Articles tagged "Rejection"

2021 American Transplant Congress
The Importance of Persistent and Recurrent T Cell Mediated Rejection in Tacrolimus Treated Renal Transplant Recipients
C. Rampersad¹, I. W. Gibson², D. N. Rush¹, D. Pochinco³, P. E. Birk⁴, A. Goldberg⁴, T. Blydt-Hansen⁵, M. Karpinski¹, J. Shaw¹, J. Ho¹, P. W. Nickerson¹, C. Wiebe¹
¹Department of Medicine, University of Manitoba, Winnipeg, MB, Canada, ²Department of Pathology, University of Manitoba, Winnipeg, MB, Canada, ³Shared Health Services Manitoba, Winnipeg, MB, Canada, ⁴Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB, Canada, ⁵Department of Pediatrics, University of British Columbia, Winnipeg, MB, Canada
*Purpose: Optimal follow-up after treatment for T-cell mediated rejection (TCMR) is not well-established. We sought to identify the prevalence and clinical associations of repeated TCMR…
2021 American Transplant Congress
Baseline Levels of Dd-cf Dna After Pancreas Transplantation: Using Dd-cfdna as an Indicator for Pancreas Rejection and Biopsy Avoidance
A. Yoo, I. Qian, A. Riedel, C. Cazac, A. Bartosic, J. S. Bromberg, J. Scalea
Department of Surgery, Division of Transplant, University of Maryland School of Medicine, Baltimore, MD
*Purpose: Donor-derived cell-free DNA (dd-cfDNA) testing, which has been previously validated for monitoring kidney transplant (KTx) rejection, may provide an alternative to pancreas biopsy that…
2021 American Transplant Congress
The Impact of Early Narcotic Administration on Intestinal Transplantation Survival at an Urban Medical Center
L. Maliekal¹, N. Beltran², Y. Muszkat², S. Nagai², S. Jafri²
¹School of Medicine, Wayne State University School of Medicine, Detroit, MI, ²Department of Gastroenterology, Henry Ford Hospital, Detroit, MI
*Purpose: The impact of early narcotic administration on intestinal transplant patients is not well understood, with current practice suggesting the avoidance of narcotics among transplant…
2021 American Transplant Congress
Influence of Induction Therapy and Antiretroviral Regimen on Outcomes in HIV Positive Renal Transplant Recipients
C. Rogers Marks¹, C. Durand², J. Hand³, M. Abidi⁴, M. Malinis⁵, B. Barnaba², H. Patel⁶, C. D. Alonso⁶
¹Massachussetts General Hospital, Boston, MA, ²Johns Hopkins Medical Center, Baltimore, MD, ³Ochsner Medical Center, New Orleans, LA, ⁴Univ. of Colorado, Aurora, CO, ⁵Yale, New Haven, CT, ⁶Beth Israel Deaconess Medical Center, Boston, MA
*Purpose: Transplantation of HIV+ individuals has become more common over the past decade with increasing data supporting good outcomes. Questions remain regarding the impact of…
2021 American Transplant Congress
Reassessing TCMR in Kidney Transplant Indication Biopsies: Emerging Evidence for Partial Exhaustion in Late TCMR
P. Halloran¹, J. Reeve¹, &. the INTERCOMEX Study Group²
¹Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada, ²., ., AB, Canada
*Purpose: We rederived the MMDx rejection archetypes in an expanded set of 1679 kidney transplant biopsies to add power and potentially define heterogeneity in TCMR.…
2021 American Transplant Congress
Single-Cell RNA-seq Identifies Intra-Graft Population Heterogeneity in Acute Heart Allograft Rejection in the Mouse
C. Wu¹, Y. Tang¹, X. Shi¹, X. He¹, X. Li²
¹The First Affiliated Hospital,Sun Yat-sen University, Guangzhou, China, ²Immunobiology & Transplant Sciences Houston Methodist Hospital, Houston, TX
*Purpose: Transplant rejection remains a major barrier to graft survival and involves a diversity of cell types. But the heterogeneity in a given cell type…
2021 American Transplant Congress
Athena – Effect of Primary Immunosuppression on Development of De Novo Donor Specific Antibodies within First Year After Kidney Transplantation
W. Arns¹, A. Philippe¹, V. Ditt¹, I. A. Hauser¹, F. Thaiss¹, C. Sommerer¹, B. Suwelack¹, A. Finkel², C. Schiedel², D. Dragun¹, B. Nashan¹
¹ATHENA, Study Group, Germany, ²Novartis Pharma GmbH, Nuremberg, Germany
*Purpose: The ATHENA trial [NCT01843348] investigated safety and efficacy of everolimus combined with cyclosporine A [EVR/CsA] or tacrolimus [EVR/TAC] vs. tacrolimus plus mycophenolic acid [MPA/TAC]…
2021 American Transplant Congress
Single Center Experience Comparing Two Clinically Available Donor Derived Cell Free DNA Tests
S. Bunnapradist¹, S. Lee², P. Homkrailas³, G. Danovitch³
¹UCLA, Los Angeles, CA, ²Pharmacy, David Geffen School of Medicine at UCLA, Los Angeles, CA, ³David Geffen School of Medicine at UCLA, Los Angeles, CA
*Purpose: Donor derived cell-free DNA (dd cf-DNA), this new technology allows for non-invasive monitoring of graft function. Two most commonly used assays are Prospera (Natera®,…
2021 American Transplant Congress
Torque Teno Virus Load Predicts Allograft Rejection but Not Viral Infection After Kidney Transplantation; A Cohort Joint Modelling Study
A. L. van Rijn¹, H. F. Wunderink², I. A. Sidorov¹, C. S. de Brouwer¹, A. C. Kroes¹, H. Putter³, A. P. de Vries⁴, J. I. Rotmans⁴, M. C. Feltkamp¹
¹Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands, ²Medical Microbiology, University Medical Center Utrecht, Utrecht, Netherlands, ³Medical Statistics, Leiden University Medical Center, Leiden, Netherlands, ⁴Internal Medicine, Leiden University Medical Center, Leiden, Netherlands
*Purpose: The main challenge of immunosuppressive therapy after solid organ transplantation is to find the optimal dose regimen, and prevent allograft rejection as well as…
2021 American Transplant Congress
Desensitization with Plasmapheresis and IV Immunoglobulin is Safe and Effective in Pra Positive Kidney Transplant Recipient Candidates in Covid-19 Pandemic Period
B. Sayin¹, A. Akdur², E. Karakaya², U. Musabak³, T. Colak¹, M. Haberal²
¹Department of Nephrology, Baskent University, Ankara, Turkey, ²Division of Transplantation, Department of General Surgery, Baskent University, Ankara, Turkey, ³Department of Immunology, Baskent University, Ankara, Turkey
*Purpose: High panel reactive antibody (PRA) levels may limit living-donor kidney transplantation (LDKT) according to increased risk of antibody mediated rejection. Desensitization may provide better…