{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T13:52:47Z","timestamp":1791899567842,"version":"4.3.4"},"reference-count":58,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2024,9,30]],"date-time":"2024-09-30T00:00:00Z","timestamp":1727654400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,6,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Ileoanal pouch\u2013related fistula (IAPRF) is a possible complication after ileal pouch-anal anastomosis that significantly impacts pouch prognosis and the patient\u2019s quality of life. This study aimed to perform a comprehensive narrative review to better classify the epidemiology, risk factors, etiology, management, and outcomes of IAPRF, and to propose an algorithm for its systematic classification. Ten studies comprising 664 patients with IAPRF were identified, with a prevalence ranging from 4% to 45%. The reported fistula types were as follows: pouch-vaginal (n\u2005=\u2005236, 35.5%), perineal (n\u2005=\u2005139, 21%), enterocutaneous (n\u2005=\u200554, 8%), pouch-anal (n\u2005=\u200553, 8%), presacral (n\u2005=\u200518, 2%), and anastomotic (n\u2005=\u200515, 2%). Postsurgical pelvic sepsis occurred in 21%-37.2% of patients. Twenty additional studies regarding fistula classification divided them according to onset time and etiology, defining 5 categories: anastomotic-related, technical aspects of the surgery, Crohn\u2019s disease\u2013like pouch inflammation, cryptoglandular, and malignancy. Pouch excision was reported in up to 70% of patients. Fistulas associated with anastomotic complications, technical surgical issues, and cryptoglandular fistulas warrant surgical management. On the other hand, fistulas associated with inflammation are preferentially managed with biologics or small molecules.<\/jats:p>","DOI":"10.1093\/ibd\/izae221","type":"journal-article","created":{"date-parts":[[2024,9,5]],"date-time":"2024-09-05T17:05:19Z","timestamp":1725555919000},"page":"1716-1722","source":"Crossref","is-referenced-by-count":5,"title":["Ileoanal Pouch\u2013Related Fistulas: A Narrative Review"],"prefix":"10.1093","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8076-9706","authenticated-orcid":false,"given":"Sergio","family":"Bronze","sequence":"first","affiliation":[{"name":"Gastroenterology and Hepatology Department, Unidade Local de Sa\u00fade de Santa Maria , Lisbon ,","place":["Portugal"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9640-950X","authenticated-orcid":false,"given":"Maia","family":"Kayal","sequence":"additional","affiliation":[{"name":"The Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai , New York, NY ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7171-0139","authenticated-orcid":false,"given":"Maria Manuela","family":"Estevinho","sequence":"additional","affiliation":[{"name":"Gastroenterology Department, Unidade Local de Saude de Gaia e Espinho , Porto ,","place":["Portugal"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sue","family":"Hahn","sequence":"additional","affiliation":[{"name":"Department of Surgery, Icahn School of Medicine at Mount Sinai , New York, NY ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergey","family":"Khaitov","sequence":"additional","affiliation":[{"name":"Department of Surgery, Icahn School of Medicine at Mount Sinai , New York, NY ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean-Frederic","family":"Colombel","sequence":"additional","affiliation":[{"name":"The Henry D. 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