#314 : Comparison of Dual-Trigger and Human Chorionic Gonadotropin-Only Trigger Among Diminished Ovarian Reserve Who Underwent Intracytoplasmic Sperm Injection: A Retrospective Cohort Study

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Background and Aims: Diminished ovarian reserve (DOR) remains one of the greatest challenges for ART treatment. The objective of this study was to compare the laboratory outcomes of dual trigger and human chorionic gonadotropin (HCG) trigger alone in the final oocyte maturation for DOR patients. Methods: In this retrospective study,we evaluated 130 DOR women (dual group, n=75 and HCG group, n=45) underwent intracytoplasmic sperm injection (ICSI) between July 2020 and February 2023 at the Assisted Reproductive Department, Hung Vuong Hospital. DOR was defined as antral follicle count [Formula: see text]5 and serum anti-Müllerian hormone level [Formula: see text]1.2ng/mL. All patients using the GnRH antagonist protocolwith frozen embryo transfer. Baseline characteristics and cycle parameters, as well as IVF outcomes of both groups were compared. Generalized linear model (GLM) with negative binomial distribution for retrieved oocytes outcome and binomial distribution for other outcomes such as maturation rate, fertilization rate, rate of successfully achieving blastocytes and day-3 embryos. Results: Baseline characteristics were similar between the dual trigger group and the HCG group for age (p=0.2), AFC (p=0.44), AMH (p=0.76), BMI (p = 0.12), indication and number of priorARTcycles. The dual-trigger group had a significantly higher number of retrieved oocytes (95% CI 0.125–2.437, p=0.03), metaphase oocyterate (OR = 1.90, 95% CI 1.05–3.43; p=0.033). Fertilized oocyte rate (OR 1.42, 95% CI 2.015–0.795, p=0.967) andday-3 embryos (OR = 1.42, 95% CI 2.70–.73, p=0.294) were comparable in two groups. Conclusions: Our data suggests that dual trigger for final oocyte maturation might improve laboratory outcomes of IVF cycles in DOR patients.