BACKGROUND: Due to the discrepancy between organ donors and receptors, the use of marginal livers (e.g., non-heart-beating-donor grafts) for transplantation purpose increased. The potential of a short-term aerobic machine perfusion (post-conditioning) for "less than optimal" grafts after cold storage (CS) was recently demonstrated. In our study, the optimal time course of post-conditioning (PC) is to be evaluated. MATERIALS AND METHODS: Livers from male Wistar rats were withdrawn 30 min after cardiac arrest and flushed with histidine tryptophan ketoglutarate (HTK) solution. Then they were stored in HTK at 4 degrees C for 18 h. After 16 h, some livers were put on PC by cold perfusion with HTK for 0.5, 1, 2 or 3 h. Afterwards, the viability of the organs was estimated by warm reperfusion (2 h) in vitro. RESULTS: After 1 h of PC, a significant increase in bile production and a decrease in enzyme release could be detected in comparison to CS. The adenosine triphosphate content of the PC livers after 1 h of treatment was significant higher than in CS organs. No markers for apoptosis could be detected after 1 h PC. CONCLUSION: It can be concluded that a PC of 1 h after cold storage can ameliorate the organ viability of marginal livers. The extension or abbreviation of PC time seems to have no further beneficial effects.
BACKGROUND: Due to the discrepancy between organ donors and receptors, the use of marginal livers (e.g., non-heart-beating-donor grafts) for transplantation purpose increased. The potential of a short-term aerobic machine perfusion (post-conditioning) for "less than optimal" grafts after cold storage (CS) was recently demonstrated. In our study, the optimal time course of post-conditioning (PC) is to be evaluated. MATERIALS AND METHODS: Livers from male Wistar rats were withdrawn 30 min after cardiac arrest and flushed with histidine tryptophan ketoglutarate (HTK) solution. Then they were stored in HTK at 4 degrees C for 18 h. After 16 h, some livers were put on PC by cold perfusion with HTK for 0.5, 1, 2 or 3 h. Afterwards, the viability of the organs was estimated by warm reperfusion (2 h) in vitro. RESULTS: After 1 h of PC, a significant increase in bile production and a decrease in enzyme release could be detected in comparison to CS. The adenosine triphosphate content of the PC livers after 1 h of treatment was significant higher than in CS organs. No markers for apoptosis could be detected after 1 h PC. CONCLUSION: It can be concluded that a PC of 1 h after cold storage can ameliorate the organ viability of marginal livers. The extension or abbreviation of PC time seems to have no further beneficial effects.
Authors: Mark-Hugo J Maathuis; Steffen Manekeller; Arjan van der Plaats; Henri G D Leuvenink; Nils A 't Hart; A Bastiaan Lier; Gerhard Rakhorst; Rutger J Ploeg; Thomas Minor Journal: Ann Surg Date: 2007-12 Impact factor: 12.969
Authors: Hieu Le Dinh; Arnaud de Roover; Abdour Kaba; Séverine Lauwick; Jean Joris; Jean Delwaide; Pierre Honoré; Michel Meurisse; Olivier Detry Journal: World J Gastroenterol Date: 2012-09-07 Impact factor: 5.742
Authors: Mindaugas Kvietkauskas; Bettina Leber; Kestutis Strupas; Philipp Stiegler; Peter Schemmer Journal: Front Immunol Date: 2020-02-27 Impact factor: 7.561