The SIBDCS (Swiss IBD Cohort Study) data and Cochrane meta-analyses support which timing of surgery in medically refractory ulcerative colitis with toxic megacolon?
- A 48–72 hours of intensive medical therapy; proceed to subtotal colectomy if no improvement ✓
- B Immediate total proctocolectomy with ileal pouch-anal anastomosis
- C 7–10 days of IV cyclosporine before declaring medical failure
- D Emergency subtotal colectomy immediately on admission
Explanation
The standard management of acute severe ulcerative colitis (ASUC) including toxic megacolon follows the Oxford/Truelove criteria and involves a 72-hour trial of intensive IV corticosteroid therapy (or rescue therapy with IV cyclosporine or infliximab). Failure to respond by 72 hours mandates urgent subtotal colectomy (not proctocolectomy, to avoid pelvic complications in an acutely ill patient) with end ileostomy and preservation of the rectal stump for future IPAA. Immediate operation without a trial of medical therapy is reserved for perforation, uncontrolled hemorrhage, or clinical deterioration. Proctocolectomy with pouch creation is deferred to a later elective stage.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
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Written and medically reviewed by the StethoPrep medical team.