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Hypothermic oxygenated perfusion (HOPE) safely and effectively extends acceptable donor heart preservation times - results of the Australian and New Zealand trial.
Journal of Heart and Lung Transplantation 2023 October 32
BACKGROUND: Cold static storage (CSS) preservation of donor hearts for periods longer than 4 hours increases the risk of primary graft dysfunction (PGD). The aim of the study was to determine if hypothermic oxygenated perfusion (HOPE) could safely prolong the preservation time of donor hearts.
METHODS: We conducted a non-randomised, single arm, multi-center investigation of the effect of HOPE using the XVIVO Heart Preservation System on donor hearts with a projected preservation time of 6-8 hours on 30-day recipient survival and allograft function post-transplant. Each center completed 1 or 2 short preservation time followed by long preservation time cases. PGD was classified as occurring in the first 24 hours after transplantation or secondary (SGD) occurring at any time with a clearly defined cause. Trial survival was compared with a comparator group based on data from the International Society of Heart and Lung Transplantation Registry.
RESULTS: We performed heart transplants using 7 short and 29 long preservation time donor hearts placed on the HOPE system. The mean preservation time for the long preservation time cases was 414 minutes, the longest being 8 hours and 47 minutes. There was 100% survival at 30 days. One long preservation time recipient developed PGD, and 1 developed SGD. One short preservation time patient developed SGD. 30-day survival was superior to the ISHLT comparator group despite substantially longer preservation times in the trial patients.
CONCLUSIONS: HOPE provides effective preservation out to preservation times of nearly 9 hours allowing retrieval from remote geographic locations.
METHODS: We conducted a non-randomised, single arm, multi-center investigation of the effect of HOPE using the XVIVO Heart Preservation System on donor hearts with a projected preservation time of 6-8 hours on 30-day recipient survival and allograft function post-transplant. Each center completed 1 or 2 short preservation time followed by long preservation time cases. PGD was classified as occurring in the first 24 hours after transplantation or secondary (SGD) occurring at any time with a clearly defined cause. Trial survival was compared with a comparator group based on data from the International Society of Heart and Lung Transplantation Registry.
RESULTS: We performed heart transplants using 7 short and 29 long preservation time donor hearts placed on the HOPE system. The mean preservation time for the long preservation time cases was 414 minutes, the longest being 8 hours and 47 minutes. There was 100% survival at 30 days. One long preservation time recipient developed PGD, and 1 developed SGD. One short preservation time patient developed SGD. 30-day survival was superior to the ISHLT comparator group despite substantially longer preservation times in the trial patients.
CONCLUSIONS: HOPE provides effective preservation out to preservation times of nearly 9 hours allowing retrieval from remote geographic locations.
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