Abstract
Endometrioid heterotopia can have an adverse systemic effect on the organism through erythropoietin synthesis, which can affect erythropoiesis and reflect in blood analysis. The aim of the study was to investigate the effect of endometrioid heterotopia on parameters of red blood. The investigated group included patients with endometrioid heterotopias of various localisations (115 cases), functional ovarian cysts made up the control group (28 cases). Retrospectively, the number of red blood cells, the amount of hemoglobin, and the level of (CA-125) were recorded in the medical histories. The parameters were taken into account both before and after radical surgery. The highest values of the number of red blood cells and hemoglobin are observed in endometrioid ovarian cysts, followed by adenomyosis, endometriosis of the pelvic peritoneum and skin scar, respectively. After surgery, these differences have disappeared. Comparison of the number of red blood cells and hemoglobin before and after surgery revealed significant changes for both parameters in the group of patients with endometriosis, while in the control group the number of red blood cells and the level of hemoglobin did not change significantly. The number of cases with endometrioid ovarian cysts, where the red blood cell count was higher than normal, significantly differed from the control group; on the contrary, with non-endometrioid ovarian cysts, a significantly more frequent decreased number of red blood cells was observed. In addition, red blood counts in patients with endometriosis before surgery had a moderate negative correlation with the level of CA-125 protein.The possible systemic influence of endometrioid heterotopias on erythropoiesis in the form of its stimulation is demonstrated. In non-endometrioid ovarian cysts a significantly more frequent decrease in the number of red blood cells is observed. The reveales pecularities can be used for complex differential diagnostics of ovarian cysts at the preoperative stage due to their easy accessibility and minimally invasive nature.
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