Cumulative pregnancy rate from one gamete intra-Fallopian transfer (GIFT) cycle with cryopreservation of embryos: a practical mathematical calculation

摘要: We evaluated the cumulative pregnancy rate from one gamete intra-Fallopian transfer (GIFT) cycle plus subsequent cycles in which embryos cryopreserved at time of original GIFT were transferred. All patients who had their first our centre between January, 1989 and March, 1991 included. Ovarian stimulation was accomplished with leuprolide acetate (luteal phase protocol) a combination follicle stimulating hormone human menopausal gonadotrophin. performed three to five oocytes. Excess oocytes inseminated good quality 2- 4-cell stage 1-2 propanediol. When did not result pregnancy, uterine carried out unstimulated cycles. A total 97 46 pregnancies achieved (47.4%). 51 (52.5%) frozen; these, 21 non-pregnant group (41.1%) 30 pregnant (65.2%) (P < 0.05). Up now, 22 them have undergone frozen-thawed embryo cycle, two pregnancy. Based on these data, having could theoretically expect 52.2%.