Abstract
The impact of exogenous luteinizing hormone (LH) supplementation to patients undergoing controlled ovarian stimulation with gonadotropin-releasing hormone (GnRH) antagonists on cycle outcomes is controversial. Here, we present a retrospective cohort study including cycles from December 2015 to December 2016. Totally 320 cycles were divided into two groups according to with or without exogenous LH supplementation. No significant differences regarding the number of retrieved oocytes, the number of good-quality embryos, and clinical pregnancy rate between the two groups were found. The logistic regression analysis revealed that LH supplementation was not independently associated with clinical pregnancy rate (OR = 0.577, 95% CI: 0.272–1.222, p = .58) or a biochemical pregnancy rate (OR = 0.922, 95% CI: 0.444–1.916, p = .83). When patients were divided into subgroups based on age, more retrieved oocytes (5.60 vs. 3.97, p = .04) and good-quality embryos (3.07 vs. 1.93, p = .01) were achieved in cycles with exogenous LH supplementation for 40 years and over group. We conclude that for aged women (40 years old and over), LH supplementation has a positive impact on the number of retrieved oocytes and good-quality embryos in GnRH antagonist cycles.
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