目的：探讨女性生殖道瘘的病因及预防措施。方法：回顾性分析我院妇产科2000年1月至2005年12月收治入院的57例女性生殖道瘘病例的病因。结果：产伤和妇科手术占女性生殖道瘘病因的前两位，分别占56.1%（32/57）和33.3%（19/57）。结论：产伤和妇科手术是引起女性生殖道瘘的主要原因。加强围产期保健、积极处理产科合并症以及提高妇科手术技术是降低女性生殖道瘘发生率的关键因素。
OBJECTIVE Using electrophysiological method to evaluate the severity of incomplete obstetric paralysis brachial plexus injuries, and establish an electrophysiological criteria for selection of operative procedure in the treatment of cases of late stage. METHODS Neurolysis was performed in 16 patients, and during the operation, the neuroma at the upper trunk was discovered. The electrophysiological study was carried out before and during operation to evaluate the conducting function of neuroma. In the follow-up the operative result was analysed by Mallet test. RESULTS The preoperative study showed that the compound muscular active potential (CMAP) amplitude of supraspinatus deltoid and biceps were decreased more than 60% in comparison with that of the healthy side. After external neurolysis of the neuroma, by stimulation of the proximal and distal ends of the neuroma the average decrease of CMAP amplitude of the above three muscles was 37.45% +/- 20.97%, 47.85% +/- 26.23%, 47.05% +/- 21.23%, respectively and no significant improvement was observed in the shoulder and elbow function in all of the 16 cases. CONCLUSION When the preoperative electrophysiological study found that the CMAP amplitude decreased more than 60% in comparison with that of the healthy side, transposition of nerve or nerve grafting was indicated.