Capsule-endoscopic findings of ulcerative colitis patients.

BACKGROUND/AIMS Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by diffuse mucosal inflammation, traditionally regarded as being limited to the colorectum. Although several gastroduodenal lesions have also been reported recently in cases of UC, in general, small-bowel lesions in UC are believed to be extremely rare. The aim of this study was to examine the small bowel by capsule endoscopy in patients with UC. METHODS The study was conducted in 23 well-documented UC patients and 23 control volunteers. The frequency of small-bowel lesions, the number of small-bowel lesions per patient and the capsule endoscopy score were comparatively evaluated between the two groups. RESULTS Of the 23 UC patients, 13 (57%) showed small-bowel lesions, and 8 (35%) had erosions. There were significant differences in the frequency of the small-bowel lesions (p < 0.001) and erosions (p = 0.009) between the two groups. The capsule endoscopy score was correlated with the UC disease activity index (r = 0.718, p < 0.001). CONCLUSIONS This is the first capsule-endoscopic study conducted to examine the small-bowel involvement in UC patients as compared with the healthy volunteers. It was concluded that UC, a chronic inflammatory bowel disease, can also involve the small bowel.