Peritransplant Cardiometabolic and Mitochondrial Function: The Missing Piece in Donor Heart Dysfunction and Graft Failure
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See Hoe, Louise E
Heather, Lisa C
Molenaar, Peter
Suen, Jacky Y
Peart, Jason
McGiffin, David
Fraser, John F
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Abstract
Primary graft dysfunction (PGD) is an important cause of morbidity and mortality after cardiac transplantation. Donor brain stem death (BSD) is a significant contributor to donor heart dysfunction (DHD) and PGD. There remain substantial gaps in the mechanistic understanding of peritransplant cardiac dysfunction. One of these gaps is cardiac metabolism and metabolic function. The healthy heart is an ‘omnivore’, capable of utilising multiple sources of nutrients to fuel its enormous energetic demand. When this fails, metabolic inflexibility leads to myocardial dysfunction. Data have hinted at metabolic disturbance in the BSD donor and subsequent HTx, however, there is limited evidence demonstrating specific metabolic or mitochondrial dysfunction. This review will examine the literature surrounding cardio-metabolic and mitochondrial function in the BSD donor, organ preservation, and subsequent cardiac transplantation. A more comprehensive understanding of this subject may then help to identify important cardioprotective strategies to improve the number and quality of donor hearts.
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Transplantation
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105
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3
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© 2021 Wolters Kluwer Health, Inc. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
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Biomedical and clinical sciences
Clinical sciences
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Wells, MA; See Hoe, LE; Heather, LC; Molenaar, P; Suen, JY; Peart, J; McGiffin, D; Fraser, JF, Peritransplant Cardiometabolic and Mitochondrial Function: The Missing Piece in Donor Heart Dysfunction and Graft Failure, Transplantation, 2021, 105 (3), pp. 496-508