“MEDICAL OOPHORECTOMY” USING A LONG-ACTING GNRH AGONIST-A POSSIBLE NEW APPROACH TO THE TREATMENT OF ENDOMETRIOSIS.

Abstract
Five women with endometriosis were qiven a daily dose of a potent lonq-actinq GnRH aqonist, D-Trp6-Pro9-Net-LHRH (GnRH-A) for 28 days in an attempt to suppress ovarian estrogen secretion. The mean level of estradiol (E2) during sampling over 24 hours decreased (P<0.01) from 62 ±11 to 10 ± 1 pg/ml at the end of treatment. Mean concentrations of androstenedione, testosterone, estrone and E2 on day 28 of therapy were similar to those measured in oophorectomized women. The level of FSH was decreased (P<0.001) during GnRH-a, whereas that of LH was significantly (P<0.001) increased, suggesting differing intracellular control mechanisms for release of the two gonadotropins. Desensitization of the pituitary was demonstrated at the end of treatment by a complete lack of acute response of FSH or LH to the daily dose of GnRH-a. “Medical ooohorectomy” provides a new approach to the treatment of endometriosis.

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