Preoperative secundum atrial septal defect with coexisting sinus node and atrioventricular node dysfunction.
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چکیده
منابع مشابه
Preoperative secundum atrial septal defect with coexisting sinus node and atrioventricular node dysfunction.
Sinus node dysfunction in patients after repair of the secundum atrial septal defect has been ascribed to surgical damage. We studied 15 consecutive patients with secundum atrial septal defect before operative intervention. Noninvasive testing included 34-hour electrocardiographic monitoring and a standard 13-lead ECG. Intracardiac electrophysiologic techniques included corrected sinus node rec...
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A 20-year-old woman presented for evaluation of palpitations and one episode of near syncope after exertion. Her past medical history was remarkable only for a diagnosis of exercise-induced asthma. She was involved in competitive sports at her University, participating on the track team. She denied any chest discomfort, dyspnea at rest, or perceived exercise limitation. She had never had lower ...
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The atrioventricular (A-V) conduction time in patients with secundum ASD who had left-toright shunts of 40-65% of their pulmonary flow was evaluated utilizing intracardiac electrograms. The A-V conduction time was divided into three components: (1) P-A interval, from the onset of the P wave to the time of excitation of muscle in the vicinity of the A-V node, (2) A-H interval, from the time of e...
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Abnormal atrial refractoriness was examined as a cause of atrial fibrillation/flutter (AFF) in patients with bradycardia. Refractory periods at three disparate right atrial sites were compared in 17 patients with sinus node dysfunction (SND) and 16 controls. Atrial pacing shortened refractory periods, but failed to decrease dispersion of refractoriness significantly. During sinus rhythm, durati...
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ژورنال
عنوان ژورنال: Circulation
سال: 1982
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.65.5.976