ASSESSING THE EFFICACY OF LONG-PROTOCOL OVULATION STIMULATION USING GONADOTROPIN-RELEASING HORMONE AGONIST IN WOMEN EXPERIENCING INFERTILITY AND COMORBIDITY OF LEIOMYOMA AND CHRONIC ENDOMETRITIS

Abstract

Introduction. Nowadays infertility is one of the global medical and social issues worldwide. Assisted reproductive technologies, including in vitro fertilization, is one of the main techniques for restoring fertility. Among the main stages of IVF are controlled ovarian stimulation (COS), the optimal method of which is chosen depending on a numerous factor, such as the patient's age, the ovarian reserve, and the presence of concomitant gynecological or extragenital pathology. The prevalence of various combinations of gynecological pathologies, for example, the comorbidity of uterine leiomyoma and chronic endometritis, can affect the results of IVF in different ways, so scientists around the world are increasingly studying the management of such patients. The aim of the study is to compare controlled ovarian stimulation long-protocol parameters and its effectiveness in the therapy of infertile patients with the comorbidity of uterine leiomyoma and chronic endometritis. Methods and participants. We performed retrospective comparative analysis of anamnestic data of 130 women with infertility who underwent infertility treatment with assisted reproductive technologies. The patients were divided into three groups. In all groups, stimulation of superovulation was carried out following a long protocol with a GnRH agonist; p<0.05 was considered statistically significant during the statistical data processing. Results. The study has revealed that higher starting dose of gonadotropins, as well as higher total gonadotropin consumptions are required for the patients of the second study group with uterine leiomyoma and chronic endometritis, compared to the first study group and the control group. The number of retrieved oocytes, including mature ones, were the lowest as well as the number of immature, deeply immature and degenerative oocytes were the highest in the second study group. The lowest rate of normal fertilization (2pn) and, as a result, a lower blastocyst yield is recorded in the same group. The highest frequency of aborted pregnancies among achieved clinical pregnancies is observed in the group of infertile women with uterine leiomyoma and chronic endometritis. Conclusions. The presence of the uterine cavity pathology combined with persistent chronic inflammation of the uterine mucosa, as well as the absence of proper preparation for IVF-ET cycles are the main reasons for the negative infertility treatment outcomes in such patients. This justifies the need for appropriate optimal preparation and elimination of the identified negative factors before or during the infertility treatment.