体外循环心脏直视手术中再次转机原因分析

Analysis of the Causes of Recirculation During Open Heart Surgery

心脏直视手术中可因心肌收缩功能恢复不全,心脏畸形矫治不满意,大出血,完全性房室传导阻滞或其他意外性原因在心肺转流终止后,需要再次转机延长体外循环时间。本文对62例病人术中再转机的原因和结果进行了分析。作者认为出现上述情况时适当延长转机时间有利于手术成功。

In a series of 1337 cases of open heart surgery operated in our hospital from January 1985 to June 1991, 62 patients had recirculation of cardiopulmonary bypass during operation. The most common causes of recirculation are: incomplete return of myocardial contractility (37 cases); unsatisfactory correction of cardiac anomalies (10 cases); massive hemorrhage (5 cases); reversible or irreversible comlete atrioventricular block (5 cases), and others (5 cases). It was believed that the lengthening of the recirculation time was neccessary in the aforementioned situations.