Abstract
Background: To investigate the predictive value of human chorionic gonadotropin and progesterone levels on pregnancy outcomes in patients receiving in vitro fertilization due to simple fallopian tube factors. METHODS:We retrospectively analyzed the clinical data of 854 cycles from the simple fallopian tube factor in vitro fertilization fresh embryo transfer. The clinical data of 854 cycles from January 2010 to December 2018 was divided into 7 groups according to the progesterone level on human chrionic gonadotropin day. Live birth rates and observe trends were calculated. The receiver operating characteristic curve was established to determine the optimal cutoff value for progesterone, which was used to further divide the data into 3 groups: Group 1 (progesterone ≦ 1.0 ng/ml), Group 2 (1.0 ng/ml ≤ progesterone ≤ 1.25 ng/ml), and Group 3 (progesterone≥1.25ng/ml). We then compared the ovulation results and clinical outcomes between the 3 groups. RESULTS There were no significant differences in age, infertility years, Gonadotropin dosage, Gonadotropin days, Luteinizing hormone level on human chrionic gonadotropinday, 2pronuclear fertilization rate, clinical pregnancy rate, live birth rates, full-term birth rate, and preterm birth rate among the three groups, but body mass index(P = 0.001), basal luteinizing hormone (P = 0.034), estrogen peak (P ＜0.001), number of oocytes obtained (P＜0.001) were significantly different. CONCLUSION The level of progesterone on human chrionic gonadotropin day does not affect the clinical pregnancy rate and live birth rates after in vitro fertilization. However, progesterone levels between 1.0-1.25ng/ml may lead to good clinical pregnancy outcomes.
A decrease in serum estradiol levels after human chorionic gonadotrophin administration predicts significantly lower clinical pregnancy and live birth rates in in vitro fertilization cycles
