Publications by authors named "George Vincent Mazariegos"

Article Synopsis
  • * Strong recommendations include reducing immunosuppression as an initial management step and using the anti-CD20 monoclonal antibody (rituximab), as well as chemotherapy in specific cases.
  • * There is a lack of large randomized phase III trials for treating PTLD in pediatrics, leading to reliance on clinical experience, and the report emphasizes the need for future research on this topic.
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Article Synopsis
  • The International Pediatric Transplant Association held a conference to create guidelines for managing post-transplant lymphoproliferative disorders (PTLD) in children, focusing on how to use biomarkers like Epstein-Barr virus (EBV) levels for patient care.
  • The group recommends using "EBV DNAemia" for measuring EBV DNA in blood and advises caution when comparing results from different labs. They concluded both whole blood and plasma can be used for testing, depending on the clinical situation.
  • It is suggested that quantitative EBV DNAemia testing can help identify children at risk for PTLD, especially those who were EBV negative before their transplant, but overall routine surveillance is not recommended for
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Background: Operational tolerance after retransplantation of the intestine has never been reported.

Purpose: To two recently described intestine transplant recipients with operational tolerance, we now add a third.

Methods: Review of case record and immunological testing to confirm donor-specific hyporesponsiveness in multiple immune cell compartments.

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The International Pediatric Transplant Association (IPTA) convened an expert consensus conference to assess current evidence and develop recommendations for various aspects of care relating to post-transplant lymphoproliferative disorder after solid organ transplantation in children. In this report from the Prevention Working Group, we reviewed the existing literature regarding immunoprophylaxis and chemoprophylaxis, and pre-emptive strategies. While the group made a strong recommendation for pre-emptive reduction of immunosuppression at the time of EBV DNAemia (low to moderate evidence), no recommendations for use could be made for any prophylactic strategy or alternate pre-emptive strategy, largely due to insufficient or conflicting evidence.

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Background: Split liver transplantation (SLT) is a strategy to address organ shortage, but is a technically more demanding procedure than whole graft liver transplantation (LT). We aimed to determine the outcomes following SLT in adult recipients as well as to highlight the impact that having a pediatric LT program has on SLT implementation.

Methods: All SLTs conducted at a single-center from 2010 to 2019 were identified.

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