Articles tagged "Rejection"

2021 American Transplant Congress
DSA is Associated with Molecular Changes in Many Hearts with Minor Abnormalities but Not Diagnosed as Antibody-Mediated Rejection
P. Halloran¹, K. S. Madill-Thomsen¹, &. the INTERHEART Study Group²
¹Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada, ²., ., AB, Canada
*Purpose: We previously developed a microarray-based diagnostic system (MMDx) for heart transplant endomyocardial biopsies, measuring gene expression and interpreting antibody-mediated and T cell-mediated rejection (ABMR,…
2021 American Transplant Congress
Reducing Rejection in Pediatric Kidney Transplantation: The Improving Renal Outcomes Collaborative (iroc)
C. Varnell¹, A. Warmin¹, G. Barletta², C. Belsha³, L. Harshman⁴, D. Kershaw⁵, C. Pruette⁶, S. Ranabothu⁷, M. Seifert⁸, P. Singer⁹, M. Yanik¹⁰, K. Rich¹, A. Modi¹, D. Hooper¹
¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ²Phoenix Children’s Hospital, University of Arizona, Phoenix, AZ, ³SSM Health Cardinal Glennon Children's Hospital, St Louis, MO, ⁴University of Iowa Stead Family Children’s Hospital, Iowa City, IA, ⁵C.S. Mott Children’s Hospital, Ann Arbor, MI, ⁶Johns Hopkins University School of Medicine, Baltimore, MD, ⁷Arkansas Children’s Hospital, Little Rock, AR, ⁸University of Alabama at Birmingham, Children’s of Alabama, Birmingham, AL, ⁹Cohen Children's Hospital, Brooklyn, NY, ¹⁰Levine Children's Hospital, Charlotte, NC
*Purpose: To study the effect of implementing a Medication Adherence Promotion System (MAPS) on acute rejection (AR) rates in 9 pediatric kidney transplant (KT) programs.*Methods:…
2021 American Transplant Congress
Degree of T Cell Infiltration Predicts Treatment Response in Pediatric Liver Late Acute Cellular Rejection
M. Rogers, G. Begum, Q. Sun, A. Peters
Cincinnati Children's Hospital Medical Center, Cincinnati, OH
*Purpose: Late acute cellular rejection (ACR) occurs >6mo post-liver transplant and is associated with chronic rejection and allograft loss. Currently, no diagnostic features predict ACR…
2021 American Transplant Congress
Relationship Between %dd-cfDNA, MMDx Molecular Diagnoses, and Donor-specific Antibody in the Trifecta Study
P. F. Halloran¹, L. G. Hildago², J. Reeve¹, Z. Demko³, A. Prewett³, P. Billings³, J. Truong⁴, P. Vander Horn⁴, &. Trifecta Study Group⁵
¹Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada, ²University of Wisconsin, Madison, WI, ³Natera Inc., San Carlos, CA, ⁴One Lambda Inc., West Hills, CA, ⁵., ., AB, Canada
*Purpose: The Trifecta Study is a prospective multicenter investigator-initiated trial to evaluate the relationship between %dd-cfDNA and molecular biopsy findings at the time an indication…
2021 American Transplant Congress
Longitudinal Surveillance, Relative Change Value (RCV) Improve Diagnostic Test Accuracy (DTA) of Donor-Derived Cell Free DNA (dd-cfDNA)
S. Anand, F. Lopez-Verdugo, J. Sanchez-Garcia, L. Dong, M. Fife, J. Krong, D. Morris, T. Srinivas
Intermountain Medical Center, Murray, UT
*Purpose: dd-cfDNA, an injury biomarker in kidney transplant (KTx), is emerging as a trigger for biopsy (Bx) and superior to the traditional trigger of change…
2021 American Transplant Congress
Is Subclinical Allograft Rejection by 2019 Banff Criteria Associated with Worse Kidney Allograft Outcomes? Comparison Between 2007 and 2019 Banff Criteria
M. T. Victor¹, S. Park², K. Guo¹, L. Zhao¹, J. Friedewald³
¹Feinberg School of Medicine, Northwestern University, Chicago, IL, ²Transplant Nephrology, Northwestern Univeristy, Chicago, IL, ³Transplant Nephrology, Northwestern University, Chicago, IL
*Purpose: We hypothesize that Subclinical Acute Rejection (SubAR) under the new Banff 2019 criteria will be more strongly associated with a 2-year composite endpoint (2Y-CCE)…
2021 American Transplant Congress
Role of Serial Donor Derived Cell-Free DNA Monitoring in Kidney Transplant Recipients
A. X. Wang, C. R. Lenihan
Nephrology, Stanford University School of Medicine, Palo Alto, CA
*Purpose: Donor derived cell-free DNA (dd cf-DNA; Allosure, CareDx) is increasingly employed for non-invasive kidney transplant monitoring. The goal of this study was 1) to…
2021 American Transplant Congress
Combined Impact of Pre-sensitization and Delayed Graft Function on Allograft Rejection in Deceased Donor Kidney Transplantation: A Nationwide Cohort Study
H. Lee¹, Y. Park¹, T. Ban², S. Song³, S. Song⁴, J. Yang⁵, C. Ahn⁵, C. Yang¹, B. Chung¹
¹Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s hospital, Seoul, Korea, Republic of, ²Division of Nephrology, Department of Internal Medicine, Eunpyeong St. Mary’s hospital, Seoul, Korea, Republic of, ³Organ Transplantation Center and Department of Internal Medicine, Pusan National University Hospital, Pusan, Korea, Republic of, ⁴Department of Surgery, Ewha Womans University Medical Center, Seoul, Korea, Republic of, ⁵Department of Nephrology, Seoul National University Hospital, Seoul, Korea, Republic of
*Purpose: The aim of this study is to investigate whether or not delayed graft function (DGF) and pre-transplant sensitization has a synergistic adverse effect on…
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…