Pregnancy after tubal occlusion. A 5-year study

During the 5-year period 1976--1980 9 430 patients underwent tubal occlusion at Groote Schuur Hospital, Cape Town. Of these patients 24, or 2.5/1 000, became pregnant after the procedure. An analysis of the pregnancy rate for each method of tubal occlusion is reported. Bilateral tubal occlusion by laparotomy or falope rings has flow failure rate; cauterization has not.