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Acute Severe Ulcerative Colitis — RACP Adult Medicine MCQ

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HardGastroenterology & HepatologyAcute Severe Ulcerative ColitisRACP Adult Medicine

A 25-year-old man presents with acute severe ulcerative colitis (bloody diarrhoea >6 times/day, pulse 110 bpm, CRP 85 mg/L). He has been admitted and commenced on IV hydrocortisone 100 mg QID. After 3 days, he continues to have 8 bloody stools per day with CRP 65 mg/L. What is the most appropriate next step?

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Correct answer: ECommence infliximab

Failure to respond to 3 days of IV corticosteroids in acute severe UC (Travis criteria) defines steroid-refractory disease. Rescue therapy with infliximab (5 mg/kg IV) or IV ciclosporin are the options to avoid colectomy. Infliximab is increasingly preferred due to ease of use, established long-term maintenance data, and non-inferiority shown in the CONSTRUCT trial. If no response to rescue therapy within 4–7 days, colectomy should be considered.

Reference: eTG – 2025 – Gastrointestinal; ECCO – 2022 – Acute Severe UC Guidelines