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Treatment of clomiphene citrate-related ovarian cysts in a prospective randomized study. A single center experience.

Author(s): Altinkaya SO, Talas BB, Gungor T, Gulerman C

Affiliation(s): Department of Infertility, Dr Zekai Tahir Burak Women's Health Care Education and Research Hospital, Ankara, Turkey. altinkayaozlem@yahoo.com

Publication date & source: 2009-10, J Obstet Gynaecol Res., 35(5):940-5.

Publication type: Randomized Controlled Trial

AIM: The present study aims to compare the effectiveness of placebo, low dose and very low dose oral contraceptives (OC) in the treatment of clomiphene citrate (CC)-related ovarian cysts. METHODS: A prospective randomized placebo controlled study was undertaken at the Infertility Department of Dr. Zekai Tahir Burak Women's Health Education and Research Hospital. A total of 3250 primary infertile patients were administered CC for ovulation induction because of ovulatory dysfunction and/or unexplained infertility. One hundred and eighty-six women who were diagnosed with CC-related ovarian cysts greater than 20 mm on the third day of the following menstrual cycle, were eligible for the study. Group 1 (n = 62) was treated with very low dose OC (100 microg levonorgestrel + 20 microg ethinyl estradiol [EE]), group 2 (n = 62) with low dose OC (150 microg desogestrel + 30 microg EE) and group 3 (n = 62) with a placebo. The first control was 4 weeks later. Women with persistent cysts (n = 57) were called in 4 weeks later to continue the same treatment. RESULTS: Demographic data were similar among the groups. At the first month, the regression rates of ovarian cysts were 64.5, 61.3 and 66.1% in groups 1, 2 and 3, respectively (P = 0.849). Among the 57 women (20, 19 and 18 from groups 1, 2 and 3, respectively) with persistent cysts, the regression rates were 65.0, 63.2 and 55.6%, respectively at the second month (P = 0.821). Persistence of ovarian cysts was significantly higher in women with a longer duration of CC treatment than in women with a shorter duration (P < 0.001). CONCLUSION: Any treatment might be appropriate for patients with a CC-related ovarian cyst. However, there is no evidence to administer OC for treating CC-related ovarian cysts. Expectant management may also achieve similar success rates.

Page last updated: 2010-10-05

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