1986年1月至1989年4月我们行腹膜外层次分离剖宫产术498例,现对其手术指征、并发征分析探讨如下.临床资料一、手术指征1982年以前,全部为产程发动,产程较长,宫口扩张3cm 以上,已经破膜或疑有宫腔感染的病例行腹膜外剖宫产术.1982年后,我们放宽了手术指征,见表1. January 1986 to April 1989, we performed 498 cases of extraperitoneal cesarean section, now the indications for surgery, and the syndrome were discussed as follows.Clinical data A, surgical indications Before 1982, all for the birth process , Prolonged labor, cervix 3cm or more, have rupture of membranes or suspected intrauterine infection cases of extraperitoneal cesarean section .1982, we relaxed the indications for surgery, see Table 1.