Optimization of in vitro fertilization programs by replacing an ovulation trigger


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Abstract

Objective. To optimize in vitro fertilization programs in patients at high risk for ovarian hyperstimulation syndrome (OHSS) through replacement of an ovulation trigger and simulation of the luteal phase. Subjects and methods. The investigation enrolled 258patients aged 20 to 39 years at high risk for OHSS. The patients were divided into three groups according to the injected ovulation trigger: 1) gonadotropin-releasing hormone (GnRH) agonist (GnRH-a) 0.2 mg (n = 91); 2) GnRH-a 0.2 mg with simultaneous injection of human chorionic gonadotropin (hCG) 1500I U(n = 82); 3) hCG 10,000 IU(n = 85). Micronizedprogesterone 600mg/day and estradiol valerate 4 mg/day were used for luteal phase support in Groups 1 and 2. In Group 1, hCG was additionally injected in a dose of 1500 IU for luteal phase support on the day of transvaginal puncture (TVP). In Group 3, micronized progesterone was administered in a dose of 600 mg/day for luteal phase support. Results. Comparison of Groups 1 and 3 revealed a statistically significant difference in the incidence of mild OHSS (< 0.001); that of Groups 1 and 2 and that of Groups 2 and 3 disclosed no statistically significant difference (p > 0.05). Thus, mild OHSS developed in 11 (12.1%) patients in the group where the trigger was replaced by GnRH agonist, in 16 (19.5%) in the double trigger (GnRH-a + hCG) group, and in 27 (31.8%) in the hCG group. Moderate OHSS developed in 7 (7.7%) patients in Group 1, in 6 (9.8%) in Group 2, and in 8 (9.4%) in Group 3; comparison of the incidence of moderate OHSS revealed no statistically significant differences in the examined groups (p > 0.05). No case of severe OHSS was recorded in the GnRH-a group. In the GnRH-a + hCG group, the incidence of severe OHSS was 1.2% (n = 1), which was statistically significantly lower than that in the hCG group [10.6% (n = 9)] (р >0.05, р <0.001, р = 0.011). The rate of conception after embryo transfer was 45.2, 42.2, and 45.6% in the GnRH-a, GnRH-a + hCG, and hCG groups, respectively (p > 0.05, ANOVA). There were no statistically significant differences in the rates of clinical pregnancy, pregnancy termination, and progressive pregnancy. Conclusion. Replacement of the ovulation trigger by GnRH-a in the patients at high risk for OHSS is effective in reducing its risk and has no negative impact on conception rates when the luteal phase is modified.

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About the authors

B. A Martazanova

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: bellamart88@mail.ru
graduate student

N. G Mishieva

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: nondoc555@mail.ru
MD, Senior researcher of 1st gynecology department

L. A Levkov

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: l_levkov@oparina4.ru
MD, PhD, Head of Department

A. M Gracheva

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: Alusha.M.Petruk@yandex.ru
graduate student

Kh. A Bogatyreva

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: Eva-90-B@yandex.ru
graduate student

S. M Eapen

I.M. Sechenov First Moscow State Medical University

Email: dr.snehaeapen@gmail.com
graduate student

V. S Lapina

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: vslapina89@Gmail.ru
graduate student

A. N Abubakirov

Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Health of Russia

Email: nondoc555@yahoo.com
PhD, Head of 1st gynecology department

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