title: Results of the in vitro fertilization programme at Tygerberg Hospital, phases II and III.
abstract: Phases II and III of the human in vitro fertilization programme at Tygerberg Hospital are presented. In phase II, 42 laparoscopies were performed and oocytes were obtained from 76% of the follicles aspirated, but with a fertilization rate of only 37%. The viable pregnancy rate per embryo transfer was 4%. Important changes took place in the programme, which led to a fertilization rate of 77% in phase III. Of the 78 patients subjected to laparoscopy, 65 (83%) reached the embryo transfer stage, resulting in a clinical pregnancy rate per embryo transfer of 23%, and with a 19% pregnancy rate per laparoscopy. The changes, methods and results of phases II and III are discussed.
mesh_terms: D004624:Embryo Transfer / Q000295:instrumentation; D005069:Evaluation Studies as Topic; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods; D006801:Humans; D011247:Pregnancy; D013019:South Africa