Features of Vascularization of the Transitional Zone of the Uterus in Patients with Chronic Nonspecific Endometritis

Aim. Тo study the peculiarities of blood supply to the transitional zone of the uterus in patients with chronic nonspecific endometritis (ChE). Materials and methods . 106 women aged 22–45 years were examined. The main group included 72 patients with morphologically verified chronic endometritis. We distinguished subgroup I (n = 39.37%) of HE with an autoimmune component, subgroup II (n = 33.31%) with HE without an autoimmune component, as well as a control group consisting of 34 patients with a normal result of morphological examination. Transabdominal and transvaginal ultrasound examination (ultrasound) of the uterus and appendages was performed on the 18th–23rd day of the cycle, with the calculation of the parameter proposed by US — the coefficient of vascularization of the transitional zone of the uterus (k). Outcomes. In the control group, the average k value was 32 ± 2.6%, in the subgroup of patients with an autoimmune component (subgroup I) — 17.0 ± 4.0%, in the subgroup with a nonimmune component (subgroup II) — 23.0 ± 3.4%. Statistically significant differences in the k value were obtained between subgroup I and all the others, but there were no differences between subgroup II and the control group. Autoimmune nonspecific HE was predicted when the vascularization coefficient was below 20.9%. In nonimmune nonspecific HE, the resulting model was not statistically significant. Nonimmune nonspecific HE was predicted when the vascularization coefficient was equal to or higher than 18.6%. Under normal conditions, the resulting model was statistically significant. The norm was predicted when the vascularization coefficient was equal to or higher than 27.6%. Conclusion. The proposed coefficient of vascularization of the transitional zone of the uterus (k) showed high diagnostic value in patients with nonspecific СhE and it can be recommended for inclusion in the ultrasound examination protocol at the stage of pre-gravidar preparation.