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Background: Liver transplantation (LTx) is the only treatment option for patients with end-stage liver disease. Novel organ preservation techniques such as hypothermic machine perfusion (HMP) or normothermic machine perfusion (NMP) are under investigation in order to improve organ quality from extended criteria donors and donors after circulatory death. The aim of this study was to systematically review the literature reporting LTx outcomes using NMP or HMP compared to static cold storage (SCS).
Methods: The following data were retrieved: graft primary nonfunction rate, early allograft dysfunction (EAD) rate, biliary complication rate, and 12-month graft and patient survival. A total of 15 studies were included (6 NMP and 9 HMP studies), and meta-analysis was performed only for HMP studies because NMP had considerable differences.
Results: The systematic review showed the potential of NMP to reduce graft injury and lower the liver graft discard rate. The performed quantitative analyses showed that the use of HMP reduces the rate of EAD (odds ratio [OR] 0.51; 95% confidence interval [CI] 0.34-0.76; = 0.001; = 0%) and non-anastomotic biliary strictures (OR 0.34; 95% CI 0.17-0.67; = 0.002; = 0%) compared to SCS.
Conclusion: Our systematic review and meta-analysis revealed that the use of HMP reduces the rate of EAD and non-anastomotic biliary strictures compared to SCS.
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http://dx.doi.org/10.1159/000519788 | DOI Listing |
Chirurgia (Bucur)
August 2025
Ischemia time is a well-established determinant of liver transplant outcomes. Patient survival is substantially affected by prolonged warm (WIT) and cold ischemia time (CIT) of the graft during liver transplant. One component that may be a contributing factor to both WIT and CIT is back bench time (BBT).
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
September 2025
Ultrasound Diagnostic Center, The First Hospital of Jilin University, Changchun, China.
Objective: This study aims to construct a multimodal radiomics model based on contrast-enhanced ultrasound (CEUS) radiomic features, combined with conventional ultrasonography (US) images and clinical data, to evaluate its diagnostic efficacy in differentiating benign and malignant thyroid nodules (TNs) classified as C-TIRADS 4, and to assess the clinical application value of the model.
Methods: This retrospective study enrolled 135 patients with C-TIRADS 4 thyroid nodules who underwent concurrent US and CEUS before FNA/surgery. From each case, one US image and three CEUS key frames (2s post-perfusion, peak enhancement, 2s post-peak) were selected.
J Extracell Vesicles
September 2025
Centre for Biochemical Pharmacology, William Harvey Research Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
Extracellular vesicles (EVs) are small anuclear cellular membrane encapsulated fragments of importance for cellular interaction and transfer of information. These small vesicles, diverse in size and functionality, can be obtained from cells, tissues and bodily fluids. A complicated step for obtaining EVs from whole organs is understanding the optimal methodology for organ processing.
View Article and Find Full Text PDFNat Rev Gastroenterol Hepatol
September 2025
Liver4Life, Wyss Translational Center Zurich, Zurich, Switzerland.
Machine perfusion is an emerging and transformative technology for dynamic organ preservation, assessment and repair. Whereas allografts continuously degrade during static cold storage, short-term perfusion can preserve high-quality organs for hours, enabling assessment, regional transport and improved logistics. Long-term perfusion for multiple days might extend the potential of clinical machine perfusion in the future, allowing for the assessment, reconditioning and repair of marginal or injured grafts for which more time is needed.
View Article and Find Full Text PDFRadiother Oncol
September 2025
Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA, United States. Electronic address:
Purpose: Methods have been developed that apply image processing to 4-Dimension computed tomography (4DCT) to generate lung ventilation (4DCT-ventilation). Traditional methods for 4DCT-ventilation rely on density-change methods and lack reproducibility and do not provide 4DCT-perfusion data. Novel 4DCT-ventilation/perfusion methods have been developed that are robust and provide 4DCT-perfusion information.
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