ATC Abstracts

American Transplant Congress abstracts

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Articles tagged "Biopsy"

  • 2020 American Transplant Congress

    Automatic Quantification of Interstitial Fibrosis in Renal Allograft

    J. Hogan1, J. Vizcarra2, M. A. Tageldin2, L. A. Cooper3, D. A. Gutman2, A. B. Farris4

    1Transplant Research Center, Department of Surgery, Emory University, Atlanta, GA, 2Computer Science Department, Emory University, Atlanta, GA, 3Pathology Department, Northwestern University, Evanston, IL, 4Pathology Department, Emory University, Atlanta, GA

    *Purpose: Renal allografts are typically assessed by pathologists using the Banff classification with known interobserver variability. We previously demonstrated the utility of image analysis in…
  • 2020 American Transplant Congress

    Five Year Patient Important Outcomes of Treated Acute Rejections Diagnosed with Protocol and Clinical Biopsy after Pancreas Transplant Alone for Type 1 Diabetes

    Y. C. Kudva, S. R. Rizvi, R. Kaur, B. H. Smith, S. Batthula, P. G. Dean, A. Kukla, W. K. Kremers, M. D. Stegall

    Mayo Clinic, Rochester, MN

    *Purpose: STUDY PURPOSE: Acute rejection (AR) after Pancreas Transplant alone (PTA) continues to be a significant morbidity. We compared the outcomes of PTA recipients treated…
  • 2020 American Transplant Congress

    Low Diagnostic Yield of Protocol Allograft Biopsy Performed During DGF in Deceased Donor Kidney Transplant Recipients Treated with Induction and Standard-Dose CNI-Based Maintenance

    E. Favi1, A. James2, M. Ferraresso1, R. Cacciola3

    1Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy, 2Renal Transplantation, Royal London Hospital, London, United Kingdom, 3HBP and Transplant Unit, Tor Vergata University, Rome, Italy

    *Purpose: DGF after kidney transplantation (KTx) has been associated with an increased risk of rejection. For this reason, clinical guideline recommends weekly allograft biospy (Bx)…
  • 2020 American Transplant Congress

    Routine Human Renal Allograft Biopsies Analyzed for mRNA Content with a Novel Nanostring mRNA Human Organ Transplant (HOT) Panel

    I. Rosales1, R. Smith1, E. Acheampong1, T. Kawai1, T. Tsuji2, K. Hotta3, R. Colvin1

    1Massachusetts General Hospital, Boston, MA, 2Sapporo City General Hospital, Sapporo, Japan, 3Hokkaido University Hospital, Sapporo, Japan

    *Purpose: In 2019 a Banff Working Group and Nanostring Technologies developed a panel of 770 mRNA probes for assessment of human organ allografts, based on…
  • 2020 American Transplant Congress

    Ion AmpliSeq RNA Expression Panel Evaluated by Next-Generation Sequencing (NGS) Can Detect Genes in Human Formalin-Fixed Paraffin-Embedded Kidney Biopsies to Predict T Cell and Antibody Mediated Rejection in Renal Allografts

    P. Ruiz1, E. Margolles-Clark1, G. Guerra2, A. Mattiazzi2, M. Ortigosa-Goggins2, G. Ciancio1, L. Chen1, G. Burke1

    1Surgery, University of Miami, Miami, FL, 2University of Miami, Miami, FL

    *Purpose: Optimization of effective anti-rejection therapies to prevent allograft rejection and to minimize drug toxicity may be aided by utilizing in situ biomarkers for detection…
  • 2020 American Transplant Congress

    Molecular Diagnosis and Risk Prediction in BK Virus Nephropathy: Discovery and Multicenter Validation of Novel Intragraft Gene Expression Signatures

    B. Adam1, Z. Kikic2, Y. Bouatou3, J. Gueguen3, B. Robin3, G. Reid1, H. Regele2, M. Rabant3, A. Loupy3, M. Mengel1

    1University of Alberta, Edmonton, AB, Canada, 2Medical University of Vienna, Vienna, Austria, 3Paris Transplant Group, Paris, France

    *Purpose: Novel tools are needed to improve diagnosis and risk prediction in BK virus nephropathy (BKVN). This study aimed to assess the utility of intragraft…
  • 2020 American Transplant Congress

    Thymoglobulin Dose and Incidence of Biopsy Proven Acute Rejections in the Early Post Transplant Period

    K. Shimko, K. Schonder, D. Jorgensen, K. Kalra, A. Cherukuri, R. Mehta, I. Melgarejo, P. Sood, S. Hariharan, R. Mehta

    University of Pittsburgh Medical Center, Pittsburgh, PA

    *Purpose: Optimal dosing of thymoglobulin (ATG) for induction has not been well defined. Our protocol aims for 5-6mg/kg cumulative dose divided over 4 doses. However,…
  • 2020 American Transplant Congress

    Natural Course of Borderline Changes in Kidney Allografts: A MMDx Study

    P. Hruba1, K. S. Madill-Thomsen2, M. Mackova2, J. Maluskova3, E. Honsova3, J. Slatinska4, P. F. Halloran2, O. Viklicky4

    1Transplant Laboratory, IKEM, Prague, Czech Republic, 2ATAGC, University of Alberta, Edmonton, AB, Canada, 3Department of Pathology, IKEM, Prague, Czech Republic, 4Department of Nephrology, IKEM, Prague, Czech Republic

    *Purpose: Molecular assessment of kidney allograft biopsies with Banff borderline changes (BL) category has showed only 30% of rejection phenotype in various post-transplant follow-up and…
  • 2020 American Transplant Congress

    Impact of Variation in Histological Assessments and Their Impact on Clinical Trial Enrollment and Endpoints – Preliminary Report of The Gen04 Study

    W. Park1, M. Ryan2, L. Herrera Hernandez3, M. Smith2, X. Geiger4, T. Sandor5, L. Cornell3, M. Stegall1

    1Transplant Center, Mayo Clinic, Rochester, MN, 2Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ, 3Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 4Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, 5Pathology, University of Szegad, Szegad, Hungary

    *Purpose: Renal allograft histology is often used as inclusion criteria for clinical trials. This includes Gen04, which is an NIH sponsored multi-center clinical trial involving…
  • 2020 American Transplant Congress

    Machine Learning to Predict Deceased Donor Kidney Biopsy Results

    C. Martinez, A. Placona

    United Network for Organ Sharing, Richmond, VA

    *Purpose: Despite inconclusive evidence that kidney biopsy findings are associated with graft outcomes, biopsies are often cited as a key factor on whether to accept…
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