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  • Title: A Scheduled Program of Molecular Screening for Epstein-Barr Virus Decreases the Incidence of Post-transplantation Lymphoproliferative Disease in Pediatric Liver Transplantation.
    Author: Soriano-López DP, Alcántar-Fierros JM, Hernández-Plata JA, González-Jorge AL, Velázquez-Ramos S, Flores-Hernández MA, Fuentes V, Castañeda P, Nieto J, Sánchez JL, López B, Valencia-Mayoral P, Varela-Fascinetto G.
    Journal: Transplant Proc; 2016 Mar; 48(2):654-7. PubMed ID: 27110023.
    Abstract:
    This is a cohort, retrospective, comparative study of all liver transplant recipients from a single center, from May 1998 to July 2015. Patients were divided into two groups according to the type of Epstein-Barr viral load monitoring. For group I (1998-2007), polymerase chain reaction (PCR) was not available or it was only qualitative with limited access. For group II (2008-2015), we used periodically scheduled quantitative PCR in plasma and leukocytes, with aggressive tapering of immunosuppression as soon as viral replication was detected. Ninety-eight recipients were included, 41 (41.8%) were Epstein-Barr virus (EBV) - seronegative before liver transplantation (LT). EBV replication was confirmed in 74 patients (75.5%), being more frequent in seronegative (87.8%) than seropositive patients (66.6%). Eight recipients (8.1%) developed post-transplantation lymphoproliferative disorder (PTLD) on average at 14.3 months post-LT, seven of eight were <3 years at LT, four of eight were D+/R- for EBV, and all had post-LT EBV replication confirmed by PCR. PTLD was classified as lymphoma (n = 4), polymorphic polyclonal (n = 3), and lymphoid hyperplasia (n = 1). Five patients died, and three cleared PTLD after immunosuppression tapering or interruption. There were no significant differences in the etiology, age at LT (5.6 vs. 7.3 years, P = .069), patients <4 years (53.2% vs. 35.3%, P = .103), or EBV seronegative recipients (44.7% vs. 37.3%, P = .54); however, the incidence of PTLD decreased from 14.9% to 1.9% (P = .026), and graft rejection from 51.1% to 29.4% (P = .039). One- and 5-year patient survival rates were 94.7% and 85%, respectively, with no differences between groups. This strategy dramatically decreased the incidence of PTLD (14.9% vs. 1.9%), without increasing the incidence of rejection; therefore, we recommend that it should be used in the follow-up of all pediatric LT recipients.
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