and the initial effect is after 30 minutes. Though rapid digitalization is considered safe in children, slow digitalization may be consid ...
Ventricular Septal Defect PDF
... to the lungs (pulmonary artery banding) to prevent high pressure and, hence, damage to the lungs. At one to two years of age, this operation would be reversed and the holes closed. It would then be easier as the child would be bigger. Cardiac catheterisatio0n may be needed prior to surgery. Rarely, ...
... to the lungs (pulmonary artery banding) to prevent high pressure and, hence, damage to the lungs. At one to two years of age, this operation would be reversed and the holes closed. It would then be easier as the child would be bigger. Cardiac catheterisatio0n may be needed prior to surgery. Rarely, ...
Practical Approach to Anesthesia for Parturient with Cardiac Disease
... associated with a trans-valvular gradient of 50mmHg with significant increase in after load to the LV. A valvular gradient which exceeds 100mmHg carries an increased risk of myocardial ischemia as the LV hypertrophies significantly. In aortic stenosis transvalvular gradient increases progressively t ...
... associated with a trans-valvular gradient of 50mmHg with significant increase in after load to the LV. A valvular gradient which exceeds 100mmHg carries an increased risk of myocardial ischemia as the LV hypertrophies significantly. In aortic stenosis transvalvular gradient increases progressively t ...
chapter_7 - Elsevier
... Figure 7.4 Heart regeneration in the zebrafish. (A) Longitudinal section through an intact heart. ba, bulbus arteriosus. (B) Heart after amputation of 20% of ventricle. (C) Higher magnification of unamputated ventricular apex, showing the level of amputation. (D) One day post-amputation, showing pla ...
... Figure 7.4 Heart regeneration in the zebrafish. (A) Longitudinal section through an intact heart. ba, bulbus arteriosus. (B) Heart after amputation of 20% of ventricle. (C) Higher magnification of unamputated ventricular apex, showing the level of amputation. (D) One day post-amputation, showing pla ...
The cardiovascular system and its response to exercise
... and is found in the arteries (except in the pulmonary artery). Deoxygenated blood has less oxygen and is found in the veins (except in the pulmonary vein.) ...
... and is found in the arteries (except in the pulmonary artery). Deoxygenated blood has less oxygen and is found in the veins (except in the pulmonary vein.) ...
Ch 13 Cardiac Cycle
... 1. MVP - mitral valve prolapse, the mitral valve does not close all the way; this creates a clicking sound at the end of a contraction. 2. Heart Murmurs – valves do not close completely, causing an (often) harmless murmur sound. Sometimes holes can occur in the septum f the heart which can also caus ...
... 1. MVP - mitral valve prolapse, the mitral valve does not close all the way; this creates a clicking sound at the end of a contraction. 2. Heart Murmurs – valves do not close completely, causing an (often) harmless murmur sound. Sometimes holes can occur in the septum f the heart which can also caus ...
PERindopril—Function of the Endothelium in Coronary Artery
... the effect of the ACE-inhibitor Perindopril on morbidity and mortality in over 12,000 patients with stable coronary artery disease without clinical heart failure. The PERFECT study is designed as a parallel group randomised placebo controlled trial to determine the effect of Perindopril (8 mg) on br ...
... the effect of the ACE-inhibitor Perindopril on morbidity and mortality in over 12,000 patients with stable coronary artery disease without clinical heart failure. The PERFECT study is designed as a parallel group randomised placebo controlled trial to determine the effect of Perindopril (8 mg) on br ...
Safety Reports Series No.60
... score <100 have a low cardiac event rate and those with a score >400 are at a moderate to high risk of coronary events in the next 2–5 years, especially those with several known cardiac risk factors. It has also been suggested that calcium scoring may provide additional information that could be hel ...
... score <100 have a low cardiac event rate and those with a score >400 are at a moderate to high risk of coronary events in the next 2–5 years, especially those with several known cardiac risk factors. It has also been suggested that calcium scoring may provide additional information that could be hel ...
Heart Anatomy and Cardiac Muscle Cell Structure
... Increased EDV or myocardial fiber length results in increased SV or increased strength of contraction. Basis for Starling’s Law: P = 2T/r where P = pressure in ventricle or aorta at ejection T = myocardial tension required to generate that tension r = radius of ventricle at beginning of systole P = ...
... Increased EDV or myocardial fiber length results in increased SV or increased strength of contraction. Basis for Starling’s Law: P = 2T/r where P = pressure in ventricle or aorta at ejection T = myocardial tension required to generate that tension r = radius of ventricle at beginning of systole P = ...
Understanding the 12-lead ECG, part II
... Some of them are conducted to the ventricles while others are blocked; therefore, it is second-degree AV block. In this tracing, when the P waves are conducted, the PR intervals do not lengthen; therefore, this is second-degree AV ...
... Some of them are conducted to the ventricles while others are blocked; therefore, it is second-degree AV block. In this tracing, when the P waves are conducted, the PR intervals do not lengthen; therefore, this is second-degree AV ...
Coronary Artery Spasm is a Nightmare: a Rare Case of Multi Vessel
... with ST-segment elevation on ECG. In severe cases, such as multivessel coronary artery spasm associated arrhythmias may be present ranging from heart block to ventricular tachycardia [3]. If it had not promptly diagnosed and treated, coronary artery spasm might result in myocardial infarction with l ...
... with ST-segment elevation on ECG. In severe cases, such as multivessel coronary artery spasm associated arrhythmias may be present ranging from heart block to ventricular tachycardia [3]. If it had not promptly diagnosed and treated, coronary artery spasm might result in myocardial infarction with l ...
A Rare Case of Congenital Coronary Artery Fistula Evaluated by
... In a patient with coronary artery fistula extending from anterior aortic sinus to posterosuperior wall of right atrium, Magnetic Resonance Imaging was able to accurately demonstrate dilatation of the involved coronary artery, the tortuous nature of the dilated fistula, blood flow within the fistula ...
... In a patient with coronary artery fistula extending from anterior aortic sinus to posterosuperior wall of right atrium, Magnetic Resonance Imaging was able to accurately demonstrate dilatation of the involved coronary artery, the tortuous nature of the dilated fistula, blood flow within the fistula ...
Cardiac Biomarkers - Clinician`s Brief
... respiratory disease in cats presented for dyspnea.7 Unfortunately, although cTnI was indeed higher in the cats with heart failure, levels were also somewhat elevated in cats with respiratory disease. As a result, cTnI is not as useful as once hoped. NT-proBNP appears to be a better test to distingui ...
... respiratory disease in cats presented for dyspnea.7 Unfortunately, although cTnI was indeed higher in the cats with heart failure, levels were also somewhat elevated in cats with respiratory disease. As a result, cTnI is not as useful as once hoped. NT-proBNP appears to be a better test to distingui ...
Chapter 17 The cardivascular system I the heart
... the heart muscle receives an inadequate amount of blood due to obstruction of its blood supply. It is the leading cause of death in the United States each year. The principal causes of narrowing include atherosclerosis, coronary artery spasm, or a clot in a coronary artery. 1. Atherosclerosis is a p ...
... the heart muscle receives an inadequate amount of blood due to obstruction of its blood supply. It is the leading cause of death in the United States each year. The principal causes of narrowing include atherosclerosis, coronary artery spasm, or a clot in a coronary artery. 1. Atherosclerosis is a p ...
CV Pathophysiology
... 14. HTN: direct effects by causing endothelial damage due to increased hemodynamic stress 15. Smoking: oxidative modification of LDL to mLDL; decreases HDL levels; endothelial dysfxn due to hypoxia etc; prothrombotic 16. Exercise enhances insulin sensitivity and endothelial NO production 17. Estroge ...
... 14. HTN: direct effects by causing endothelial damage due to increased hemodynamic stress 15. Smoking: oxidative modification of LDL to mLDL; decreases HDL levels; endothelial dysfxn due to hypoxia etc; prothrombotic 16. Exercise enhances insulin sensitivity and endothelial NO production 17. Estroge ...
STUDY GUIDE BSL 111
... 1.) Heart anatomy – pig hearts and human model – Identify all listed parts/structures 2.) EKG – deflection waves (where they signify), where electrodes are placed for lead II (like in lab), identify abnormal EKG’s discussed in lab 3.) Case Study – atrioventricular dissociation (3rd Degree Heart Bloc ...
... 1.) Heart anatomy – pig hearts and human model – Identify all listed parts/structures 2.) EKG – deflection waves (where they signify), where electrodes are placed for lead II (like in lab), identify abnormal EKG’s discussed in lab 3.) Case Study – atrioventricular dissociation (3rd Degree Heart Bloc ...
Coronary arteries morphometry and their vascular territories
... by each coronary artery executed on a GE LightSpeed VCT64 Slice CT Scanner. To assess the type of vascularization (coronary dominance) we used also dissection on fresh and formalin preserved hearts, injection of contrast substance followed by radiography and plastic mass injection followed by corros ...
... by each coronary artery executed on a GE LightSpeed VCT64 Slice CT Scanner. To assess the type of vascularization (coronary dominance) we used also dissection on fresh and formalin preserved hearts, injection of contrast substance followed by radiography and plastic mass injection followed by corros ...
Document
... Heart Sounds – due to vibrations in heart tissues as blood rapidly changes velocity within the heart ...
... Heart Sounds – due to vibrations in heart tissues as blood rapidly changes velocity within the heart ...
Circulatory_system_311
... gets oxygen and releases carbon dioxide carries the oxygenated blood to cells The cells give up waste products to the blood ...
... gets oxygen and releases carbon dioxide carries the oxygenated blood to cells The cells give up waste products to the blood ...
Coronary artery disease
Coronary artery disease (CAD), also known as ischemic heart disease (IHD), atherosclerotic heart disease, atherosclerotic cardiovascular disease, and coronary heart disease, is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and sudden coronary death. It is within the group of cardiovascular diseases of which it is the most common type. A common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Occasionally it may feel like heartburn. Usually symptoms occur with exercise or emotional stress, last less than a few minutes, and gets better with rest. Shortness of breath may also occur and sometimes no symptoms are present. The first sign is occasionally a heart attack. Other complications include heart failure or an irregular heartbeat.Risk factors include: high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol, among others. Other risks include depression. The underlying mechanism involves atherosclerosis of the arteries of the heart. A number of tests may help with diagnoses including: electrocardiogram, cardiac stress testing, coronary computed tomographic angiography, and coronary angiogram, among others.Prevention is by eating a healthy diet, regular exercise, maintaining a healthy weight and not smoking. Sometimes medication for diabetes, high cholesterol, or high blood pressure are also used. There is limited evidence for screening people who are at low risk and do not have symptoms. Treatment involves the same measures as prevention. Additional medications such as antiplatelets including aspirin, beta blockers, or nitroglycerin may be recommended. Procedures such as percutaneous coronary intervention (PCI) or coronary artery bypass surgery (CABG) may be used in severe disease. In those with stable CAD it is unclear if PCI or CABG in addition to the other treatments improve life expectancy or decreases heart attack risk.In 2013 CAD was the most common cause of death globally, resulting in 8.14 million deaths (16.8%) up from 5.74 million deaths (12%) in 1990. The risk of death from CAD for a given age has decreased between 1980 and 2010 especially in the developed world. The number of cases of CAD for a given age has also decreased between 1990 and 2010. In the United States in 2010 about 20% of those over 65 had CAD, while it was present in 7% of those 45 to 64, and 1.3% of those 18 to 45. Rates are higher among men than women of a given age.