Abstract
BackgroundAlthough accumulating studies in Japan show that cytapheresis (CAP) therapy is safe and effective for the induction of remission of moderate or severe ulcerative colitis (UC), the long-term prognosis of UC patients treated with CAP is unknown. The aim of this study was to determine the long-term prognosis of UC patients treated with CAP. MethodsNinety patients treated previously with CAP and followed for more than 3years were evaluated. The rates of operation, readmission, and use or dose-up of corticosteroid were analyzed as long-term prognosis. ResultsFollowing the first course of CAP treatment, 64% of patients showed clinical improvement (>4-point decrease in the clinical activity index (CAI)), and 49% of patients achieved clinical remission (CAI ≤4). Longer disease duration and lower age at the first CAP treatment correlated significantly with the therapeutic effects of CAP (p=0.003 and 0.035, respectively). The rates of operation and readmission were significantly lower in patients who showed previous clinical effects of CAP than in those who did not respond to CAP. The rates of operation and readmission were also significantly lower in patients whose treatment was combined with immunomodulators after the initiation of CAP than in patients who did not use immunomodulators. Importantly, the second course of CAP was also effective in most of the patients who showed a clinical response to the first CAP. ConclusionsPatients who achieve remission after the first CAP therapy may have a good long-term prognosis and a good response to a second CAP therapy even after relapse.
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