Human menopausal gonadotropin/human chorionic gonadotropin follicular maturation for oocyte aspiration: phase II, 1981

Fertility and Sterility
J GarciaG Wright

Abstract

Ovulation was induced in 24 cycles of normal ovulatory patients for in vitro fertilization using a modified human menopausal gonadotropin and human chorionic gonadotropin (hMG/hCG) protocol. This modification was based on experience in 31 cycles previously studied. The individual ovarian threshold response to hMG seen previously was again confirmed, and successful stimulation and oocyte retrieval depended upon the recognition of this patient's "sensitivity." A rapid serum estradiol (E2) assay, in conjunction with estimation of the patient's biologic response to the E2 levels, as measured by changes in vaginal smears and cervical mucus (biologic estrogen shift), was the key to determining the amount of hMG necessary. The biologic shift was the best indicator for discontinuation of gonadotropins in the low E2 responder group. The serum E2 levels were the best indicators for the normal and high E2 responder groups. Ultrasound was used as confirmatory evidence for satisfactory follicular development. Postmaturity of the oocyte did not occur in this series, due to compensation of excessive hMG stimulation in rapid responders by a shortening of the interval between hMG discontinuation and hCG administration, thus initiating the oocyt...Continue Reading

Citations

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