Peterson H B, Xia Z, Hughes J M, Wilcox L S, Tylor L R, Trussell J
Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, GA 30341-3724, USA.
Am J Obstet Gynecol. 1996 Apr;174(4):1161-8; discussion 1168-70. doi: 10.1016/s0002-9378(96)70658-0.
Our purpose was to determine the risk of pregnancy after tubal sterilization for common methods of tubal occlusion.
A multicenter, prospective cohort study was conducted in U.S. medical centers. A total of 10,685 women who underwent tubal sterilization was followed up for 8 to 14 years. The risk of pregnancy was assessed by cumulative life-table probabilities and proportional hazards models.
A total of 143 sterilization failures was identified. Cumulative 10-year probabilities of pregnancy were highest after clip sterilization (36.5/1000 procedures) and lowest after unipolar coagulation (7.5/1000) and postpartum partial salpingectomy (7.5/1000). The cumulative risk of pregnancy was highest among women sterilized at a young age with bipolar coagulation (54.3/1000) and clip application (52.1/1000).
Although tubal sterilization is highly effective, the risk of sterilization failure is higher than generally reported. The risk persists for years after the procedure and varies by method of tubal occlusion and age.
我们的目的是确定常见输卵管闭塞方法进行输卵管绝育术后的妊娠风险。
在美国医疗中心进行了一项多中心前瞻性队列研究。对总共10685例行输卵管绝育术的女性进行了8至14年的随访。通过累积生命表概率和比例风险模型评估妊娠风险。
共识别出143例绝育失败。夹子绝育术后10年累积妊娠概率最高（每1000例手术中有36.5例），单极电凝术（每1000例中有7.5例）和产后部分输卵管切除术（每1000例中有7.5例）后最低。在年轻时接受双极电凝术（每1000例中有54.3例）和夹子绝育术（每1000例中有52.1例）的女性中，累积妊娠风险最高。
尽管输卵管绝育术非常有效，但绝育失败的风险高于一般报道。该风险在手术后持续数年，并因输卵管闭塞方法和年龄而异。
