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Medline ® Abstract for Reference 100

of 'Liver transplantation in adults: Overview of immunosuppression'

Post-transplant lymphoproliferative disorders following liver transplantation: incidence, risk factors and survival.
Kremers WK, Devarbhavi HC, Wiesner RH, Krom RA, Macon WR, Habermann TM
Am J Transplant. 2006;6(5 Pt 1):1017.
This study investigates retrospectively the incidence, risk factors and mortality of post-transplant lymphoproliferative disorders (PTLD) in adult orthotopic liver transplant (OLT) recipients. Among 1206 OLT recipients at a single institution, 37 developed a PTLD. The incidence of PTLD was highest during the first 18 months and relatively constant thereafter with cumulative incidence of 1.1% at 18 months and 4.7% at 15 years. The risk of PTLD was approximately 10% to 15% of the risk of death without PTLD. During the first 4 years following OLT, PTLD were predominantly related to EBV, while afterward most PTLD were EBV negative. Significant risk factors for PTLD in OLT recipients were transplantation for acute fulminant hepatitis during the first 18 months following OLT (HR=2.6, p=0.007), and rejection therapy with high-dose steroids (HR=4.5, p=0.049) and OKT3 (HR=3.9, p=0.016) during the previous year. Therapy with high-dose steroids or OKT3 (HR=3.6, p=0.0071) were also significant risk factors for PTLD-associated mortality. OLT recipients remain at risk for PTLD years after transplantation. The strong association of PTLD with rejection therapy and the worse post-PTLD prognosis among recipients of rejection therapy indicate the need to balance the risk of immunosuppression against the risk of PTLD following rejection treatment.
The William J. von Liebig Transplant Center, Mayo Clinic and Mayo Clinic College of Medicine, Rochester, MN 55905, USA. kremers.walter@mayo.edu