Abstract
Heart transplantation remains the gold standard treatment for end-stage heart failure. With an increasing population and improving medical therapy there is an increasing number of patients who would benefit from heart transplantation but are unable to receive one due to a shortage of suitable donor organs. This ongoing need, and significant limitations with traditional cold static storage (CSS), have driven the development of machine perfusion technology that have expanded the donor pool. Machine perfusion is divided into hypothermic and normothermic, with both technologies perfusing the heart with oxygenated solution to reduce the degree of ischaemia-reperfusion injury that occurs. Both technologies have allowed for the safe retrieval and transplantation of hearts with prolonged ischaemic times or following donation after circulatory determination of death and have significantly increased the potential donor pool and number of transplants able to be safely performed. The aim of this review is to summarise the current options available to clinicians for donor heart organ preservation, with a focus on how the development of machine perfusion technology has allowed for the recovery of hearts previously considered unrecoverable using CSS.
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