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Inflammatory Bowel Disease (IBD)

Anesthesia Implications

Updated On: July 23, 2026

Anesthesia Implications

Volume and electrolytes - Diarrhea and bowel losses cause dehydration and electrolyte derangement; check a basic metabolic panel and correct before surgery where possible.

Nutrition and anemia - Chronic disease brings malnutrition and anemia; optimize and have blood available for major cases.

Steroids and immunosuppression - Chronic steroids may require stress-dose coverage; note immunosuppressants and the associated infection risk.

VTE risk - Active IBD is prothrombotic; use VTE prophylaxis, balanced against surgical bleeding.

Bowel surgery specifics - Often urgent (obstruction, perforation, toxic megacolon), with aspiration risk and sepsis; treat accordingly.

Pathophysiology

Inflammatory bowel disease — Crohn disease and ulcerative colitis — is chronic immune-mediated intestinal inflammation with a relapsing course and systemic effects.

Beyond the gut (diarrhea, obstruction, perforation, fistulae), patients face malnutrition, anemia, dehydration and electrolyte loss, a prothrombotic state during flares, chronic corticosteroid and immunosuppressant therapy, and extraintestinal manifestations. Many present for bowel surgery, often urgently.


Suggested Reading

Hemmings HC Jr, Yao FF, Goldstein PA, et al, eds. Yao & Artusio's Anesthesiology: Problem-Oriented Patient Management. 10th ed. Wolters Kluwer; 2025.
Gropper MA, Eriksson LI, Fleisher LA, et al, eds. Miller's Anesthesia. 10th ed. Elsevier; 2024.
Hines RL, ed. Stoelting's Anesthesia and Co-Existing Disease. 8th ed. Elsevier; 2021.
Dunker MS, Bemelman WA, Slors JF, et al. Laparoscopic-assisted vs open colectomy for severe acute colitis in patients with inflammatory bowel disease (IBD): a retrospective study in 42 patients. Surg Endosc. 2000. PMID: 11080402.