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Title

Comparison of pregnancy outcome after letrozole versus clomiphene treatment for mild ovarian stimulation protocol in poor responders

Year: 1393
COI: JR_IJRM-12-11_001
Language: EnglishView: 340
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Authors

Maryam Eftekhar - Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Farnaz Mohammadian - Department of Obstetrics and Gynecology, Zanjan University of Medical Sciences, Zanjan, Iran
Robab Davar - Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Soheila Pourmasumi - Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran

Abstract:

Background: Poor ovarian response to controlled ovarian stimulation is one of the most important interest points in assisted reproduction. Mild ovarian stimulationseems to be preferable to high dose of FSH regimens in women with a history of poor ovarian response in previous protocol. Clomiphene citrate and letrozole aloneor in combination with FSH have been used in mild ovarian stimulation protocol. Objective: To compare the efficacy of letrozole and clomiphene citrate for mildovarian stimulation on assisted reproductive technology outcomes in poor responders. Materials and Methods: In a randomized control study, 184 women aged between 20 and 45 years with the history of poor response to ovarian stimulation who werecandidate for ART were randomly subdivided into two groups: group I (n= 80), women who underwent the clomiphene/gonadotropin/antagonist protocol; and group II (n= 87), patients who underwent the letrozole/gonadotropin/antagonist protocol. Groups were compared regarding implantation, chemical and clinical pregnancy rates. Results: There was a significant difference in the mean endometrial thicknessbetween two groups (9.16±1.2 mm vs. 8.3±0.3 mm). The implantation rate was significantly higher in letrozole group compare to clomiphene group (7.2 vs. 6.6%,p=0.024 respectively). No significant differences were found in chemical and clinical pregnancy rate between two groups.Conclusion: In mild ovarian stimulation protocol, letrozole and clomiphene have similar value for the poor responder. The optimal treatment strategy for these patients remains debated.

Keywords:

Clomiphene , Letrozole , Mild ovarian stimulation protocol , Poor responders

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This Paper COI Code is JR_IJRM-12-11_001. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/489065/

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Eftekhar, Maryam and Mohammadian, Farnaz and Davar, Robab and Pourmasumi, Soheila,1393,Comparison of pregnancy outcome after letrozole versus clomiphene treatment for mild ovarian stimulation protocol in poor responders,https://civilica.com/doc/489065

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Type of center: علوم پزشکی
Paper count: 3,482
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