Krongrad E
Circulation. 1978 May;57(5):867-70. doi: 10.1161/01.cir.57.5.867.
Intraventricular conduction defects are common following repair of various forms of congenital heart disease. Such defects may affect adversely the long-term prognosis of patients in whom cardiac hemodynamics were adequately restored. Review of previously published studies suggests that the site of the conduction defect may be the reason for the different prognoses reported for patients from different institutions. The so-called "trifascicular block" pattern which sometimes occurs following open heart surgery is probably due to a more extensive lesion to the branching and penetrating parts of the His bundle rather than additional injury to the posterior left bundle branch fibers. Transient complete heart block in the immediate postoperative period seems to be a predictor for late development of complete heart block or sudden death at least as powerful as right bundle branch block and left anterior hemiblock.
在各种先天性心脏病修复术后，室内传导缺陷很常见。此类缺陷可能会对心脏血流动力学已充分恢复的患者的长期预后产生不利影响。对先前发表的研究进行回顾表明，传导缺陷的部位可能是不同机构报告的患者预后不同的原因。心脏直视手术后有时出现的所谓“三分支阻滞”模式，可能是由于希氏束分支和穿入部分的病变更为广泛，而非左后束支纤维受到额外损伤。术后早期出现的短暂性完全性心脏传导阻滞似乎是晚期发生完全性心脏传导阻滞或猝死的一个预测指标，其预测能力至少与右束支传导阻滞和左前半阻滞一样强。
