Single Dose Gonadotropin-Releasing Hormone Agonist Luteal Support in Fresh Embryo Transfer: Variation in Timing, Type, and Dosage.

Objectives: To evaluate the effects of the addition of single-dose GnRH agonist to the routine progestogens use for luteal phase support on IVF outcome as compared to progestogens only.

Methods: This is a retrospective case-control study on selected patients who underwent IVF treatment with fresh embryo transfer (ET) under Medically Assisted Conception Unit, University Kebangsaan Malaysia Medical Center for the period of June 2015-June 2018. A higher dose of 0.