Rapid determination of the luteinizing hormone for optimal timing of oocyte recovery.

Accurate prediction of ovulation is absolutely necessary to recover mature oocytes for in vitro fertilization. We have modified a commercially available LH-RIA Kit for blood and urine measurement and used the HI-Gonavis Kit for monitoring the present LH level. Post-menstruation (11th-16th day) laparoscopy or laparotomy was performed to inspect the follicle state and the oocyte quality, respectively. The precise time for harvesting oocytes after the beginning of LH increase is not known. Varying data of other research groups are discussed and some problems are described.