Value of upper endoscopic biopsies in predicting medical refractoriness in pediatric patients with ulcerative colitis

Refractory ulcerative colitis (UC) occurs in patients who experience a severe disease manifestation that is unresponsive to medical therapy. The assessment of upper endoscopic microscopic findings and its correlation with refractory UC has not been fully studied in pediatric patients, and is the focus of this study. Medical records of UC patients treated at a tertiary pediatric center between 2000 and 2014 were reviewed. Endoscopic biopsies of the upper gastrointestinal tract of patients meeting a priori inclusion criteria were compared between refractory UC patients and non-refractory UC patients for active inflammation.

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