Popular Links
... published confirming again this hypothesis and showed that heart attack survivors w/ EF <30% w/o any other risk stratification (ie: EP testing as had been conducted in MADIT) had a mortality benefit. ICDs have been recommended as secondary prevention in Clinical Practice Guidelines by the ACC/AHA si ...
... published confirming again this hypothesis and showed that heart attack survivors w/ EF <30% w/o any other risk stratification (ie: EP testing as had been conducted in MADIT) had a mortality benefit. ICDs have been recommended as secondary prevention in Clinical Practice Guidelines by the ACC/AHA si ...
Chapter 18 Heart
... • The period between the start of one heartbeat and the beginning of the next • Includes both contraction and relaxation ...
... • The period between the start of one heartbeat and the beginning of the next • Includes both contraction and relaxation ...
REVISION 1 (64 Marks)
... Suggest why in patients with DHF there is little or no increase in blood volume pumped out of the left ventricle with each contraction during exercise. ...
... Suggest why in patients with DHF there is little or no increase in blood volume pumped out of the left ventricle with each contraction during exercise. ...
Pericardium and external features of Heart (1)
... The transverse pericardial sinus lies anterior to the superior vena cava and posterior to the ascending aorta and pulmonary trunk. The oblique pericardial sinus lies posterior to the heart in the pericardial sac. ...
... The transverse pericardial sinus lies anterior to the superior vena cava and posterior to the ascending aorta and pulmonary trunk. The oblique pericardial sinus lies posterior to the heart in the pericardial sac. ...
EKG
... Electrical impulses generated in the SAN cause the right and left atria to contract first. Depolarization (heart muscle contraction caused by electrical stimulation) occurs nearly simultaneously in the right and left ventricles 1-2 tenths of a second after atrial depolarization. The entire sequence ...
... Electrical impulses generated in the SAN cause the right and left atria to contract first. Depolarization (heart muscle contraction caused by electrical stimulation) occurs nearly simultaneously in the right and left ventricles 1-2 tenths of a second after atrial depolarization. The entire sequence ...
Ventricular Assist Devices and Total Artificial Hearts
... biventricular and right and left ventricular devices, as well as devices that are intended to be used in the hospital setting alone and those that can be used in an outpatient setting. Percutaneous ventricular assist devices (pVADs) have been developed for short-term use in patients who require acut ...
... biventricular and right and left ventricular devices, as well as devices that are intended to be used in the hospital setting alone and those that can be used in an outpatient setting. Percutaneous ventricular assist devices (pVADs) have been developed for short-term use in patients who require acut ...
Persuasive Speech Example Two
... First, let’s examine the problems many Americans with heart failure are facing. a. According to the World Health Organization (also known as WHO) website, 20 million people worldwide are affected by heart failure with approximately 2 million new cases diagnosed each year. b. As stated earlier, of th ...
... First, let’s examine the problems many Americans with heart failure are facing. a. According to the World Health Organization (also known as WHO) website, 20 million people worldwide are affected by heart failure with approximately 2 million new cases diagnosed each year. b. As stated earlier, of th ...
Unit 10 ~ Learning Guide Name
... to the brain by the Vagus nerve (cranial nerve #10). This nerve pathway, part of the ____________________________ ________________________ (not under conscious control), has two system that affect the Heart Rate: 1. Parasympathetic System - ________________________________________. 2. Sympathetic Sy ...
... to the brain by the Vagus nerve (cranial nerve #10). This nerve pathway, part of the ____________________________ ________________________ (not under conscious control), has two system that affect the Heart Rate: 1. Parasympathetic System - ________________________________________. 2. Sympathetic Sy ...
Normal Heart Pumping: When the ventricles are in diastole they
... In some forms of diastolic heart failure, there is evidence that the function of the SR ATP-dependent calcium pump is impaired. o This defect would retard the rate of calcium uptake by the SR and reduce the rate of relaxation, leading to diastolic dysfunction. ...
... In some forms of diastolic heart failure, there is evidence that the function of the SR ATP-dependent calcium pump is impaired. o This defect would retard the rate of calcium uptake by the SR and reduce the rate of relaxation, leading to diastolic dysfunction. ...
Abstract_Rido_Maulana_INAHRS
... SCN5A mutations. The meta-analysis was performed by RevMan 5.3 (fixed-effects model) to provide a pooled estimate for relative risk (RR) with 95% confidence intervals (95% CIs). The primary outcome was the composite of VF and syncope, while the secondary outcomes were VF and syncope, individually. R ...
... SCN5A mutations. The meta-analysis was performed by RevMan 5.3 (fixed-effects model) to provide a pooled estimate for relative risk (RR) with 95% confidence intervals (95% CIs). The primary outcome was the composite of VF and syncope, while the secondary outcomes were VF and syncope, individually. R ...
Pulmonary Atresia
... There are two main types of Pulmonary Atresia, distinguished by whether or not there is also a hole in the muscle wall (ventricular septum (VS)) that separates the right and left ventricles. This hole (not present in the diagram) is known as a Ventricular Septal Defect (VSD). If a Ventricular Septal ...
... There are two main types of Pulmonary Atresia, distinguished by whether or not there is also a hole in the muscle wall (ventricular septum (VS)) that separates the right and left ventricles. This hole (not present in the diagram) is known as a Ventricular Septal Defect (VSD). If a Ventricular Septal ...
BIOL242Chap18HeartOCT2012
... • SA node depolarizes faster (80 - 100 APs/min.) than AV node (40 – 60 per minute) and so SA fires first, establishing heart rate (hence we call these the ...
... • SA node depolarizes faster (80 - 100 APs/min.) than AV node (40 – 60 per minute) and so SA fires first, establishing heart rate (hence we call these the ...
Organ preservation with the organ care system
... main groups of preservation solutions: intracellular solutions such as Bretschneider solution, University of Wisconsin (UW), EuroCollins and Stanford solution and the extracellular solutions Celsior, St. Thomas Hospital, Lyon Preservation and modified University of Wisconsin solution (2). The prefer ...
... main groups of preservation solutions: intracellular solutions such as Bretschneider solution, University of Wisconsin (UW), EuroCollins and Stanford solution and the extracellular solutions Celsior, St. Thomas Hospital, Lyon Preservation and modified University of Wisconsin solution (2). The prefer ...
Organ preservation with the organ care system
... main groups of preservation solutions: intracellular solutions such as Bretschneider solution, University of Wisconsin (UW), EuroCollins and Stanford solution and the extracellular solutions Celsior, St. Thomas Hospital, Lyon Preservation and modified University of Wisconsin solution (2). The prefer ...
... main groups of preservation solutions: intracellular solutions such as Bretschneider solution, University of Wisconsin (UW), EuroCollins and Stanford solution and the extracellular solutions Celsior, St. Thomas Hospital, Lyon Preservation and modified University of Wisconsin solution (2). The prefer ...
THE CARDIAC CYCLE
... While the ventricles continue contracting, the pressure in the ventricles (red) exceeds the pressure in the aorta and pulmonary arteries (green); the semilunar valves open, blood exits the ventricles, and the volume in the ventricles decreases rapidly (white). As more blood enters the arteries, pres ...
... While the ventricles continue contracting, the pressure in the ventricles (red) exceeds the pressure in the aorta and pulmonary arteries (green); the semilunar valves open, blood exits the ventricles, and the volume in the ventricles decreases rapidly (white). As more blood enters the arteries, pres ...
ATRIAL SYSTOLE
... While the ventricles continue contracting, the pressure in the ventricles (red) exceeds the pressure in the aorta and pulmonary arteries (green); the semilunar valves open, blood exits the ventricles, and the volume in the ventricles decreases rapidly (white). As more blood enters the arteries, pres ...
... While the ventricles continue contracting, the pressure in the ventricles (red) exceeds the pressure in the aorta and pulmonary arteries (green); the semilunar valves open, blood exits the ventricles, and the volume in the ventricles decreases rapidly (white). As more blood enters the arteries, pres ...
THE CARDIAC CYCLE
... While the ventricles continue contracting, the pressure in the ventricles (red) exceeds the pressure in the aorta and pulmonary arteries (green); the semilunar valves open, blood exits the ventricles, and the volume in the ventricles decreases rapidly (white). As more blood enters the arteries, pres ...
... While the ventricles continue contracting, the pressure in the ventricles (red) exceeds the pressure in the aorta and pulmonary arteries (green); the semilunar valves open, blood exits the ventricles, and the volume in the ventricles decreases rapidly (white). As more blood enters the arteries, pres ...
Chapter 21: Blood Vessels and Circulation
... – = Areas of partial or complete blockage of coronary circulation (usually arteries) coronary ischemia (reduced blood supply to heart) – Causes • Formation of fatty plaque in wall of vessel • Thrombus (clot) • Spasm of smooth muscle in walls of vessel ...
... – = Areas of partial or complete blockage of coronary circulation (usually arteries) coronary ischemia (reduced blood supply to heart) – Causes • Formation of fatty plaque in wall of vessel • Thrombus (clot) • Spasm of smooth muscle in walls of vessel ...
SHOCK: A CLINICAL SYNDROME
... Caused by decreased cardiac output that results from impaired heart function. Impaired heart function can be classified as systolic or diastolic. ...
... Caused by decreased cardiac output that results from impaired heart function. Impaired heart function can be classified as systolic or diastolic. ...
C-reactive protein, high blood pressure linked
... and has already been linked to an increased risk of heart attack and stroke. The research, conducted by the hospital's Center for Cardiovascular Disease and Prevention, provides evidence for the first time that high blood pressure, also known as hypertension, may be an inflammatory disease. If that' ...
... and has already been linked to an increased risk of heart attack and stroke. The research, conducted by the hospital's Center for Cardiovascular Disease and Prevention, provides evidence for the first time that high blood pressure, also known as hypertension, may be an inflammatory disease. If that' ...
Cardiac resynchronization therapy for pediatric heart failure
... (⬎120 ms) despite optimal medical therapy. The pediatric heart failure population is a heterogeneous population comprising cardiomyopathy and congenital heart disease patients.1 The growing number of patients surviving surgical interventions has contributed to this heterogeneity. Current guidelines ...
... (⬎120 ms) despite optimal medical therapy. The pediatric heart failure population is a heterogeneous population comprising cardiomyopathy and congenital heart disease patients.1 The growing number of patients surviving surgical interventions has contributed to this heterogeneity. Current guidelines ...
Restrictive Cardiomyopathy
... • Normal systolic contraction with a rapid but illsustained ventricular filling seen on pulsed-wave Doppler (E-wave) and with little or no late ventricular filling (A-wave). ...
... • Normal systolic contraction with a rapid but illsustained ventricular filling seen on pulsed-wave Doppler (E-wave) and with little or no late ventricular filling (A-wave). ...
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.