Articles tagged "Biopsy"

2020 American Transplant Congress
Calibration of Donor-Derived Cell-Free DNA Criteria for Rejection with Molecular Diagnoses of Kidney Transplant Biopsies
I. Moinuddin¹, D. Kumar¹, L. Kamal¹, A. King¹, L. Kang¹, M. Levy¹, S. Bobba¹, D. Massey¹, P. Halloran², G. Gupta¹
¹Virginia Commonwealth University, Richmond, VA, ²Alberta Transplant Genomics Applied Centre, Edmonton, AB, Canada
*Purpose: Traditional microscopic histopathologic assessment (HDx) can be prone to error due to inter-observer variability as well as the non-specificity of some histologic lesions. Donor-derived…
2020 American Transplant Congress
Glomerulitis in One-Hour Biopsy after ABO-Blood Type Incompatible Kidney Transplantation Sensitively Suggests Occurrence of Antibody-Mediated Rejection
D. Iwami, K. Hotta, N. Iwahara, N. Shinohara
Renal and Genitourinary Surgery, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
*Purpose: Antibody-mediated rejection (ABMR) after ABO-blood type-incompatible kidney transplantation (ABOi-KTx) can affect transplant outcome even lead to allograft loss unless promptly diagnosed and adequately treated.…
2020 American Transplant Congress
Yield and Utility of Surveillance Kidney Biopsies in Pediatric Kidney Transplant Recipients at Various Time Points Post-Transplant
A. Landsberg¹, M. Riazy², T. Blydt-Hansen¹
¹Nephrology, BC Children's Hospital, Vancouver, BC, Canada, ²Pathology and Laboratory Medicine, St. Paul's Hospital, Vancouver, BC, Canada
*Purpose: There lacks consensus regarding the appropriate timing of routine surveillance biopsies (SB) for pediatric kidney transplant recipients. We evaluated the yield of positive biopsy…
2020 American Transplant Congress
Avoiding Surveillance Biopsy: How? When? Now!
A. Ang¹, C. Schieve², S. Rose², C. Kew¹, M. R. First², R. B. Mannon¹
¹School of Medicine, University of Alabama, Birmingham, Birmingham, AL, ²Transplant Genomics Inc., Mansfield, MA
*Purpose: The TruGraf™ blood test measures a specific gene expression signature in the peripheral blood mononuclear cells to enable noninvasive serial assessment of kidney transplant…
2020 American Transplant Congress
Machine Learning to Predict Deceased Donor Liver Biopsy Results
C. Martinez, A. Placona
United Network for Organ Sharing, Richmond, VA
*Purpose: Biopsies are often cited as a key factor on whether to accept a deceased liver offer. Motivated by the influential role of biopsy findings…
2020 American Transplant Congress
Validation of Prognostic Index for Allograft Outcome in Kidney Transplant Recipients with Transplant Glomerulopathy
M. Talwar¹, V. Balaraman¹, A. Bhalla¹, O. Cseprekal², M. Yazawa¹, P. S. Podila³, A. Azhar¹, L. N. Cossey⁴, J. D. Eason¹, M. Z. Molnar¹
¹James D. Eason Transplant Institute, Methodist University Hospital, Memphis, TN, ²Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary, ³Faith & Health Division, Methodist Le Bonheur Healthcare, Memphis, TN, ⁴Arkanalabs, Little Rock, AR
*Purpose: Kidney transplant recipients with Transplant Glomerulopathy (TG) have very poor allograft survival compared to those without TG. The objective of this research was to…
2020 American Transplant Congress
Sex-Dependent Resistance to Ischemia-Reperfusion Injury in Mouse and Human Liver Transplantation
S. Kageyama, H. Kojima, K. Kadono, H. Hirao, K. J. Dery, S. Younan, T. Ito, F. M. Kaldas, R. W. Busuttil, J. W. Kupiec-Weglinski
Surgery, Dumont-UCLA Transplant Center, Los Angeles, CA
*Purpose: Ischemia-reperfusion injury (IRI) is a major risk factor for early allograft dysfunction and rejection in orthotopic liver transplantation (OLT). The influence of sex on…
2020 American Transplant Congress
Molecular Profiles of Injury in Heart Transplant Allograft: Relationship to Rejection, Ejection Fraction, and Survival
P. Halloran¹, J. Reeve², &. the INTERHEART Study Group³
¹University of Alberta, Edmonton, AB, Canada, ²Alberta Transplant Applied Genomics Centre, Edmonton, AB, Canada, ³., ., AB, Canada
*Purpose: In previous studies we used microarray analysis of gene expression to identify rejection in heart transplant endomyocardial biopsies, and found that this also revealed…
2020 American Transplant Congress
Does Transplantation of Hepatitis C Infected Kidneys Into Uninfected Recipients Cause Hepatitis C-Associated Kidney Injury?
R. H. Naik, S. Shawar, R. C. Forbes, H. Schaefer, D. Shaffer, M. Rossi, V. Imperio, B. P. Concepcion, M. Kapp
Vanderbilt University Medical Center, Nashville, TN
*Purpose: With increasing utilization of Hepatitis C infected (HCV+) kidneys for transplantation into uninfected (HCV-) recipients, there is concern for the development of HCV-associated kidney…
2020 American Transplant Congress
CD38 Antibody Daratumumab for the Treatment of Chronic Antibody-Mediated Kidney Allograft Rejection
K. Doberer¹, J. Kläger², G. A. Gualdoni¹, K. Mayer¹, F. Eskandary¹, H. Agis³, T. Reiter¹, R. Reindl-Schwaighofer¹, M. Wahrmann¹, G. Cohen¹, H. Haslacher⁴, G. Bond¹, I. Simonitsch-Klupp⁵, I. Farkash⁶, P. Halloran⁷, G. A. Böhmig¹
¹Department of Medicine III, Medical University of Vienna, Vienna, Austria, ²Dept. of Clin. Pathology, Medical University of Vienna, Vienna, Austria, ³Department of Medicine I, Medical University of Vienna, Vienna, Austria, ⁴Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria, ⁵Department of Pathology, Medical University of Vienna, Vienna, Austria, ⁶Dept. of Pathology, University of Michigan, Ann Arbor, MI, ⁷Alberta Transplant Applied Genomics Centre, ATAGC, University of Alberta, Edmonton, AB, Canada
*Purpose: Late antibody-mediated rejection (ABMR) is a major cause of transplant failure. Potential therapeutic targets are plasma cells (PC) and natural killer (NK) cells expressing…