Cardiac Graft Assessment in the Era of Machine Perfusion: Current and Future Biomarkers
Overview
Authors
Affiliations
Heart transplantation remains the treatment of reference for patients experiencing end-stage heart failure; unfortunately, graft availability through conventional donation after brain death is insufficient to meet the demand. Use of extended-criteria donors or donation after circulatory death has emerged to increase organ availability; however, clinical protocols require optimization to limit or prevent damage in hearts possessing greater susceptibility to injury than conventional grafts. The emergence of cardiac ex situ machine perfusion not only facilitates the use of extended-criteria donor and donation after circulatory death hearts through the avoidance of potentially damaging ischemia during graft storage and transport, it also opens the door to multiple opportunities for more sensitive monitoring of graft quality. With this review, we aim to bring together the current knowledge of biomarkers that hold particular promise for cardiac graft evaluation to improve precision and reliability in the identification of hearts for transplantation, thereby facilitating the safe increase in graft availability. Information about the utility of potential biomarkers was categorized into 5 themes: (1) functional, (2) metabolic, (3) hormone/prohormone, (4) cellular damage/death, and (5) inflammatory markers. Several promising biomarkers are identified, and recommendations for potential improvements to current clinical protocols are provided.
A critical evaluation of donor heart offer acceptance in the United Kingdom.
Asemota N, Louca J, Oechsner M, Williams L, Messer S, Manara A Ann Cardiothorac Surg. 2025; 14(1):37-46.
PMID: 39944508 PMC: 11811571. DOI: 10.21037/acs-2024-dcd-24.
Beyond the icebox: modern strategies in organ preservation for transplantation.
Yemaneberhan K, Kang M, Jang J, Kim J, Kim K, Park H Clin Transplant Res. 2025; 38(4):377-403.
PMID: 39743232 PMC: 11732768. DOI: 10.4285/ctr.24.0039.
Electrical graft assessment of machine-perfused hearts donated after circulatory death.
Amesz J, Bierhuizen M, Langmuur S, Dumay D, Manintveld O, Taverne Y Ann Cardiothorac Surg. 2024; 13(6):495-501.
PMID: 39649637 PMC: 11618120. DOI: 10.21037/acs-2024-dcd-0019.
Amarelli C, Bello I, Aigner C, Berman M, Boffini M, Clark S Transpl Int. 2024; 37():13112.
PMID: 39649067 PMC: 11620879. DOI: 10.3389/ti.2024.13112.
Saemann L, Pohl S, Wachter K, Georgevici A, Kohler C, Junger J J Am Heart Assoc. 2024; 13(23):e036872.
PMID: 39575707 PMC: 11681589. DOI: 10.1161/JAHA.124.036872.