There is a Value of Luteinizing Hormone Predictive of in Vitro Fertilization Treatment Outcome in Antagonist Protocols?

This study, prospective randomized controlled trial, tried to identify a cut off value of luteinizing hormone predictive of in vitro fertilization outcome in a fixed or flexible gonadotropin-releasing hormone antagonist protocols. 202 norma-ovulatory women \< 39 years were randomized to fixed or flexible group in GnRH antagonist protocols The follicular phase profile of luteinizing hormone, estradiol and progesterone in the two study groups was measured. Total number of retrieved oocytes, implantation and pregnancy rate were recorded. .