Gamete intrafallopian transfer (GIFT): an alternate method of conception in couples with unexplained infertility, endometriosis and oligo-asthenospermia.

138 treatment cycles of GIFT were carried out in couples with mainly unexplained infertility, endometriosis and male factor. The overall pregnancy rate was 24.6%, abortion 29.2%, multiple pregnancy 20.6% and ectopic pregnancy 0%. Four oocytes seem to be the optimal number of oocytes to be transferred. Patients with male factor infertility fared the worse in comparison with the other groups. Successful in-vitro fertilization of excess eggs did not correlate with a positive outcome of the GIFT procedure.