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The 21st Congress of the European Society of Organ Transplantation (ESOT), held on September 17–20th, 2023, in Athens, Greece, was a pivotal event in transplantation, focusing on the theme "Disruptive Innovation, Trusted Care." The congress attracted a global audience of 2 826 participants from 82 countries, emphasizing its international significance. Machine perfusion, as a groundbreaking technology in organ transplantation, was one of the central focuses of the conference. This year's meeting had a remarkable increase in accepted abstracts on machine perfusion, evidencing its growing prominence in the field. The collective findings from these abstracts highlighted the efficacy of machine perfusion in improving organ viability and transplant outcomes. Studies demonstrated improvements in graft survival and reduction in complications, as well as novel uses and techniques. Furthermore, the integration of machine perfusion with regenerative medicine and its application across multiple organ types were significant discussion points. The congress also highlighted the challenges and solutions in implementing machine perfusion in clinical settings, emphasizing the importance of practical training and international collaboration for advancing this technology. ESOT 2023 served as a crucial platform for disseminating scientific advancements, fostering practical learning, and facilitating international collaborations in organ transplantation. The congress underscored the evolution and importance of machine perfusion technology, marking a significant step forward in enhancing patient outcomes in the field of organ transplantation. [ABSTRACT FROM AUTHOR]

There is limited evidence for a negative impact of preformed, donor-specific HLA antibodies ( DSA) identified by cross-matching on outcomes after liver transplantation. Three recent studies have suggested an association between preformed DSA detected by Luminex and reduced graft or recipient survival in liver transplant cohorts with a high prevalence of hepatitis C. This study investigated the impact of preformed DSA identified by Luminex in the Scottish liver transplant population. All recipients of liver transplants in Scotland between 2007 and 2015 with samples available for day of transplant antibody testing and donor HLA typing were included (n=459); 96% of the cohort were white and 19% had a primary diagnosis of hepatitis C. The median follow-up time was 36 months. Preformed DSA were detected in 88 recipients. In multivariate analysis, preformed DSA with a median fluorescent intensity ≥10 000 were associated with recipient mortality at 1 year. There was no association between DSA and overall graft or recipient survival. This study adds to the growing body of evidence supporting a detrimental impact of preformed, high-level DSA in a subset of liver transplant recipients by identifying an association in an ethnically and demographically distinct liver transplant population. [ABSTRACT FROM AUTHOR]