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Revista colombiana de Gastroenterología
Print version ISSN 0120-9957On-line version ISSN 2500-7440
Abstract
JARAMILLO-SANTOS, Mario Andrés; PUENTES-MANOSALVA, Fabián Eduardo; BAUTISTA-PARADA, Ileana Rocío and ARANGO-MOLANO., Lázaro Antonio. Pouchitis secondary to cytomegalovirus infection: Case report and literature review. Rev. colomb. Gastroenterol. [online]. 2022, vol.37, n.4, pp.495-501. Epub July 12, 2023. ISSN 0120-9957. https://doi.org/10.22516/25007440.837.
Total proctocolectomy with ileal pouch is the surgical procedure of choice for ulcerative colitis refractory to medical treatment, and pouchitis is the most frequent complication. It can affect up to 50% of patients in the first five years of the procedure. Although the etiology is not well established, its manifestation could be related to dysbiosis resulting from fecal stasis in genetically susceptible individuals with altered immune responses. Typical symptoms of pouchitis, such as diarrhea, abdominal pain, tenesmus, urgency, fecal incontinence, and, less commonly, rectal bleeding, are nonspecific, and the diagnosis must be confirmed by endoscopic and histologic examination. Cytomegalovirus infection is an infrequent cause of pouchitis; however, it should be considered in patients with pouchitis refractory to initial antibiotic management. Diagnostic tests include serological tests such as the measurement of antibodies, antigenemia, and C-reactive protein (CRP) in blood. The treatment of choice is ganciclovir, an intravenous drug that can induce severe complications such as myelosuppression, neutropenia, and thrombocytopenia. Post-treatment endoscopic follow-up is recommended to ensure mucosal healing, especially when there is suspicion of Crohn’s disease or involvement of the afferent loop on initial endoscopy.
Keywords : Ulcerative colitis; pouchitis; cytomegalovirus; proctocolectomy; ileal pouch.