The value of vaginal lactobacilli in the restoration of vaginal microbiocenosis in women in the early postpartum period, depending on the method of delivery

BACKGROUND: Despite numerous studies of the vaginal microbiota, there is still a lack of knowledge regarding its restoring dynamics in the early postpartum period. The condition of the vaginal microflora during pregnancy plays a key role in maintaining the physiological microbiocenosis of the birth canal and creating conditions for the normal course of pregnancy, the establishment of an infants intestinal microbiota, and the further development of the child. AIM: The aim of this study was to estimate the role of certain types of lactobacilli in restoring the vaginal microbiota in women in the early postpartum period, depending on the method of delivery. MATERIALS AND METHODS: We examined 150 women at 38-41 weeks of gestation. The clinical material for the study was vaginal discharge before and after delivery. To determine the species of lactobacilli and other microorganisms in the clinical material, we used quantitative real-time PCR. RESULTS: Before delivery, lactobacilli were found in vaginal discharge in 144 out of 150 women (96.0%), their number in the majority being more than 106 GE. In the postpartum period, lactobacilli were found in 66/128 (51.5%) cases, while prevailing in women after vaginal delivery in 50/65 (76.9%) cases (4.61.6, p = 0.000000). Among the dominant species of lactobacilli was L. crispatus, found in vaginal discharge before delivery, which most often affects the recovery of the vaginal microbiota in the postpartum period (29 out of 61 women, 47.5%). L. iners detected in the lochia predisposes to the violation of uterine involution in the early postpartum period (p = 0.03). CONCLUSIONS: Normal vaginal microbiota in the postpartum period is restored more quickly in women after vaginal delivery. Our study confirms that L. crispatus and L. iners play a major role in restoring the vaginal microbiota in the postpartum period.