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对１４１例足月妊娠初产单胎头位胎膜早破（ＰＲＯＭ）者进行了回顾性分析，并随机抽样取同期分娩与其同等条件的未早破膜者１５０例作对照，结果显示胎膜早破组的胎头位置异常、骨盆异常、巨大儿、产程延长、难产、胎儿宫内窘迫均明显高于对照组，经统计学处理差异有非常显著性意义（Ｐ＜０．０５～０．０１）；而产褥病率两组差异无显著性（Ｐ＞０．０５）。说明胎膜早破的主要原因是胎头位置异常、骨盆异常、巨大儿等。
A total of 141 premature rupture of membranes (PROM) of full-term pregnancy were retrospectively analyzed and randomized to 150 cases of non-ruptured membranes with the same conditions of delivery at the same period. The results showed that fetal membranes Premature rupture of the fetal head position abnormalities, pelvic abnormalities, macrosomia, prolonged labor, dystocia, fetal distress were significantly higher than the control group, the difference was statistically significant (P <0.05-0. 01). However, there was no significant difference between the two groups (P> 0.05). Description of premature rupture of membranes is the main reason for abnormal fetal head position, pelvic abnormalities, such as giant children.