THE EFFECT OF THE RUSSIAN COMBINED VECTOR VACCINE AGAINST THE NOVEL CORONAVIRUS INFECTION CAUSED BY SARS-COV-2 ON OVARIAN RESERVE AND MENSTRUAL FUNCTION IN REPRODUCTIVE-AGED WOMEN

ABSTRACT

Relevance Despite the widespread use of COVID-19 vaccination worldwide, the number of studies on the impact of various types of vaccines on women’s reproductive health is limited in the scientific literature. The preliminary results of the study on the negative effect of vaccination with the Russian Gam-COVID-Vac vaccine on the ovarian reserve and the level of antiphospholipid antibodies in reproductive-aged women were first published in 2021. Objective: To evaluate the effect of the Russian combined vector vaccine against the novel coronavirus infection caused by SARS-CoV-2 on the parameters of ovarian reserve and menstrual function in reproductive-aged women. Materials and methods: A prospective interventional study included 220 women vaccinated with a combined vector vaccine Gam-COVID-Vac for the prevention of a novel coronavirus infection caused by SARS-CoV-2. The inclusion criteria were age from 18 to 45, preserved menstrual function, no history of COVID-19, negative PCR test result for SARS-CoV-2 and negative SARS-CoV-2 IgG antibody test before vaccination, no pregnancy, and no history of serious illnesses. The patients were examined twice immediately before vaccination and 90 days after the first dose was injected. Antral follicle count was determined during the ultrasound examination of the pelvic organs. Serum levels of AMH, FSH, estradiol on the 2nd–5th day of the menstrual cycle, as well as IgG antibodies to SARS-CoV-2 were measured using enzyme immunoassay. Results: The efficacy and safety of the Russian combined vector vaccine against COVID-19 was high. The humoral immune response (specific IgG to SARS-CoV-2) was detected in 98.6% of vaccinated patients. There were no cases of severe side effects after vaccination. There were no significant changes in the hormone levels, antral follicle counts and menstrual function before and after vaccination;women of advanced reproductive age (©37 years) did not show considerable changes either. Conclusion: The results of the study indicate that vaccination with a combined vector vaccine Gam-COVID-Vac against a novel coronavirus infection caused by SARS-CoV-2 is effective and safe;it does not have a negative effect on ovarian reserve and menstrual function in reproductive-aged women.