ATC Abstracts

American Transplant Congress abstracts

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  • 2022 American Transplant Congress

    Pre-Vaccine Antibodies Against Seasonal Betacoronaviruses Are Associated with Decreased Antibody Response to SARS-CoV-2 mRNA Vaccination in Solid Organ Transplant Recipients

    A. Karaba1, W. Zhou1, T. Aytenfisu1, T. S. Johnston1, O. Akinde1, Y. Eby1, A. Abedon1, J. Alejo1, C. Qin1, J. Garonzik-Wang2, S. Klein1, J. Bailey1, A. Cox1, J. Blankson1, D. Segev1, A. Tobian1, W. Werbel1

    1Johns Hopkins University, Baltimore, MD, 2University of Wisconsin School of Medicine and Health, Madison, WI

    *Purpose: The impact of antigenic imprinting, when immune memory of one antigen influences the response to subsequent similar antigens, on the antibody response in solid…
  • 2022 American Transplant Congress

    Knowledge, Attitude, and Practices Regarding Covid-19 Among Solid Organ Transplant Patients at a Transplant Center in the United States: A Cross-Sectional Study

    L. Wang, H. Oduor, M. Abualfoul, P. Acharya, M. Pagadala

    Methodist Dallas Medical Center, Dallas, TX

    *Purpose: To evaluate the knowledge, attitude, and practices (KAP) of patients who have undergone kidney and/or liver solid organ transplants (SOTs) during the COVID-19 pandemic.*Methods:…
  • 2022 American Transplant Congress

    Seasonal Variation of Cytomegalovirus Infection in Kidney Transplant Recipients

    M. Jorgenson, B. Astor, C. Saddler, J. Smith, F. Aziz, D. Mandelbrot, N. Garg

    University of Wisconsin Health, Madison, WI

    *Purpose: Studies conducted in the northern United States found cytomegalovirus (CMV) disease after liver transplantation follows a seasonal pattern, with increased incidence in Fall and…
  • 2022 American Transplant Congress

    Utility of Protocol Pancreas Biopsies for De Novo Donor-Specific Antibodies

    S. Parajuli, D. Mandelbrot, J. Odorico

    University of Wisconsin, Madison, WI

    *Purpose: Donor-specific antibodies (DSA) against the human leukocyte antigens (HLA) can now be measured accurately and repetitively, and are routinely monitored post-transplant. In recipients of…
  • 2022 American Transplant Congress

    Results of Heart Transplantation from Donation After Circulatory Death (DCD) Donors Using Thoraco-Abdominal Normothermic Regional Perfusion (TA-NRP) Compared to Donation from Donation After Brain Death (DBD) Are Similar at One Year

    C. Gidea1, L. James2, D. E. Smith2, J. Carillo2, A. Reyentovich3, T. Saraon2, S. Katz2, S. Rao2, R. Goldberg2, B. Kadosh2, M. DiVita2, J. Cruz2, N. Sikand2, J. Ngai2, G. Piper2, N. Moazami2

    1New York University Langone Medical Center, New York, NY, 2NYU Langone Health, New York, NY, 3New York University Langone Health, New York, NY

    *Purpose: In the U.S., interest in heart transplantation organ donation from DCD is increasing. Several different approaches are being considered. We present our institutional experience…
  • 2022 American Transplant Congress

    Role of Urinary Biomarkers in RWE Clinical Paradigm

    W. Yazar1, R. Sarwal2, N. Titzler1, M. Sarwal1, S. Ghosh2

    1Nephrosant, Brisbane, CA, 2NephroSant, Brisbane, CA

    *Purpose: Due to heterogeneity observed in the kidney transplant population, it has been extremely challenging for traditional methods such as histopathology to predict graft outcomes.…
  • 2022 American Transplant Congress

    Impact of the High Baseline Anti-a/b Antibody Titer on the Clinical Outcomes in ABO-incompatible Living Donor Liver Transplantation

    J. Cho, B. Lee, H. Lee

    Surgery, Seoul National Bundang Hospital, Seongnam, Korea, Republic of

    *Purpose: Recently, advances in desensitization protocol have made ABO-incompatible (ABOi) living donor liver transplantation (LDLT) feasible option in the era of organ shortage. Although, multiple…
  • 2022 American Transplant Congress

    High Case Fatality Rate Among Fully Vaccinated Kidney Transplant Recipients with Breakthrough Covid-19 During the Delta Surge

    K. Vieira, E. Klein, A. Lerner, D. Farmakioits

    Rhode Island Hospital/Brown University, Providence, RI

    *Purpose: Organ transplant recipients (OTR) have worse outcomes from COVID-19 and weaker antibody responses to vaccination than do immunocompetent individuals. Data on clinical outcomes among…
  • 2022 American Transplant Congress

    Clinical Relevance of Absolute BK Polyoma Viral Load Kinetics in Patients with Biopsy Proven BK Polyomavirus Associated Nephropathy

    H. Omic1, J. P. Kläger1, H. Herkner1, S. W. Aberle1, H. Regele1, L. Weseslindtner1, T. A. Schrag1, G. Bond1, K. Hohenstein1, B. Watschinger1, J. Werzowa2, R. Strassl1, M. Eder1, Z. Kikic1

    1Medical University of Vienna, Vienna, Austria, 2Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria

    *Purpose: The absolute BK viral load is an important diagnostic surrogate for BK polyomavirus associated nephropathy (PyVAN) after renal transplant (KTX) and serial assessment of…
  • 2022 American Transplant Congress

    Evolution of Donor-Derived Cell-Free DNA During the First Week After Surgery Predicts Renal Function Recovery After Kidney Transplantation

    D. Cucchiari1, E. Cuadrado1, E. Gonzalez1, J. Puig1, M. Ramirez-Bajo1, P. Ventura-Aguiar1, I. Revuelta2, B. Bayès1, F. Diekmann1

    1Hospital Clínic de Barcelona, Barcelona, Spain, 2Hospital Clinic de Barcelona, Barcelona, Spain

    *Purpose: Donor-derived cell-free DNA (ddcfDNA) is usually employed starting from the second week after kidney transplantation (KT), as its earlier increase can be due to…
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