Related Experiment Video
Updated: Jun 9, 2025
Author Spotlight: Developing a Rat Model for Pouchitis Research and Treatment
Published on: May 31, 2024
Types, behaviour and therapeutic requirements of inflammatory pouch disorders: Results from the RESERVO study of
F Mesonero1, Y Zabana2, A Fernández-Clotet3
1Hospital Universitario Ramón y Cajal (Madrid), Spain; Universidad Alcalá de Henares (Madrid), Spain.
Background And Aims:
Inflammatory pouch disorders exhibit a heterogeneous clinical spectrum and therapeutic requirements have not been properly studied.
Methods:
This retrospective, multicentre study included ulcerative colitis patients with ileal pouch construction and were later diagnosed with an inflammatory pouch disorder between 1995 and 2020. Classifications, behaviour and therapies applied were recorded and compared in the long-term.
Results:
Overall, 338 patients were recruited. The most common disorders were pouchitis (n = 258, 76%), Crohn's disease of the pouch (n = 55, 16%) and cuffitis (n = 25, 7%). Pouchitis presented mainly as chronic (65.2%) and recurrent (87%) forms. Crohn's disease manifested as stricturing/penetrating in 53% of cases and perianal disease in 42%. Patients received multiple therapies: 86% antibiotics, 42% steroids, 27% immunosuppressants, 43% biologics and 27% surgery. Compared with pouchitis, Crohn's disease of the pouch was characterised by a later diagnosis (99 vs. 55 months, p < 0.001) and greater needs for immunosuppressants (OR 3.53, 1.79-6.94, p < 0.0001), biologics (OR 5.45, 2.78-10.6, p < 0.0001) and surgeries (OR 2.65, 1.43-4.89, p < 0.001).
Conclusions:
Chronic pouchitis is the most common pouch disorder presentation. These entities have diverse therapeutics requirements, particularly for Crohn's disease of the pouch.
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