PubMed:1459268 JSONTXT 2 Projects

Prospective study of short and ultrashort regimens of gonadotropin-releasing hormone agonist in an in vitro fertilization program. OBJECTIVE: To assess the usefulness of the ultrashort regimen of gonadotropin-releasing hormone agonist (GnRH-a) in ovulation induction in an in vitro fertilization (IVF) program. DESIGN: A prospective randomized trial comparing short and ultrashort regimens of GnRH-a. SETTING: Aberdeen Assisted Reproduction Unit. PATIENTS: Forty-eight patients having IVF for the first time were randomized between the two protocols. MAIN OUTCOME MEASURES: Response to ovarian stimulation and occurrence of spontaneous luteinizing hormone (LH) surges. RESULTS: In ovulation induction, fertilization, and pregnancy rates the ultrashort regimen produces results that were no different to the short regimen but it did not always prevent an LH surge. CONCLUSION: The ultrashort regimen can be a useful alternative for ovarian stimulation of patients undergoing IVF.

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