Purpose: To evaluate whether high LH/FSH ratio has a clinical impact on patients with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization (IVF) with GnRH-agonist/antagonist protocols or in vitro maturation (IVM) treatments.
Methods: We retrospectively reviewed all PCOS patients with day 3 LH/FSH ratio ≥1.5 who underwent IVF or IVM. The main outcomes measures were embryo quality and pregnancy rate.
Results: A total of 75 cycles were included. Among these, 44 patients underwent long agonist protocol, 16 antagonist protocol and 15 IVM. Age, basal LH and FSH levels, as well as duration of infertility were comparable for all groups. The LH level on the day of hCG administration was significantly lower in the antagonist group (0.9 IU/ml) compared to the long agonist group (1.4 IU/ml, p = 0.01). There was no difference in pregnancy rates among the groups: 27.2 % in the long agonist group, 37.5 % in the antagonist group and 26.6 % among the IVM patients.
Conclusions: High LH/FSH ratio had no adverse effect on pregnancy rates in all three treatment modes.
Keywords: High LH/FSH ratio; IVF; IVM; PCOS.