Suboptimal response to controlled ovarian stimulation in IVF / ICSI cycles
Cong Tuan Nguyen , Dariko A. Niauri , Lyailya Kh. Dzhemlikhanova , Igor Yu. Kogan , Inna O. Krikheli , Irina D. Mekina , Elena A. Lesik , Evgenia M. Komarova , Maria A. Ishchuk , Alexander M. Gzgzyan
Journal of obstetrics and women's diseases ›› 2020, Vol. 69 ›› Issue (6) : 61 -70.
Suboptimal response to controlled ovarian stimulation in IVF / ICSI cycles
Hypothesis/Aims of study. Currently, the frequency of suboptimal response (4-9 retrieved oocytes) to controlled ovarian stimulation (COS) in woman is quite high; however, its efficacy is poorly studied. The aim of this study was to evaluate the main characteristics of IVF / ICSI programs in patients with a suboptimal response to COS.
Study design, materials and methods. We performed a retrospective study of 412 IVF / ICSI cycles in women with a suboptimal response to COS, including a comparative analysis of clinical and embryological parameters, ovarian reserve and the efficacy of IVF / ICSI protocols.
Results. Clinical pregnancy rate in ovarian stimulation cycles with a suboptimal response to COS was 27.9%. The efficacy of assisted reproductive technology (ART) programs in women with uterine fibroids was significantly lower than in patients without fibroids (19.1% vs. 30.5%, p = 0.03; OR = 0.54; 95% CI: 0.31-0.95). Clinical pregnancy rate in patients with male factor infertility was significantly higher than in women with anovulation (37.1% vs. 20.9%, р = 0.005; OR = 2.24; 95% CI: 1.27-3.94) or tubal factor infertility (37.1% vs. 24.8%, р = 0.02; OR = 1.79; 95% CI: 1.09-2.94). There were significant correlations between the number of retrieved oocytes with serum anti-Müllerian hormone (AMH) concentration (r = 0.32, p < 0.001) and antral follicle count (AFC) (r = 0.38, p < 0.001). In addition, the need for follicle-stimulating hormone (FSH) preparations during COS correlated significantly with ovarian reserve parameters (AMH and AFC) (r = –0.45 and –0.44, both p < 0.001, respectively) and the age of patients (r = 0.47; p < 0.001).
Conclusion. The clinical pregnancy rate in women with a suboptimal response to COS was low. Concomitant uterine fibroids represented an additional factor of negative influence on IVF / ICSI outcomes in women with a suboptimal response to COS. The male factor of infertility in patients with a suboptimal response did not reduce the efficacy of ART programs. Ovarian reserve parameters in women with a suboptimal response correlated with the need for FSH preparations during COS and the number of retrieved oocytes.
suboptimal response / IVF / ICSI / controlled ovarian stimulation / clinical pregnancy rate
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Nguyen C., Niauri D.A., Dzhemlikhanova L.K., Kogan I.Y., Krikheli I.O., Mekina I.D., Lesik E.A., Komarova E.M., Ishchuk M.A., Gzgzyan A.M.
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