No impact of treated hyperprolactinemia on cumulative live birth rate and perinatal outcomes in in vitro fertilization-embryo transfer

Abstract

Aim: To investigate whether treated hyperprolactinemia has an impact on pregnancy outcomes in in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET).

Methods: A retrospective cohort study was conducted on 535 women who underwent IVF/ICSI-ET between January 2012 and December 2016, of which 123 had treated hyperprolactinemia (case group), 369 were matched controls. Besides, 43 remained hyperprolactinemic after treatment consisted of abnormal group. Cumulative live birth rate (CLBR) after one oocyte retrieval cycle was taken as the primary outcome. A time-to-event analysis using Fine and Gray's test was used to compare CLBR between case and control groups.

Results: The median prolactin level was 80.00 ng/mL before dopamine agonist treatment in case group, and it reduced to 14.80 ng/mL after the treatment, similar to the level of control group (15.17 ng/mL, P = 0.316). No significant differences in baseline characteristics were found between case and control groups. The CLBR after one oocyte retrieval cycle were 69.1% (85/123) and 66.4% (245/369) in the case group and control group, respectively (P = 0.580). No significant differences were found between case and control groups in perinatal outcomes. Pregnancy and perinatal outcomes of abnormal group were similar to those of case and control groups.

Conclusion: Impact of treated hyperprolactinemia on CLBR and perinatal outcomes in IVF-ET was not evident.

Keywords: assisted reproductive treatment; hyperprolactinemia; in vitro fertilization; live birth; perinatal outcome.