Serum LH level prior to progestin administration is significant on pregnancy and live birth in programmed frozen-thawed embryo transfer cycles.

Purpose: To evaluate the impact of serum LH levels prior to progestin administration on the outcomes of programmed frozen-thawed embryo transfer (FET) cycles.

Methods: Retrospective cohort study was conducted to compare the treatment outcomes between four groups based on the 25 percentiles of serum LH levels before progestin administration in 596 cycles of 518 patients undergoing artificial endometrial preparation protocols for FET. Primary outcome measures were ongoing and live birth rates.

IVF Outcomes of Microdose Flare-up, GnRH Antagonist, and Long Protocols in Patients having a Poor Ovarian Response in the First Treatment Cycle.

Objective: To compare the IVF outcome of patients assumed to be poor responders before their first cycle treated by microdose flare-up or GnRH antagonist protocols with patients who had a poor ovarian response after their first cycle stimulated with long GnRH protocol.

Study Design: Observational cohort study.

Place And Duration Of Study: Department of Obstetrics and Gynecology, IVF Unit of Gazi University Faculty of Medicine, from September 2014 to February 2019.