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Real-World Endoscopic and Histologic Outcomes in Ulcerative Colitis Patients: A Retrospective Cohort Study
Monica State1,2, Paul Balanescu2, Theodor Voiosu1,2
1Gastroenterology Department, Colentina Clinical Hospital, 020125 Bucharest, Romania.
Biomedicines
|July 29, 2023
Summary
Histologic remission in ulcerative colitis is low in real-world settings. While quality of life and inflammatory markers show associations, they don't reliably predict deeper healing, suggesting a role for lymphocyte-targeted therapies.
Area of Science:
- Gastroenterology
- Immunology
- Clinical Medicine
Background:
- Histologic activity is an emerging goal in ulcerative colitis (UC) management, potentially serving as an adjunct to mucosal healing.
- This study investigates rates of mucosal and histologic remission and their predictors in UC patients.
Purpose of the Study:
- To determine the rates of mucosal and histologic remission in a cohort of ulcerative colitis patients.
- To identify potential predictors of mucosal and histologic healing.
- To explore the role of lymphocyte populations in ulcerative colitis pathogenesis.
Main Methods:
- Retrospective analysis of a prospective cohort of UC patients.
- Mucosal healing defined as Mayo endoscopic score = 0.
- Assessment of clinical remission, SIBDQ scores, CRP levels, corticotherapy use, and intraepithelial lymphocyte (IEL) counts (CD8+ and CD4+).
Main Results:
- Mucosal healing was observed in 26% of study visits, with 66% of those achieving histologic remission.
- Univariate analysis suggested associations between mucosal healing and sustained clinical remission, SIBDQ scores, CRP levels, and absence of corticotherapy.
- Logistic regression revealed no significant predictors for mucosal or histologic healing; however, CD8+ IELs were significantly higher than CD4+ IELs during both active disease and mucosal healing.
Conclusions:
- Mucosal and histologic remission rates are low in clinical practice.
- While quality of life and inflammatory markers correlate with healing, they are not reliable predictors of histologic remission.
- Increased CD8+ lymphocyte presence suggests a significant role in UC pathogenesis and potential therapeutic targets.
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