Physical Activity and Exercise Recommendations for
... Americans; a growing epidemic of diabetes, obesity, and physical inactivity among the general population; and a greater prevalence of heart failure patients.3 When considered independently from other cardiovascular diseases, stroke continues to be the third leading cause of death in the United State ...
... Americans; a growing epidemic of diabetes, obesity, and physical inactivity among the general population; and a greater prevalence of heart failure patients.3 When considered independently from other cardiovascular diseases, stroke continues to be the third leading cause of death in the United State ...
8 Heart Murmurs Part II
... In aortic regurgitation, often the regurgitant jet is directed toward the anterior mitral leaflet. In fact, the anterior mitral leaflet may be shown to exhibit some fine fluttering in diastole because of this jet hitting it. This can be seen particularly well on the M-mode of the echocardiogram. Whe ...
... In aortic regurgitation, often the regurgitant jet is directed toward the anterior mitral leaflet. In fact, the anterior mitral leaflet may be shown to exhibit some fine fluttering in diastole because of this jet hitting it. This can be seen particularly well on the M-mode of the echocardiogram. Whe ...
Recommendations for Cardiac Chamber Quantification by
... evolving, with two major developments being real-time threedimensional (3D) echocardiography (3DE) and myocardial deformation imaging. The goal of this document is to provide an update to the previously published guidelines, as well as recommendations and reference values, while eliminating the mino ...
... evolving, with two major developments being real-time threedimensional (3D) echocardiography (3DE) and myocardial deformation imaging. The goal of this document is to provide an update to the previously published guidelines, as well as recommendations and reference values, while eliminating the mino ...
and the Stroke Council
... Americans; a growing epidemic of diabetes, obesity, and physical inactivity among the general population; and a greater prevalence of heart failure patients.3 When considered independently from other cardiovascular diseases, stroke continues to be the third leading cause of death in the United State ...
... Americans; a growing epidemic of diabetes, obesity, and physical inactivity among the general population; and a greater prevalence of heart failure patients.3 When considered independently from other cardiovascular diseases, stroke continues to be the third leading cause of death in the United State ...
ESC Guidelines for cardiac pacing and cardiac resynchronization
... heart as closely as possible and to satisfy the patient’s needs while minimizing side effects. In addition, increased device longevity and the elimination of major and minor complications resulting from treatment have also been the constant aims of both manufacturers and physicians. During the last ...
... heart as closely as possible and to satisfy the patient’s needs while minimizing side effects. In addition, increased device longevity and the elimination of major and minor complications resulting from treatment have also been the constant aims of both manufacturers and physicians. During the last ...
Impair Efferent Sympathetic Responsiveness
... applied directly to the heart might affect the function of these autonomic nerves. Methods and Results. Low- (<1 J), medium- (6 to 16 J), or high- (30 to 35 J) energy truncated monophasic exponential shocks, synchronized to the R wave during sinus rhythm, were delivered over implantable patches sutu ...
... applied directly to the heart might affect the function of these autonomic nerves. Methods and Results. Low- (<1 J), medium- (6 to 16 J), or high- (30 to 35 J) energy truncated monophasic exponential shocks, synchronized to the R wave during sinus rhythm, were delivered over implantable patches sutu ...
Coronary flow reserve as a physiologic measure of stenosis severity
... Although the potential effects of changing physiologic conditions on absolute maximal flow have been recognized in principle (25,26), their effects on flow reserve for assessing stenosis severity are complex and have not been previously described experimentally. Accordingly, the purpose of this stud ...
... Although the potential effects of changing physiologic conditions on absolute maximal flow have been recognized in principle (25,26), their effects on flow reserve for assessing stenosis severity are complex and have not been previously described experimentally. Accordingly, the purpose of this stud ...
The Heart
... The Conducting System The Cardiac Cycle Begins with action potential at SA node Transmitted through conducting system Produces action potentials in cardiac muscle cells (contractile cells) ...
... The Conducting System The Cardiac Cycle Begins with action potential at SA node Transmitted through conducting system Produces action potentials in cardiac muscle cells (contractile cells) ...
The circadian clock within the heart: potential influence - AJP
... Circadian clocks can be defined as a set of proteins that generate self-sustained transcriptional positive and negative feedback loops with a free-running period of 24 h (32, 34, 49, 50). These circadian clocks are intrinsic to the cell, persisting when tissues and cells are isolated and cultured in ...
... Circadian clocks can be defined as a set of proteins that generate self-sustained transcriptional positive and negative feedback loops with a free-running period of 24 h (32, 34, 49, 50). These circadian clocks are intrinsic to the cell, persisting when tissues and cells are isolated and cultured in ...
The Norwegian athletes` heart Cardiac screening of 595
... in the USA, arrhythmogenic right ventricular cardiomyopathy in Italy, but what causes the highest risk in the Nordic countries is unknown (4;5). Some of the CV risk factors can be detected during screening and successfully treated, while others will lead to recommendations for restricted activity to ...
... in the USA, arrhythmogenic right ventricular cardiomyopathy in Italy, but what causes the highest risk in the Nordic countries is unknown (4;5). Some of the CV risk factors can be detected during screening and successfully treated, while others will lead to recommendations for restricted activity to ...
The University of Birmingham Na+/Ca2+ exchange and Na+/K+
... the University of California Davis Cardiovascular Symposium 2014: Systems approach to understanding cardiac excitation–contraction coupling and arrhythmias: Na+ channel and Na+ transport. The goal of the symposium was to bring together experts in the field to discuss points of consensus and controve ...
... the University of California Davis Cardiovascular Symposium 2014: Systems approach to understanding cardiac excitation–contraction coupling and arrhythmias: Na+ channel and Na+ transport. The goal of the symposium was to bring together experts in the field to discuss points of consensus and controve ...
ACC/AAP/AHA/ASE/HRS/SCAI/SCCT/SCMR/SOPE 2014
... cardiovascular imaging and procedures for selected patient indications. AUC publications reflect an ongoing effort by the ACC to critically and systematically create, review, and categorize clinical situations where diagnostic tests and procedures are utilized by physicians caring for patients with k ...
... cardiovascular imaging and procedures for selected patient indications. AUC publications reflect an ongoing effort by the ACC to critically and systematically create, review, and categorize clinical situations where diagnostic tests and procedures are utilized by physicians caring for patients with k ...
CPR – Cardiopulmonary Resuscitation
... The ABC protocol is recommended for only a few specific instances, including for resuscitation of newborns because arrests in the newborn are almost always asphyxial. Unlike with sudden cardiac arrest, when the arrest is precipitated by respiratory arrest and suffocation, the level of oxygen in the ...
... The ABC protocol is recommended for only a few specific instances, including for resuscitation of newborns because arrests in the newborn are almost always asphyxial. Unlike with sudden cardiac arrest, when the arrest is precipitated by respiratory arrest and suffocation, the level of oxygen in the ...
Left atrial function: pathophysiology, echocardiographic assessment
... maintain an optimal stroke volume in normal and diseased hearts, is important for interpreting data derived from quantification of LA function. During LV systole and isovolumic relaxation, the LA functions as a reservoir, receiving blood from the pulmonary veins and storing energy in the form of pres ...
... maintain an optimal stroke volume in normal and diseased hearts, is important for interpreting data derived from quantification of LA function. During LV systole and isovolumic relaxation, the LA functions as a reservoir, receiving blood from the pulmonary veins and storing energy in the form of pres ...
Temporary Pacemakers
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
Developing a global fluid-structure interaction
... of circulatory system deaths in Canada and high income countries are due to diseases of the aortic valve, coronary arteries and the blood vessels supplying the brain, greater attention should be put on the function of the aortic root and its adjacent structures. The decline in the mortality rate ass ...
... of circulatory system deaths in Canada and high income countries are due to diseases of the aortic valve, coronary arteries and the blood vessels supplying the brain, greater attention should be put on the function of the aortic root and its adjacent structures. The decline in the mortality rate ass ...
Vilniaus Universitetas
... conduction system remains completely vague in the majority of cases of congenital heart defects. Death, induced by established arrhythmias, may remain inexplicable by morphological study, or apparent pathology may be found in the heart of a patient who has never displayed clinical evidence of abnorm ...
... conduction system remains completely vague in the majority of cases of congenital heart defects. Death, induced by established arrhythmias, may remain inexplicable by morphological study, or apparent pathology may be found in the heart of a patient who has never displayed clinical evidence of abnorm ...
Cardiac - JRC-DMS
... Section I: Anatomy and Physiology of the Heart................................................................................. 3 Section II: Basic Embryology ................................................................................................................ 8 Section III: The Echocardi ...
... Section I: Anatomy and Physiology of the Heart................................................................................. 3 Section II: Basic Embryology ................................................................................................................ 8 Section III: The Echocardi ...
ACC/AHA/HRS 2008 Guidelines for Device-Based Therapy of Cardiac Rhythm Abnormalities
... Experts in the subject under consideration have been selected from both organizations to examine subject-specific data and write guidelines. The process includes additional representatives from other medical practitioner and specialty groups when appropriate. Writing committees are specifically char ...
... Experts in the subject under consideration have been selected from both organizations to examine subject-specific data and write guidelines. The process includes additional representatives from other medical practitioner and specialty groups when appropriate. Writing committees are specifically char ...
the PDF - Heart Rhythm Society
... Experts in the subject under consideration have been selected from both organizations to examine subject-specific data and write guidelines. The process includes additional representatives from other medical practitioner and specialty groups when appropriate. Writing committees are specifically char ...
... Experts in the subject under consideration have been selected from both organizations to examine subject-specific data and write guidelines. The process includes additional representatives from other medical practitioner and specialty groups when appropriate. Writing committees are specifically char ...
Using Vectorcardiography In Cardiac Resynchronization Therapy
... these Purkinje fibers is about 5 times higher than transmission through the heart muscle Figure 1 The cardiac rhytmical excitation system itself, the conduction system causes the (Adapted from Textbook of Medical Physiology Eleventh Edition, Guyton and Hall, Chapter 10) electrical impulse to arrive ...
... these Purkinje fibers is about 5 times higher than transmission through the heart muscle Figure 1 The cardiac rhytmical excitation system itself, the conduction system causes the (Adapted from Textbook of Medical Physiology Eleventh Edition, Guyton and Hall, Chapter 10) electrical impulse to arrive ...
Chapter 96 - Extras Springer
... right bundle and retrograde invasion into the left bundle branch. This makes the left bundle branch refractory when the next supraventricular impulse passes through the AV node. The impulse is conducted down the right bundle branch and then in a retrograde direction again up the left bundle branch. ...
... right bundle and retrograde invasion into the left bundle branch. This makes the left bundle branch refractory when the next supraventricular impulse passes through the AV node. The impulse is conducted down the right bundle branch and then in a retrograde direction again up the left bundle branch. ...
Nursing 259 - University of Hawaii
... node so that the atria can contract to increase ventricular filling and cardiac output) Decreased cardiac output ...
... node so that the atria can contract to increase ventricular filling and cardiac output) Decreased cardiac output ...
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.