心房颤动伴长RR间期的食管电生理研究

Esophagus electrophysiological test in atrial fibrillation associated with long RR interval

目的提高对心房颤动伴长RR间期的认识及诊断水平。方法回顾性分析我院22例心房颤动伴长RR间期患者的临床资料。结果19例长RR间期发生于夜间或睡眠时，患者无明显症状；3例伴有头晕、一过性黑朦、晕厥的患者均发生在白天活动后。电复律后食管电生理检查，19例房室结功能正常，1例诊断为病态窦房结综合征，2例诊断为高度房室传导阻滞，3例患者安装永久起搏器。结论心房颤动伴长RR间期的机制较复杂，动态心电图和症状结合有助于判断是否存在病理性房室侍导阻滞或病态窭库结综合征．

Objective To improve awareness and diagnostic level of atrial fibrillation associated with long RR interval. Methods A clinical data of 22 cases of atrial fibrillation associated with long RR interval were analyzed retrospectively. Results Ninteen cases occurred in night or sleep without obvious symptom, 3 cases all occurred after a day of activity accompanied by dizzyamaurosis fugax and swoon. Si- noatrial node and atrioventricular node function of 19 cases were normal after electrical conversion in esoph- agus electrophysiological test. One case was diagnosed sick sinus syndrome and 2 cases were diagnosed high grade A -V block, these 3 cases all received pacemaker implantation. Conclusions The mechanism of atrial fibrillation associated with long RR interval is complex whether sick sinus syndrome existing or pathological atrioventricular block are allowed to determine by hoher combined symptom.