Outcome of primary sclerosing cholangitis. Analysis of long-term observation of 38 patients

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Abstract
The natural history and prognostic factors of primary sclerosing cholangitis (PSC) are poorly defined. We reviewed out experience with PSC to determine its natural history and whether any factors on presentation or during follow-up were indicative of a favorable or unfavorable prognosis. Thirty-eight patients were followed up for 75.1 .+-. 58.7 months; 17 (45%) had a poor outcome, defined as the occurrence of death (11 patients [29%]), variceal hemorrhage, hepatic encephalopathy, or hepatic transplantation. We found the following; (1) the rate of progression of PSC is highly variable; (2) an asymptomatic presentation may not indicate a more favorable outcome or prolonged survival; (3) a serum bilirubin value of four times or more the upper limit of normal, particularly if sustained so as to exclude a reversible cause, is indicative of late-stage disease with a likelihood of subsequent poor outcome and death; and (4) variceal hemorrhage may occur before the terminal stage of the disease.