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Pouchitis and gastric hyposecretion: cause or effect?

S Dubé1, F Heyen

  • 1Department of Surgery, Hôpital Maisonneuve-Rosemont, Montréal, Canada.

International Journal of Colorectal Disease
|August 1, 1990
PubMed
Summary

Pouchitis, an inflammation of the ileal pouch, may be linked to reduced stomach acid (hypochlorhydria). This study suggests gastric acidity changes could play a role in pouchitis development and recurrence.

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Area of Science:

  • Gastroenterology
  • Surgical Gastroenterology
  • Inflammatory Bowel Disease

Background:

  • Pouchitis is a known complication following ileal pouch-anal anastomosis.
  • The exact cause of pouchitis remains controversial.
  • Investigating factors beyond the pouch itself is crucial.

Purpose of the Study:

  • To explore the potential role of gastric acidity in the physiopathology of pouchitis.
  • To determine if hypochlorhydria is associated with pouchitis development or recurrence.

Main Methods:

  • Studied 70 patients with ileal reservoirs (65 ulcerative colitis, 5 familial adenomatous polyposis).
  • Assessed gastric acidity (fasting gastric pH) in patients with pouchitis.
  • Observed treatment responses to metronidazole, cimetidine, sucralfate, and vagotomy.

Main Results:

  • Fifteen patients developed pouchitis; 10 responded to metronidazole.
  • Three patients with resistant pouchitis had high fasting gastric pH, suggesting hypochlorhydria.
  • Pouch removal in one patient normalized gastric pH.

Conclusions:

  • Preliminary findings suggest a potential association between pouchitis and hypochlorhydria.
  • Physiological changes from the ileal reservoir may reduce gastric acidity, potentially contributing to pouchitis.
  • Further research is needed to confirm the impact of ileal reservoirs on gastric physiology and pouchitis.

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