منابع مشابه
Atrial Fibrillation Atrial Fibrillation Pathophysiology Implications for Management
Atrial fibrillation (AF), the most common sustained cardiac arrhythmia, is an important contributor to population morbidity and mortality. An arrhythmia that is particularly common in the elderly, AF is growing in prevalence with the aging of the population. Our understanding of the basic mechanisms that govern AF occurrence and persistence has been increasing rapidly. This article reviews the ...
متن کاملPathophysiology and prevention of atrial fibrillation.
Atrial fibrillation (AF) is a ubiquitous yet diverse cardiac arrhythmia whose incidence increases with age; with most forms of cardiac and some pulmonary diseases; and with a number of metabolic, toxic, endocrine, or genetic abnormalities.1,2 Classification of clinical AF subtypes can be achieved on the basis of the ease by which episodes of the arrhythmia terminate as follows3: “Paroxysmal” AF...
متن کاملPathophysiology of Atrial Fibrillation - Current Concepts
Atrial fibrillation (AF) is the most common supraventricular tachycardia and its incidence increases with age. The pathophysiology of AF has been studied extensively and is a subject of continuing research. The primary pathologic change seen in AF is progressive fibrosis of the atria and hence structural remodeling, is the mainstay in many forms of AF. Dilation of the atria can be due to almost...
متن کاملAtrial fibrillation: classification, pathophysiology, mechanisms and drug treatment.
The prevalence of atrial fibrillation (AF), already the most common sustained cardiac arrhythmia, is constantly rising, even after adjusting for age and presence of structural heart disease. AF increases the risk of stroke sixfold and is associated with a twofold increase in mortality, which remains above 1.5-fold after adjusting for co-morbidity, predominantly caused by cerebrovascular events,...
متن کاملAtrioventricular Conduction in Atrial Fibrillation: Pathophysiology and Clinical Implications
The atrioventricular (AV) node is the only conduction pathway between the atria and ventricles, it is located at the base of the right atrium. The conduction through the atrioventricular node is slow to allow the atria to pump blood into the ventricles before they contract. It also acts as a backup pacemaker, in case the sinoatrial node fails and limits the number of action potentials conducted...
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ژورنال
عنوان ژورنال: Circulation
سال: 2011
ISSN: 0009-7322,1524-4539
DOI: 10.1161/circulationaha.111.019893