Human Physiology Lab
... its own rhythmic action potentials for contraction of myocardial cells (cardiac muscle cells). The rhythmic beating of the heart is controlled by a small group of cells in the wall of the right atrium, collectively called the sinoatrial node (SA node). Because the SA node controls heart rate, it is ...
... its own rhythmic action potentials for contraction of myocardial cells (cardiac muscle cells). The rhythmic beating of the heart is controlled by a small group of cells in the wall of the right atrium, collectively called the sinoatrial node (SA node). Because the SA node controls heart rate, it is ...
Assessment of Left Ventricular Function in Aortic Stenosis using
... Calcific Aortic Stenosis (CAS) is defined as progressive narrowing of the aortic valve leading to subsequent increased afterload which triggers the development of left ventricular hypertrophy. The severity of both valve narrowing and ventricular hypertrophy determine how quickly patients with CAS de ...
... Calcific Aortic Stenosis (CAS) is defined as progressive narrowing of the aortic valve leading to subsequent increased afterload which triggers the development of left ventricular hypertrophy. The severity of both valve narrowing and ventricular hypertrophy determine how quickly patients with CAS de ...
homeostatic imbalance
... Blockage of the coronary arterial circulation can be serious and sometimes fatal: -Angina pectoris is thoracic pain caused by the temporary lack of oxygen but do not die. -Myocardial infarction (MI), is cell death due to prolonged coronary blockage. -Because adult cardiac muscle is essentially amito ...
... Blockage of the coronary arterial circulation can be serious and sometimes fatal: -Angina pectoris is thoracic pain caused by the temporary lack of oxygen but do not die. -Myocardial infarction (MI), is cell death due to prolonged coronary blockage. -Because adult cardiac muscle is essentially amito ...
EL-MINIA MED. BULL. VOL. 22, NO. 2, JUNE, 2011 Sayed et al
... β- thalassemia major is iron deposition in cardiac tissue resulting in degeneration, fibrosis and dysfunction1. Cardiac disease is the primary cause of death2. The treatment of thalassemia major has traditionally ...
... β- thalassemia major is iron deposition in cardiac tissue resulting in degeneration, fibrosis and dysfunction1. Cardiac disease is the primary cause of death2. The treatment of thalassemia major has traditionally ...
New publication
... “That job satisfaction level is an important factor influencing the health of workers. Organisations should include the development of stress management policies...” (18). ...
... “That job satisfaction level is an important factor influencing the health of workers. Organisations should include the development of stress management policies...” (18). ...
Current Cardiac Surgery in South Africa
... • Bypass sets in motion a state or systemic shock which needs to be managed • The definition of a successful surgery is turning a disease we cannot treat into one we can kind of treat • Most complications occur within the first 24 hours post bypass • They range from haemorrhage, hypoxia, cardiac arr ...
... • Bypass sets in motion a state or systemic shock which needs to be managed • The definition of a successful surgery is turning a disease we cannot treat into one we can kind of treat • Most complications occur within the first 24 hours post bypass • They range from haemorrhage, hypoxia, cardiac arr ...
KS5_Heart_Pupil_Sheets
... The heart must never stop beating, so its cells must never fatigue. Heart walls are made up of cardiac muscle. Cardiac muscle tissue consists of specially adapted cells, which have many mitochondria for continuous aerobic respiration. Cardiac muscle tissue is a multinucleate syncytium. The cells are ...
... The heart must never stop beating, so its cells must never fatigue. Heart walls are made up of cardiac muscle. Cardiac muscle tissue consists of specially adapted cells, which have many mitochondria for continuous aerobic respiration. Cardiac muscle tissue is a multinucleate syncytium. The cells are ...
Clinical Application of the HF Diagnostic Trends
... or IV) in those patients who remain symptomatic despite stable, optimal medical therapy, and have a left ventricular ejection fraction less than or equal to 35% and a prolonged QRS duration. Indications for Virtuoso: Virtuoso DR/VR devices are indicated to provide ventricular antitachycardia pacing ...
... or IV) in those patients who remain symptomatic despite stable, optimal medical therapy, and have a left ventricular ejection fraction less than or equal to 35% and a prolonged QRS duration. Indications for Virtuoso: Virtuoso DR/VR devices are indicated to provide ventricular antitachycardia pacing ...
Medical Risk Factors of Minnesota Mothers, 2001-2005 - June 2007 (PDF:56KB/6 pages)
... these risk factors for physicians, medical clerks, or others who routinely complete this form. Results of this analysis indicate more commonly identified risk factors and a greater prevalence of risk factors for older mothers and mothers who have had four or more previous births (parity). In additio ...
... these risk factors for physicians, medical clerks, or others who routinely complete this form. Results of this analysis indicate more commonly identified risk factors and a greater prevalence of risk factors for older mothers and mothers who have had four or more previous births (parity). In additio ...
Delivery Planning for the Fetus with Congenital Heart Disease
... Impact in Fetuses with CHD Donofrio, et al ♥ The risk of foramen ovale restriction/closure is greater in fetuses with CHD ♥ Foramen ovale restriction/closure in fetuses with CHD can result in distress in-utero or at birth ♥ Fetuses with HRHS and obligate right to left atrial shunting are more likely ...
... Impact in Fetuses with CHD Donofrio, et al ♥ The risk of foramen ovale restriction/closure is greater in fetuses with CHD ♥ Foramen ovale restriction/closure in fetuses with CHD can result in distress in-utero or at birth ♥ Fetuses with HRHS and obligate right to left atrial shunting are more likely ...
Slide Set (PDF) - Professional Heart Daily
... • If a specific secondary cause of hypertension is ...
... • If a specific secondary cause of hypertension is ...
You Have Options - Cardiac Care Network of Ontario
... year, over 60,000 Ontario patients have a diagnostic cardiac catheterization test. This test identifies if there are blockages in the coronary arteries. Based on the results of the cardiac catheterization test, options for treatment are defined. Percutaneous Coronary Intervention (PCI). A PCI (or “a ...
... year, over 60,000 Ontario patients have a diagnostic cardiac catheterization test. This test identifies if there are blockages in the coronary arteries. Based on the results of the cardiac catheterization test, options for treatment are defined. Percutaneous Coronary Intervention (PCI). A PCI (or “a ...
Isolated ventricular septal defect caused by
... occurred in 25 (86%) of 29 patients, but it was not always present immediately. The time of appearance of the precordial murmur following the accident varied considerably: in 15 the murmur was audible immediately; in the others the murmur was absent initially but appeared anywhere from 6 to 10 days ...
... occurred in 25 (86%) of 29 patients, but it was not always present immediately. The time of appearance of the precordial murmur following the accident varied considerably: in 15 the murmur was audible immediately; in the others the murmur was absent initially but appeared anywhere from 6 to 10 days ...
Pueblo Heart Study
... This Important Study Observed an Immediate and Significant Decline in Heart Attack Admissions at Pueblo’s Major Hospitals AFTER a Citywide Smoke-free Indoor Air Ordinance Went Into Effect. Past epidemiologic studies have linked breathing of secondhand tobacco smoke with acute myocardial infarction ( ...
... This Important Study Observed an Immediate and Significant Decline in Heart Attack Admissions at Pueblo’s Major Hospitals AFTER a Citywide Smoke-free Indoor Air Ordinance Went Into Effect. Past epidemiologic studies have linked breathing of secondhand tobacco smoke with acute myocardial infarction ( ...
Ch 6 Distributing Materials 2
... in the air (decreases the water concentration gradient between leaf spaces and air). Air currents increase the rate of transpiration because they reduce the humidity in the vicinity of the leaf surface by moving water vapour away from the leaf. Hairs create a layer of relatively undisturbed air over ...
... in the air (decreases the water concentration gradient between leaf spaces and air). Air currents increase the rate of transpiration because they reduce the humidity in the vicinity of the leaf surface by moving water vapour away from the leaf. Hairs create a layer of relatively undisturbed air over ...
Image quality and radiation dose of dual
... 169 West Changle Road, Xi’an 710032, China Full list of author information is available at the end of the article ...
... 169 West Changle Road, Xi’an 710032, China Full list of author information is available at the end of the article ...
Low Dose Fibrinolytic Therapy for Treating Right Heart Thrombus
... of devices like catheter or pace maker lead inside the right atrium. Free floating right heart thrombi are seen in 4-18% of patients presenting with acute massive pulmonary embolsim [1-3]. Case series report high in hospital mortality 44.7% due to sudden pulmonary embolism [4]. The overall mortality ...
... of devices like catheter or pace maker lead inside the right atrium. Free floating right heart thrombi are seen in 4-18% of patients presenting with acute massive pulmonary embolsim [1-3]. Case series report high in hospital mortality 44.7% due to sudden pulmonary embolism [4]. The overall mortality ...
Appearance of QRS fragmentation late after Mustard/ Senning repair
... significantly associated with the composite endpoint (table 3). The event-free survival was markedly worse when fQRS was present (figure 3). The median time from the detection of fQRS to a clinical event was 3.1 (IQR 0.6–6.8) years. In two patients, the ECG that demonstrated fQRS was taken 3 or 7 da ...
... significantly associated with the composite endpoint (table 3). The event-free survival was markedly worse when fQRS was present (figure 3). The median time from the detection of fQRS to a clinical event was 3.1 (IQR 0.6–6.8) years. In two patients, the ECG that demonstrated fQRS was taken 3 or 7 da ...
Heart and Circulation
... • not very efficient: movement of blood is slow and under low pressure. • in insects, the blood does not carry oxygen. There is a separate tubular system for this. • wing movement (muscles) of flying insects speeds up blood flow. ...
... • not very efficient: movement of blood is slow and under low pressure. • in insects, the blood does not carry oxygen. There is a separate tubular system for this. • wing movement (muscles) of flying insects speeds up blood flow. ...
Heart Physiology File
... in one minute • CO = heart rate (HR) x stroke volume (SV) – HR = number of beats per minute – SV = volume of blood pumped out by a ventricle with each beat ...
... in one minute • CO = heart rate (HR) x stroke volume (SV) – HR = number of beats per minute – SV = volume of blood pumped out by a ventricle with each beat ...
MAYO CLINIC HEALTH LETTER Palpitations Reliable Information for a Healthier Life
... Arrhythmias are classified by where they originate in the heart and by the speed of heart rate they cause. A fast heartbeat — meaning a resting heart rate greater than 100 beats a minute — is called tachycardia. A slow heartbeat — a resting heart rate of less than 60 beats a minute — is called brady ...
... Arrhythmias are classified by where they originate in the heart and by the speed of heart rate they cause. A fast heartbeat — meaning a resting heart rate greater than 100 beats a minute — is called tachycardia. A slow heartbeat — a resting heart rate of less than 60 beats a minute — is called brady ...
Full text (PDF file)
... A change in cardiac structure inevitably leads to a change in cardiac function, but the complex relationship between altered structure and function are not fully understood. Although structural remodeling serves important adaptive purposes, maladaptive consequences of remodeling are likely to contri ...
... A change in cardiac structure inevitably leads to a change in cardiac function, but the complex relationship between altered structure and function are not fully understood. Although structural remodeling serves important adaptive purposes, maladaptive consequences of remodeling are likely to contri ...
4 p.m. - Hormone Replacement Therapy
... the same bioidentical hormones that are FDA-approved….It's kind of unfortunate that we live in an era where this has become so widespread it's a very big business." ...
... the same bioidentical hormones that are FDA-approved….It's kind of unfortunate that we live in an era where this has become so widespread it's a very big business." ...
(AV) Block
... discernible electrical activity on the ECG monitor. Asystole is sometimes referred to as a “flat line.” Confirmation that a “flat line” is truly asystole is an important step. Ensure that asystole is not another rhythm that looks like a “flat line.” Fine VF can appear to be asystole, and a “flat lin ...
... discernible electrical activity on the ECG monitor. Asystole is sometimes referred to as a “flat line.” Confirmation that a “flat line” is truly asystole is an important step. Ensure that asystole is not another rhythm that looks like a “flat line.” Fine VF can appear to be asystole, and a “flat lin ...
Modeling of Blood Flow Velocity into the Main Artery via Left
... confine more blood in the left ventricle hence less pressure development in the system. Due to the relatively less pressure in the model with ventricle [3].The capability to observe left ventricle flow velocity pattern is quite important because changes in flow velocity may prove critical for analys ...
... confine more blood in the left ventricle hence less pressure development in the system. Due to the relatively less pressure in the model with ventricle [3].The capability to observe left ventricle flow velocity pattern is quite important because changes in flow velocity may prove critical for analys ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.