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:: Volume 20, Issue 2 (Summer 2010) ::
MEDICAL SCIENCES 2010, 20(2): 108-112 Back to browse issues page
Comparison of efficacy of letrozole and clomiphene citrate in the treatment of infertility induced by ovulation disorder in patients with polycystic ovarian syndrome
Farinaz Seifi1 1, Abolfazl Mehdizadeh2 , Shima Alavi
Abstract:   (50641 Views)
Background: According to side effects of clomiphen citrate (cc), especially on thendometrium, it was replaced with letrozole, an aromatase inhibitor, for induction of ovulation. In this study, effects of these drugs on ovulation and fertility were compared in patients with polycystic ovarian (PCO) syndrome.
 Materials and methods: In a randomized clinical trial, women with PCO and history of infertility referred to gynecology clinic of Rasoul Akram hospital and private office between 2007 and 2008 were studied. Subjects were randomly assigned to two groups of clomiphen citrate and letrozole. In CC group, subjects were received 100 milligram per day clomiphen citrate between 3rd and 7th day of each cycle for 3 cycles. In letrozole group, women treated with letrozole 2.5 mg daily between 3 and 7 day of each for 3 cycles. Number of follicles in days of 12-16 of cycle, diameter of the greatest one, pregnancy and outcome of pregnancy were compared in two groups.
Results: 40 patients in each group were studied. Numbers of follicles, mean diameter of the greatest one were not significantly different in two groups. Pregnancy was occurred in 15 patients (37.5%) of letrozole group Vs 13 patients (32.5%) of CC group. There was no abortion in letrozole group Vs 3 abortion in CC group. Preterm labor was significantly lower in letrozole treated patients (p= 0.04).
Conclusion: This study showed that letrozole could be proper substitution of clomiphen citrate for induction of ovulation in patients with PCO and infertility.
Keywords: Clomiphen citrate, Letrozole, Polycystic ovarian syndrome, Induction of ovulation
Full-Text [PDF 509 kb]   (6452 Downloads)    
Subject: Epidemiology
Received: 2010/09/4 | Published: 2010/09/15
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Farinaz Seifi1, Abolfazl Mehdizadeh2, Shima Alavi. Comparison of efficacy of letrozole and clomiphene citrate in the treatment of infertility induced by ovulation disorder in patients with polycystic ovarian syndrome. MEDICAL SCIENCES 2010; 20 (2) :108-112
URL: http://tmuj.iautmu.ac.ir/article-1-295-en.html

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Volume 20, Issue 2 (Summer 2010) Back to browse issues page
فصلنامه علوم پزشکی دانشگاه آزاد اسلامی واحد پزشکی تهران Medical Science Journal of Islamic Azad Univesity - Tehran Medical Branch
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