Most appropriate initial treatment: For a patient with ulcerative colitis involving the rectum and sigmoid colon (proctosigmoiditis) who is highly symptomatic but without systemic symptoms and has mild anaemia, the initial treatment is to offer a topical aminosalicylate as first-line treatment to induce remission.
If remission is not achieved within 4 weeks, consider adding a high-dose oral aminosalicylate to the topical aminosalicylate or switching to a high-dose oral aminosalicylate plus a time-limited course of a topical corticosteroid.
If further treatment is needed, stop topical treatments and offer an oral aminosalicylate and a time-limited course of an oral corticosteroid.
For people who decline any topical treatment, consider a high-dose oral aminosalicylate alone (explaining it is less effective), then if no remission within 4 weeks, add a time-limited course of oral corticosteroids.
This approach aligns with management of mild-to-moderate left-sided or proctosigmoiditis ulcerative colitis without systemic symptoms.
Mild anaemia is noted, but systemic symptoms are absent, so aggressive systemic corticosteroids or hospital admission are not indicated initially.
NICE NG130