Morphology and morphometric indicators of the mucous membrane of various parts of the intestine of patients with postcholecystectomy syndrome

The actuality of the problem is associated with an increase in the number of patients with cholelithiasis of working age and a significant increase in cholecystectomies not only in Russia, but throughout the world. It is known that more than 2,5 million are performed annually. Moreover, 5-40% of operated patients develop postcholecystectomy syndrome, which is manifested by recurrent abdominal pain and cholegenic diarrhea. The aim of the study is to assess morphofunctional changes in the mucous membrane of various parts of the intestine in patients with postcholecystectomy syndrome. Histological, histochemical, morphometric and bacterioscopic, parasitological methods were used to study 42 biopsy specimens of the mucous membrane of various parts of the intestines of patients who underwent cholecystectomy. The control group consisted of 18 biopsies of practically healthy individuals. To objectify the study, a morphometric study of the mucous membrane of the duodenum according to 34 parameters, of the cecum and sigmoid colon according to 22 parameters was carried out. In the mucous membrane of the duodenum, chronic duodenitis of varying degrees of activity of the pathological process and atrophy of the intestinal villi were revealed, the intestinal glands were shortened, the intestinal villi are less wide. The epithelial layer of intestinal villi and intestinal glands was abundantly infiltrated with neutrophilic granulocytes. The density of the inflammatory cellular infiltrate in the stroma of the intestinal villi and intestinal glands increased. On the surface of the epithelial layer of the intestinal villi and between the intestinal glands, campylobacters were often found, less often - cryptosporidia. In the mucous membrane of the cecum and sigmoid colon, chronic colitis of varying degrees of activity of the pathological process and atrophy of the intestinal glands were revealed. The thickness of the mucous membrane and the depth of the intestinal glands were lower than normal. Thus, in patients with postcholecystectomy syndrome, pronounced morphometric and histological changes were revealed in the mucous membrane of various parts of the intestine, while the depth and degree of its damage were more significant in its proximal parts.