scholarly journals Novel Ex-Vivo Thrombolytic Reconditioning of Kidneys Retrieved 4 to 5 Hours after Circulatory Death

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Michael Olausson ◽  
Deepti Antony ◽  
Galina Travnikova ◽  
Martin Johansson ◽  
Nikhil B. Nayakawde ◽  
...  
Keyword(s):  
Ex Vivo ◽  
2018 ◽  
Vol 39 (02) ◽  
pp. 138-147 ◽  
Author(s):  
Bronwyn Levvey ◽  
Kovi Levin ◽  
Miranda Paraskeva ◽  
Glen Westall ◽  
Gregory Snell

AbstractLung transplantation (LTx) has traditionally been limited by a lack of suitable donor lungs. With the recognition that lungs are more robust than initially thought, the size of the donor pool of available lungs has increased dramatically in the past decade. Donation after brain death (DBD) and donation after circulatory death (DCD) lungs, both ideal and extended are now routinely utilized. DBD lungs can be damaged. There are important differences in the public's understanding, legal and consent processes, intensive care unit strategies, lung pathophysiology, logistics, and potential-to-actual donor conversion rates between DBD and DCD. Notwithstanding, the short- and long-term outcomes of LTx from any of these DBD versus DCD donor scenarios are now similar, robust, and continue to improve. Large audits suggest there remains a large untapped pool of DCD (but not DBD) lungs that may yet further dramatically increase lung transplant numbers. Donor scoring systems that might predict the donor conversion rates and lung quality, the role of ex vivo lung perfusion as an assessment and lung resuscitation tool, as well as the potential of donor lung quality biomarkers all have immense promise for the clinical field.


2018 ◽  
Vol 105 (6) ◽  
pp. 1763-1770 ◽  
Author(s):  
Jaskiran K. Sandha ◽  
Christopher W. White ◽  
Alison Müller ◽  
Emma Avery ◽  
James Thliveris ◽  
...  

2020 ◽  
Vol 39 (1) ◽  
pp. 74-82
Author(s):  
Jared P. Beller ◽  
Matthew R. Byler ◽  
Dustin T. Money ◽  
William Z. Chancellor ◽  
Aimee Zhang ◽  
...  

2015 ◽  
Vol 99 (12) ◽  
pp. 2494-2503 ◽  
Author(s):  
Matthew L. Stone ◽  
Ashish K. Sharma ◽  
Valeria R. Mas ◽  
Ricardo C. Gehrau ◽  
Daniel P. Mulloy ◽  
...  

The Lancet ◽  
2015 ◽  
Vol 385 (9987) ◽  
pp. 2585-2591 ◽  
Author(s):  
Kumud K Dhital ◽  
Arjun Iyer ◽  
Mark Connellan ◽  
Hong C Chew ◽  
Ling Gao ◽  
...  

2021 ◽  
Vol 108 (Supplement_4) ◽  
Author(s):  
A Longchamp ◽  
A Klauser ◽  
T Agius ◽  
J Songeon ◽  
A Nastasi ◽  
...  

Abstract Objective Expansion in organ supply has been proposed through the use of organs after circulatory death (donation after circulatory death [DCD]) in order to face the chronic shortage of kidneys for transplantation. However, many DCD grafts are discarded because of long warm ischemia times, and the absence of reliable non-invasive means to determine kidney viability. P magnetic resonance imaging (pMRI) spectroscopy is a noninvasive method to detect high-energy phosphate metabolites, such as ATP. However, the reliability of pMRI to predict kidney energy state, and its viability before transplantation remain also unknown. Methods To mimic DCD, pig kidneys underwent 0, 30 min or 60 min of warm ischemia, before oxygenated hypothermic machine perfusion (HMP). During the ex vivo perfusion, we assessed energy metabolites and Gadolinium elimination using pMRI. Each sample underwent histopathological scoring. Results Using pMRI, we found that in pig kidney, ATP was rapidly generated in presence of oxygen (100 kPa), which remained stable up to 22 h. Warm ischemia (60 min) induced significant histological damages, delayed cortical and medullary Gadolinium elimination (perfusion), and reduced ATP levels, but not its precursors (AMP). Finally, ATP levels and kidney perfusion both inversely correlated with the severity of kidney histological injury. Conclusion ATP levels, and kidney perfusion measurements using pMRI, are biomarkers of kidney injury after warm ischemia. Future work will define the role of pMRI in predicting kidney graft viability and patient's survival.


2020 ◽  
Vol 104 (S3) ◽  
pp. S359-S359
Author(s):  
Leonie van Leeuwen ◽  
Mitchel Ruigrok ◽  
Peter Olinga ◽  
Henri Leuvenink

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