Ovarian stimulation for in vitro fertilization using pure follicle-stimulating hormone with and without gonadotropin-releasing hormone agonist in high-responder patients |
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Authors: | Michael C. Edelstein Robert G. Brzyski Georgeanna S. Jones Sergio Oehninger Susan M. Sieg Suheil J. Muasher |
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Affiliation: | (1) Department of Obstetrics and Gynecology, Eastern Virginia Medical School, The Jones Institute for Reproductive Medicine, 825 Fairfax Avenue, Hofheimer Hall-6th Floor, 23507 Norfolk, Virginia |
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Abstract: | There is a distinct pattern of response to gonadotropin stimulation in some patients marked by high peak estradiol (E2) levels, multifollicular ovarians response, and elevated basal luteinizing hormone (LH)/follicle-stimulating hormone (FSH) ratios. We reviewed the stimulation profiles of five such high-responder patients who failed to conceive during in vitro fertilization with ovarian stimulation using pure FSH. All patients had baseline LH/FSH >1.5 and peak E2>800 pg/ml. One cycle was canceled prior to hCG administration because of marked ovarian response (E2>2500 pg/ml, multiple small follicles). In a subsequent cycle, all patients were pretreated with the gonadotropin releasing-hormone agonist (GnRHa) leuprolide acetete for 10–14 days prior to initiation of FSH for ovarian stimulation. Leuprolide was continued until the day of hCG administration. During cycles using GnRHa, there was a statistically significant decrease (P <0.05) in serum FSH on day 3 (<5 vs 8.3 mIU/ml), serum E2 on day 3 (14.6 vs 34.6 pg/ml), and peak serum E2 (1197.6 vs 1923.0 pg/ml). Patients during cycles with GnRHa had a greater number of preovulatory (8.6 vs 3.0) and total (12.4 vs 6.0) oocytes retrieved (P<0.05). The fertilization rate of preovulatory oocytes was also higher during cycles using GnRHa (83 vs 64%). Two pregnancies occurred in the cycles pretreated with GnRHa. These preliminary data indicate that in high-responder patients, a combination of GnRHa and pure FSH results in lower E2 levels during the stimulation cycle and a greater number of total and mature oocytes retrieved and fertilized. |
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Keywords: | human in vitro fertilization follicle-stimulating hormone gonadotropin-releasing hormone agonist ovarian stimulation |
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