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Li M, Hu X, Li Y, Chen G, Ding CG, Tian X, Tian P, Xiang H, Pan X, Ding X, Xue W, Zheng J. Development and validation of a novel nomogram model for predicting delayed graft function in deceased donor kidney transplantation based on pre-transplant biopsies. BMC Nephrol 2024; 25:138. [PMID: 38641807 PMCID: PMC11031976 DOI: 10.1186/s12882-024-03557-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 03/21/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Delayed graft function (DGF) is an important complication after kidney transplantation surgery. The present study aimed to develop and validate a nomogram for preoperative prediction of DGF on the basis of clinical and histological risk factors. METHODS The prediction model was constructed in a development cohort comprising 492 kidney transplant recipients from May 2018 to December 2019. Data regarding donor and recipient characteristics, pre-transplantation biopsy results, and machine perfusion parameters were collected, and univariate analysis was performed. The least absolute shrinkage and selection operator regression model was used for variable selection. The prediction model was developed by multivariate logistic regression analysis and presented as a nomogram. An external validation cohort comprising 105 transplantation cases from January 2020 to April 2020 was included in the analysis. RESULTS 266 donors were included in the development cohort, 458 kidneys (93.1%) were preserved by hypothermic machine perfusion (HMP), 96 (19.51%) of 492 recipients developed DGF. Twenty-eight variables measured before transplantation surgery were included in the LASSO regression model. The nomogram consisted of 12 variables from donor characteristics, pre-transplantation biopsy results and machine perfusion parameters. Internal and external validation showed good discrimination and calibration of the nomogram, with Area Under Curve (AUC) 0.83 (95%CI, 0.78-0.88) and 0.87 (95%CI, 0.80-0.94). Decision curve analysis demonstrated that the nomogram was clinically useful. CONCLUSION A DGF predicting nomogram was developed that incorporated donor characteristics, pre-transplantation biopsy results, and machine perfusion parameters. This nomogram can be conveniently used for preoperative individualized prediction of DGF in kidney transplant recipients.
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Affiliation(s)
- Meihe Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaojun Hu
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Yang Li
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Guozhen Chen
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Chen-Guang Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaohui Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Puxun Tian
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Heli Xiang
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaoming Pan
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiaoming Ding
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Wujun Xue
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| | - Jin Zheng
- Department of Renal Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
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2
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Guo Y, Luke P, Sener A. Organ storage in renal transplantation. Curr Opin Urol 2024; 34:8-13. [PMID: 37916955 DOI: 10.1097/mou.0000000000001139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
PURPOSE OF REVIEW Kidney transplantation is vital for those with end-stage renal disease, enhancing quality of life and longevity. It is the preferred treatment but is hindered by a global disparity between donor kidney availability and demand. Therefore, optimizing organ storage techniques is crucial to mitigate the effects of ischemia reperfusion injury in available organs. Recent interest has centered on innovative methods like oxygenated normothermic perfusion and abdominal regional perfusion. RECENT FINDINGS Multiple recent metanalyses, including a Cochrane review, confirm the benefits of hypothermic machine perfusion (HMP) for deceased donor kidneys, demonstrating its utility and cost effectiveness. The benefits of oxygenated normothermic perfusion have been seen in retrospective data sets but not in prospective trials. Abdominal regional perfusion (aNRP) is gaining interest, especially for liver transplantation, but kidney specific data are scant. SUMMARY High-quality evidence backs the use of HMP for deceased donor kidneys. Despite interest in other techniques, clinical evidence for their benefits in kidney transplantation is lacking. The gap between innovation and verified success emphasizes the need for continued research and collaboration between medical professionals, researchers, and ethical committees. This review aims to further illuminate the complexities and advancements in the field, bridging the knowledge gap and aiding in the continual pursuit of excellence in transplantation.
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Affiliation(s)
- Yanbo Guo
- Division of Urology, Department of Surgery, McMaster University, Hamilton
| | - Patrick Luke
- Division of Urology, Department of Surgery, Western University, London, ON, Canada
| | - Alp Sener
- Division of Urology, Department of Surgery, Western University, London, ON, Canada
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3
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Yang S, Hou W, Liu L. Progress in preservation of intestinal grafts by oxygenated hypothermic machine perfusion. Transplant Rev (Orlando) 2024; 38:100802. [PMID: 37891046 DOI: 10.1016/j.trre.2023.100802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/03/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023]
Abstract
Intestine transplantation (IT) is a critical treatment strategy for irreversible intestinal failure. Among all abdominal solid organ transplants, the intestine was the most vulnerable to ischemia and reperfusion injury (IRI). The static cold storage (SCS) technique is currently the most commonly used graft preservation method, but its hypoxia condition causes metabolic disorders, resulting in the occurrence of IRI, limiting its application in marginal organs. It is especially important to improve preservation techniques in order to minimize damage to marginal donor organs, which draws more attention to machine perfusion (MP). There has been much debate about whether it is necessary to increase oxygen in these conditions to support low levels of metabolism since the use of machine perfusion to preserve organs. There is evidence that oxygenation helps to restore intracellular ATP levels in the intestine after thermal or cold ischemia damage. The goal of this review is to provide an overview of the role of oxygen in maintaining environmental stability in the gut under hypoxic conditions, as well as to investigate the possibilities and mechanisms of oxygen delivery during preservation in intestine transplantation studies and clinical models.
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Affiliation(s)
- Shuang Yang
- National Health Commission's Key Laboratory for Critical Care Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China
| | - Wen Hou
- Research Institute of Transplant Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China.
| | - Lei Liu
- Research Institute of Transplant Medicine, Tianjin First Central Hospital, Nankai University, Tianjin, China; Tianjin Key Laboratory for Organ Transplantation, Tianjin First Central Hospital, Nankai University, Tianjin, China; Organ Transplant Department, Tianjin First Central Hospital, Nankai University, Tianjin, China.
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4
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Punukollu R, Ryan M, Misra S, Budhiraja P, Ohara S, Kumm K, Guerra G, Reddy KS, Heilman R, Jadlowiec CC. Past, Current, and Future Perspectives on Transplanting Acute Kidney Injury Kidneys. Clin Pract 2023; 13:944-958. [PMID: 37623267 PMCID: PMC10453697 DOI: 10.3390/clinpract13040086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/24/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
(1) Background: Acute kidney injury (AKI) kidneys have high non-utilization rates due to concerns regarding unfavorable outcomes. In this paper, we aimed to review the past, present, and future opinions on AKI kidneys. (2) Methods: A PubMed search was conducted for topics relevant to AKI kidney transplantation. (3) Results: Current short- and long-term data on AKI kidneys have demonstrated good outcomes including favorable graft function and survival. The role of procurement biopsies is controversial, but they have been shown to be beneficial in AKI kidneys by allowing clinicians to differentiate between reversible tubular injury and irreversible cortical necrosis. Machine perfusion has also been applied to AKI kidneys and has been shown to reduce delayed graft function (DGF). The incidence of DGF increases with AKI severity and its management can be challenging. Strategies employed to counteract this have included early initiation of dialysis after kidney transplantation, early targeting of adequate immunosuppression levels to minimize rejection risk, and establishment of outpatient dialysis. (4) Conclusions: Despite good outcomes, there continue to be barriers that impact AKI kidney utilization. Successful strategies have included use of procurement biopsies or machine perfusion and expectant management of DGF. With increasing experience, better use of AKI kidneys can result in additional opportunities to expand the donor pool.
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Affiliation(s)
- Rachana Punukollu
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Margaret Ryan
- Division of Anatomic Pathology, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Suman Misra
- Division of Nephrology, Mayo Clinic, Phoenix, AZ 85054, USA
| | | | - Stephanie Ohara
- Division of Surgery, Valleywise Health Medical Center, Creighton University, Phoenix, AZ 85008, USA
| | - Kayla Kumm
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Giselle Guerra
- Division of Nephrology, Miami Transplant Institute, Miami, FL 33136, USA
| | - Kunam S. Reddy
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA
| | | | - Caroline C. Jadlowiec
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA
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5
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Werenski H, Stratta RJ, Sharda B, Garner M, Farney AC, Orlando G, McCracken E, Jay CL. Knowing When to Ignore the Numbers: Single-Center Experience Transplanting Deceased Donor Kidneys with Poor Perfusion Parameters. J Am Coll Surg 2023; 236:848-857. [PMID: 36735482 DOI: 10.1097/xcs.0000000000000611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Hypothermic machine perfusion is frequently used in evaluating marginal kidneys with poor perfusion parameters (PPP) contributing to delays in kidney placement or discard. We examined outcomes in deceased donor kidney transplants with PPP compared with those with optimal perfusion parameters (OPP). STUDY DESIGN We conducted a retrospective single-center cohort study from 2001 to 2021 comparing PPP (n = 91) with OPP (n = 598) deceased donor kidney transplants. PPP was defined as terminal flow ≤80 mL/min and terminal resistance ≥0.40 mmHg/mL/min. OPP was defined as terminal flow ≥120 mL/min and terminal resistance ≤0.20 mmHg/mL/min. RESULTS Mean terminal flow was PPP 66 ± 16 vs OPP 149 ± 21 mL/min and resistance was PPP 0.47 ± 0.10 vs OPP 0.15 ± 0.04 mmHg/mL/min (both p < 0.001). Donor age, donation after cardiac death, and terminal serum creatinine levels were similar between groups. Mean Kidney Donor Profile Index was higher among PPP donors (PPP 65 ± 23% vs OPP 52 ± 27%, p < 0.001). The PPP transplant group had more females and lower weight and BMI. Delayed graft function was comparable (PPP 32% vs OPP 27%, p = 0.33) even though cold ischemia times trended toward longer in PPP kidneys (PPP 28 ± 10 vs OPP 26 ± 9 hours, p = 0.09). One-year patient survival (PPP 98% vs OPP 97%, p = 0.84) and graft survival (PPP 91% vs OPP 92%, p = 0.23) were equivalent. PPP did predict inferior overall and death-censored graft survival long-term (overall hazard ratio 1.63, 95% CI 1.19 to 2.23 and death-censored hazard ratio 1.77, 95% CI 1.15 to 2.74). At 1 year, the estimated glomerular filtration rate was higher with OPP kidneys (PPP 40 ± 17 vs OPP 52 ± 19 mL/min/1.73 m 2 , p < 0.001). CONCLUSIONS Short-term outcomes in PPP kidneys were comparable to OPP kidneys despite higher Kidney Donor Profile Index and longer cold ischemia times, suggesting a role for increased utilization of these organs with careful recipient selection.
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Affiliation(s)
- Hope Werenski
- From the Department of Surgery, Section of Abdominal Organ Transplantation, Atrium Health Wake Forest Baptist, Winston-Salem, NC
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6
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Liu RX, Koyawala N, Thiessen-Philbrook HR, Doshi MD, Reese PP, Hall IE, Mohan S, Parikh CR. Untargeted metabolomics of perfusate and their association with hypothermic machine perfusion and allograft failure. Kidney Int 2023; 103:762-771. [PMID: 36549364 DOI: 10.1016/j.kint.2022.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/28/2022] [Accepted: 11/14/2022] [Indexed: 12/24/2022]
Abstract
Although hypothermic machine perfusion (HMP) is associated with improved kidney graft viability and function, the underlying biological mechanisms are unknown. Untargeted metabolomic profiling may identify potential metabolites and pathways that can help assess allograft viability and contribute to organ preservation. Therefore, in this multicenter study, we measured all detectable metabolites in perfusate collected at the beginning and end of deceased-donor kidney perfusion and evaluated their associations with graft failure. In our cohort of 190 kidney transplants, 33 (17%) had death-censored graft failure over a median follow-up of 5.0 years (IQR 3.0-6.1 years). We identified 553 known metabolites in perfusate and characterized their experimental and biological consistency through duplicate samples and unsupervised clustering. After perfusion-time adjustment and false discovery correction, six metabolites in post-HMP perfusate were significantly associated with death-censored graft failure, including alpha-ketoglutarate, 3-carboxy-4-methyl-5-propyl-2-furanpropanoate, 1-carboxyethylphenylalanine, and three glycerol-phosphatidylcholines. All six metabolites were associated with an increased risk of graft failure (Hazard Ratio per median absolute deviation range 1.04-1.45). Four of six metabolites also demonstrated significant interaction with donation after cardiac death with notably greater risk in the donation after cardiac death group (Hazard Ratios up to 1.69). Discarded kidneys did not have significantly different levels of any death-censored graft failure-associated metabolites. On interrogation of pathway analysis, production of reactive oxygen species and increased metabolism of fatty acids were upregulated in kidneys that subsequently developed death-censored graft failure. Thus, further understanding the role of these metabolites may inform the HMP process and help improve the objective evaluation of allograft offers, thereby reducing the discard of potentially viable organs.
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Affiliation(s)
- Richard X Liu
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Neel Koyawala
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Mona D Doshi
- Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Peter P Reese
- Renal-Electrolyte and Hypertension Division, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Isaac E Hall
- Division of Nephrology and Hypertension, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Sumit Mohan
- Department of Medicine, Vagelos College of Physicians and Surgeons, New York, New York, USA; Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Chirag R Parikh
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
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7
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Li JH, Xu X, Wang YF, Xie HY, Chen JY, Dong NG, Badiwala M, Xin LM, Ribeiro RVP, Yin H, Zhang H, Zhang JZ, Huo F, Yang JY, Yang HJ, Pan H, Li SG, Qiao YB, Luo J, Li HY, Jia JJ, Yu H, Liang H, Yang SJ, Wang H, Liu ZY, Zhang LC, Hu XY, Wu H, Hu YQ, Tang PF, Ye QF, Zheng SS. Chinese expert consensus on organ protection of transplantation (2022 edition). Hepatobiliary Pancreat Dis Int 2022; 21:516-526. [PMID: 36376226 DOI: 10.1016/j.hbpd.2022.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/24/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Jian-Hui Li
- Department of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan (Hangzhou) Hospital, Zhejiang Shuren University School of Medicine, Hangzhou 310022, China
| | - Xiao Xu
- Department of Hepatobiliary and Pancreatic Surgery, Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Yan-Feng Wang
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Wuhan 430062, China
| | - Hai-Yang Xie
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Jing-Yu Chen
- Wuxi Lung Transplantation Center, Wuxi People's Hospital Affiliated with Nanjing Medical University, Wuxi 214023, China
| | - Nian-Guo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Mitesh Badiwala
- Peter Munk Cardiac Centre, Toronto General Hospital-University Health Network, Toronto, Canada
| | - Li-Ming Xin
- School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
| | | | - Hao Yin
- Organ Transplant Center, Shanghai Changzheng Hospital, Shanghai 200003, China
| | - Hao Zhang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Jian-Zheng Zhang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Feng Huo
- Department of Surgery, General Hospital of Guangzhou Military Command of PLA, Guangzhou 510040, China
| | - Jia-Yin Yang
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Hong-Ji Yang
- Organ Transplantation Center, Sichuan Provincial People's Hospital and School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Hui Pan
- Department of Lung Transplantation, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Shao-Guang Li
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Yin-Biao Qiao
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Jia Luo
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Hao-Yu Li
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China
| | - Jun-Jun Jia
- Division of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Hao Yu
- Division of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Han Liang
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Wuhan 430062, China
| | - Si-Jia Yang
- Department of Lung Transplantation, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Hao Wang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Zhong-Yang Liu
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Li-Cheng Zhang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Xiao-Yi Hu
- Division of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Hao Wu
- Division of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Yi-Qing Hu
- Division of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Pei-Fu Tang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing 100039, China; National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100039, China
| | - Qi-Fa Ye
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Wuhan 430062, China
| | - Shu-Sen Zheng
- Department of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan (Hangzhou) Hospital, Zhejiang Shuren University School of Medicine, Hangzhou 310022, China; NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou 310003, China; Division of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
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8
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Ruberto F, Lai Q, Piazzolla M, Brisciani M, Pretagostini R, Garofalo M, Giovanardi F, Nudo F, Poli L, Zullino V, Santopietro P, Rossi M, Berloco PB, Pugliese F. The role of hypothermic machine perfusion in selecting renal grafts with advanced histological score. Artif Organs 2022; 46:1771-1782. [PMID: 35548925 PMCID: PMC9544822 DOI: 10.1111/aor.14308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/21/2022] [Accepted: 04/29/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Few studies explored the role of Hypothermic Machine Perfusion (HMP) in the sub-group of non-standard renal grafts with a biopsy-proven advanced histological impairment. This study aimed to investigate the role of HMP in grafts with a Karpinski Score>3 in terms of the need for dialysis, creatinine reduction ratio at day-7 (CRR7), and 3-year graft survival. METHODS Twenty-three perfused grafts with Karpinski Score>3 evaluated between November 2017 and December 2018 were retrospectively analyzed and compared with a control group of 32 non-perfused grafts transplanted between January 2014 and October 2017. RESULTS After transplantation, perfused grafts had fewer cases requiring dialysis (8.7 vs. 34.4%; P=0.051), a better reduction in serum creatinine (median at 7 days: 2.2 vs. 4.3 mg/dL; P=0.045), and shorter length of hospital stay (median 11 vs. 15 days; P=0.01). Three-year death-censored graft survival was better in the perfused cases (91.3% vs. 77.0%; P=0.16). In perfused grafts, initial renal resistance (RR) had the best predictive value for renal function recovery after the first week, as defined by CRR7≤70% (AUC=0.83; P=0.02). A cut-off value of 0.5 mmHg/mL/min showed a sensitivity of 82.4%, a specificity of 83.3% and diagnostic odds ratio=23.4. After dividing the entire population into a Low-RR (n=8) and a High-RR Group (n=15), more cases with CRR7≤70% were reported in the latter group (86.7 vs. 13.3%; P=0.03). CONCLUSION HMP yielded promising results in kidneys with Karpinski Score>3. Initial RR should be of interest in selecting non-standard organs for single kidney transplantation even in impaired histology.
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Affiliation(s)
- Franco Ruberto
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, Sapienza University of Rome, Rome, Italy
| | - Quirino Lai
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Mario Piazzolla
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, Sapienza University of Rome, Rome, Italy
| | - Matteo Brisciani
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, Sapienza University of Rome, Rome, Italy
| | - Renzo Pretagostini
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Manuela Garofalo
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Francesco Giovanardi
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Francesco Nudo
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Luca Poli
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Veronica Zullino
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, Sapienza University of Rome, Rome, Italy
| | - Pietro Santopietro
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, Sapienza University of Rome, Rome, Italy
| | - Massimo Rossi
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Pasquale B Berloco
- General Surgery and Organ Transplantation Unit, Sapienza University of Rome, Rome, Italy
| | - Francesco Pugliese
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, Sapienza University of Rome, Rome, Italy
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9
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A Review of Current and Emerging Trends in Donor Graft-Quality Assessment Techniques. J Clin Med 2022; 11:jcm11030487. [PMID: 35159939 PMCID: PMC8836899 DOI: 10.3390/jcm11030487] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023] Open
Abstract
The number of patients placed on kidney transplant waiting lists is rapidly increasing, resulting in a growing gap between organ demand and the availability of kidneys for transplantation. This organ shortage has forced medical professionals to utilize marginal kidneys from expanded criteria donors (ECD) to broaden the donor pool and shorten wait times for patients with end-stage renal disease. However, recipients of ECD kidney grafts tend to have worse outcomes compared to those receiving organs from standard criteria donors (SCD), specifically increased risks of delayed graft function (DGF) and primary nonfunction incidence. Thus, representative methods for graft-quality assessment are strongly needed, especially for ECDs. Currently, graft-quality evaluation is limited to interpreting the donor’s recent laboratory tests, clinical risk scores, the visual evaluation of the organ, and, in some cases, a biopsy and perfusion parameters. The last few years have seen the emergence of many new technologies designed to examine organ function, including new imaging techniques, transcriptomics, genomics, proteomics, metabolomics, lipidomics, and new solutions in organ perfusion, which has enabled a deeper understanding of the complex mechanisms associated with ischemia-reperfusion injury (IRI), inflammatory process, and graft rejection. This review summarizes and assesses the strengths and weaknesses of current conventional diagnostic methods and a wide range of new potential strategies (from the last five years) with respect to donor graft-quality assessment, the identification of IRI, perfusion control, and the prediction of DGF.
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10
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van Leeuwen LL, Leuvenink HGD, Olinga P, Ruigrok MJR. Shifting Paradigms for Suppressing Fibrosis in Kidney Transplants: Supplementing Perfusion Solutions With Anti-fibrotic Drugs. Front Med (Lausanne) 2022; 8:806774. [PMID: 35083254 PMCID: PMC8784659 DOI: 10.3389/fmed.2021.806774] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/16/2021] [Indexed: 12/16/2022] Open
Abstract
Great efforts have been made toward addressing the demand for donor kidneys. One of the most promising approaches is to use kidneys from donation after circulatory death donors. These kidneys, however, suffer from more severe ischemia and reperfusion injury than those obtained via donation after brain death and are thus more prone to develop interstitial fibrosis and tubular atrophy. Even though machine perfusion is increasingly used to reduce ischemia and reperfusion injury, there are no effective treatments available to ameliorate interstitial fibrosis and tubular atrophy, forcing patients to resume dialysis, undergo re-transplantation, or suffer from premature death. Safe and effective anti-fibrotic therapies are therefore greatly desired. We propose a new therapeutic approach in which machine perfusion solutions are supplemented with anti-fibrotic compounds. This allows the use of higher concentrations than those used in humans whilst eliminating side effects in other organs. To the authors' knowledge, no one has reviewed whether such an approach could reduce interstitial fibrosis and tubular atrophy; we therefore set out to explore its merit. In this review, we first provide background information on ischemia and reperfusion injury as well as interstitial fibrosis and tubular atrophy, after which we describe currently available approaches for preserving donor kidneys. We then present an evaluation of selected compounds. To identify promising compounds, we analyzed publications describing the effects of anti-fibrotic molecules in precision-cut kidneys slices, which are viable explants that can be cultured ex vivo for up to a few days whilst retaining functional and structural features. LY2109761, galunisertib, imatinib, nintedanib, and butaprost were shown to exert anti-fibrotic effects in slices within a relatively short timeframe (<48 h) and are therefore considered to be excellent candidates for follow-up ex vivo machine perfusion studies.
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Affiliation(s)
- L. Leonie van Leeuwen
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Henri G. D. Leuvenink
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Peter Olinga
- Department of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Mitchel J. R. Ruigrok
- Department of Pharmaceutical Technology and Biopharmacy, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, Netherlands
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11
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Hunt F, Johnston CJC, Coutts L, Sherif AE, Farwell L, Stutchfield BM, Sewpaul A, Sutherland A, Babu BI, Currie IS, Oniscu GC. From Haphazard to a Sustainable Normothermic Regional Perfusion Service: A Blueprint for the Introduction of Novel Perfusion Technologies. Transpl Int 2022; 35:10493. [PMID: 35721469 PMCID: PMC9203686 DOI: 10.3389/ti.2022.10493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/10/2022] [Indexed: 11/21/2022]
Abstract
Normothermic Regional Perfusion (NRP) has shown encouraging clinical results. However, translation from an experimental to routine procedure poses several challenges. Herein we describe a model that led to the implementation of NRP into standard clinical practice in our centre following an iterative process of refinement incorporating training, staffing and operative techniques. Using this approach we achieved a four-fold increase in trained surgical staff and a 6-fold increase in competent senior organ preservation practitioners in 12 months, covering 93% of the retrieval calls. We now routinely provide NRP throughout the UK and attended 186 NRP retrievals from which 225 kidneys, 26 pancreases and 61 livers have been transplanted, including 5 that were initially declined by all UK transplant centres. The 61 DCD(NRP) liver transplants undertaken exhibited no primary non-function or ischaemic cholangiopathy with up to 8 years of follow-up. This approach also enabled successful implementation of ex situ normothermic liver perfusion which together with NRP contributed 37.5% of liver transplant activity in 2021. Perfusion technologies (in situ and ex situ) are now supported by a team of Advanced Perfusion and Organ Preservation Specialists. The introduction of novel perfusion technologies into routine clinical practice presents significant challenges but can be greatly facilitated by developing a specific role of Advanced Perfusion and Organ Preservation Specialist supported by a robust education, training and recruitment programme.
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12
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Goulamhoussen N, Slapcoff L, Baran D, Boucher A, Houde I, Masse M, Albert M, Marsolais P, Cardinal H, Bouchard J. Factors Associated With the Use of Hypothermic Machine Perfusion in Kidney Transplant Recipients: A Multicenter Retrospective Cohort Study. Can J Kidney Health Dis 2022; 9:20543581211048338. [PMID: 36062213 PMCID: PMC9434662 DOI: 10.1177/20543581211048338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 09/06/2021] [Indexed: 11/24/2022] Open
Abstract
Background: Delayed graft function (DGF) is associated with an increased risk of graft
loss. The use of cold hypothermic machine perfusion (HMP) has been shown to
reduce the incidence of DGF in kidney transplant recipients (KTRs),
especially when extended-criteria donors (ECDs) are used. HMP can also
improve graft survival. However, there is a paucity of data on the
determinants of HMP use in clinical practice. Objective: We aimed to determine the factors associated with the use of HMP in a cohort
of donors and KTRs. Design: Multicenter retrospective cohort study. Setting: 5 transplant centers in Quebec. Patients: 159 neurologically deceased donors (NDD) and 281 KTR. Measurements: Use of HMP. Methods: We collected data on consecutive NDD admitted to a dedicated donor unit in a
single university-affiliated center and their KTRs between June 2013 and
December 2018 in 5 adult transplant centers across the province of Quebec,
Canada. All organs were recovered in a single hospital center where a HMP
device was available for every organ recovered and the decision to use HMP
was left at the discretion of the procurement surgeon. Generalized
estimating equations were used to predict the use of HMP. Results: The cohort included 159 NDDs and their 281 KTRs. Thirty-three percent of
donors were ECDs, and 59% of KTRs received organs placed on HMP. The median
cold ischemia time (CIT) was 12.5 (IQR 7.9-16.3) hours. In univariate
analysis, none of the donors’ characteristics were associated with the use
of HMP. ECD represented 33% of KTR on HMP vs 35% of those not placed on HMP
(P = .77). In univariate analysis, the use of HMP was
associated with KTR race (non-Caucasian), longer CIT, use of
basiliximab/alemtuzumab, year of transplant, and transplant center. The use
of HMP varied largely across transplant centers, ranging from 15% to 82%. In
multivariate analysis, use of HMP was associated with longer CIT (odds ratio
[OR] 1.15, 95% confidence interval [CI] = 1.07-1.25), transplant center as
well as transplantations performed after 2013. Limitations: One dedicated donor unit including NDD only, absence of specific data on
surgeons’ experience and personal or logistic reasons for using or not
HMP. Conclusions: We found that use of HMP remains low and varies largely across transplant
centers. The use of HMP was strongly associated with the transplant center
where the surgeons practiced, suggesting that surgeon preference/training
plays an important role in determining the use of HMP. Availability of HMP
at the time of organ procurement might also be limited by logistic issues
such as difficulty in returning the device. Further studies aimed at
determining the reasons underlying the barriers precluding the use of HMP
could help increasing its use and improve transplant outcomes.
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Affiliation(s)
- Nadir Goulamhoussen
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, QC, Canada
| | - Lawrence Slapcoff
- Department of Medicine, McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - Dana Baran
- Department of Medicine, McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - Anne Boucher
- Department of Medicine, Hôpital Maisonneuve-Rosemont, Université de Montréal, QC, Canada
| | - Isabelle Houde
- Department of Medicine, Centre Hospitalier Universitaire de Québec, QC, Canada
| | - Mélanie Masse
- Department of Medicine, Centre Hospitalier Universitaire de Sherbrooke, QC, Canada
| | - Martin Albert
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, QC, Canada
| | - Pierre Marsolais
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, QC, Canada
| | - Heloïse Cardinal
- Research center, Centre Hospitalier de l’Université de Montréal, Université de Montréal, QC, Canada
| | - Josée Bouchard
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Université de Montréal, QC, Canada
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13
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Predictive value of hypothermic machine perfusion parameters combined perfusate biomarkers in deceased donor kidney transplantation. Chin Med J (Engl) 2021; 135:181-186. [PMID: 34924501 PMCID: PMC8769098 DOI: 10.1097/cm9.0000000000001867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background: Delayed graft function (DGF) is the main cause of renal function failure after kidney transplantation. This study aims at investigating the value of hypothermic machine perfusion (HMP) parameters combined with perfusate biomarkers on predicting DGF and the time of renal function recovery after deceased donor (DD) kidney transplantation. Methods: HMP parameters, perfusate biomarkers and baseline characteristics of 113 DD kidney transplantations from January 1, 2019 to August 31, 2019 in the First Affiliated Hospital of Xi’an Jiaotong University were retrospectively analyzed using univariate and multivariate logistic regression analysis. Results: In this study, the DGF incidence was 17.7% (20/113); The multivariate logistic regression results showed that terminal resistance (OR: 1.879, 95% CI 1.145–3.56) and glutathione S-transferase (GST)(OR = 1.62, 95% CI 1.23–2.46) were risk factors for DGF; The Cox model analysis indicated that terminal resistance was an independent hazard factor for renal function recovery time (HR = 0.823, 95% CI 0.735–0.981). The model combining terminal resistance and GST (AUC = 0.888, 95% CI: 0.842–0.933) significantly improved the DGF predictability compared with the use of terminal resistance (AUC = 0.756, 95% CI 0.693–0.818) or GST alone (AUC = 0.729, 95% CI 0.591–0.806). Conclusion: According to the factors analyzed in this study, the combination of HMP parameters and perfusate biomarkers displays a potent DGF predictive value.
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14
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Persufflation—Current State of Play. TRANSPLANTOLOGY 2021. [DOI: 10.3390/transplantology2030035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
With the ever-increasing disparity between the number of patients waiting for organ transplants and the number organs available, some patients are unable to receive life-saving transplantation in time. The present, widely-used form of preservation is proving to be incapable of maintaining organ quality during long periods of preservation and meeting the needs of an ever-changing legislative and transplantation landscape. This has led to the need for improved preservation techniques. One such technique that has been extensively researched is gaseous oxygen perfusion or Persufflation (PSF). This method discovered in the early 20th century has shown promise in providing both longer term preservation and organ reconditioning capabilities for multiple organs including the liver, kidneys, and pancreas. PSF utilises the organs own vascular network to provide oxygen to the organ tissue and maintain metabolism during preservation to avoid hypoxic damage. This review delves into the history of this technique, its multiple different approaches and uses, as well as in-depth discussion of work published in the past 15 years. Finally, we discuss exciting commercial developments which may help unlock the potential for this technique to be applied at scale.
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15
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Chen C, Chen M, Lin X, Guo Y, Ma Y, Chen Z, Ju W, He X. En bloc procurement of porcine abdominal multiple organ block for ex situ normothermic machine perfusion: a technique for avoiding initial cold preservation. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1116. [PMID: 34430557 PMCID: PMC8350716 DOI: 10.21037/atm-21-1308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/11/2021] [Indexed: 12/18/2022]
Abstract
Background Normothermic machine perfusion (NMP) is a technique that maintains organs ex situ with normal metabolism, and organ function can be better preserved. The study of multiple-organ NMP is rarely reported. Multiple organ block (MOB) is a self-perfusing system for maintaining multiple organs ex situ, and porcine MOBs have been successfully preserved for 18 to 37 h. Due to the above context, we conceived to maintain abdominal multiple organ block (AMOB) ex situ utilizing NMP technology. Methods AMOBs were procured from Ba-Ma miniature pigs through en bloc procurement surgery. The process of cold preservation was eliminated between the procurement and machine perfusion, and a few minutes of warm ischemia emerged. Autologous whole blood was collected during procurement surgery as a perfusate component in the beginning. Results The median time of procurement surgery was approximately 220 min, and the median time of warm ischemia was 300 sec. Cases 1 and 2 suffered from repeated hypotension during the procurement surgery, and case 2 exhibited hemorrhage. After improved and optimized procurement processes, the vital signs of cases 3 to 5 remained stable during procurement. In the NMP phase, the flow increased slowly in cases 1 and 2 and did not remain stable even after continuous infusion of a high-dose vasodilator. The lactic acid level rapidly increased, and the levels of ALT and AST were obviously higher than those in cases 3 to 5. In contrast, the flow rate increased smoothly in cases 3 to 5. The lactic acid level remained stable during the first 10 h of perfusion. Conclusions AMOB procurement from heart-beating pigs for NMP without initial cold preservation is technically feasible.
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Affiliation(s)
- Chuanbao Chen
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Maogen Chen
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Xiaohong Lin
- Division of General Surgery, The Eastern Hospital of the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yiwen Guo
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Yihao Ma
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Zhitao Chen
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Weiqiang Ju
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
| | - Xiaoshun He
- Organ Transplant Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), Guangzhou, China
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16
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Dondossola D, Ravaioli M, Lonati C, Maroni L, Pini A, Accardo C, Germinario G, Antonelli B, Odaldi F, Zanella A, Siniscalchi A, Cescon M, Rossi G. The Role of Ex Situ Hypothermic Oxygenated Machine Perfusion and Cold Preservation Time in Extended Criteria Donation After Circulatory Death and Donation After Brain Death. Liver Transpl 2021; 27:1130-1143. [PMID: 33835695 DOI: 10.1002/lt.26067] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 03/08/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
Hypothermic oxygenated machine perfusion (HOPE) has the potential to counterbalance the detrimental consequences of cold and warm ischemia time (WIT) in both donation after brain death (DBD) and donation after circulatory death (DCD). Herein we investigated the protective effects of HOPE in extended criteria donor (ECD) DBD and overextended WIT DCD grafts. The present retrospective case series included 50 livers subjected to end-ischemic HOPE or dual DHOPE in 2 liver transplantation (LT) centers from January 2018 to December 2019. All DCD donors were subjected to normothermic regional perfusion before organ procurement. Results are expressed as median (interquartile range [IQR]). In the study period, 21 grafts were derived from overextended WIT DCD donors (total WIT 54 [IQR, 40-60] minutes and 75% classified as futile), whereas 29 were from ECD DBD. A total of 3 biliary complications and 1 case of ischemia-type biliary lesion were diagnosed. The rate of early allograft dysfunction (EAD) was 20%, and those patients had higher Comprehensive Complication Index scores. Through a changing point analysis, cold preservation time >9 hours was associated with prolonged hospital stays (P = 0.02), higher rates of EAD (P = 0.009), and worst post-LT complications (P = 0.02). Logistic regression analyses indicated a significant relationship between cold preservation time and EAD. No differences were shown in terms of the early post-LT results between LTs performed with DCD and DBD. Overall, our data are fully comparable with benchmark criteria in LT. In conclusion, the application of DHOPE obtained satisfactory and promising results using ECD-DBD and overextended DCD grafts. Our findings indicate the need to reduce cold preservation time also in the setting of DHOPE, particularly for grafts showing poor quality.
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Affiliation(s)
- Daniele Dondossola
- General and Liver Transplant Surgery Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Matteo Ravaioli
- Department of General Surgery and Transplantation, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Caterina Lonati
- Center for Preclinical Research, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Lorenzo Maroni
- Department of General Surgery and Transplantation, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Alessia Pini
- Department of Statistical Sciences, Università Cattolica del Sacro Cuore, Milan, Italy
| | - Caterina Accardo
- General and Liver Transplant Surgery Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Giuliana Germinario
- Department of General Surgery and Transplantation, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Barbara Antonelli
- General and Liver Transplant Surgery Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Federica Odaldi
- Department of General Surgery and Transplantation, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Alberto Zanella
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy.,Department of Anesthesia and Critical Care, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Antonio Siniscalchi
- Department of General Surgery and Transplantation, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Matteo Cescon
- Department of General Surgery and Transplantation, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Giorgio Rossi
- General and Liver Transplant Surgery Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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17
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van der Windt DJ, Mehta R, Jorgensen DR, Hariharan S, Randhawa PS, Sood P, Molinari M, Wijkstrom M, Ganoza A, Tevar AD. Donation after circulatory death is associated with increased fibrosis on 1-year post-transplant kidney allograft surveillance biopsy. Clin Transplant 2021; 35:e14399. [PMID: 34176169 DOI: 10.1111/ctr.14399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/28/2021] [Accepted: 06/14/2021] [Indexed: 11/29/2022]
Abstract
AIM The use of kidneys donated after circulatory death (DCD) provides an invaluable expansion of the organ supply for transplantation. Here, we investigated the effect of DCD on fibrotic changes on 1 1-year post 1-transplant surveillance kidney allograft biopsy. METHODS Recipients of a deceased donor kidney transplant between 2013 and 2017 at a single institution, who survived 1 year and underwent surveillance biopsy, were included in the analysis (n = 333: 87 DCD kidneys, 246 kidneys donated after brain death [DBD]). Banff scores for interstitial fibrosis and tubular atrophy were summed as IFTA and compared between the groups. RESULTS DCD and DBD groups were comparable for baseline characteristics. Delayed graft function was 39% in DCD versus 19% in DBD, P = .0002. Patient and graft survival were comparable for DCD and DBD cohorts. IFTA scores were higher in DCD compared to DBD (2.43±..13 vs. 2.01±..08, P = .0054). On multivariate analysis, the odds of IFTA > 2 in the DCD group was 2.5× higher (95%CI: 1.354.63) than in the DBD group. Within the DCD group, kidneys with IFTA > 2 had inferior 5-year graft survival (P = .037). CONCLUSION Compared to DBD kidneys, DCD kidneys developed a greater degree of fibrotic changes on 1-year post-transplant surveillance biopsy, which affected graft longevity within the DCD cohort.
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Affiliation(s)
- Dirk J van der Windt
- Division of Transplant Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.,Section of Transplant Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Rajil Mehta
- Division of Transplant Nephrology, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Dana R Jorgensen
- Division of Transplant Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Sundaram Hariharan
- Division of Transplant Nephrology, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Parmjeet S Randhawa
- Division of Transplant Pathology, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Puneet Sood
- Division of Transplant Nephrology, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Michele Molinari
- Division of Transplant Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Martin Wijkstrom
- Division of Transplant Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Armando Ganoza
- Division of Transplant Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Amit D Tevar
- Division of Transplant Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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18
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Husen P, Boffa C, Jochmans I, Krikke C, Davies L, Mazilescu L, Brat A, Knight S, Wettstein D, Cseprekal O, Banga N, Bellini MI, Szabo L, Ablorsu E, Darius T, Quiroga I, Mourad M, Pratschke J, Papalois V, Mathe Z, Leuvenink HGD, Minor T, Pirenne J, Ploeg RJ, Paul A. Oxygenated End-Hypothermic Machine Perfusion in Expanded Criteria Donor Kidney Transplant: A Randomized Clinical Trial. JAMA Surg 2021; 156:517-525. [PMID: 33881456 DOI: 10.1001/jamasurg.2021.0949] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Importance Continuous hypothermic machine perfusion during organ preservation has a beneficial effect on graft function and survival in kidney transplant when compared with static cold storage (SCS). Objective To compare the effect of short-term oxygenated hypothermic machine perfusion preservation (end-HMPo2) after SCS vs SCS alone on 1-year graft survival in expanded criteria donor kidneys from donors who are brain dead. Design, Setting, and Participants In a prospective, randomized, multicenter trial, kidneys from expanded criteria donors were randomized to either SCS alone or SCS followed by end-HMPo2 prior to implantation with a minimum machine perfusion time of 120 minutes. Kidneys were randomized between January 2015 and May 2018, and analysis began May 2019. Analysis was intention to treat. Interventions On randomization and before implantation, deceased donor kidneys were either kept on SCS or placed on HMPo2. Main Outcome and Measures Primary end point was 1-year graft survival, with delayed graft function, primary nonfunction, acute rejection, estimated glomerular filtration rate, and patient survival as secondary end points. Results Centers in 5 European countries randomized 305 kidneys (median [range] donor age, 64 [50-84] years), of which 262 kidneys (127 [48.5%] in the end-HMPo2 group vs 135 [51.5%] in the SCS group) were successfully transplanted. Median (range) cold ischemia time was 13.2 (5.1-28.7) hours in the end-HMPo2 group and 12.9 (4-29.2) hours in the SCS group; median (range) duration in the end-HMPo2 group was 4.7 (0.8-17.1) hours. One-year graft survival was 92.1% (n = 117) in the end-HMPo2 group vs 93.3% (n = 126) in the SCS group (95% CI, -7.5 to 5.1; P = .71). The secondary end point analysis showed no significant between-group differences for delayed graft function, primary nonfunction, estimated glomerular filtration rate, and acute rejection. Conclusions and Relevance Reconditioning of expanded criteria donor kidneys from donors who are brain dead using end-HMPo2 after SCS does not improve graft survival or function compared with SCS alone. This study is underpowered owing to the high overall graft survival rate, limiting interpretation. Trial Registration isrctn.org Identifier: ISRCTN63852508.
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Affiliation(s)
- Peri Husen
- Department of General, Visceral and Transplantation Surgery, University Hospital Essen, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - Catherine Boffa
- Nuffield Department of Surgical Sciences, University of Oxford, United Kingdom
| | - Ina Jochmans
- Transplant Research Group, Laboratory of Abdominal Transplantation, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Christina Krikke
- Department of Surgery, University Medical Center Groningen, the Netherlands
| | - Lucy Davies
- Nuffield Department of Surgical Sciences, University of Oxford, United Kingdom
| | - Laura Mazilescu
- Department of General, Visceral and Transplantation Surgery, University Hospital Essen, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - Aukje Brat
- Department of Surgery, University Medical Center Groningen, the Netherlands
| | - Simon Knight
- Nuffield Department of Surgical Sciences, University of Oxford, United Kingdom
| | - Daniel Wettstein
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary
| | - Orsolya Cseprekal
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary.,International Nephrology Research and Training Center (INRTC), Budapest, Hungary
| | - Neal Banga
- Department of General Surgery, Royal Free Hospital, London, United Kingdom
| | | | - Laszlo Szabo
- Nephrology and Transplant Directorate, University Hospital of Wales, Cardiff, United Kingdom
| | - Elijah Ablorsu
- Nephrology and Transplant Directorate, University Hospital of Wales, Cardiff, United Kingdom
| | - Tom Darius
- Surgery and Abdominal Transplant Unit, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Isabel Quiroga
- Oxford University Hospitals, NHS Foundation Trust, Oxford, United Kingdom
| | - Michel Mourad
- Surgery and Abdominal Transplant Unit, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | | | | | - Zoltan Mathe
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary.,Department of Transplantation and Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Thomas Minor
- Department of General, Visceral and Transplantation Surgery, University Hospital Essen, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - Jacques Pirenne
- Transplant Research Group, Laboratory of Abdominal Transplantation, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Rutger J Ploeg
- Nuffield Department of Surgical Sciences, University of Oxford, United Kingdom
| | - Andreas Paul
- Department of General, Visceral and Transplantation Surgery, University Hospital Essen, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
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19
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Zhang Y, Pan Q, Cheng Y, Liu Y. Effects of SP600125 and hypothermic machine perfusion on livers donated after cardiac death in a pig allograft transplantation model. Eur J Med Res 2021; 26:15. [PMID: 33546770 PMCID: PMC7863371 DOI: 10.1186/s40001-020-00472-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/14/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Hypothermic machine perfusion (HMP) improves the quality of donor livers for transplantation, both in animal models and in clinical practice. Treatment with SP600125, an inhibitor of c-Jun N-terminal kinase (JNK), can suppress the JNK signaling pathway to alleviate donor liver ischemia-reperfusion injury (IRI). We performed the present study with the objective of exploring the protective effects exerted by a combination of HMP and SP600125 on liver xenograft viability for donation after cardiac death (DCD) in a porcine model. METHODS 54 adult BAMA mini-pigs were randomly assigned to 5 groups, including sham, cold storage for 4 h (CS 4 h), CS 4 h + SP600125, CS 2 h + HMP 2 h, and CS 2 h + HMP 2 h + SP600125 groups. Donor livers in the CS 4 h and CS 4 h + SP600125 groups were conventionally cold preserved for 4 h, whereas donor livers in the CS 2 h + HMP 2 h and CS 2 h + HMP 2 h + SP600125 groups were cold preserved for 2 h and then treated with HMP for 2 h. The preservation and perfusion solutions contained SP600125 (20 µM). Follow-up was conducted for 5 days after liver transplantation to compare the surgical outcomes by means of serological examination, pathological results, and survival rate. RESULTS The most satisfactory outcome after liver transplantation was observed in the CS 2 h + HMP 2 h + SP600125 group, which presented with minimal damage of donor livers during 5 days' follow-up. Additionally, serological examination, pathological results, and survival rate concurred in showing better results in the CS 2 h + HMP 2 h ± SP600125 group than in the CS 4 h ± SP600125 group. CONCLUSION HMP in combination with SP600125 has hepatoprotective properties and improves the quality and viability of porcine livers collected after DCD, thus improving prognosis after liver transplantation.
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Affiliation(s)
- Yijie Zhang
- Department of Organ Transplantation and Hepatobiliary, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China.,The Key Laboratory of Organ Transplantation of Liaoning Province, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Qi Pan
- Department of Organ Transplantation and Hepatobiliary, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China.,The Key Laboratory of Organ Transplantation of Liaoning Province, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Ying Cheng
- Department of Organ Transplantation and Hepatobiliary, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China.,The Key Laboratory of Organ Transplantation of Liaoning Province, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Yongfeng Liu
- Department of Organ Transplantation and Hepatobiliary, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China. .,The Key Laboratory of Organ Transplantation of Liaoning Province, The First Affiliated Hospital of China Medical University, No. 155, Nanjing Street, Shenyang, 110001, Liaoning, People's Republic of China.
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20
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Krishnamoorthy V, Qiu Q, Souter MJ. Hypothermic machine perfusion utilization and outcomes for deceased-donor kidneys: A retrospective cohort study. Int J Crit Illn Inj Sci 2020; 10:17-20. [PMID: 33376685 PMCID: PMC7759075 DOI: 10.4103/ijciis.ijciis_22_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/10/2020] [Accepted: 07/31/2020] [Indexed: 11/30/2022] Open
Abstract
Introduction: Hypothermic machine perfusion (HMP) has been established as an efficacious method for preserving kidney allografts from deceased donors in clinical trials, but little data are available on the effectiveness of HMP in real-world settings. We examined factors associated with HMP use and clinical outcomes in a real-world organ procurement organization setting. Methods: We conducted a retrospective cohort study of the Lifecenter Northwest organ procurement database from 2010 to 2015, linked to the United Network of Organ Sharing outcomes database. We examined HMP utilization, and our primary outcomes were delayed graft function (DGF) and graft survival, using multivariable Poisson and Cox regression models. Results: Among 1729 deceased-donor kidneys, 797 (46%) were preserved with HMP. Higher donor age, region of procurement, and donation type were associated with HMP use. HMP was associated with a 37% decreased risk of DGF (adjusted relative risk 0.63, 95% confidence interval [CI]: 0.51–0.78), with no effect on 1-year graft survival (adjusted hazard ratio 0.83, 95% CI: 0.38–1.80). Conclusion: Variation exists in the utilization of HMP for deceased donor kidneys. HMP reduced the risk for DGF, but was not associated with improvements in long-term graft survival.
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Affiliation(s)
- Vijay Krishnamoorthy
- Department of Anesthesiology, Duke University, Durham, NC, USA.,Department of Anesthesiology, Critical Care and Perioperative Epidemiologic Research Unit, Duke University, Durham, NC, USA
| | - Qian Qiu
- Harborview Injury Prevention and Research Center, University of Washington, Seattle, Washington, USA
| | - Michael J Souter
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington, USA
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21
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[Postoperative complications and long-term outcomes of transplantation with expended criteria donors transplants]. Prog Urol 2020; 30:655-662. [PMID: 32814659 DOI: 10.1016/j.purol.2020.04.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/13/2020] [Accepted: 04/19/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The objective of this study was to analyze early, late complications and outcomes following expended criteria donors (ECD) kidney transplantation compared to standard donors. MATERIALS AND METHODS We performed a retrospective study including 470 patients who received a kidney transplant between 2005 and 2016. Expended criteria donors were defined following the United Network of Organ Sharing criteria. In each group, length of stay, delayed graft function, surgical site infection, acute rejection, surgical complications by type and according to Clavien and Dindo classification were analyzed in univariate and multivariate analysis. The impact of ECD transplant on transplant and patient survival was assessed using a Cox proportional regression model. RESULTS One hundred and ninety seven (41.9%) patients received ECD kidney. The mean follow-up was 61,4 months (22.4-93.89). Patients with ECD transplant presented more delayed graft function (HR=2.1 (1.1-3.68), P=0.008) but the rate of complications including surgical complications was not different. Patients and transplant survival were decreased in ECD transplant group (P=0.005 et 0.001 respectively). In multivariate analysis ECD kidney was an independent factor only associated with decreased transplant survival (HR=1.81 (1.1-2.98), P=0.029) but not with patient survival. CONCLUSION ECD kidney transplantation was not associated with increased postoperative complications but a higher rate of delayed graft function. Nevertheless, it was associated with a decreased transplant survival. The use of pulsatile perfusion machine for explanted criteria transplant should be evaluated to improve these results.
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22
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Bonaccorsi-Riani E, Brüggenwirth IMA, Buchwald JE, Iesari S, Martins PN. Machine Perfusion: Cold versus Warm, versus Neither. Update on Clinical Trials. Semin Liver Dis 2020; 40:264-281. [PMID: 32557478 DOI: 10.1055/s-0040-1713118] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Machine perfusion (MP) preservation is potentially one of the most significant improvements in the field of liver transplantation in the last 20 years, and it has been considered a promising strategy for improved preservation and ex situ evaluation of extended criteria donor (ECD) organs. However, MP preservation adds significant cost and logistical considerations to liver transplantation. MP protocols are mainly classified according to the perfusion temperature with hypothermic machine perfusion (HMP) and normothermic machine perfusion (NMP) being the two categories most studied so far. After extensive preclinical work, MP entered the clinical setting, and there are now several studies that demonstrated feasibility and safety. However, because of the limited quality of clinical trials, there is no compelling evidence of superiority in preservation quality, and liver MP is still considered experimental in most countries. MP preservation is moving to a more mature phase, where ongoing and future studies will bring new evidence in order to confirm their superiority in terms of clinical outcomes, organ utilization, and cost-effectiveness. Here, we present an overview of all preclinical MP studies using discarded human livers and liver MP clinical trials, and discuss their results. We describe the different perfusion protocols, pitfalls in MP study design, and provide future perspectives. Recent trials in liver MP have revealed unique challenges beyond those seen in most clinical studies. Randomized trials, correct trial design, and interpretation of data are essential to generate the data necessary to prove if MP will be the new gold standard method of liver preservation.
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Affiliation(s)
- E Bonaccorsi-Riani
- Abdominal Transplant Unit, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium.,Pôle de Chirurgie Expérimentale et Transplantation, Université Catholique de Louvain, Brussels, Belgium
| | - I M A Brüggenwirth
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - J E Buchwald
- Division of Transplant, Department of Surgery, UMass Memorial Medical Center, University of Massachusetts, Worcester, Massachusetts
| | - S Iesari
- Pôle de Chirurgie Expérimentale et Transplantation, Université Catholique de Louvain, Brussels, Belgium.,Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - P N Martins
- Division of Transplant, Department of Surgery, UMass Memorial Medical Center, University of Massachusetts, Worcester, Massachusetts
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23
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von Moos S, Akalin E, Mas V, Mueller TF. Assessment of Organ Quality in Kidney Transplantation by Molecular Analysis and Why It May Not Have Been Achieved, Yet. Front Immunol 2020; 11:833. [PMID: 32477343 PMCID: PMC7236771 DOI: 10.3389/fimmu.2020.00833] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/14/2020] [Indexed: 12/20/2022] Open
Abstract
Donor organ shortage, growing waiting lists and substantial organ discard rates are key problems in transplantation. The critical importance of organ quality in determining long-term function is becoming increasingly clear. However, organ quality is difficult to predict. The lack of good measures of organ quality is a serious challenge in terms of acceptance and allocation of an organ. The underlying review summarizes currently available methods used to assess donor organ quality such as histopathology, clinical scores and machine perfusion characteristics with special focus on molecular analyses of kidney quality. The majority of studies testing molecular markers of organ quality focused on identifying organs at risk for delayed graft function, yet without prediction of long-term graft outcome. Recently, interest has emerged in looking for molecular markers associated with biological age to predict organ quality. However, molecular gene sets have not entered the clinical routine or impacted discard rates so far. The current review critically discusses the potential reasons why clinically applicable molecular quality assessment using early kidney biopsies might not have been achieved yet. Besides a critical analysis of the inherent limitations of surrogate markers used for organ quality, i.e., delayed graft function, the intrinsic methodological limitations of studies assessing organ quality will be discussed. These comprise the multitude of unpredictable hits as well as lack of markers of nephron mass, functional reserve and regenerative capacity.
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Affiliation(s)
- Seraina von Moos
- Division of Nephrology, University Hospital Zürich, Zurich, Switzerland
| | - Enver Akalin
- Division of Transplantation Surgery, Montefiore Medical Center, New York City, NY, United States
| | - Valeria Mas
- Division Transplantation Surgery, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Thomas F. Mueller
- Division of Nephrology, University Hospital Zürich, Zurich, Switzerland
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24
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Abstract
PURPOSE OF REVIEW The shortage of kidneys for transplantation has led to an urgent need to efficiently utilize the available cadaveric kidneys. Efficient use of machine perfusion may potentially lead to increased use of marginal kidneys by lowering the incidence of delayed graft function (DGF) and improving graft outcomes. RECENT FINDINGS Machine perfusion has had a resurgence in the last 10-15 years over static cold storage (SCS). Hypothermic machine perfusion (HMP), the most commonly utilized type of machine perfusion reduces the rates of DGF when compared with SCS with a trend towards improving the overall graft survival. SUMMARY Despite reduction in the rates of DGF by HMP, its effect on long-term renal and patient outcomes is not clearly known. There is limited clinical literature in the use of normothermic machine perfusion (NMP) but a few pilot studies have shown its potential to resuscitate commonly discarded kidneys. In addition to preservation, machine perfusion also allows for various diagnostic and therapeutic interventions during the preservation period to assess and optimize the viability of the procured kidney.
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25
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Tingle SJ, Figueiredo RS, Moir JA, Goodfellow M, Thompson ER, Ibrahim IK, Bates L, Talbot D, Wilson CH. Hypothermic machine perfusion is superior to static cold storage in deceased donor kidney transplantation: A meta-analysis. Clin Transplant 2020; 34:e13814. [PMID: 32031711 DOI: 10.1111/ctr.13814] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/27/2019] [Accepted: 02/03/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND There remains a lack of consensus on the optimal storage method for deceased donor kidneys. This meta-analysis compares storage with hypothermic machine perfusion (HMP) vs traditional static cold storage (SCS). METHODS The Cochrane Kidney and Transplant Specialised Register was searched to identify (quasi-) randomized controlled trials (RCTs) to include in our meta-analysis. PRISMA guidelines were used to perform and write this review. RESULTS There is high-certainty evidence that HMP reduces the risk of delayed graft function (DGF) when compared to SCS (2138 participants from 14 studies, RR = 0.77; 0.67-0.90, P = .0006). This benefit is significant in both donation following circulatory death (DCD; 772 patients from seven studies, RR = 0.75; 0.64-0.87, P = .0002) and donation following brainstem death (DBD) grafts (971 patients from four studies, RR = 0.78; 0.65-0.93, P = .006). The number of perfusions required to prevent one episode of DGF was 7.26 and 13.60 in DCD and DBD grafts, respectively. There is strong evidence that HMP also improves graft survival in both DBD and DCD grafts, at both 1 and 3 years. Economic analyses suggest HMP is cost-saving at 1 year compared with SCS. CONCLUSION Hypothermic machine perfusion is superior to SCS in deceased donor renal transplantation. Direct comparisons with normothermic machine perfusion in RCTs are essential to identify optimal preservation methods in kidney transplantation.
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Affiliation(s)
- Samuel J Tingle
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rodrigo S Figueiredo
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom
| | - John Ag Moir
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom
| | - Michael Goodfellow
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Emily R Thompson
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Ibrahim K Ibrahim
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Lucy Bates
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - David Talbot
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom
| | - Colin H Wilson
- Department of HPB and Transplant Surgery, Freeman Hospital, Newcastle upon Tyne, United Kingdom.,Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
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26
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Adani GL, Pravisani R, Crestale S, Baccarani U, Scott CA, D'Alì L, DeMaglio G, Tulissi P, Vallone C, Isola M, Righi E, Pizzolito S, Di Loreto C, Risaliti A. Effects of Delayed Hypothermic Machine Perfusion on Kidney Grafts with a Preliminary Period of Static Cold Storage and a Total Cold Ischemia Time of Over 24 Hours. Ann Transplant 2020; 25:e918997. [PMID: 32094320 PMCID: PMC7059438 DOI: 10.12659/aot.918997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Hypothermic machine perfusion (HMP) appears to exert a reconditioning effect on the ischemic damage of kidney grafts. However, some concerns still remain about its real effectiveness when it is delayed after a preliminary period of static cold storage (SCS) or with prolonged overall cold ischemia time (CIT). Material/Methods The effect of HMP on hemodynamic, metabolic, histological and ultrastructural features of grafts was investigated in 21 single-kidney grafts treated with a delayed HMP after SCS and with a total CIT of over 24 h. Results The mean CIT, SCS, and HMP times were 29 h, 12 h, and 18 h, respectively. Longer SCS was associated with higher vascular resistance and lower arterial flow. In the pre- vs. post-HMP comparison, a significant decrease in arterial resistances and increase of flow were recorded. The hemodynamic improvement was independent of HMP duration. The perfused grafts retained some metabolic activity, with a statistically significant decrease of pH, pO2, and glucose levels, and increase of lactates in the perfusion liquid, by the end of HMP. Longer SCS was associated with higher pH and greater pO2 decrease during HMP. Light microscopy and transmission electronic microscopy revealed no significant variations in nuclear, cytoplasmic, or ultrastructural damage. SCS, HMP, and CIT were not identified as risk factor for delayed graft function or rejection. Conclusions A delayed and extended HMP can recover the graft hemodynamic function, maintain some metabolic activity, and stabilize the accumulated ischemic damage due to a preliminary SCS.
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Affiliation(s)
- Gian Luigi Adani
- Department of Medicine, General Surgery and Transplantation, Academic Hospital (ASUIUD), University of Udine, Udine, Italy
| | - Riccardo Pravisani
- Department of Medicine, General Surgery and Transplantation, Academic Hospital (ASUIUD), University of Udine, Udine, Italy
| | - Sara Crestale
- Department of Medicine, General Surgery and Transplantation, Academic Hospital (ASUIUD), University of Udine, Udine, Italy
| | - Umberto Baccarani
- Department of Medicine, General Surgery and Transplantation, Academic Hospital (ASUIUD), University of Udine, Udine, Italy
| | - Cathryn A Scott
- Institute of Pathology - Department of Medicine, University of Udine, Udine, Italy
| | - Lorenzo D'Alì
- Institute of Pathology - Department of Medicine, University of Udine, Udine, Italy
| | - Giovanna DeMaglio
- Department of Pathology, Integrated University Healthcare of Udine (ASUIUD), Udine, Italy
| | - Patrizia Tulissi
- Department of Nephrology, Dialysis and Transplantation, Integrated University Healthcare of Udine (ASUIUD), Udine, Italy
| | - Clotilde Vallone
- Department of Nephrology, Dialysis and Transplantation, Integrated University Healthcare of Udine (ASUIUD), Udine, Italy
| | - Miriam Isola
- Division of Medical Statistic - Department of Medicine, University of Udine, Udine, Italy
| | - Elda Righi
- Department of Infectious Diseases, University of Verona, Verona, Italy
| | - Stefano Pizzolito
- Department of Pathology, Integrated University Healthcare of Udine (ASUIUD), Udine, Italy
| | - Carla Di Loreto
- Institute of Pathology - Department of Medicine, University of Udine, Udine, Italy
| | - Andrea Risaliti
- Department of Medicine, General Surgery and Transplantation, Academic Hospital (ASUIUD), University of Udine, Udine, Italy
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27
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Windt DJ, Mehta R, Jorgensen DR, Bou‐Samra P, Hariharan S, Randhawa PS, Sood P, Molinari M, Wijkstrom M, Ganoza A, Tevar AD. Donor acute kidney injury and its effect on 1‐year post‐transplant kidney allograft fibrosis. Clin Transplant 2020; 34:e13770. [DOI: 10.1111/ctr.13770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 11/27/2019] [Accepted: 12/04/2019] [Indexed: 01/03/2023]
Affiliation(s)
- Dirk J. Windt
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Rajil Mehta
- Division of Transplant Nephrology Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Dana R. Jorgensen
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Patrick Bou‐Samra
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Sundaram Hariharan
- Division of Transplant Nephrology Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Parmjeet S. Randhawa
- Division of Transplant Pathology Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Puneet Sood
- Division of Transplant Nephrology Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Michele Molinari
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Martin Wijkstrom
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Armando Ganoza
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
| | - Amit D. Tevar
- Division of Transplant Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh Medical Center Pittsburgh PA USA
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28
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Favi E, James A, Puliatti C, Whatling P, Ferraresso M, Rui C, Cacciola R. Utility and safety of early allograft biopsy in adult deceased donor kidney transplant recipients. Clin Exp Nephrol 2019; 24:356-368. [PMID: 31768863 DOI: 10.1007/s10157-019-01821-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 11/12/2019] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Delayed graft function (DGF) is considered a risk factor for rejection after kidney transplantation (KTx). Clinical guidelines recommend weekly allograft biopsy until DGF resolves. However, who may benefit the most from such an aggressive policy and when histology should be evaluated remain debated. METHODS We analyzed 223 biopsies in 145 deceased donor KTx treated with basiliximab or anti-thymocyte globulin (rATG) and calcineurin inhibitor-based maintenance. The aim of the study was to assess the utility and safety of biopsies performed within 28 days of transplant. Relationships between transplant characteristics, indication, timing, and biopsy-related outcomes were evaluated. RESULTS Main indication for biopsy was DGF (87.8%) followed by lack of improvement in graft function (9.2%), and worsening graft function (3.1%). Acute tubular necrosis was the leading diagnosis (89.8%) whereas rejection was detected in 8.2% specimens. Rejection was more frequent in patients biopsied due to worsening graft function or lack of improvement in graft function than DGF (66.7% vs. 3.5%; P = 0.0075 and 33.3% vs. 3.5%; P = 0.0104, respectively) and in biopsies performed between day 15 and 28 than from day 0 to 14 (31.2% vs. 3.7%; P = 0.0002). Complication rate was 4.1%. Management was affected by the information gained with histology in 12.2% cases (7% considering DGF). CONCLUSIONS In low-immunological risk recipients treated with induction and calcineurin inhibitors maintenance, protocol biopsies obtained within 2 weeks of surgery to rule out rejection during DGF do not necessarily offer a favourable balance between risks and benefits. In these patients, a tailored approach may minimize complications thus optimizing results.
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Affiliation(s)
- Evaldo Favi
- Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza n. 35, 20122, Milan, Italy.
| | - Ajith James
- Nephrology, Royal London Hospital, Barts Health NHS Trust, Whitechapel Rd, London, E1 1BB, UK
| | - Carmelo Puliatti
- Organ Transplantation, Parma University Hospital, Via A. Gramsci 14, 43126, Parma, Italy
| | - Phil Whatling
- Nephrology, Royal London Hospital, Barts Health NHS Trust, Whitechapel Rd, London, E1 1BB, UK
| | - Mariano Ferraresso
- Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza n. 35, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Via Festa del Perdono 7, 20122, Milan, Italy
| | - Chiara Rui
- Renal Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza n. 35, 20122, Milan, Italy
| | - Roberto Cacciola
- HPB and Transplant Unit, Department of Surgery, Tor Vergata University, Viale Oxford 81, 00133, Rome, Italy
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29
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Ries WP, Marie Y, Patel K, Turnbull C, Smith TB, Jamil NSM, Caldwell H, Telfer R, Neil DAH, Nath J, Inston NG. A simple ex vivo model of human renal allograft preservation using the gonadal vein. Ann R Coll Surg Engl 2019; 101:609-616. [PMID: 31508984 PMCID: PMC6818055 DOI: 10.1308/rcsann.2019.0107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2019] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Hypothermic machine perfusion, an organ preservation modality, involves flow of chilled preservation fluid through an allograft's vasculature. This study describes a simple, reproducible, human model that allows for interrogation of flow effects during ex vivo organ perfusion. MATERIALS AND METHODS Gonadal veins from deceased human renal allografts were subjected to either static cold storage or hypothermic machine perfusion for up to 24 hours. Caspase-3, Krüppel-like factor 2 expression and electron microscopic analysis were compared between 'flow' and 'no-flow' conditions, with living donor gonadal vein sections serving as negative controls. RESULTS The increase in caspase-3 expression was less pronounced for hypothermic machine-perfused veins compared with static cold storage (median-fold increase 1.2 vs 2.3; P < 0.05). Transmission electron microscopy provided ultrastructural corroboration of endothelial cell apoptosis in static cold storage conditions. For static cold storage preserved veins, Krüppel-like factor 2 expression diminished in a time-dependent manner between baseline and 12 hours (P < 0.05) but was abrogated and reversed by hypothermic machine perfusion (P < 0.05). CONCLUSIONS Our methodology is a simple, reproducible and successful model of ex vivo perfusion in the context of human organ preservation. To demonstrate the model's utility, we establish that two widely used markers of endothelial health (caspase-3 and Krüppel-like factor 2) differ between the flow and no-flow conditions of the two predominant kidney preservation modalities. These findings suggest that ex vivo perfusion may mediate the induction of a biochemically favourable endothelial niche which may contribute tohypothermic machine perfusion's association with improved renal transplantation outcomes.
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Affiliation(s)
- WP Ries
- Medical School, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Y Marie
- Department of Renal Surgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - K Patel
- Department of Renal Surgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - C Turnbull
- Medical School, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - TB Smith
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - NSM Jamil
- Department of Cellular Pathology, Royal Victoria Infirmary, Durham and Darlington NHS Foundation Trust, Newcastle Upon Tyne, UK
| | - H Caldwell
- Division of Pathology Laboratories, University of Edinburgh, Western General Hospital, NHS Lothian, Edinburgh, UK
| | - R Telfer
- Medical School, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - DAH Neil
- Department of Histopathology, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - J Nath
- Department of Renal Surgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - NG Inston
- Department of Renal Surgery, Queen Elizabeth Hospital, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
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30
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de Vries RJ, Yarmush M, Uygun K. Systems engineering the organ preservation process for transplantation. Curr Opin Biotechnol 2019; 58:192-201. [PMID: 31280087 PMCID: PMC7261508 DOI: 10.1016/j.copbio.2019.05.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/29/2019] [Accepted: 05/27/2019] [Indexed: 12/23/2022]
Abstract
Improving organ preservation and extending the preservation time would have game-changing effects on the current practice of organ transplantation. Machine perfusion has emerged as an improved preservation technology to expand the donor pool, assess graft viability and ensure adequate graft function. However, its efficacy in extending the preservation time is limited. Subzero organ preservation does hold the promise to significantly extend the preservation time and recent advances in cryobiology bring it closer to clinical translation. In this review, we aim to broaden the perspective in the field from a focus on these individual technologies to that of a systems engineering. This would enable the creation of a preservation process that integrates the benefits of machine perfusion with those of subzero preservation, with the ultimate goal to provide on demand availability of donor organs through organ banking.
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Affiliation(s)
- Reinier J de Vries
- Center for Engineering in Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Shriners Hospital for Children, Boston, MA, USA; Department of Surgery, University of Amsterdam, Amsterdam, The Netherlands
| | - Martin Yarmush
- Center for Engineering in Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Shriners Hospital for Children, Boston, MA, USA; Department of Biomedical Engineering, Rutgers University, New Brunswick, NJ, USA
| | - Korkut Uygun
- Center for Engineering in Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA; Shriners Hospital for Children, Boston, MA, USA.
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31
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Stallone G, Grandaliano G. To discard or not to discard: transplantation and the art of scoring. Clin Kidney J 2019; 12:564-568. [PMID: 31411597 PMCID: PMC6671422 DOI: 10.1093/ckj/sfz032] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Indexed: 01/06/2023] Open
Abstract
The growing gap between inadequate supply and constantly high demand for kidney transplantation observed in the last two decades led to exploring the possibility of using organs from older donors with an increasing number of comorbidities. The main issue in this scenario is to identify transplantable organs and to allocate them to the most suitable recipients. A great number of clinical investigations proposed several acceptance/allocation criteria to reduce the discard rate of these kidneys and to improve their outcome, including histological features at the time of transplant. Despite the widespread use of several histological scoring systems, there is no consensus on their value in predicting allograft survival and there is established evidence that histological analysis is the most common reason to discard expanded criteria donor kidneys. To overcome this issue, a clinical scoring system, the Kidney Donor Profile Index (KDPI), was developed on the basis of easily accessible donor features. The KDPI score, adopted in the new US allocation procedure, has good reproducibility but presents several limitations, as suggested also in this issue of Clinical Kidney Journal. This observation should stimulate the search for novel scores combining clinical, histological and molecular features in an attempt to improve the decision process.
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Affiliation(s)
- Giovanni Stallone
- Department of Medical and Surgical Sciences, Nephrology, Dialysis and Transplantation Unit, University of Foggia, Foggia, Italy
| | - Giuseppe Grandaliano
- Department of Medical and Surgical Sciences, Nephrology, Dialysis and Transplantation Unit, University of Foggia, Foggia, Italy
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32
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Vectisol Formulation Enhances Solubility of Resveratrol and Brings Its Benefits to Kidney Transplantation in a Preclinical Porcine Model. Int J Mol Sci 2019; 20:ijms20092268. [PMID: 31071925 PMCID: PMC6540035 DOI: 10.3390/ijms20092268] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/03/2019] [Accepted: 05/05/2019] [Indexed: 02/07/2023] Open
Abstract
Current organ shortages have led centers to extend the acceptance criteria for organs, increasing the risk for adverse outcomes. Current preservation protocols have not been adapted so as to efficiently protect these organs. Herein, we target oxidative stress, the key mechanism of ischemia reperfusion injury. Vectisol® is a novel antioxidant strategy based on the encapsulation of resveratrol into a cyclodextrin, increasing its bioavailability. We tested this compound as an additive to the most popular static preservation solutions and machine perfusion (LifePort) in a preclinical pig model of kidney autotransplantation. In regard to static preservation, supplementation improved glomerular filtration and proximal tubular function early recovery. Extended follow-up confirmed the higher level of protection, slowing chronic loss of function (creatininemia and proteinuria) and the onset of histological lesions. Regarding machine perfusion, the use of Vectisol® decreased oxidative stress and apoptosis at the onset of reperfusion (30 min post declamping). Improved quality was confirmed with decreased early levels of circulating SOD (Superoxide Dismutase) and ASAT (asparagine amino transferase). Supplementation slowed the onset of chronic loss of function, as well as interstitial fibrosis and tubular atrophy. The simple addition of Vectisol® to the preservation solution significantly improved the performance of organ preservation, with long-term effects on the outcome. This strategy is thus a key player for future multi-drug therapy aimed at ischemia reperfusion in transplantation.
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33
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Patel SVB, Sener A, Bhattacharjee RN, Luke PPW. Machine preservation of donor kidneys in transplantation. Transl Androl Urol 2019; 8:118-125. [PMID: 31080771 DOI: 10.21037/tau.2019.03.06] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
With increasing demands for 'less than ideal' kidneys for transplantation, machine perfusion of kidneys has been utilized to improve the preservation of kidneys during storage. Hypothermic machine perfusion (HMP) of renal allografts has been shown to reduce delayed graft function rates in both expanded criteria and donation after cardiac death renal allografts. However, the beneficial impact upon long-term graft function is unclear. There has been emerging evidence that both subnormothermic (room temperature) and normothermic machine perfusion (NMP) of allografts have beneficial effects with regards to early graft function, survival and injury in pre-clinical and early clinical studies. Additionally, machine perfusion allows functional assessment of the organ prior to transplantation. Ultimately, the greatest benefit of machine perfusion may be the ability to treat the organ with agents to protect the graft against ischemia reperfusion injury, while awaiting transplantation.
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Affiliation(s)
- Sanjay V B Patel
- Multi Organ Transplant Program, London Health Sciences Centre, London, ON, Canada.,Department of Surgery, Western University, London, ON, Canada.,Matthew Mailing Centre for Translational Transplantation Studies, London, ON, Canada
| | - Alp Sener
- Multi Organ Transplant Program, London Health Sciences Centre, London, ON, Canada.,Department of Surgery, Western University, London, ON, Canada.,Matthew Mailing Centre for Translational Transplantation Studies, London, ON, Canada
| | - Rabindra N Bhattacharjee
- Multi Organ Transplant Program, London Health Sciences Centre, London, ON, Canada.,Matthew Mailing Centre for Translational Transplantation Studies, London, ON, Canada
| | - Patrick P W Luke
- Multi Organ Transplant Program, London Health Sciences Centre, London, ON, Canada.,Department of Surgery, Western University, London, ON, Canada.,Matthew Mailing Centre for Translational Transplantation Studies, London, ON, Canada
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34
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The Benefits of Hypothermic Machine Preservation and Short Cold Ischemia Times in Deceased Donor Kidneys. Transplantation 2019; 102:1344-1350. [PMID: 29570164 DOI: 10.1097/tp.0000000000002188] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Hypothermic machine perfusion (HMP) of deceased donor kidneys is associated with better outcome when compared to static cold storage (CS). Nevertheless, there is little evidence whether kidneys with short cold ischemia time (CIT) also benefit from HMP and whether HMP can safely extend CIT. METHODS We analyzed prospectively collected data from the Machine Preservation Trial, an international randomized controlled trial. Seven hundred fifty-two consecutive renal transplants were included: 1 kidney of each of the 376 donors was preserved by HMP, the contralateral organ was preserved by CS. RESULTS The mean CIT was 3:05 PM (SD, 4:58 AM). A subgroup analysis was performed, groups were based on CIT duration: 0 to 10 hours, 10 to 15 hours, 15 to 20 hours, or 20 hours or longer. Delayed graft function (DGF) incidence in the subgroup with up to 10 hours CIT was 6.0% (N = 3/50) in the HMP arm and 28.1% (N = 18/64) in the CS arm (univariable P = 0.002; multivariable odds ratio [OR], 0.02; P = 0.007). Cold ischemia time remained an independent risk factor for DGF for machine perfused kidneys recovered from donation after brain death donors (OR, 1.06; 95% confidence interval [CI], 1.017-1.117; P = 0.008), donation after circulatory death donors (OR, 1.13; 95% CI, 1.035-1.233; P = 0.006) and expanded criteria donors (OR, 1.14; 95% CI, 1.057-1.236; P = 0.001). CONCLUSIONS In conclusion, HMP resulted in remarkably lower rates of DGF in renal grafts that were transplanted after a short CIT. Also, CIT remained an independent risk factor for DGF in HMP-preserved kidneys.
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35
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van Smaalen TC, Ellis SR, Mascini NE, Siegel TP, Cillero-Pastor B, Hillen LM, van Heurn LWE, Peutz-Kootstra CJ, Heeren RMA. Rapid Identification of Ischemic Injury in Renal Tissue by Mass-Spectrometry Imaging. Anal Chem 2019; 91:3575-3581. [PMID: 30702282 PMCID: PMC6581420 DOI: 10.1021/acs.analchem.8b05521] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 01/31/2019] [Indexed: 12/14/2022]
Abstract
The increasing analytical speed of mass-spectrometry imaging (MSI) has led to growing interest in the medical field. Acute kidney injury is a severe disease with high morbidity and mortality. No reliable cut-offs are known to estimate the severity of acute kidney injury. Thus, there is a need for new tools to rapidly and accurately assess acute ischemia, which is of clinical importance in intensive care and in kidney transplantation. We investigated the value of MSI to assess acute ischemic kidney tissue in a porcine model. A perfusion model was developed where paired kidneys received warm (severe) or cold (minor) ischemia ( n = 8 per group). First, ischemic tissue damage was systematically assessed by two blinded pathologists. Second, MALDI-MSI of kidney tissues was performed to study the spatial distributions and compositions of lipids in the tissues. Histopathological examination revealed no significant difference between kidneys, whereas MALDI-MSI was capable of a detailed discrimination of severe and mild ischemia by differential expression of characteristic lipid-degradation products throughout the tissue within 2 h. In particular, lysolipids, including lysocardiolipins, lysophosphatidylcholines, and lysophosphatidylinositol, were dramatically elevated after severe ischemia. This study demonstrates the significant potential of MSI to differentiate and identify molecular patterns of early ischemic injury in a clinically acceptable time frame. The observed changes highlight the underlying biochemical processes of acute ischemic kidney injury and provide a molecular classification tool that can be deployed in assessment of acute ischemic kidney injury.
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Affiliation(s)
- T. C. van Smaalen
- Department
of Surgery, Maastricht University Medical
Center+, 6229 HX Maastricht, The Netherlands
| | - S. R. Ellis
- The
Maastricht Multimodal Molecular Imaging Institute (M4I), Division
of Imaging Mass Spectrometry, Maastricht
University, 6200 MD Maastricht, The Netherlands
| | - N. E. Mascini
- The
Maastricht Multimodal Molecular Imaging Institute (M4I), Division
of Imaging Mass Spectrometry, Maastricht
University, 6200 MD Maastricht, The Netherlands
| | - T. Porta Siegel
- The
Maastricht Multimodal Molecular Imaging Institute (M4I), Division
of Imaging Mass Spectrometry, Maastricht
University, 6200 MD Maastricht, The Netherlands
| | - B. Cillero-Pastor
- The
Maastricht Multimodal Molecular Imaging Institute (M4I), Division
of Imaging Mass Spectrometry, Maastricht
University, 6200 MD Maastricht, The Netherlands
| | - L. M. Hillen
- Department
of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+, 6229 HX Maastricht, The Netherlands
- GROW-School
for Oncology and Developmental Biology, Maastricht University Medical Center+, 6229 HX Maastricht, The Netherlands
| | - L. W. E. van Heurn
- Department
of Surgery, Maastricht University Medical
Center+, 6229 HX Maastricht, The Netherlands
| | - C. J. Peutz-Kootstra
- Department
of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center+, 6229 HX Maastricht, The Netherlands
| | - R. M. A. Heeren
- The
Maastricht Multimodal Molecular Imaging Institute (M4I), Division
of Imaging Mass Spectrometry, Maastricht
University, 6200 MD Maastricht, The Netherlands
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36
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Hamano I, Hatakeyama S, Yamamoto H, Fujita T, Murakami R, Shimada M, Imai A, Yoneyama T, Yoneyama T, Hashimoto Y, Koie T, Narumi S, Saitoh H, Suzuki T, Tomita H, Ohyama C. Impact of distance between donor and recipient hospitals on cadaveric kidney transplantation outcomes. Clin Exp Nephrol 2019; 23:807-813. [PMID: 30809748 DOI: 10.1007/s10157-019-01710-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/30/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND The impact of distance between donor and recipient hospitals on outcomes in cadaveric kidney transplantations is unknown. We investigated the association between inter-hospital distance and outcomes in cadaveric kidney transplantations in Japan. METHODS We retrospectively analyzed 363 cadaveric kidney transplantations between 2002 and 2017 in Japan. Inter-hospital distance, graft transport time, total ischemic time (TIT), and graft survival were compared between our hospital and national transplantation cohort in Japan. Estimated glomerular filtration rate (eGFR) 1 month and 1 year after transplantation was compared between cadaveric and living-donor kidney transplantations in our hospitals. Additionally, inter-hospital distances among the seven geographical regions in Japan were assessed. RESULTS There were 12 and 351 cadaveric kidney transplantations at our hospital and in Japan, respectively. Mean inter-hospital distance at our hospital (217 ± 121 km) was significantly longer than that of the national cohort (53 ± 80 km; P < 0.001). Mean TIT and graft survival for our hospital and national cohort were 539 ± 200 min and 91% and 491 ± 193 min and 81%, respectively. Mean eGFRs 1 year after cadaveric and living-donor transplantations at our hospitals were comparable (47 ± 16 vs. 47 ± 15 mL/min/1.73 m2). The comparison among seven regions in Japan indicated a regional difference in inter-hospital distance with an association between area (km2) and inter-hospital distance (km). CONCLUSIONS Despite the longer inter-hospital distance at our hospital, TIT and transplant outcomes were acceptable in our cases. In addition, geographical inequity in graft allocation in Japan was suggested.
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Affiliation(s)
- Itsuto Hamano
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-chou, Hirosaki, 036-8562, Japan.
| | - Hayato Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-chou, Hirosaki, 036-8562, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Michiko Shimada
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Atsushi Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-chou, Hirosaki, 036-8562, Japan
| | - Tohru Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takahiro Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-chou, Hirosaki, 036-8562, Japan
| | - Yasuhiro Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takuya Koie
- Department of Urology, Gifu University School of Medicine, Gifu, Japan
| | - Shunji Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - Hisao Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - Tadashi Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifu-chou, Hirosaki, 036-8562, Japan.,Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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37
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Cardinal H, Lamarche F, Grondin S, Marsolais P, Lagacé AM, Duca A, Albert M, Houde I, Boucher A, Masse M, Baran D, Bouchard J. Organ donor management and delayed graft function in kidney transplant recipients: A multicenter retrospective cohort study. Am J Transplant 2019; 19:277-284. [PMID: 30253052 DOI: 10.1111/ajt.15127] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/19/2018] [Accepted: 09/19/2018] [Indexed: 01/25/2023]
Abstract
Meeting donor management goals (DMGs) has been reported to decrease the incidence of delayed graft function (DGF) after kidney transplant, but whether this relationship is independent of cold machine perfusion is unclear. We aimed to determine whether meeting DMGs is associated with a reduced incidence of DGF, independent of the use of machine perfusion. We collected data on consecutive brain-dead donors and their KT recipients (KTRs) between June 2013 and December 2016 in 5 adult transplant centers. We evaluated whether DMGs were met at donor neurologic death (DND) and later time points. We defined a priori meeting optimal DMG as achieving ≥7 DMGs. Generalized estimating equations were used to predict DGF. Among 122 donors, 34% were extended-criteria donors (ECDs). The number of DMGs met increased over time (5.6 ± 1.4 at DND and 6.1 ± 1.3 at organ procurement [P < .001]). DGF occurred in 23% of 214 KTRs, and 55% received organs placed on machine perfusion. In multivariate analysis, ECD (odds ratio [OR] 2.24, 95% confidence interval [CI] 1.13-4.45), use of machine perfusion (OR 0.45, 95% CI 0.22-0.94), and optimal DMG at DND (OR 0.39, 95% CI 0.16-0.99) were associated with DGF. Early achievement of DMGs was associated with a reduced risk of the development of DGF, independent of the use of machine perfusion.
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Affiliation(s)
- Heloise Cardinal
- Department of Medicine, Centre Hospitalier Universitaire de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Florence Lamarche
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Stéphanie Grondin
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Pierre Marsolais
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Anne-Marie Lagacé
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Anatolie Duca
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Martin Albert
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Isabelle Houde
- Department of Medicine, Centre Hospitalier Universitaire de Québec, Quebec City, Quebec, Canada
| | - Anne Boucher
- Department of Medicine, Hôpital Maisonneuve-Rosemont, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Mélanie Masse
- Department of Medicine, Centre Hospitalier Universitaire de Sherbrooke, Sherbroooke, Quebec, Canada
| | - Dana Baran
- Department of Medicine, McGill University Health Centre, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Josée Bouchard
- Department of Medicine, Hôpital du Sacré-Coeur de Montréal, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
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38
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Peng P, Ding Z, He Y, Zhang J, Wang X, Yang Z. Hypothermic Machine Perfusion Versus Static Cold Storage in Deceased Donor Kidney Transplantation: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Artif Organs 2018; 43:478-489. [PMID: 30282122 DOI: 10.1111/aor.13364] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 09/27/2018] [Indexed: 01/17/2023]
Abstract
Static cold storage (SCS) and hypothermic machine perfusion (HMP) are two primary options for renal allograft preservation. Compared with SCS, HMP decreased the incidence of delayed graft function (DGF) and protected graft function. However, more evidence is still needed to prove the advantages of the HMP. In this study, the outcomes of kidney grafts from the two preservation methods were compared by conducting a systematic review and meta-analysis. Randomized controlled trials (RCTs) comparing the effect of hypothermic machine perfusion and static cold storage in deceased donor kidney transplantation were identified through searches of the MEDLINE, EMBASE, and Cochrane databases between January 1, 1980 and December 30, 2017. The primary endpoints were delayed graft function and graft survival. Secondary endpoints included primary non-function (PNF), graft renal function, duration of DGF, acute rejection, postoperative hospital stay and patient survival. Summary effects were calculated as risk ratio (RR) with 95% confidence interval (CI) or mean difference (MD) with 95% confidence intervals (CI). A total of 13 RCTs were included, including 2048 kidney transplant recipients. The results indicated that compared with SCS, HMP decreased the incidence of DGF (RR 0.78, 95% CI 0.69-0.87, P < 0.0001), and improved the graft survival at 3 years (RR 1.06, 95% CI 1.02-1.11, P = 0.009). There was no significant difference in other endpoints. HMP might be a more desirable method of preservation for kidney grafts. The long-term outcomes of kidney allografts stored by hypothermic machine perfusion still need to be further investigated.
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Affiliation(s)
- Panxin Peng
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.,Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Zhenshan Ding
- Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Yuhui He
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.,Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Jun Zhang
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.,Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Xuming Wang
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.,Department of Urology, China-Japan Friendship Hospital, Beijing, China
| | - Zhihao Yang
- Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China.,Department of Urology, China-Japan Friendship Hospital, Beijing, China
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39
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Ravaioli M, De Pace V, Comai G, Capelli I, Baraldi O, D'Errico A, Bertuzzo VR, Del Gaudio M, Zanfi C, D'Arcangelo GL, Cuna V, Siniscalchi A, Sangiorgi G, La Manna G. Preliminary experience of sequential use of normothermic and hypothermic oxygenated perfusion for donation after circulatory death kidney with warm ischemia time over the conventional criteria - a retrospective and observational study. Transpl Int 2018; 31:1233-1244. [DOI: 10.1111/tri.13311] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Matteo Ravaioli
- Unit of General and Transplant Surgery; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Vanessa De Pace
- Unit of General and Transplant Surgery; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Giorgia Comai
- Unit of Nephrology; Dialysis and Transplantation; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Irene Capelli
- Unit of Nephrology; Dialysis and Transplantation; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Olga Baraldi
- Unit of Nephrology; Dialysis and Transplantation; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Antonietta D'Errico
- Unit of Oncology and Transplant Pathology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Valentina Rosa Bertuzzo
- Unit of General and Transplant Surgery; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Massimo Del Gaudio
- Unit of General and Transplant Surgery; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Chiara Zanfi
- Unit of General and Transplant Surgery; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Giovanni Liviano D'Arcangelo
- Unit of Nephrology; Dialysis and Transplantation; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Vania Cuna
- Unit of Nephrology; Dialysis and Transplantation; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Antonio Siniscalchi
- Unit of Anesthesiology; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Gabriela Sangiorgi
- Emilia Romagna Transplant Reference Center; Department of Medical and Surgical Sciences; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
| | - Gaetano La Manna
- Unit of Nephrology; Dialysis and Transplantation; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna Sant'Orsola Malpighi Hospital; Bologna Italy
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Zhao H, Alam A, Soo AP, George AJT, Ma D. Ischemia-Reperfusion Injury Reduces Long Term Renal Graft Survival: Mechanism and Beyond. EBioMedicine 2018; 28:31-42. [PMID: 29398595 PMCID: PMC5835570 DOI: 10.1016/j.ebiom.2018.01.025] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 01/10/2023] Open
Abstract
Ischemia-reperfusion injury (IRI) during renal transplantation often initiates non-specific inflammatory responses that can result in the loss of kidney graft viability. However, the long-term consequence of IRI on renal grafts survival is uncertain. Here we review clinical evidence and laboratory studies, and elucidate the association between early IRI and later graft loss. Our critical analysis of previous publications indicates that early IRI does contribute to later graft loss through reduction of renal functional mass, graft vascular injury, and chronic hypoxia, as well as subsequent fibrosis. IRI is also known to induce kidney allograft dysfunction and acute rejection, reducing graft survival. Therefore, attempts have been made to substitute traditional preserving solutions with novel agents, yielding promising results. Ischaemia reperfusion injury (IRI) potentiates delayed renal graft function and causes reduction in renal graft survival IRI causes innate immune system activation, hypoxic injury, inflammation and graft vascular disease Reducing prolonged cold ischaemic time improves graft survival Novel protective strategies include mesenchymal stem cells, machine perfusion, and ex vivo preservation solution saturated with gas. Further studies are needed to investigate the long-term effects of novel ex vivo preservation agents
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Affiliation(s)
- Hailin Zhao
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Azeem Alam
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Aurelie Pac Soo
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | | | - Daqing Ma
- Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London, UK.
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Presence of Cytotoxic Extracellular Histones in Machine Perfusate of Donation After Circulatory Death Kidneys. Transplantation 2017; 101:e93-e101. [PMID: 27906828 DOI: 10.1097/tp.0000000000001590] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Extracellular histones are cytotoxic molecules that are related to cell stress and death. They have been shown to play a crucial role in multiple pathophysiologic processes like sepsis, inflammation, vascular dysfunction, and thrombosis. Their role in organ donation and graft function and survival is still unknown. The aim of this study was to assess whether an association exists between the presence of extracellular histones in machine perfusates and deceased donor kidney viability. METHODS Machine perfusates of 390 donations after circulatory death kidneys were analyzed for histone concentration, and corresponding graft function and survival were assessed. RESULTS Extracellular histone concentrations were significantly higher in perfusates of kidneys with posttransplant graft dysfunction (primary nonfunction and delayed graft function) and were an independent risk factor for delayed graft function (odds ratio, 2.152; 95% confidence interval [95% CI], 1.199-3.863) and 1 year graft failure (hazard ratio, 1.386; 95% CI, 1.037-1.853), but not for primary nonfunction (odds ratio, 1.342; 95% CI, 0.900-2.002). One year graft survival was 12% higher in the group with low histone concentrations (P = 0.008) as compared with the group that contained higher histone concentrations. CONCLUSIONS This study warrants future studies to probe for a possible role of cytotoxic extracellular histones in organ viability and suggests that quantitation of extracellular histones might contribute to assessment of posttransplant graft function and survival.
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Sadowsky D, Zamora R, Barclay D, Yin J, Fontes P, Vodovotz Y. Machine Perfusion of Porcine Livers with Oxygen-Carrying Solution Results in Reprogramming of Dynamic Inflammation Networks. Front Pharmacol 2016; 7:413. [PMID: 27867357 PMCID: PMC5095594 DOI: 10.3389/fphar.2016.00413] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 10/18/2016] [Indexed: 01/28/2023] Open
Abstract
Background:Ex vivo machine perfusion (MP) can better preserve organs for transplantation. We have recently reported on the first application of an MP protocol in which liver allografts were fully oxygenated, under dual pressures and subnormothermic conditions, with a new hemoglobin-based oxygen carrier (HBOC) solution specifically developed for ex vivo utilization. In those studies, MP improved organ function post-operatively and reduced inflammation in porcine livers. Herein, we sought to refine our knowledge regarding the impact of MP by defining dynamic networks of inflammation in both tissue and perfusate. Methods: Porcine liver allografts were preserved either with MP (n = 6) or with cold static preservation (CSP; n = 6), then transplanted orthotopically after 9 h of preservation. Fourteen inflammatory mediators were measured in both tissue and perfusate during liver preservation at multiple time points, and analyzed using Dynamic Bayesian Network (DyBN) inference to define feedback interactions, as well as Dynamic Network Analysis (DyNA) to define the time-dependent development of inflammation networks. Results: Network analyses of tissue and perfusate suggested an NLRP3 inflammasome-regulated response in both treatment groups, driven by the pro-inflammatory cytokine interleukin (IL)-18 and the anti-inflammatory mediator IL-1 receptor antagonist (IL-1RA). Both DyBN and DyNA suggested a reduced role of IL-18 and increased role of IL-1RA with MP, along with increased liver damage with CSP. DyNA also suggested divergent progression of responses over the 9 h preservation time, with CSP leading to a stable pattern of IL-18-induced liver damage and MP leading to a resolution of the pro-inflammatory response. These results were consistent with prior clinical, biochemical, and histological findings after liver transplantation. Conclusion: Our results suggest that analysis of dynamic inflammation networks in the setting of liver preservation may identify novel diagnostic and therapeutic modalities.
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Affiliation(s)
- David Sadowsky
- Department of Surgery, University of Pittsburgh, Pittsburgh PA, USA
| | - Ruben Zamora
- Department of Surgery, University of Pittsburgh, PittsburghPA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, PittsburghPA, USA
| | - Derek Barclay
- Department of Surgery, University of Pittsburgh, Pittsburgh PA, USA
| | - Jinling Yin
- Department of Surgery, University of Pittsburgh, Pittsburgh PA, USA
| | - Paulo Fontes
- Department of Surgery, University of Pittsburgh, PittsburghPA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, PittsburghPA, USA; Department of Surgery, Thomas E. Starzl Transplantation Institute, PittsburghPA, USA
| | - Yoram Vodovotz
- Department of Surgery, University of Pittsburgh, PittsburghPA, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, PittsburghPA, USA
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Pump the organ: procurement and resuscitation technologies beyond static cold storage. Curr Opin Organ Transplant 2016; 21:285-7. [PMID: 27100149 DOI: 10.1097/mot.0000000000000323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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