Outcomes of acute severe ulcerative colitis at initial presentation

Area of Science:

• Gastroenterology
• Internal Medicine
• Clinical Research

Background:

• Acute severe ulcerative colitis (ASUC) affects 20-25% of ulcerative colitis (UC) patients.
• ASUC can be the initial presentation of UC in one-third of cases, posing unique clinical challenges.
• A significant portion of ASUC patients unresponsive to medical therapy may require surgery.

Purpose of the Study:

• To compare clinical outcomes in patients hospitalized with ASUC based on disease onset: new-onset versus established UC.
• To identify differences in hospitalization duration, treatment response, and adverse events between these two groups.

Main Methods:

• Retrospective cohort study involving 185 patients hospitalized with ASUC.
• Comparison of demographic and clinical characteristics between new-onset and established UC groups.
• Analysis of outcomes including hospitalization length, steroid response, need for rescue therapy, colectomy rates, mortality, and readmission.

Main Results:

• New-onset UC patients had longer hospitalizations (19 vs. 12 days) and a greater delay in receiving rescue therapy (11 vs. 6 days).
• Severe bacterial infections were more frequent in the new-onset group (16% vs. 4%).
• No significant differences were observed in steroid response, need for rescue therapy, colectomy, mortality, or readmission rates between the groups.

Conclusions:

• Despite initial differences in hospitalization duration and infection rates, major clinical outcomes for ASUC are comparable between new-onset and established UC patients.
• Independent predictors of adverse outcomes included active smoking, extensive colitis, need for rescue therapy, and severe bacterial infections, not the new-onset disease status.