ASSOCIATION BETWEEN PROGESTERONE LEVEL ON HUMAN CHRONIC GONADOTROPIN (HCG) TRIGGER DAY AND CLINCAL OUTCOMES OF CLEAVAGE-STAGE EMBRYOS OR BLASTOCYSTS TRANSFER IN ASSISTED REPRODUCTION TECHNOLOGY (ART) CYCLES

Abstract

Several studies have reported that increased progesterone levels, usually defined as greater than 1.5 ng/mL, occur on the human chronic gonadotropin (hCG) day in approximately 6-30% of COH cycles. The increased serum progesterone level on the day of hCG administration is associated with significantly lower ongoing pregnancy rates in in vitro fertilization and embryo transfer (IVF-ET) cycles. However, the effect of increased serum progesterone levels on the day of hCG administration in COH cycles on clinical outcomes for different embryos transfer remains controversial.