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  • Title: Progression and prognosis of Crohn's colitis.
    Author: Makowiec F, Schmidtke C, Paczulla D, Lamberts R, Becker HD, Starlinger M.
    Journal: Z Gastroenterol; 1997 Jan; 35(1):7-14. PubMed ID: 9123962.
    Abstract:
    BACKGROUND: Inflammation refractory to medical treatment frequently characterizes the course of Crohn's colitis, often leading to colectomy and need for a stoma. The influence of disease extent within the colon on prognosis and disease progress over time has not been studied so far. AIMS: We evaluated the disease progress and the long-term outcome in 323 patients with Crohn's colitis followed-up for a mean of 9.8 years. METHODS: The charts were analyzed retrospectively, the mean number of documented examinations was 18.5 per patient. The influence of disease pattern, rectal disease and perianal fistulas on the long-term outcome was evaluated using actuarial methods and independent factor analysis. RESULTS: The probabilities of having pancolitis or rectal disease were 77.1% and 78.8% after 15 years, respectively, and higher in patients with initially left-sided or segmental colitis compared with right-sided colitis. The chance of having perianal fistulas was 43.3% after 15 years. The risk of undergoing resectional colonic surgery was 62.2% after 15 years and higher in the presence of right-sided colitis. The cumulative risk of colectomy was 18.2% after 15 years and higher in patients with pancolitis, left-sided colitis or in the presence of perianal fistulas. The 15-year probabilities of proctectomy (12%) and of having a temporary stoma (21%) were only influenced by the presence of perianal fistulas but not by rectal disease or pattern of colitis. CONCLUSIONS: Most patients with colonic Crohn's disease will eventually have pancolitis but only 20% of them will loose the colon. The proctectomy rate is low despite a high frequency of rectal disease. Perianal fistulas and the presence of total or left-sided colonic involvement are adverse risk factors with regard to preservation of colonic length.
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