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American Transplant Congress abstracts

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Articles tagged "Biopsy"

  • 2022 American Transplant Congress

    Association Between Allograft Gene Expression and Acute Cellular Rejection Grade in Heart Transplant Recipients

    A. Kao1, K. Haffey2, K. T. Gondi3, J. Linard2, C. Knutson2, K. Morgan2, L. Teterina2, S. Williams2, K. Oreschak4, H. Zhang4

    1St. Luke's Health System Kansas City Mid America Heart Institute, Kansas City, MO, 2St. Luke's, Kansas City, MO, 3University of Michigan, Ann Arbor, MI, 4CareDx, South San Francisco, CA

    *Purpose: Endomyocardial biopsy (EMB) remains the gold standard in acute rejection (AR) surveillance in heart transplantation (HT) despite interpretation subjectivity and low concordance rates between…
  • 2022 American Transplant Congress

    Three-Way Comparison of Central DSA, %dd-cf DNA, and Molecular Biopsy Findings in the Trifecta Study

    P. F. Halloran1, L. G. Hidalgo2, Z. Demko3, A. Prewett3, J. Reeve1, C. Lawrence4, D. Lowe4, P. Billings3, .. and the Trifecta Investigators5

    1Alberta Transplant Applied Genomics Centre, Edmonton AB, AB, Canada, 2University of Wisconsin, Madison, WI, 3Natera Inc., San Carlos, CA, 4One Lambda Inc., West Hills, CA, 5., ., AB, Canada

    *Purpose: Trifecta (ClinicalTrials.gov #NCT04239703) is a prospective, IRB-approved, consented study of the relationships among three central tests in kidney transplant indication biopsies: molecular biopsy diagnoses…
  • 2022 American Transplant Congress

    Clinical Stratification of Pediatric Liver Transplant Recipients 4-5 Years Post-Transplant: 1St Step Towards Personalized Management

    W. Dixon1, E. R. Perito1, M. Tavakol1, J. Bucuvalas2, S. Feng1

    1University of California, San Francisco, San Francisco, CA, 2Mount Sinai Kravis Children's Hospital and Recanati/Miller Transplantation Institute, Mount Sinai Health System, New York, NY

    *Purpose: Recent surveillance biopsy studies strongly associate high normal ALT (>35U/L) with inflammatory histopathology and low normal ALT (15yrs (n=13; p=0.0006), chronic rejection (CR) diagnosis…
  • 2022 American Transplant Congress

    Development and Validation of an Integrative DD-CFDNA System to Predict Allograft Rejection: A Population Based Study

    O. Aubert, R. Brousse, J. Gueguen, M. Racape, C. Lefaucheur, A. Loupy

    Paris Translational Center for Organ Transplantation, Paris, France

    *Purpose: Post-transplantation patient care requires development and validation of non-invasive biomarkers to improve allograft monitoring and prevention from unnecessary and costly biopsies. Reports have suggested…
  • 2022 American Transplant Congress

    Can Fibroscan Evaluation Of A Liver Predict Transplantability As Accurately As A Biopsy?

    S. J. Sander1, M. Moncure2

    1Organ Procurement, Midwest Transplant Network, Westwood, KS, 2Midwest Transplant Network, Westwood, KS

    *Purpose: Liver transplants are essential procedures that can impact a patient with chronic liver disease’s overall survival. Historically liver biopsies are the gold standard in…
  • 2021 American Transplant Congress

    Development of Diagnosis Method of Acute Graft Rejection After Kidney Transplantation Using Metabolome Analysis by Liquid Biopsy Approach

    H. Iwamoto1, M. Sugimoto2, O. Konno1, I. Akashi3, M. Okihara1, Y. Kihara1, T. Ueno1

    1Kidney Transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, Tokyo, Japan, 2Research and Development Center for Minimally Invasive and Preemptive Medicine, Institute of Medi, Tokyo Medical University, Tokyo, Japan, 3Kidney transplantation Surgery, Tokyo Medical University, Hachioji Medical Center, Tokyo, Japan

    *Purpose: Presently, a definitive diagnosis of organ dysfunction after transplantation (such as acute rejection) is dependent on conventional histopathological evaluation using an invasive biopsy procedure…
  • 2021 American Transplant Congress

    Covid-19 in a Kidney Transplant Patient Associated with Collapsing Glomerulopathy

    W. Hninn, M. Merzkani, H. Murad, A. Malone, A. Java, G. Rajashekar, R. Delos Santos, T. Alhamad

    Washington University School of Medicine, St. Louis, MO

    *Purpose: Coronavirus- 19 is a novel virus with various clinical presentations ranging from a cold to severe acute respiratory syndrome. However, little is known about…
  • 2021 American Transplant Congress

    Inflammation in Scarred Cortex (i-IFTA) is Significantly Associated with T Cell-mediated Rejection (TCMR), but Not Antibody-mediated Rejection (ABMR), in Renal Allograft Biopsies (Bx)

    H. Zhang

    Transplant Immunology Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA

    *Purpose: I-IFTA in renal allograft Bx has been found to be associated with decreased death-censored graft survival. Moderate to severe i-IFTA (2 or 3) is…
  • 2021 American Transplant Congress

    Cytomegalovirus Nephritis: Epidemiology and Outcomes of an Uncommon Diagnosis

    K. J. Swanson, A. Djamali, A. Ghaffar, F. Aziz, N. Garg, M. Mohamed, D. A. Mandelbrot, M. Jorgensen, S. Parajuli

    Division of Nephrology, University of Wisconsin-Madison, Madison, WI

    *Purpose: Cytomegalovirus (CMV) nephritis is an uncommon end-organ manifestation of CMV disease. Due to this, associated outcomes have not been completely elucidated.*Methods: This was a…
  • 2021 American Transplant Congress

    Late Subclinical Rejection and Borderline Rejection in Kidney Transplant Patients is Associated with Increased Incidence of Subsequent Clinical Rejections

    V. Viswanathan1, I. Melgarejo2, C. Puttarajappa2, P. Sood2, M. Molinari2, S. Hariharan2, C. Wu2, A. Sharma2, N. Shah2, R. Mehta2

    1Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh Medical Center, Pittsburgh, PA, 2Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, PA

    *Purpose: The outcomes of inflammatory changes noted in late surveillance biopsies (1 year) is unclear.*Methods: Patients transplanted (live donor and deceased donor) at our center…
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