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对1990年间在广东省中山市用YZ—1型银夹作输卵管绝育的对象进行了回顾性重点整群抽样调查,1580例中有9例复孕,术后第1、2年的粗累积复孕率分别为0.4和0.67/每百妇女。调查显示,该夹绝育成功率高,术后副反应轻微。Cox回归多因素生存分析显示末孕结束后≤30天手术的复杂相对危险是≥31天的14.48倍,提示在此时机手术应慎重。
A retrospective, cluster-based survey was conducted on subjects who underwent tubal sterilization with a YZ-1 silver clip in Zhongshan City, Guangdong Province in 1990. Nine of 1580 patients were re-conceived and the first and second year after the operation were extensively accumulated Pregnancy rates were 0.4 and 0.67 per 100 women respectively. Surveys show that the clip sterilization rate of success, minor side effects. Cox regression multivariate survival analysis showed that the complex relative risk of surgery less than 30 days after the end of pregnancy was 14.48 times greater than 31 days, suggesting that surgery should be carefully performed at this time.