The treatment of normospermic infertility by gamete intrafallopian transfer (GIFT)

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Abstract
Summary. Gamete intrafallopian transfer (GIFT) was applied in 207 treatment cycles in 73 couples. The pregnancy rate in cycles with only one (2/21, 9·5%) or two (2/29, 6·9%) oocytes transferred was significantly less than that in which four oocytes (36/116, 31·0%) were replaced. The collection of more than four oocytes did not influence the pregnancy rate in that treatment cycle. The overall pregnancy rate was 24·2% (50 of 207) and was similar in the four infertility groups studied (non‐occlusive tubal disorders, endometriosis, cervical factor and unexplained infertility) with 28 (56%) of the pregnancies delivered at 20 weeks. The pregnancy wastage included 4 (8%) ectopic pregnancies and 3 (6%) late pregnancy losses. The 12 multiple pregnancies occurred following the transfer of three and four oocytes.