Low-dose hCG as trigger day and 35 hr later have different ovarian hyperstimulation syndrome occurrence in females undergoing In vitro fertilization: an RCT

ABSTRACT

Background: ovarian hyperstimulation syndrome [OHSS] is an iatrogenic complication, which can cause high morbidity and mortality. Use of gonadotropin releasing hormone [GnRH] agonist instead of human chorionic gonadotropin [hCG] in GnRH antagonist cycles causes luteinizing hormone surge by GnRH stimulation which reduces the risk of OHSS by reducing the total amount of gonadotropin; however, there is no possibility of transferring fresh embryos