Articles tagged "Non-invasive diagnosis"

2021 American Transplant Congress
Comparison of Next Generation Sequencing Donor-derived Cell Free DNA Assay Utilizing Whole Genome Sequencing
N. Singh¹, M. S. Naseer¹, D. Aultman², H. Shokouh-Amiri², G. Zibari²
¹Transplant, John C. McDonald Regional Transplant Center - Willis Knighton Health System, Shreveport, LA, ²Advanced Surgery, John C. McDonald Regional Transplant Center - Willis Knighton Health System, Shreveport, LA
*Purpose: Circulating donor-derived cell free DNA (dd-cfDNA) is a non-invasive biomarker of kidney allograft injury with a high negative predictive value for ruling out acute…
2021 American Transplant Congress
Use of Microbial Cell Free DNA Sequencing in Solid Organ Transplant Patients
S. Chang, P. Gaynor, A. Multani, O. E. Beaird, M. Carlson, S. Yang, O. Garner, J. Schaenman
University of California, Los Angeles, Los Angeles, CA
*Purpose: Microbial cell free DNA (cfDNA) sequencing has emerged as a new noninvasive tool for the diagnosis of infectious diseases in recent years, but its…
2021 American Transplant Congress
Clinical Validation and Performance of Donor-Derived Cell-Free DNA in Allograft Rejection
S. Anand¹, A. Pai², J. S. Bromberg³, G. Gupta⁴, I. Moinuddin⁴, T. Alhamad⁵, V. Bowers⁶, S. Ghosh⁷, W. Tian⁷, L. Bu⁸, E. Stites⁹
¹Intermountain Medical Center, Murray, UT, ²University of Texas McGovern Medical School, Houston, TX, ³University of Maryland School of Medicine, Baltimore, MD, ⁴Virginia Commonwealth University, Richmond, VA, ⁵Washington University in St. Louis, St. Louis, MO, ⁶Tampa General Hospital, Tampa, FL, ⁷CareDx, Brisbane, CA, ⁸University of Minnesota, Minneapolis, MN, ⁹University of Colorado, Aurora, CO
*Purpose: Extensive literature regarding the utility of donor-derived cell-free DNA (dd-cfDNA) shares various thresholds for active rejection (AR) based on differing data sets for both…
2021 American Transplant Congress
Plasma Donor-Derived Cell-Free DNA Levels Risk-Stratify Kidney Allograft Injury with Isolated Transplant Glomerulitis
L. Bu¹, S. Anand², A. Pai³, J. S. Bromberg⁴, G. Gupta⁵, I. Moinuddin⁵, T. Alhamad⁶, V. Bowers⁷, S. Ghosh⁸, W. Tian⁸, E. Stites⁹
¹University of Minnesota, Minneapolis, MN, ²Intermountain Medical Center, Murray, UT, ³University of Texas McGovern Medical School, Houston, TX, ⁴University of Maryland School of Medicine, Baltimore, MD, ⁵Virginia Commonwealth University, Richmond, VA, ⁶Washington University in St. Louis, St. Louis, MO, ⁷Tampa General Hospital, Tampa, FL, ⁸CareDx, Brisbane, CA, ⁹University of Colorado, Aurora, CO
*Purpose: The Banff lesion Glomerulitis (g) characterizes the degree of microvascular glomerular inflammation. Some studies have demonstrated glomerulitis in the absence of C4d in association…
2021 American Transplant Congress
A Noninvasive Diagnostic Approach for Molecular Monitoring of Face Transplant Recipients
C. Snopkowski¹, P. Rabbani², H. Yang¹, Z. Berman², G. Diep², C. Li¹, T. Muthukumar¹, R. Ding¹, D. Ceradini², M. Suthanthiran¹
¹Weill Cornell Medical Institute, Department of Medicine, Division of Nephrology, NY, NY, ²NYU Langone Health, Hansjörg Wyss Department of Plastic Surgery, NY, NY
*Purpose: Skin biopsies are currently the gold standard for evaluating the inflammatory status of face allografts. However, “tape stripping” is emerging as a noninvasive technique…
2021 American Transplant Congress
Donor-Derived Cell-Free DNA as a Surrogate Marker for “Allograft Quiescence” After Kidney Transplantation
J. S. Bromberg¹, L. Bu², G. Gupta³, I. Moinuddin³, S. Anand⁴, A. Pai⁵, T. Alhamad⁶, V. Bowers⁷, S. Ghosh⁸, W. Tian⁸, E. Stites⁹
¹University of Maryland School of Medicine, Baltimore, MD, ²University of Minnesota, Minneapolis, MN, ³Virginia Commonwealth University, Richmond, VA, ⁴Intermountain Medical Center, Murray, UT, ⁵University of Texas McGovern Medical School, Houston, TX, ⁶Washington University in St. Louis, St. Louis, MO, ⁷Tampa General Hospital, Tampa, FL, ⁸CareDx, Brisbane, CA, ⁹University of Colorado, Aurora, CO
*Purpose: Donor-derived cell-free DNA (dd-cfDNA; AlloSure®) and the association with active rejection (AR) was described by Bloom et al, however subsequent insights have suggested this…
2021 American Transplant Congress
A Multimodal Interrogation of Human Renal Allografts
D. Dadhania¹, R. Ding¹, H. Xu², C. Lee¹, C. Snopkowski¹, T. Salinas¹, T. Muthukumar¹, J. Lee¹, R. Woodward², M. Grskovic², S. Dholakia², M. Suthanthiran¹
¹Weill Cornell Medicine - NYPH, New York, NY, ²CareDx, New York, NY
*Purpose: Development and validation of noninvasive biomarkers of kidney allograft rejection should improve transplant outcomes. CTOT-04 study validated urinary cell mRNA signature (CTOT04-Sig) for T-cell…
2021 American Transplant Congress
Association of Donor-Derived Cell-Free DNA with Severity of Interstitial Fibrosis and Cortical Atrophy Lesions Following Kidney Transplantation
L. Bu¹, E. Stites², V. Bowers³, T. Alhamad⁴, J. S. Bromberg⁵, G. Gupta⁶, I. Moinuddin⁶, S. Ghosh⁷, W. Tian⁷, A. Pai⁸, S. Anand⁹
¹University of Minnesota, Minneapolis, MN, ²University of Colorado, Aurora, CO, ³Tampa General Hospital, Tampa, FL, ⁴Washington University in St. Louis, St. Louis, MO, ⁵University of Maryland School of Medicine, Baltimore, MD, ⁶Virginia Commonwealth University, Richmond, VA, ⁷CareDx, Brisbane, CA, ⁸University of Texas McGovern Medical School, Houston, TX, ⁹Intermountain Medical Center, Murray, UT
*Purpose: The most common cause of kidney transplant (KT) failure is the poorly characterized histopathologic entity “interstitial fibrosis and tubular atrophy” (IFTA). There are no…
2021 American Transplant Congress
High Levels of Donor-Derived Cell-Free DNA Predict EGFR Decline After Kidney Transplantation
T. Alhamad¹, V. Bowers², E. Stites³, S. Anand⁴, J. S. Bromberg⁵, H. Murad¹, G. Gupta⁶, I. Moinuddin⁶, L. Bu⁷, S. Ghosh⁸, J. Zeng⁸, A. Pai⁹
¹Washington University in St. Louis, St. Louis, MO, ²Tampa General Hospital, Tampa, FL, ³University of Colorado, Aurora, CO, ⁴Intermountain Medical Center, Murray, UT, ⁵University of Maryland School of Medicine, Baltimore, MD, ⁶Virginia Commonwealth University, Richmond, VA, ⁷University of Minnesota, Minneapolis, MN, ⁸CareDx, Brisbane, CA, ⁹University of Texas McGovern Medical School, Houston, TX
*Purpose: Persistent, low-grade inflammation is associated with decline in eGFR. Cross-sectional studies have demonstrated a consistent association between circulating inflammatory markers and kidney function. Our…
2021 American Transplant Congress
Benign Pneumatosis Intestinalis with Pneumoperitoneum in the Immunocompromised Patient: Three Cases
A. Mohamed, K. Delvecchio, T. Kitajima, M. Rizzari, K. Collins, A. Yoshida, S. Nagai, J. Denny, M. Abouljoud
Department of Transplant and Hepatobiliary Surgery, Henry Ford Hospital, Detroit, MI
*Purpose: Isolated pneumatosis intestinalis after solid organ transplantation, as well as its surgical management in appropriate clinical context, is a well described entity. The management…