Short-Term Effect of Atrial Fibrillation on Atrial Contractile Function in Humans
نویسندگان
چکیده
منابع مشابه
Short-term effect of atrial fibrillation on atrial contractile function in humans.
BACKGROUND Conversion of chronic atrial fibrillation (AF) is associated with atrial stunning, but the short-term effect of a brief episode of AF on left atrial appendage (LAA) emptying velocity is unknown. The purpose of this study was to determine whether a short episode of AF affects left atrial function and whether verapamil modifies this effect. METHODS AND RESULTS The subjects of this st...
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BACKGROUND Despite a long history of use in the treatment of paroxysmal atrial fibrillation (AF), the efficacy of cardiac glycosides has not been established. If such drugs are beneficial in this condition, the general view is that the benefit must be related to their inotropic actions. METHODS AND RESULTS To assess the effects of the rapid-acting cardiac glycoside, acetylstrophanthidin (AS),...
متن کاملLeft atrial appendage anatomy and function: short term response to sustained atrial fibrillation.
OBJECTIVE To determine whether there is significant atrial or atrial appendage enlargement or functional remodelling as a result of one to two months of sustained atrial fibrillation, a duration similar to that experienced by patients undergoing warfarin anticoagulation before elective cardioversion. METHODS To test the hypothesis that left atrial and left atrial appendage enlargement develop...
متن کاملAtrial function and atrial fibrillation
s $7 295 Decreased fractional area change of left atrial appendage contributes to development of persistent atrial fibrillation in patients of lone paroxysmal atrial f ibr i l lat ion E.-J. Cho, H.-J. Youn, T.-H. Rho, H.-K. Jeon, H.-O. Jung, C.-J. Kim, J.-H. Kim, S.-J. Hong. Catholic University of Korea, Internal medicine, College of Medicine, Seoul, Korea, Republic of Background and Purpose: A...
متن کاملAtrial fibrillation begets atrial fibrillation: autonomic mechanism for atrial electrical remodeling induced by short-term rapid atrial pacing.
BACKGROUND The mechanism(s) for acute changes in electrophysiological properties of the atria during rapid pacing induced atrial fibrillation (AF) is not completely understood. We sought to evaluate the contribution of the intrinsic cardiac autonomic nervous system in acute atrial electrical remodeling and AF induced by 6-hour rapid atrial pacing. METHODS AND RESULTS Continuous rapid pacing (...
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ژورنال
عنوان ژورنال: Circulation
سال: 1999
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.99.23.3024