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本文报告20年来专科门诊及住院诊治56例先天性完全性房室传导阻滞(CCAVB),初诊平均年龄4.2岁,其中2例伴室间隔缺损。56例中23例发生≥1次以上阿斯氏征,频发者16例。发作时8例为缓慢心律(<40次/分),13例为快速室速,主要为扭转型室速(Tdp),2例不详,作者指出86％发生于≤5岁,随着年龄增高而减少,QT间期延长,运动不耐受及低钾等均为促发因素。阿斯氏发作时不论缓慢或快速心率均应采用增心率药物或临时心脏起搏快速心率。9例应用埋藏式起搏器,安置后有诸多并发症。故仅推荐应用于其它方法不能控制的阿斯发作,以渡过危险期。
This article reports 56 cases of congenital total atrioventricular block (CCAVB) diagnosed in specialist outpatient and inpatient over the past 20 years. The mean age at first visit was 4.2 years. Two of them had ventricular septal defect. Among 56 cases, 23 cases had As1 sign more than or equal to one time and 16 cases had frequent occurrence. Eight episodes of episodes were bradyarrhythmias (<40 beats / min), 13 were rapid ventricular tachycardia (Tdp), and 2 were unknown. The authors noted that 86% occurred in ≤5 years of age and increased with age The reduction, prolongation of QT interval, exercise intolerance and hypokalemia are all risk factors. Asymptomatic attacks, whether slow or fast heart rate should be used to increase heart rate drugs or temporary cardiac pacing fast heart rate. 9 cases of buried pacemaker, placement, there are many complications. It is only recommended for other methods can not control the Aspen onset to cross the dangerous period.