• E P Yakovenko, T V Strokova, A N Ivanov, A V Iakovenko, I Z Gioeva, and M A Aldiyarova.
• Pirogov Russian National Research Medical University.
• Terapevt Arkh. 2022 Feb 15; 94 (2): 180-187.

BackgroundIn the treatment of post-infectious irritable bowel syndrome (PI-IBS), the leading role belongs to the normalization of the composition of the intestinal microbiome, the disturbances of which are associated with previous intestinal infections.AimTo study the effectiveness of the drug Bifiform in the treatment of PI-IBS.Materials And MethodsAn open, prospective, comparative, randomized study included 62 patients with PI-IBS. The diagnosis was confirmed by the results of clinical, laboratory and endoscopic examination of the intestine and met the diagnostic criteria for IBS of the Rome Consensus IV. The patients were randomized into 2 groups depending on the therapy. The patients of the main group received an antispasmodic drug (mebeverin 200 mg 2 times a day or trimebutin 200 mg 3 times a day for 4 weeks), an antibiotic (rifaximin 400 mg 3 times a day or nifuroxazide 400 mg 2 once a day for 1 week), a drug that normalizes the consistency of feces (dioctahedral smectite or macrogol 4000) and Bifiform 2 capsules 2 times a day for 2 weeks. For patients of control group similar therapy was performed without the Bifiform. Evaluation of the effectiveness of treatment was carried out at the end of the course of therapy and 6 months after its termination.ResultsAll included patients with PI-IBS had abdominal pain, flatulence and tenderness to palpation along the bowel, most of them had diarrhea. Disorders of the intestinal microbiota were detected in 77.4% of patients, while excessive bacterial growth in the small intestine occurred in 72.6%, disorders of the colon microbiocenosis with the presence of opportunistic bacteria in 62.9% of patients. A significant part of the patients had a combination of small and large intestinal dysbiosis. Histological examination of the colon mucosa showed signs of low degree of inflammation activity in all patients. The moderate increase in the level of fecal calprotectin was found in 62.2% of patients with colonic dysbiosis. The majority of patients in the main group showed a pronounced positive dynamics of clinical manifestations of the disease, restoration of the normal composition of the intestinal microbiota and normalization of the content of fecal calprotectin at the end of the course therapy. The good result was observed much more often in the main group at the end of the course of treatment and 6 months after its termination.ConclusionThe inclusion of Bifiform in the complex therapy of PI-IBS significantly increases its effectiveness both in arresting the clinical manifestations of the disease, and in restoring the normal composition of the intestinal microbiome and reducing the inflammatory process in the intestinal mucosa. In the majority of patients receiving Bifiform, the remission of the disease achieved at the end of the course of treatment and persisted even 6 months after its termination.

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