The pathogenesis of primary pouchitis following ileal pouch-anal anastomosis: a review of current hypotheses ()
ABSTRACT
Primary pouchitis is a common complication of ileal pouch-anal anastomosis following proctocolectomy in patients treated for ulcerative colitis (UC), but is un-usual for those treated for familial adenomatous polyposis (FAP). While a number of theories as to the pathogenesis of this inflammatory condition have been proposed, no single one has been wholly satis-factory. Much research has been devoted to investi-gating a link between the pathogenic factors involved in UC, but not FAP, and those underlying pouchitis. The contribution of sulfate-producing bacteria has also been explored. The role of other intraluminal factors, such as short chain fatty acids and unconju-gated bile salts, has also been investigated. A unifying theory of a multi-step process might explain the pathogenesis of pouchitis, but further research is re-quired to proof causation. It is likely that pouchitis develops as a result of a combination of genetic, im-munological, microbial and metabolic factors. Future insight into the causes of pouchitis may eventually allow for the development of more effective treat-ments.
Share and Cite:
Bath, S. , Selinger, C. and Leong, R. (2011) The pathogenesis of primary pouchitis following ileal pouch-anal anastomosis: a review of current hypotheses.
Open Journal of Gastroenterology,
1, 7-12. doi:
10.4236/ojgas.2011.12002.