Research

Mixed

Bariatric surgery (Roux-en-Y gastric bypass or sleeve gastrectomy) is technically feasible and safe for patients with pre-existing ileostomy or colostomy, without causing increased ostomy output or dehydration.

If you have an existing ostomy (ileostomy or colostomy) and are considering bariatric surgery, current preliminary evidence suggests it is feasible and safe, with no increased risk of dehydration or output changes compared to patients without an ostomy. Consult with a bariatric surgeon to evaluate your specific case, as individual factors like the cause of your ostomy and overall health status will determine your candidacy.

LimitedSupportsLOW confidence
Bariatric surgery is technically feasible in selected patients with ileostomy/colostomy with a reasonable short-term safety profile.
Ray Portela et al. · Bariatric Surgical Practice and Patient Care · 2022

Why this rating

Small sample size (n=6), retrospective case series, no control group, short follow-up.

Source

Bariatric Surgery in Patients with Existing Ostomy: A Preliminary Feasibility Study

Ray Portela et al. · Bariatric Surgical Practice and Patient Care · 2022

DOI 10.1089/bari.2021.0131

case_series · n=6Cited 1×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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