Dual trigger and the impact on oocyte quality and embryo development: a Brazilian cohort.

Objective: We aimed to analyze controlled ovarian stimulation using GnRH antagonist in association with hCG (dual triggering) versus hCG alone (conventional triggering) for final oocyte maturation triggering in a population of unselected Brazilian women.

Methods: This was a retrospective observational study of IVF medical records between January 2019 and March 2020. Data from 335 women with infertility were included for study.

Impact of Body Mass Index and advanced maternal age on in vitro fertilization outcomes.

Objective: To evaluate the impact of body mass index associated with advanced maternal age on pregnancy outcomes.

Methods: A retrospective and observational study that included 808 in vitro fertilization cycles and evaluated: age, weight, height, number of oocytes and mature oocytes, number of embryos and transferred embryos, fertilization and clinical pregnancy rates. Four categories of body mass index: underweight, adequate weight, overweight and obesity.