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Effects of pioglitazone on ovarian stromal blood flow, ovarian stimulation, and in vitro fertilization outcome in patients with polycystic ovary syndrome.

Author(s): Kim CH, Jeon GH, Kim SR, Kim SH, Chae HD, Kang BM

Affiliation(s): Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, South Korea. chnkim@amc.seoul.kr

Publication date & source: 2010-06, Fertil Steril., 94(1):236-41. Epub 2009 Mar 26.

Publication type: Comparative Study; Randomized Controlled Trial

OBJECTIVE: To investigate the effects of pioglitazone on ovarian stimulation, in vitro fertilization (IVF) outcome, and intraovarian stromal blood flow in patients with polycystic ovary syndrome (PCOS). DESIGN: Prospective, randomized, controlled trial. SETTING: University-affiliated infertility clinic. PATIENT(S): Sixty infertile patients with PCOS resistant to clomiphene citrate. INTERVENTION(S): An IVF protocol involving use of a gonadotropin-releasing hormone (GnRH) antagonist and oral contraceptive pretreatment. Patients were randomized into two groups: pioglitazone (30 mg daily) in the study group or placebo in the control group, commenced on the day on which oral contraceptive intake began. MAIN OUTCOME MEASURE(S): Ovarian stimulation, IVF outcome, and resistance index of the intraovarian stromal artery. RESULT(S): The resistance index value on the day of human chorionic gonadotropin (hCG) injection in the study group was statistically significantly higher in the study group than in controls. The serum estradiol level and number of retrieved oocytes were statistically significantly lower in women treated with pioglitazone. However, the number of mature oocytes and fertilized oocytes, and the clinical pregnancy rate were similar in both groups. CONCLUSION(S): Pioglitazone therapy reduced intraovarian stromal blood flow and might be beneficial in improving both the response to ovarian stimulation and IVF outcome in PCOS patients. Copyright (c) 2010 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

Page last updated: 2010-10-05

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