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  • Title: A re-evaluation of the risk factors for the recurrence of primary sclerosing cholangitis in liver allografts.
    Author: Alabraba E, Nightingale P, Gunson B, Hubscher S, Olliff S, Mirza D, Neuberger J.
    Journal: Liver Transpl; 2009 Mar; 15(3):330-40. PubMed ID: 19243003.
    Abstract:
    Previously, we have found that the absence of the colon after liver transplantation (LT) protects the patient from recurrent primary sclerosing cholangitis (rPSC). As our previous observation has not been confirmed in other series, we have reviewed our cohort of patients grafted for primary sclerosing cholangitis (PSC) with greater numbers and longer follow-up to reassess the rate, consequences, and risk factors for rPSC. We collected data on patients who underwent LT for PSC between January 1986 and April 2006. Data were collected for cytomegalovirus status, inflammatory bowel disease status, time of colectomy, type of colectomy, donor-recipient gender mismatch, recipient sex, extended donor criteria (EDC), and donor risk index. Accepted criteria were used to diagnose rPSC. Of a total of 230 consecutive adult patients, 61 (27%) underwent colectomy pre-/peri-LT, and 54 (23.5%) developed rPSC at a median of 4.6 (range, 0.5-12.9) years post-LT. A total of 263 deceased donor grafts were used, and 73 were EDC grafts. A diagnosis of rPSC was made in 61 of the 263 grafts (23%). The recurrence-free patient survival was significantly better (P < 0.05) in patients who underwent pre-/peri-LT colectomy and in those with non-EDC grafts. In conclusion, in this larger cohort of 230 patients and with longer follow-up of 82.5 (range, 0.0-238.6) months [in comparison with the previous report of 152 recipients with a follow-up of 52.8 (range, 1-146) months], we have shown that colectomy remains a significant risk factor for rPSC and that colectomy before and during initial LT for PSC confers a protective effect against rPSC in subsequent graft(s). Moreover, we have shown that EDC grafts are also a significant risk factor for rPSC.
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