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Int J Gynaecol Obstet. 1979 Nov-Dec;17(3):265-7.

The history of pregnancies that occur following female sterilization.

Abstract

Data on 208 pregnancies occurring among 20,749 women following sterilization were collected by the International Fertility Research Program and the histories of these pregnancies from conception to termination were analyzed. In the laparoscopic series, the operator's failure to interrupt the tube by electrocoagulation or a tubal occlusion device was the major reason reported for sterilization failure. In the culdoscopic series, operator error or device deficiency were the major reasons for failure. About three quarters of pregnancies in this study were conceived within the first year following sterilization and were confirmed during the first trimester. The rate of ectopic pregnancy occurring in this series was higher than the rate reported for nonsterilized women and was especially high when electrocoagulation was used.

PIP:

The International Fertility Research Program collected data on 208 pregnancies occurring among 20,749 women following sterilization. The histories of these pregnancies were analyzed from conception to termination. The operator's failure to interrupt the tube by electrocoagulation or a tubal occlusion device was the major reason for sterilization failure in the laparoscopic series. Operator error or device deficiency were the causes for failure in the culdoscopic series. Three quarters of pregnancies in this study were conceived within the first year following sterilization and were confirmed during the first trimester. The rate of ectopic pregnancy occurring in this series was higher than the rate for nonsterilized women. It was especially high when electrocoagulation was used. From 1972 to August 1978, the pregnancies were reported to the Program. More than half the pregnancies were diagnosed by a test alone or a pelvic examination. In 38%, the reasons for failures were not reported. 123 of the 159 failures were terminated; the remainder were being continued at last follow-up. 15.7% of pregnancies were confirmed during the second trimester; 3.8% were diagnosed beyond the 25th week.

PMID:
42583
[Indexed for MEDLINE]
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