Hyperbaric oxygen therapy alters bowel perfusion and improves outcomes in patients with treatment-refractory ulcerative colitis: a prospective pilot trial | Canada Hyperbarics Skip to main content
Clinical Trial J Crohns Colitis 2026

Hyperbaric oxygen therapy alters bowel perfusion and improves outcomes in patients with treatment-refractory ulcerative colitis: a prospective pilot trial

Mulders L, Pruijt M, Van Oostrom J, Van Der Zanden E, Neefjes-Borst A, Koelink P, et al. — J Crohns Colitis, 2026

Tier 2, Indexed

Automatically imported from PubMed based on relevance criteria.

Summary

What Researchers Did

Researchers conducted a pilot study where patients with severe ulcerative colitis, who hadn't responded to other treatments, received 10 or 20 daily hyperbaric oxygen therapy sessions at 2.4 atmospheres absolute for 120 minutes each.

What They Found

In this pilot study of 16 patients, 25% (2 out of 8) of those receiving 10 HBOT sessions and 50% (4 out of 8) of those receiving 20 sessions achieved a combined clinical and endoscopic response by week 12. Patients who responded clinically also showed increased blood flow in their bowels, with a peak enhancement of 12.1 dB, while non-responders saw a decline of 5.4 dB. The therapy was well tolerated, with no serious side effects or discontinuations.

What This Means for Canadian Patients

For Canadian patients living with ulcerative colitis that hasn't responded to standard treatments, this study suggests that hyperbaric oxygen therapy could be a safe and effective additional treatment. It may help improve symptoms and increase blood flow to the bowel, potentially offering a new option for managing this challenging condition.

Canadian Relevance

No direct Canadian connection identified.

Study Limitations

This was a small, open-label pilot study, meaning the findings need to be confirmed in larger, more controlled trials.

This plain-language summary is generated with AI assistance and checked against the source abstract before publication. See our editorial policy.

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Study Details

Study Type Clinical Trial
Category Wound Care
Source Pubmed
PubMed ID 42136082
Year Published 2026
Journal J Crohns Colitis
MeSH Terms Humans; Colitis, Ulcerative; Hyperbaric Oxygenation; Pilot Projects; Male; Female; Adult; Prospective Studies; Middle Aged; Treatment Outcome; Intestines

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Disclaimer: This study summary is provided for informational and educational purposes only. It does not constitute medical advice. The information presented reflects the findings of the original research authors and may not represent the views of Canada Hyperbarics. Always consult a qualified healthcare professional before making treatment decisions.

Last reviewed: May 22, 2026 | Reviewed by: Canada Hyperbarics Editorial Team | Editorial process | Research sources | Counts & methodology