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  • Title: Influence of the frequency of gonadotropin-releasing hormone (GnRH) administration on ovulatory responses in women with anovulation.
    Author: Bringer J, Hedon B, Jaffiol C, Nicolau S, Gibert F, Cristol P, Orsetti A, Viala JL, Mirouze J.
    Journal: Fertil Steril; 1985 Jul; 44(1):42-8. PubMed ID: 3891425.
    Abstract:
    In attempt to optimize gonadotropin-releasing hormone (GnRH) treatment of anovulation, we compared the effect of intravenous GnRH administration at three pulse intervals (PI) during 63 cycles in 30 anovulatory patients who had: (1) amenorrhea secondary to anorexia nervosa (group I: 10 patients, 21 cycles); (2) unexplained anovulation with normal to high luteinizing hormone plasma levels (group II: 12 patients, 24 cycles); and (3) polycystic ovarian disease (PCOD) (group III: 8 patients, 18 cycles). Ovulation was achieved more frequently in group I (85%) than in group II (41%) or in group III (50%). In both groups I and II, the frequency of ovulatory responses was not different with the PI used, and 6 of the 17 women treated for infertility conceived; 3 with 90-minute PIs, 2 with 64-minute PIs, and 1 with 128-minute PIs. In women with PCOD, seven of the nine ovulatory responses and three pregnancies were obtained with 128-minute PIs. The overweight women with PCOD did not respond reliably to GnRH at the doses used, i.e., 4 to 15 micrograms per pulse. In all groups, the urinary estrone and estradiol preovulatory peak, duration of luteal phase, progesterone levels, and preovulatory follicle diameter were unrelated to the frequency of GnRH administration.
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