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E-ISSN : 2148-9696
Crescent Journal of
Medical and Biological Sciences
Jan 2020, Vol 7, Issue 1
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Original Article
Effect of Estrogen Priming in Antagonist Cycles in Women With Poor Response to IVF Treatment
Alyeh Ghasemzadeh1, Roghayeh Dehghan Zadeh1, Laya Farzadi1, Mohammad Nouri1, Alireza Souri2
1Women’s Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
2Department of Epidemiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran

CJMB 2020; 7: 110–115

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Keywords : Estrogen Priming, Gonadotropins, GnRH
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Abstract

Objectives: Despite inconsistencies in existing studies, the results of some research studies indicate that treatment with estrogen priming and gonadotropin-releasing hormone (GnRH) antagonist look promising for poor-responder patients. 

Materials and Methods: The study was conducted on 2 groups of poor-responder patients under treatment with GnRH antagonist and gonadotropin. Each group had 53 patients. The treatment was performed after considering the patients’ age, the number of previously failed in-vitro fertilization (IVF), antral follicles count and mean serum level of follicular stimulating hormone (FSH3), anti-Müllerian hormone (AMH), and estradiol (E2). In the intervention group, 4 mg of estradiol valerate was administered daily from the 21st day of the cycle before IVF and continued up to the second day of the cycle. Then, stimulation was initiated with human menopausal gonadotropin (HMG) and follicle-stimulating hormone (FSH) and the GnRH antagonist was implemented on the eighth day and continued until the prescription of human chorionic gonadotropin (HCG).

Results: The average number of obtained large follicles (2.9±1.8 against 2.3±1.6), M2 oocytes (3.6±0.3 against 2.8±0.3) and embryo quality type II (1.3±0.2 against 0.9±0.1) and type III (0.7±0.1 against 0.3±0.1) in the intervention group was signifcantly higher compared to the control group (P value was respectively 0.05, 0.05, 0.05, and 0.01). The rate of successful pregnancy was higher in the intervention group (8.3%) than in the control group (6.7%). However, it was not statistically signifcant (P=0.50).

Conclusions: Estrogen priming has positive effects on GnRH antagonist cycles with an increase in the number of large follicles and better quality oocytes and embryos.

 

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