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atrial fibrillation is the most prevalent permanent arrhythmia. it may be associated with other cardiac pathologies which need surgical treatment. various types of surgery including the traditional cut-sew operations and operations using different energy sources are currently in use. in comparison with medical treatment, surgery is safe, effective, and has reliable results.

To test the hypothesis that atrial enlargement can develop as a consequence of atrial fibrillation, left and right atrial dimensions were measured echocardiographically at two different time points in patients with atrial fibrillation. Patients were selected who initially had normal atrial sizes and who had no evidence of significant structural or functional cardiac abnormalities other than atr...

background rheumatismal mitral stenosis is less common today than it was several decades ago, but it is a common cause of mitral stenosis (ms) in the developing world. mitral valve stenosis symptoms include fatigue, palpitations, and shortness of breath especially with exertion. objectives the purpose of this prospective study was to determine the incidence of left atrial (la) thrombus and the ...

BACKGROUND The purpose of this study was to assess simultaneous right and left atrial pacing as prophylaxis for postoperative atrial fibrillation. METHODS AND RESULTS In a double-blind, randomized fashion, 118 patients who underwent open heart surgery were assigned to right atrial pacing at 45 bpm (RA-AAI; n=39), right atrial triggered pacing at a rate of >/=85 bpm (RA-AAT; n=38), or simultan...

BACKGROUND Atrial fibrillation is a relatively common arrhythmia often seen in patients with permanent pacemakers. In this study we aimed to assess the incidence of atrial fibrillation in patients whose pacemakers were programmed to pace in the right ventricle (VVI) and compared it with patients whose pacemakers were programmed in non-VVI mode(i.e. AAI or DDD). MATERIAL AND METHODS Records of...

BACKGROUND It recently has been demonstrated that during atrial fibrillation, a short and variable excitable gap exists, allowing regional control of atrial fibrillation by local stimulation. In the present study, we visualized the process of excitation during regional entrainment of atrial fibrillation by rapid pacing. METHODS AND RESULTS In six open-chest dogs, the excitation of the left at...

BACKGROUND Mitral valve pathology is frequently associated with atrial dilation and fibrillation. Mitral surgery allows immediate surgical atrial remodeling, and in those cases in which sinus rhythm is achieved, it is followed by late remodeling. The aim of this study was to investigate the process of postoperative atrial remodeling in patients with permanent atrial fibrillation who undergo mit...

Abbreviations: ACUTE 5 Assessment of Cardioversion Using Transesophageal Echocardiography; AF 5 atrial fibrillation; AFASAK 5 Atrial Fibrillation Aspirin and Anticoagulation; AFI 5 Atrial Fibrillation Investigators; BAATAF 5 Boston Area Anticoagulation Trial for Atrial Fibrillation; CAFA 5 Canadian Atrial Fibrillation Anticoagulation; CI 5 confidence interval; DC 5 direct current; EAFT 5 Europe...