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输卵管绝育术是一种有效的计划生育措施。近年来世界各国妇女进行输卵管绝育术者日益增多,绝育失败而发生的宫外孕也明显增多。Breen在1970年报导的654例宫外孕中,仅4例(占0．6%)有输卵管扎结史。Wolf报导1970—1977年的721例宫外孕有绝育史者共33例,在1970—1973年328例宫外孕中有的育史者仅9例(占1．2%),而1974—197T年393例宫外孕中,有绝育史者29例(占7．4%)。文献报导关于宫外孕患者有绝育史者占0．6—12%。绝育后复孕的妇女中宫外孕发生率差异很大,自0至51%不
Tubal sterilization is an effective family planning measure. In recent years, women in all countries in the world have been increasing the number of tubal sterilization, and the number of ectopic pregnancies that have failed sterilization has also increased significantly. Of the 654 ectopic pregnancies reported by Breen in 1970, only 4 (0.6%) had history of tubal ligation. Wolf reported 721 cases with a history of sterilization of 721 ectopic pregnancies from 1970 to 1977, with only 9 cases (1.2%) of 328 cases of ectopic pregnancy in 1970-1973, while 393 cases of ectopic pregnancy Among them, there are 29 cases of sterilization history (7.4%). Literature reported that patients with ectopic pregnancy have a history of sterilization accounted for 0.6-12%. The incidence of ectopic pregnancy among women who relapse after sterilization varies widely, ranging from 0 to 51%