ArticleBrazilian journal of cardiovascular surgery2026
Heart Transplantation and Cold Ischemia: Towards Crossing the Border?
Article in Brazilian journal of cardiovascular surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionHeart transplantation is a crucial therapeutic modality for patients with advanced heart failure. For satisfactory results, acceptable ischemic times are essential. This study aims to investigate the relationship between cold ischemic time > 4 hours and mortality in the first month after heart transplantation.
methodsRetrospective and observational analysis of medical records of patients who underwent heart transplantation between January 2019 and December 2023. The inclusion criteria were patients who underwent heart transplantation using the histidine-tryptophan-ketoglutarate preservation solution during organ retrieval and immediately before organ implantation. Recipient variables, etiology of heart failure, procedural variables, and 30-day mortality were studied.
resultsDuring the study period, 62 patients underwent heart transplantation. There were a predominance of males (79%) and an average age of 51 years. Seven patients had a cold ischemic time ≥ 4 hours, with three dying (43%) before 30 days. Among the 55 patients with cold ischemic times < 4 hours, 17 died (31%) before 30 days. Statistical analysis using the chi-square test revealed no statistically significant association between cold ischemia and mortality in the first 30 days after transplantation (P = 0.835).
conclusionThe study found no difference in 30-day mortality between patients who underwent heart transplantation with cold ischemic times > 4 hours and those with cold ischemic times < 4 hours. Thus, there may be new strategies to increase the number of donors with a safe rebalance of the relationship between the number of available allografts and patients on the waiting list.
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