Hemostasis in Infertile Patients Participating in Assisted Reproduction Programmes

Abstract

Study Objective: To evaluate the impact of multifollicular ovarian stimulation in in vitro fertilisation (IVF) programmes on hemostasis. Study Design: perspective comparative study. Materials and Methods. The study included 68 patients divided into two groups: study group (n = 36) — infertile patients; control group (n = 32) — healthy non-pregnant women of reproductive age. The protocol with gonadotrophin releasing hormone antagonists was used for ovulation stimulation. Hemostasis system in study patients was evaluated in 2 weeks after embryos were transferred to uterus; in control group — on day 20–22 of menstrual period. For the study group, we evaluated clotting test parameters of hemostasis system, D-dimers (D-d) and fibrin monomer (FM). Study Results. We have not found statistically significant differences between hemostasis screening results of study groups. We have identified increase in pro-coagulatory properties of blood in the study group patients: increase in FM and D-d (р < 0.0001 in both cases). There is an association between study parameters and pregnancy (p < 0.001) and no association with obesity, age and infertility. Conclusion. In IVF programme, FM and D-d levels rise, evidencing hypercoagulation development. An increase in FM levels was even more significant and can be used as an early and specific fibrogenesis marker. Keywords: assisted reproductive technologies, fibrin monomer, D-dimer, hypercoagulation, venous thromboembolic events.