Abstract
Patients with primary sclerosing cholangitis (PSC) constitute 5 to 15% of patients
listed for liver transplantation worldwide. Although post-transplant outcomes are
favorable, recurrent PSC (rPSC) occurs in an important subset of patients, with higher
prevalence rates reported with increasing time from transplant. Given its association
with poor graft outcomes and risk of retransplant, effort has been made to understand
rPSC, its pathophysiology, and risk factors. This review covers these facets of rPSC
and focuses on implicated risk factors including pretransplant recipient characteristics,
inflammatory bowel-disease-related factors, and donor-specific and transplant-specific
factors. Confirming a diagnosis of rPSC requires thoughtful consideration of alternative
etiologies so as to ensure confidence in diagnosis, management, subsequent risk assessment,
and counseling for patients. Unfortunately, no cure exists for rPSC; however, future
large-scale efforts are underway to better characterize the natural history of rPSC
and its associated risk factors with hopes of identifying potential key targets for
novel therapies.
Keywords
recurrent primary sclerosing cholangitis - posttransplant complications - inflammatory
bowel disease