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Scand J Gastroenterol. 2018 Oct 23:1-5. doi: 10.1080/00365521.2018.1524026. [Epub ahead of print]

Endoscopic progression of ulcerative proctitis to proximal disease. Can we identify predictors of progression?

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1
a Digestive Disease Department , General University Hospital of Valencia , Valencia , Spain.

Abstract

INTRODUCTION:

Ulcerative proctitis is a type of ulcerative colitis circumscribed to the rectum. Proximal progression rates of the disease have been reported as between 27% and 54%. Several predictive factors have been identified for its progression; however, none has been established as definitive.

MATERIAL AND METHODS:

Retrospective study of patients diagnosed with ulcerative proctitis with at least 12 months of follow-up. Patients diagnosed between January 1992 and March 2017. Variables were collected at the time of diagnosis and during the first year of follow-up. The extent of the progression was evaluated endoscopically during follow-up. The endoscopic progression rate was determined and possible risk factors related to this progression were evaluated.

RESULTS:

The analysis involved 137 patients. In 77 of the patients, we performed a second colonoscopy during follow-up to evaluate endoscopic progression. The average time before the second colonoscopy performed was 5 years (SD 3.9). Of the 77 patients, 32 (41.6%) presented proximal progression to the rectosigmoid junction. Logistic regression analysis showed a statistically significant association for progression in patients who had suffered one or more flares in the first year following diagnosis. Significant progression was also observed in those with the longest time of progression at the final colonoscopy.

CONCLUSIONS:

Ulcerative proctitis is not a stable disease over time. In addition, during the first year of the disease progression, it is possible to predict in which patients the disease will progress to more extensive forms.

KEYWORDS:

Ulcerative proctitis; extent of disease; prognostic risk factors; ulcerative colitis

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