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Zhou AL, Akbar AF, Kilic A. Normothermic regional perfusion in the United States: A call for improved data collection. J Heart Lung Transplant 2024; 43:1196-1197. [PMID: 38521115 DOI: 10.1016/j.healun.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024] Open
Affiliation(s)
- Alice L Zhou
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Armaan F Akbar
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Ahmet Kilic
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland.
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2
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Rove JY, Cain MT, Hoffman JR, Reece TB. Noteworthy in Cardiothoracic Surgery 2023. Semin Cardiothorac Vasc Anesth 2024; 28:100-105. [PMID: 38631341 DOI: 10.1177/10892532241246037] [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] [Indexed: 04/19/2024]
Abstract
Noteworthy in Cardiothoracic Surgery 2023 summarizes a few of the most high-impact trials and provocative trends in cardiothoracic surgery and transplantation this past year. Transplantation using organs procured from donation after circulatory death (DCD) continues to increase, and the American Society of Transplant Surgeons released recommendations on best practices in 2023. We review a summary of data on the impact of DCD on heart and lung transplantation. There has been increased interest in extracorporeal life support (ECLS), particularly after the COVID-19 pandemic, and we review the results of the highly discussed ECLS-SHOCK trial, which randomized patients in cardiogenic shock with planned revascularization to ECLS vs usual care. With improving survival outcomes in complex aortic surgery, there is a need for higher-quality evidence to guide which cooling and cerebral perfusion strategies may optimize cognitive outcomes in these patients. We review the short-term outcomes of the GOT ICE trial (Cognitive Effects of Body Temperature During Hypothermic Circulatory Arrest), a multicenter, randomized controlled trial of three different nadir temperatures, evaluating outcomes in cognition and associated changes in functional magnetic resonance imaging. Finally, both the Society of Thoracic Surgeons (STS) and the American College of Cardiology, American Heart Association, American College of Chest Physicians and Heart Rhythm Society (ACC/AHA/ACCP/HRS) updated atrial fibrillation guidelines in 2023, and we review surgically relevant updates to the guidelines and the evidence behind them.
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Affiliation(s)
- Jessica Y Rove
- Department of Surgery, Division of Cardiothoracic Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Michael T Cain
- Department of Surgery, Division of Cardiothoracic Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jordan R Hoffman
- Department of Surgery, Division of Cardiothoracic Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - T Brett Reece
- Department of Surgery, Division of Cardiothoracic Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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3
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Sonnenberg EM, Abu-Gazala S, Bittermann T, Abt PL. Following the Flow: Changes in Organ Preservation Methods Require Changes in Our Data Collection. Transplantation 2024; 108:1265-1268. [PMID: 38291568 DOI: 10.1097/tp.0000000000004920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Affiliation(s)
| | - Samir Abu-Gazala
- Department of Surgery, University of Pennsylvania, Philadelphia, PA
| | - Therese Bittermann
- Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, PA
- Division of Gastroenterology and Hepatology, University of Pennsylvania, Philadelphia, PA
| | - Peter L Abt
- Department of Surgery, University of Pennsylvania, Philadelphia, PA
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4
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Ran G, Wall AE, Narang N, Khush KK, Hoffman JRH, Zhang KC, Parker WF. Post-transplant survival after normothermic regional perfusion versus direct procurement and perfusion in donation after circulatory determination of death in heart transplantation. J Heart Lung Transplant 2024; 43:954-962. [PMID: 38423416 PMCID: PMC11090717 DOI: 10.1016/j.healun.2024.02.1456] [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: 09/21/2023] [Revised: 02/13/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Since 2019, the annual transplantation rate of hearts donated following circulatory death (DCD) has increased significantly in the United States. The 2 major heart procurement techniques following circulatory death are direct procurement and perfusion (DPP) and normothermic regional perfusion (NRP). Post-transplant survival for heart recipients has not been compared between these 2 techniques. METHODS This observational study uses data on adult heart transplants from donors after circulatory death from January 1, 2019 to December 31, 2021 in the Scientific Registry of Transplant Recipients. We identified comparable transplant cases across procurement types using propensity-score matching and measured the association between procurement technique and 1-year post-transplant survival using Kaplan-Meier and Cox proportional hazards model stratefied by matching pairs. RESULTS Among 318 DCD heart transplants, 216 (68%) were procured via DPP, and 102 (32%) via NRP. Among 22 transplant centers that accepted circulatory-death donors, 3 used NRP exclusively, and 5 used both procurement techniques. After propensity-score matching on recipient and donor factors, there was no significant difference in 1-year post-transplant survival (93.1% for NRP vs 91.1% for DPP, p = 0.79) between procurement techniques. CONCLUSIONS NRP and DPP procurements are associated with similar 1-year post-transplant survival. If NRP is ethically permissible and improves outcomes for abdominal organs, it should be the preferred procurement technique for DCD hearts.
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Affiliation(s)
- Gege Ran
- Pritzker School of Medicine, University of Chicago, Chicago, Illinois
| | - Anji E Wall
- Department of Transplant Surgery, Annette C. and Harrold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas
| | - Nikhil Narang
- Department of Cardiology, Advocate Christ Medical Center, Chicago, Illinois; Department of Medicine, University of Illinois-Chicago, Chicago, Illinois
| | - Kiran K Khush
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University, Stanford, California
| | - Jordan R H Hoffman
- Division of Cardiothoracic Surgery, University of Colorado, Aurora, Colorado
| | - Kevin C Zhang
- Department of Medicine, University of Chicago, Chicago, Illinois
| | - William F Parker
- Department of Medicine, University of Chicago, Chicago, Illinois; Department of Public Health Sciences, University of Chicago, Chicago, Illinois; MacLean Center for Clinical Medical Ethics, University of Chicago, Chicago, Illinois.
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5
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Dudzinski DM, Pal JD, Kirkpatrick JN. Ethical and Equity Guidance for Transplant Programs Considering Thoracoabdominal Normothermic Regional Perfusion (TA-NRP) for Procurement of Hearts. THE AMERICAN JOURNAL OF BIOETHICS : AJOB 2024; 24:16-26. [PMID: 38829597 DOI: 10.1080/15265161.2024.2337393] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Donation after circulatory determination of death (DCDD) is an accepted practice in the United States, but heart procurement under these circumstances has been debated. Although the practice is experiencing a resurgence due to the recently completed trials using ex vivo perfusion systems, interest in thoracoabdominal normothermic regional perfusion (TA-NRP), wherein the organs are reanimated in situ prior to procurement, has raised many ethical questions. We outline practical, ethical, and equity considerations to ensure transplant programs make well-informed decisions about TA-NRP. We present a multidisciplinary analysis of the relevant ethical issues arising from DCDD-NRP heart procurement, including application of the Dead Donor Rule and the Uniform Definition of Death Act, and provide recommendations to facilitate ethical analysis and input from all interested parties. We also recommend informed consent, as distinct from typical "authorization," for cadaveric organ donation using TA-NRP.
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Affiliation(s)
- Denise M Dudzinski
- University of Washington School of Medicine
- University of Washington School of Medicine Ethics Consultation Service
| | - Jay D Pal
- University of Washington School of Medicine
| | - James N Kirkpatrick
- University of Washington School of Medicine
- University of Washington School of Medicine Ethics Consultation Service
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6
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Wall A, Gupta A, Testa G. Abdominal normothermic regional perfusion in the United States: current state and future directions. Curr Opin Organ Transplant 2024; 29:175-179. [PMID: 38506730 DOI: 10.1097/mot.0000000000001144] [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: 03/21/2024]
Abstract
PURPOSE OF REVIEW Normothermic regional perfusion (NRP) is a novel procurement technique for donation after circulatory death (DCD) in the United States. It was pioneered by cardiothoracic surgery programs and is now being applied to abdominal-only organ donors by abdominal transplant programs. RECENT FINDINGS Liver and kidney transplantation from thoracoabdominal NRP (TA-NRP) donors in the United States was found to have lower rates of delayed kidney graft function and similar graft and patient survival versus recipients of cardiac super rapid recovery (SRR) DCD donors. The excellent outcomes with NRP have prompted the expansion of NRP technology to abdominal transplant programs. SUMMARY Excellent early outcomes with liver and kidney transplantation have prompted the growth of NC-NRP procurement for abdominal-only DCD donors across the US, and now requires standardization of technical and nontechnical aspects of this procedure.
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7
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Kirschen MP, Lewis A, Rubin MA, Varelas PN, Greer DM. Beyond the Final Heartbeat: Neurological Perspectives on Normothermic Regional Perfusion for Organ Donation after Circulatory Death. Ann Neurol 2024; 95:1035-1039. [PMID: 38501716 DOI: 10.1002/ana.26926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/28/2024] [Accepted: 03/09/2024] [Indexed: 03/20/2024]
Abstract
Normothermic regional perfusion (NRP) has recently been used to augment organ donation after circulatory death (DCD) to improve the quantity and quality of transplantable organs. In DCD-NRP, after withdrawal of life-sustaining therapies and cardiopulmonary arrest, patients are cannulated onto extracorporeal membrane oxygenation to reestablish blood flow to targeted organs including the heart. During this process, aortic arch vessels are ligated to restrict cerebral blood flow. We review ethical challenges including whether the brain is sufficiently reperfused through collateral circulation to allow reemergence of consciousness or pain perception, whether resumption of cardiac activity nullifies the patient's prior death determination, and whether specific authorization for DCD-NRP is required. ANN NEUROL 2024;95:1035-1039.
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Affiliation(s)
- Matthew P Kirschen
- Departments of Anesthesiology and Critical Care Medicine, Neurology, and Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Ariane Lewis
- Departments of Neurology and Neurosurgery, New York University, Langone Medical Center, New York, NY, USA
| | - Michael A Rubin
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | | | - David M Greer
- Department of Neurology, Boston University Chobanian and Avedisian School of Medicine and Boston Medical Center, Boston, MA, USA
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8
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Silpe S, Martinez E, Wall A. Normothermic regional perfusion procurement for abdominal organ donors: techniques and troubleshooting. Curr Opin Organ Transplant 2024; 29:200-204. [PMID: 38465664 DOI: 10.1097/mot.0000000000001140] [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: 03/12/2024]
Abstract
PURPOSE OF REVIEW Normothermic regional perfusion (NRP) is a novel procurement technique for donation after circulatory death (DCD) in the United States. It was pioneered by cardiothoracic surgery programs and is now being applied to abdominal-only organ donors by abdominal transplant programs. Multiple technical approaches can be used for abdominal-only NRP DCD donors and this review describes these techniques. RECENT FINDINGS NRP has been associated with higher utilization of organs, particularly liver and heart grafts, from DCD donors and with better recipient outcomes. There are lower rates of delayed graft function in kidney transplant recipients and lower rates of ischemic cholangiopathy in liver transplant recipients. These benefits are driving increased interest from abdominal transplant programs in using NRP for DCD procurements. SUMMARY This paper describes the technical aspects of NRP DCD that allow for maximization of its use based on different donor and policy characteristics.
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9
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Bommareddi S, Lima B, Shah AS, Trahanas JM. Thoraco-abdominal normothermic regional perfusion for thoracic transplantation in the United States: current state and future directions. Curr Opin Organ Transplant 2024; 29:180-185. [PMID: 38483139 DOI: 10.1097/mot.0000000000001143] [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: 04/30/2024]
Abstract
PURPOSE OF REVIEW To provide an update regarding the state of thoracoabdominal normothermic regional perfusion (taNRP) when used for thoracic organ recovery. RECENT FINDINGS taNRP is growing in its utilization for thoracic organ recovery from donation after circulatory death donors, partly because of its cost effectiveness. taNRP has been shown to yield cardiac allograft recipient outcomes similar to those of brain-dead donors. Regarding the use of taNRP to recover donor lungs, United Network for Organ Sharing (UNOS) analysis shows that taNRP recovered lungs are noninferior, and taNRP has been used to consistently recover excellent lungs at high volume centers. Despite its growth, ethical debate regarding taNRP continues, though clinical data now supports the notion that there is no meaningful brain perfusion after clamping the aortic arch vessels. SUMMARY taNRP is an excellent method for recovering both heart and lungs from donation after circulatory death donors and yields satisfactory recipient outcomes in a cost-effective manner. taNRP is now endorsed by the American Society of Transplant Surgeons, though ethical debate continues.
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Affiliation(s)
- Swaroop Bommareddi
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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10
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Chen S, Sade RM, Entwistle JW. Organ Donation by the Imminently Dead: Addressing the Organ Shortage and the Dead Donor Rule. THE JOURNAL OF MEDICINE AND PHILOSOPHY 2024:jhae028. [PMID: 38801219 DOI: 10.1093/jmp/jhae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
The dead donor rule (DDR) has facilitated the saving of hundreds of thousands of lives. Recent advances in heart donation, however, have exposed how DDR has limited donation of all organs. We propose advancing the moment in the dying process at which death can be determined to increase substantially the supply of organs for transplantation. We justify this approach by identifying certain flaws in the Uniform Determination of Death Act and proposing a modification of that law that permits earlier procurement of healthier organs in greater numbers.
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Affiliation(s)
- Sarah Chen
- Medical University of South Carolina, Charleston, South Carolina, USA
| | - Robert M Sade
- Medical University of South Carolina, Charleston, South Carolina, USA
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11
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Hess NR, Hong Y, Yoon P, Bonatti J, Sultan I, Serna-Gallegos D, Chu D, Hickey GW, Keebler ME, Kaczorowski DJ. Donation after circulatory death improves probability of heart transplantation in waitlisted candidates and results in post-transplant outcomes similar to those achieved with brain-dead donors. J Thorac Cardiovasc Surg 2024; 167:1845-1860.e12. [PMID: 37714368 DOI: 10.1016/j.jtcvs.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/14/2023] [Accepted: 09/04/2023] [Indexed: 09/17/2023]
Abstract
OBJECTIVE To quantitate the impact of heart donation after circulatory death (DCD) donor utilization on both waitlist and post-transplant outcomes in the United States. METHODS The United Network for Organ Sharing database was queried to identify all adult waitlisted and transplanted candidates between October 18, 2018, and December 31, 2022. Waitlisted candidates were stratified according to whether they had been approved for donation after brain death (DBD) offers only or also approved for DCD offers. The cumulative incidence of transplantation was compared between the 2 cohorts. In a post-transplant analysis, 1-year post-transplant survival was compared between unmatched and propensity-score-matched cohorts of DBD and DCD recipients. RESULTS A total of 14,803 candidates were waitlisted, including 12,287 approved for DBD donors only and 2516 approved for DCD donors. Overall, DCD approval was associated with an increased sub-hazard ratio (HR) for transplantation and a lower sub-HR for delisting owing to death/deterioration after risk adjustment. In a subgroup analysis, candidates with blood type B and status 4 designation received the greatest benefit from DCD approval. A total of 12,238 recipients underwent transplantation, 11,636 with DBD hearts and 602 with DCD hearts. Median waitlist times were significantly shorter for status 3 and status 4 recipients receiving DCD hearts. One-year post-transplant survival was comparable between unmatched and propensity score-matched cohorts of DBD and DCD recipients. CONCLUSIONS The use of DCD hearts confers a higher probability of transplantation and a lower incidence of death/deterioration while on the waitlist, particularly among certain subpopulations such as status 4 candidates. Importantly, the use of DCD donors results in similar post-transplant survival as DBD donors.
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Affiliation(s)
- Nicholas R Hess
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Yeahwa Hong
- Department of General Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Pyongsoo Yoon
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Johannes Bonatti
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Ibrahim Sultan
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Derek Serna-Gallegos
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Danny Chu
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Gavin W Hickey
- Department of Cardiology, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - Mary E Keebler
- Department of Cardiology, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - David J Kaczorowski
- Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa.
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12
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Zong J, Ye W, Yu J, Zhang X, Cui J, Chen Z, Li Y, Wang S, Ran S, Niu Y, Luo Z, Li X, Zhao J, Hao Y, Xia J, Wu J. Outcomes of Heart Transplantation From Donation After Circulatory Death: An Up-to-Date Systematic Meta-analysis. Transplantation 2024:00007890-990000000-00720. [PMID: 38578698 DOI: 10.1097/tp.0000000000005017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Abstract
BACKGROUND Donation after circulatory death (DCD) heart transplantation (HTx) significantly expands the donor pool and reduces waitlist mortality. However, high-level evidence-based data on its safety and effectiveness are lacking. This meta-analysis aimed to compare the outcomes between DCD and donation after brain death (DBD) HTxs. METHODS Databases, including MEDLINE, Embase, CINAHL, and the Cochrane Central Register of Controlled Trials, were systematically searched for randomized controlled trials and observational studies reporting the outcomes of DCD and DBD HTxs published from 2014 onward. The data were pooled using random-effects models. Risk ratios (RRs) with 95% confidence intervals (CIs) were used as the summary measures for categorical outcomes and mean differences were used for continuous outcomes. RESULTS Twelve eligible studies were included in the meta-analysis. DCD HTx was associated with lower 1-y mortality rate (DCD 8.13% versus DBD 10.24%; RR = 0.75; 95% CI, 0.59-0.96; P = 0.02) and 5-y mortality rate (DCD 14.61% versus DBD 20.57%; RR = 0.72; 95% CI, 0.54-0.97; P = 0.03) compared with DBD HTx. CONCLUSIONS Using the current DCD criteria, HTx emerges as a promising alternative to DBD transplantation. The safety and feasibility of DCD hearts deserve further exploration and investigation.
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Affiliation(s)
- Junjie Zong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Weicong Ye
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jizhang Yu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xi Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jikai Cui
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhang Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yuan Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Song Wang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shuan Ran
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yuqing Niu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zilong Luo
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaohan Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiulu Zhao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yanglin Hao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
- NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
- Institute of Translational Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jie Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Ministry of Education, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
- NHC Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, China
- Institute of Translational Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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13
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Mondal NK, Li S, Elsenousi AE, Mattar A, Hochman-Mendez C, Rosengart TK, Liao KK. Myocardial edema, inflammation, and injury in human heart donated after circulatory death are sensitive to warm ischemia and subsequent cold storage. J Thorac Cardiovasc Surg 2024; 167:1346-1358. [PMID: 37743010 DOI: 10.1016/j.jtcvs.2023.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/05/2023] [Accepted: 09/16/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Single-dose del Nido solution was recently used in human donation after circulatory death (DCD) heart procurement. We compared the effect of del Nido cardioplegia on myocardial edema, inflammatory response, and injury in human DCD hearts and human donation after brain death (DBD) hearts with different warm ischemic times (WIT) and subsequent cold saline storage times (CST). METHODS A total of 24 human hearts, including 6 in the DBD group and 18 in the DCD group-were procured for the research study. The DCD group was divided into 3 subgroups based on WIT: 20, 40, and ≥60 minutes. All hearts received 1 L of del Nido cardioplegia before being placed in cold saline for 6 hours. Left ventricular biopsies were performed at 0, 2, 4, and 6 hours. Temporal changes in myocardial edema, inflammatory cytokines (TNF-α, IL-6, and IL-1β), and histopathology injury scores were compared between the DBD and DCD groups. RESULTS DCD hearts showed more profound changes in myocardial edema, inflammation, and injury than DBD hearts at baseline and subsequent CST. The DCD heart with WIT of 20 and 40 minutes with CST of 4 and 2 hours, respectively, appeared to have limited myocardial edema, inflammation, and injury. DCD hearts with WIT ≥60 minutes showed severe myocardial edema, inflammation, and injury at baseline and subsequent CST. CONCLUSIONS Single-dose cold del Nido cardioplegia and subsequent cold normal saline storage can preserve both DCD and DBD hearts. DCD hearts have been shown to be able to tolerate a WIT of 20 minutes and subsequent CST of 4 hours without experiencing significant myocardial edema, inflammation, and injury.
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Affiliation(s)
- Nandan K Mondal
- Division of Cardiothoracic Transplantation and Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex; Department of Regenerative Medicine Research, Texas Heart Institute, Houston, Tex.
| | - Shiyi Li
- Division of Cardiothoracic Transplantation and Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex
| | - Abdussalam E Elsenousi
- Division of Cardiothoracic Transplantation and Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex
| | - Aladdein Mattar
- Division of Cardiothoracic Transplantation and Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex
| | | | - Todd K Rosengart
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex
| | - Kenneth K Liao
- Division of Cardiothoracic Transplantation and Circulatory Support, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Tex; Department of Regenerative Medicine Research, Texas Heart Institute, Houston, Tex.
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14
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Dann TM, Spencer BL, Wilhelm SK, Drake SK, Bartlett RH, Rojas-Pena A, Drake DH. Donor heart refusal after circulatory death: An analysis of United Network for Organ Sharing refusal codes. JTCVS OPEN 2024; 18:91-103. [PMID: 38690428 PMCID: PMC11056494 DOI: 10.1016/j.xjon.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 05/02/2024]
Abstract
Objective Donor hearts procured after circulatory death (DCD) may significantly increase the number of hearts available for transplantation. The purpose of this study was to analyze current DCD and brain-dead donor (DBD) heart transplantation rates and characterize organ refusal using the most up-to-date United Network for Organ Sharing (UNOS) and Organ Procurement and Transplantation Network data. Methods We analyzed UNOS and Organ Procurement and Transplantation Network DBD and DCD candidate, transplantation, and demographic data from 2020 through 2022 and 2022 refusal code data to characterize DCD heart use and refusal. Subanalyses were performed to characterize DCD donor demographics and regional transplantation rate variance. Results DCD hearts were declined 3.37 times more often than DBD hearts. The most frequently used code for DCD refusal was neurologic function, related to concerns of a prolonged dying process and organ preservation. In 2022, 92% (1329/1452) of all DCD refusals were attributed to neurologic function. When compared with DBD, DCD donor hearts were more frequently declined as the result of prolonged warm ischemic time (odds ratio, 5.65; 95% confidence interval, 4.07-7.86) and other concerns over organ preservation (odds ratio, 4.06; 95% confidence interval, 3.33-4.94). Transplantation rate variation was observed between demographic groups and UNOS regions. DCD transplantation rates are currently experiencing second order polynomial growth. Conclusions DCD donor hearts are declined more frequently than DBD. DCD heart refusals result from concerns over a prolonged dying process and organ preservation. Heart transplantation rates may be substantially improved by ex situ hemodynamic assessment, adoption of normothermic regional perfusion guidelines, and quality initiatives.
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Affiliation(s)
- Tyler M. Dann
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Extracorporeal Life Support Laboratory, University of Michigan Medical School, Ann Arbor, Mich
| | - Brianna L. Spencer
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Extracorporeal Life Support Laboratory, University of Michigan Medical School, Ann Arbor, Mich
| | - Spencer K. Wilhelm
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Extracorporeal Life Support Laboratory, University of Michigan Medical School, Ann Arbor, Mich
| | - Sarah K. Drake
- Information School, University of Wisconsin, Madison, Wis
| | - Robert H. Bartlett
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Extracorporeal Life Support Laboratory, University of Michigan Medical School, Ann Arbor, Mich
| | - Alvaro Rojas-Pena
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Extracorporeal Life Support Laboratory, University of Michigan Medical School, Ann Arbor, Mich
- Department of Surgery, Section of Transplantation, University of Michigan Medical School, Ann Arbor, Mich
| | - Daniel H. Drake
- Department of Surgery, Extracorporeal Life Support Laboratory, University of Michigan Medical School, Ann Arbor, Mich
- Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, Mich
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15
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Zhou AL, Rizaldi AA, Akbar AF, Ruck JM, King EA, Kilic A. Outcomes following concomitant multiorgan heart transplantation from circulatory death donors: The United States experience. J Heart Lung Transplant 2024:S1053-2498(24)01535-3. [PMID: 38548240 DOI: 10.1016/j.healun.2024.03.013] [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: 09/11/2023] [Revised: 02/03/2024] [Accepted: 03/16/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Donation after circulatory death (DCD) has reemerged as a method of expanding the donor heart pool. Given the high waitlist mortality of multiorgan heart candidates, we evaluated waitlist outcomes associated with willingness to consider DCD offers and post-transplant outcomes following DCD transplant for these candidates. METHODS We identified adult multiorgan heart candidates and recipients between January 1, 2020 and March 31, 2023 nationally. Among candidates that met inclusion criteria, we compared the cumulative incidence of transplant, with waitlist death/deterioration as a competing risk, by willingness to consider DCD offers. Among recipients of DCD versus brain death (DBD) transplants, we compared perioperative outcomes and post-transplant survival. RESULTS Of 1,802 heart-kidney, 266 heart-liver, and 440 heart-lung candidates, 15.8%, 12.4%, and 31.1%, respectively, were willing to consider DCD offers. On adjusted analysis, willingness to consider DCD offers was associated with higher likelihood of transplant for all multiorgan heart candidates and decreased likelihood of waitlist deterioration for heart-lung candidates. Of 1,100 heart-kidney, 173 heart-liver, and 159 heart-lung recipients, 5.4%, 2.3%, and 2.5%, respectively, received DCD organs. Recipients of DCD and DBD heart-kidney transplants had a similar likelihood of perioperative outcomes and 1-year survival. All other DCD multiorgan heart recipients have survived to the last follow-up. CONCLUSIONS Multiorgan heart candidates who were willing to consider DCD offers had favorable waitlist outcomes, and heart-kidney recipients of DCD transplants had similar post-transplant outcomes to recipients of DBD transplants. We recommend the use of DCD organs to increase the donor pool for these high-risk candidates.
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Affiliation(s)
- Alice L Zhou
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Alexandra A Rizaldi
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Armaan F Akbar
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Jessica M Ruck
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Elizabeth A King
- Division of Transplant Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Ahmet Kilic
- Division of Cardiac Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland.
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16
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Bakhtiyar SS, Maksimuk TE, Gutowski J, Park SY, Cain MT, Rove JY, Reece TB, Cleveland JC, Pomposelli JJ, Bababekov YJ, Nydam TL, Schold JD, Pomfret EA, Hoffman JRH. Association of procurement technique with organ yield and cost following donation after circulatory death. Am J Transplant 2024:S1600-6135(24)00237-5. [PMID: 38521350 DOI: 10.1016/j.ajt.2024.03.027] [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: 01/13/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
Donation after circulatory death (DCD) could account for the largest expansion of the donor allograft pool in the contemporary era. However, the organ yield and associated costs of normothermic regional perfusion (NRP) compared to super-rapid recovery (SRR) with ex-situ normothermic machine perfusion, remain unreported. The Organ Procurement and Transplantation Network (December 2019 to June 2023) was analyzed to determine the number of organs recovered per donor. A cost analysis was performed based on our institution's experience since 2022. Of 43 502 donors, 30 646 (70%) were donors after brain death (DBD), 12 536 (29%) DCD-SRR and 320 (0.7%) DCD-NRP. The mean number of organs recovered was 3.70 for DBD, 3.71 for DCD-NRP (P < .001), and 2.45 for DCD-SRR (P < .001). Following risk adjustment, DCD-NRP (adjusted odds ratio 1.34, confidence interval 1.04-1.75) and DCD-SRR (adjusted odds ratio 2.11, confidence interval 2.01-2.21; reference: DBD) remained associated with greater odds of allograft nonuse. Including incomplete and completed procurement runs, the total average cost of DCD-NRP was $9463.22 per donor. By conservative estimates, we found that approximately 31 donor allografts could be procured using DCD-NRP for the cost equivalent of 1 allograft procured via DCD-SRR with ex-situ normothermic machine perfusion. In conclusion, DCD-SRR procurements were associated with the lowest organ yield compared to other procurement methods. To facilitate broader adoption of DCD procurement, a comprehensive understanding of the trade-offs inherent in each technique is imperative.
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Affiliation(s)
- Syed Shahyan Bakhtiyar
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA.
| | - Tiffany E Maksimuk
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA
| | - John Gutowski
- University of Colorado Hospital Transplant Center, Aurora, Colorado, USA
| | - Sarah Y Park
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA
| | - Michael T Cain
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA; University of Colorado Hospital Transplant Center, Aurora, Colorado, USA
| | - Jessica Y Rove
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA; University of Colorado Hospital Transplant Center, Aurora, Colorado, USA
| | - T Brett Reece
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA; University of Colorado Hospital Transplant Center, Aurora, Colorado, USA
| | - Joseph C Cleveland
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA; University of Colorado Hospital Transplant Center, Aurora, Colorado, USA
| | - James J Pomposelli
- University of Colorado Hospital Transplant Center, Aurora, Colorado, USA; Division of Transplant Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA
| | - Yanik J Bababekov
- University of Colorado Hospital Transplant Center, Aurora, Colorado, USA; Division of Transplant Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA
| | - Trevor L Nydam
- University of Colorado Hospital Transplant Center, Aurora, Colorado, USA; Division of Transplant Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA
| | - Jesse D Schold
- Division of Transplant Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA; Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado, USA
| | - Elizabeth A Pomfret
- University of Colorado Hospital Transplant Center, Aurora, Colorado, USA; Division of Transplant Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA
| | - Jordan R H Hoffman
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado, Aurora, Colorado, USA; University of Colorado Hospital Transplant Center, Aurora, Colorado, USA
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17
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Motter JD, Jaffe IS, Moazami N, Smith DE, Kon ZN, Piper GL, Sommer PM, Reyentovich A, Chang SH, Aljabban I, Montgomery RA, Segev DL, Massie AB, Lonze BE. Single center utilization and post-transplant outcomes of thoracoabdominal normothermic regional perfusion deceased cardiac donor organs. Clin Transplant 2024; 38:e15269. [PMID: 38445531 DOI: 10.1111/ctr.15269] [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: 10/11/2023] [Revised: 01/26/2024] [Accepted: 02/09/2024] [Indexed: 03/07/2024]
Abstract
INTRODUCTION Thoracoabdominal normothermic regional perfusion (TA-NRP) following cardiac death is an emerging multivisceral organ procurement technique. Recent national studies on outcomes of presumptive TA-NRP-procured organs are limited by potential misclassification since TA-NRP is not differentiated from donation after cardiac death (DCD) in registry data. METHODS We studied 22 donors whose designees consented to TA-NRP and organ procurement performed at our institution between January 20, 2020 and July 3, 2022. We identified these donors in SRTR to describe organ utilization and recipient outcomes and compared them to recipients of traditional DCD (tDCD) and donation after brain death (DBD) organs during the same timeframe. RESULTS All 22 donors progressed to cardiac arrest and underwent TA-NRP followed by heart, lung, kidney, and/or liver procurement. Median donor age was 41 years, 55% had anoxic brain injury, 45% were hypertensive, 0% were diabetic, and median kidney donor profile index was 40%. TA-NRP utilization was high across all organ types (88%-100%), with a higher percentage of kidneys procured via TA-NRP compared to tDCD (88% vs. 72%, p = .02). Recipient and graft survival ranged from 89% to 100% and were comparable to tDCD and DBD recipients (p ≥ .2). Delayed graft function was lower for kidneys procured from TA-NRP compared to tDCD donors (27% vs. 44%, p = .045). CONCLUSION Procurement from TA-NRP donors yielded high organ utilization, with outcomes comparable to tDCD and DBD recipients across organ types. Further large-scale study of TA-NRP donors, facilitated by its capture in the national registry, will be critical to fully understand its impact as an organ procurement technique.
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Affiliation(s)
- Jennifer D Motter
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Ian S Jaffe
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Nader Moazami
- Department of Cardiothoracic Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Deane E Smith
- Department of Cardiothoracic Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Zachary N Kon
- Department of Cardiothoracic Surgery, North Shore University Hospital, Northwell Health, Manhasset, New York, USA
| | - Greta L Piper
- Department of Cardiothoracic Surgery, North Shore University Hospital, Northwell Health, Manhasset, New York, USA
| | - Philip M Sommer
- Department of Anesthesiology, Perioperative Care, and Pain Medicine, NYU Grossman School of Medicine, New York, New York, USA
| | - Alex Reyentovich
- Division of Cardiology, Department of Medicine, NYU Grossman School of Medicine, New York, New York, USA
| | - Stephanie H Chang
- Department of Cardiothoracic Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Imad Aljabban
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
- Department of Surgery, Columbia University School of Medicine, New York, New York, USA
| | - Robert A Montgomery
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Dorry L Segev
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, USA
- Scientific Registry of Transplant Recipients, Minneapolis, Minnesota, USA
| | - Allan B Massie
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
- Department of Population Health, NYU Grossman School of Medicine, New York, New York, USA
| | - Bonnie E Lonze
- Department of Surgery, NYU Grossman School of Medicine, New York, New York, USA
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18
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Ahmed HF, Kulshrestha K, Kennedy JT, Gomez-Guzman A, Greenberg JW, Hossain MM, Zhang Y, D'Alessandro DA, John R, Moazami N, Chin C, Ashfaq A, Zafar F, Morales DLS. Donation after circulatory death significantly reduces waitlist times while not changing post-heart transplant outcomes: A United Network for Organ Sharing Analysis. J Heart Lung Transplant 2024; 43:461-470. [PMID: 37863451 PMCID: PMC10922468 DOI: 10.1016/j.healun.2023.10.013] [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] [Revised: 10/02/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023] Open
Abstract
BACKGROUND Recently, several centers in the United States have begun performing donation after circulatory death (DCD) heart transplants (HTs) in adults. We sought to characterize the recent use of DCD HT, waitlist time, and outcomes compared to donation after brain death (DBD). METHODS Using the United Network for Organ Sharing database, 10,402 adult (aged >18 years) HT recipients from January 2019 to June 2022 were identified: 425 (4%) were DCD and 9,977 (96%) were DBD recipients. Posttransplant outcomes in matched and unmatched cohorts and waitlist times were compared between groups. RESULTS DCD and DBD recipients had similar age (57 years for both, p = 0.791). DCD recipients were more likely White (67% vs 60%, p = 0.002), on left ventricular assist device (LVAD; 40% vs 32%, p < 0.001), and listed as status 4 to 6 (60% vs 24%, p < 0.001); however, less likely to require inotropes (22% vs 40%, p < 0.001) and preoperative extracorporeal membrane oxygenation (0.9% vs 6%, p < 0.001). DCD donors were younger (29 vs 32 years, p < 0.001) and had less renal dysfunction (15% vs 39%, p < 0.001), diabetes (1.9% vs 3.8%, p = 0.050), or hypertension (9.9% vs 16%, p = 0.001). In matched and unmatched cohorts, early survival was similar (p = 0.22). Adjusted waitlist time was shorter in DCD group (21 vs 31 days, p < 0.001) compared to DBD cohort and 5-fold shorter (DCD: 22 days vs DBD: 115 days, p < 0.001) for candidates in status 4 to 6, which was 60% of DCD cohort. CONCLUSIONS The community is using DCD mostly for those recipients who are expected to have extended waitlist times (e.g., durable LVADs, status >4). DCD recipients had similar posttransplant early survival and shorter adjusted waitlist time compared to DBD group. Given this early success, efforts should be made to expand the donor pool using DCD, especially for traditionally disadvantaged recipients on the waitlist.
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Affiliation(s)
- Hosam F Ahmed
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kevin Kulshrestha
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - John T Kennedy
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Amalia Gomez-Guzman
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jason W Greenberg
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Md Monir Hossain
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Yin Zhang
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David A D'Alessandro
- Division of Cardiothoracic Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Ranjit John
- Division of Cardiothoracic Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Nader Moazami
- Department of Cardiothoracic Surgery, New York University (NYU) Langone Health, New York, New York
| | - Clifford Chin
- Division of Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Awais Ashfaq
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Farhan Zafar
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David L S Morales
- Division of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
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19
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Zhou AL, Leng A, Ruck JM, Akbar AF, Desai NM, King EA. Kidney Donation After Circulatory Death Using Thoracoabdominal Normothermic Regional Perfusion: The Largest Report of the United States Experience. Transplantation 2024; 108:516-523. [PMID: 37691154 PMCID: PMC10840803 DOI: 10.1097/tp.0000000000004801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
BACKGROUND Thoracoabdominal normothermic regional perfusion (TA-NRP) has been increasingly used for donation after circulatory death (DCD) procurements in the United States. We present the largest report of outcomes of kidney transplants performed using DCD donor grafts perfused with TA-NRP. METHODS Adult DCD kidney transplants between 2020 and 2022 in the United Network for Organ Sharing database were included. Donors with ≥50 min between asystole and aortic cross-clamp time in which the heart was also transplanted were considered TA-NRP donors. All other donors were considered direct recovery donors. Multivariable regressions were used to assess delayed graft function, as well as posttransplant survival and all-cause graft failure at 30, 90, and 180 d. A propensity-matched analysis of cohorts matched on donor Kidney Donor Profile Index was performed. RESULTS Of the 16 140 total DCD kidney transplants performed during the study period, 306 (1.9%) used TA-NRP. TA-NRP donors were younger ( P < 0.001) and had lower Kidney Donor Profile Index ( P < 0.001) compared with direct recovery donors. Recipients receiving grafts recovered using TA-NRP were younger ( P < 0.001) and more likely to be blood group O ( P < 0.001). Transplants using TA-NRP had lower likelihood of delayed graft function (adjusted odds ratio 0.22 [95% confidence interval, 0.15-0.31], P < 0.001) but similar 180-d survival ( P = 0.8) and all-cause graft failure ( P = 0.3) as transplants using direct recovery grafts. These inferences were unchanged on propensity-matched analysis. CONCLUSIONS Our results demonstrate that kidney transplants using TA-NRP DCD allografts have positive short-term mortality and graft survival outcomes, with significantly decreased rates of delayed graft function compared with direct recovery DCD grafts.
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Affiliation(s)
- Alice L. Zhou
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Albert Leng
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Jessica M. Ruck
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Armaan F. Akbar
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Niraj M. Desai
- Department of Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
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20
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Royo-Villanova M, Miñambres E, Sánchez JM, Torres E, Manso C, Ballesteros MÁ, Parrilla G, de Paco Tudela G, Coll E, Pérez-Blanco A, Domínguez-Gil B. Maintaining the permanence principle of death during normothermic regional perfusion in controlled donation after the circulatory determination of death: Results of a prospective clinical study. Am J Transplant 2024; 24:213-221. [PMID: 37739346 DOI: 10.1016/j.ajt.2023.09.008] [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: 06/12/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/24/2023]
Abstract
One concern about the use of normothermic regional perfusion (NRP) in controlled donation after the circulatory determination of death (cDCD) is that the brain may be perfused. We aimed to demonstrate that certain technical maneuvers preclude such brain perfusion. A nonrandomized trial was performed on cDCD donors. In abdominal normothermic regional perfusion (A-NRP), the thoracic aorta was blocked with an intra-aortic occlusion balloon. In thoracoabdominal normothermic regional perfusion (TA-NRP), the arch vessels were clamped and the cephalad ends vented to the atmosphere. The mean intracranial arterial blood pressure (ICBP) was invasively measured at the circle of Willis. Ten cDCD donors subject to A-NRP or TA-NRP were included. Mean ICBP and mean blood pressure at the thoracic and the abdominal aorta during the circulatory arrest were 17 (standard deviation [SD], 3), 17 (SD, 3), and 18 (SD, 4) mmHg, respectively. When A-NRP started, pressure at the abdominal aorta increased to 50 (SD, 13) mmHg, while the ICBP remained unchanged. When TA-NRP was initiated, thoracic aorta pressure increased to 71 (SD, 18) mmHg, but the ICBP remained unmodified. Recorded values of ICBP during NRP were 10 mmHg. In conclusion, appropriate technical measures applied during NRP preclude perfusion of the brain in cDCD. This study might help to expand NRP and increase the number of organs available for transplantation.
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Affiliation(s)
- Mario Royo-Villanova
- Donor Transplant Coordination Unit, Service of Intensive Care, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Eduardo Miñambres
- Donor Transplant Coordination Unit, Service of Intensive Care, Hospital Universitario Marqués de Valdecilla-IDIVAL, School of Medicine, Universidad de Cantabria, Santander, Spain.
| | - José Moya Sánchez
- Donor Transplant Coordination Unit, Service of Intensive Care, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Eduardo Torres
- Neuro-intervention Unit, Hospital Universitario de Marqués de Valdecilla-IDIVAL, Santander, Spain
| | - Clara Manso
- Service of Intensive Care, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - María Ángeles Ballesteros
- Donor Transplant Coordination Unit, Service of Intensive Care, Hospital Universitario Marqués de Valdecilla-IDIVAL, Santander, Spain
| | - Guillermo Parrilla
- Interventional Neurovascular Unit, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Gonzalo de Paco Tudela
- Interventional Neurovascular Unit, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
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21
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Wall AE, Adams BL, Brubaker A, Chang CWJ, Croome KP, Frontera J, Gordon E, Hoffman J, Kaplan LJ, Kumar D, Levisky J, Miñambres E, Parent B, Watson C, Zemmar A, Pomfret EA. The American Society of Transplant Surgeons Consensus Statement on Normothermic Regional Perfusion. Transplantation 2024; 108:312-318. [PMID: 38254280 DOI: 10.1097/tp.0000000000004894] [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: 01/24/2024]
Abstract
On June 3, 2023, the American Society of Transplant Surgeons convened a meeting in San Diego, California to (1) develop a consensus statement with supporting data on the ethical tenets of thoracoabdominal normothermic regional perfusion (NRP) and abdominal NRP; (2) provide guidelines for the standards of practice that should govern thoracoabdominal NRP and abdominal NRP; and (3) develop and implement a central database for the collection of NRP donor and recipient data in the United States. National and international leaders in the fields of neuroscience, transplantation, critical care, NRP, Organ Procurement Organizations, transplant centers, and donor families participated. The conference was designed to focus on the controversial issues of neurological flow and function in donation after circulatory death donors during NRP and propose technical standards necessary to ensure that this procedure is performed safely and effectively. This article discusses major topics and conclusions addressed at the meeting.
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Affiliation(s)
- Anji E Wall
- Division of Abdominal Transplantation, Baylor Simmons Transplant Institute, Dallas, TX
| | | | - Aleah Brubaker
- Department of Surgery, University of California San Diego, San Diego, CA
| | - Cherylee W J Chang
- Neurocritical Care Division, Department of Neurology, Duke University, Durham, NC
| | | | - Jennifer Frontera
- Department of Neurology, NYU Grossman School of Medicine, New York, NY
| | - Elisa Gordon
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN
| | - Jordan Hoffman
- Heart and Lung Transplantation and CTEPH Program, University of Colorado School of Medicine, Anschutz Medical Campus, Denver, CO
| | - Lewis J Kaplan
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
- Surgical Critical Care Section, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA
| | - Deepali Kumar
- Transplant Infectious Diseases, Ajmera Transplant Centre, University Health Network, Toronto, ON, Canada
| | - Josh Levisky
- Division of Hepatology, Department of Medicine, Northwestern Medicine, Chicago, IL
| | - Eduardo Miñambres
- Donor Transplant Coordination Unit and Intensive Care Service, Hospital Universitario de Marqués de Valdecilla-IDIVAL, Spain
| | - Brendan Parent
- Division of Medical Ethics, NYU Grossman School of Medicine, New York, NY
| | - Christopher Watson
- Department of Surgery, University of Cambridge, Cambridge, United Kingdom
| | - Ajmal Zemmar
- Department of Neurosurgery, University of Louisville, Louisville, KY
| | - Elizabeth A Pomfret
- Division of Transplant Surgery and Colorado Center for Transplantation Care, Research and Education (CCTCARE), University of Colorado Anschutz Medical Campus, Denver, CO
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22
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Seefeldt JM, Libai Y, Berg K, Jespersen NR, Lassen TR, Dalsgaard FF, Ryhammer P, Pedersen M, Ilkjaer LB, Hu MA, Erasmus ME, Nielsen RR, Bøtker HE, Caspi O, Eiskjær H, Moeslund N. Effects of ketone body 3-hydroxybutyrate on cardiac and mitochondrial function during donation after circulatory death heart transplantation. Sci Rep 2024; 14:757. [PMID: 38191915 PMCID: PMC10774377 DOI: 10.1038/s41598-024-51387-y] [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: 10/18/2023] [Accepted: 01/04/2024] [Indexed: 01/10/2024] Open
Abstract
Normothermic regional perfusion (NRP) allows assessment of therapeutic interventions prior to donation after circulatory death transplantation. Sodium-3-hydroxybutyrate (3-OHB) increases cardiac output in heart failure patients and diminishes ischemia-reperfusion injury, presumably by improving mitochondrial metabolism. We investigated effects of 3-OHB on cardiac and mitochondrial function in transplanted hearts and in cardiac organoids. Donor pigs (n = 14) underwent circulatory death followed by NRP. Following static cold storage, hearts were transplanted into recipient pigs. 3-OHB or Ringer's acetate infusions were initiated during NRP and after transplantation. We evaluated hemodynamics and mitochondrial function. 3-OHB mediated effects on contractility, relaxation, calcium, and conduction were tested in cardiac organoids from human pluripotent stem cells. Following NRP, 3-OHB increased cardiac output (P < 0.0001) by increasing stroke volume (P = 0.006), dP/dt (P = 0.02) and reducing arterial elastance (P = 0.02). Following transplantation, infusion of 3-OHB maintained mitochondrial respiration (P = 0.009) but caused inotropy-resistant vasoplegia that prevented weaning. In cardiac organoids, 3-OHB increased contraction amplitude (P = 0.002) and shortened contraction duration (P = 0.013) without affecting calcium handling or conduction velocity. 3-OHB had beneficial cardiac effects and may have a potential to secure cardiac function during heart transplantation. Further studies are needed to optimize administration practice in donors and recipients and to validate the effect on mitochondrial function.
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Affiliation(s)
- Jacob Marthinsen Seefeldt
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark.
| | - Yaara Libai
- The Laboratory for Cardiovascular Precision Medicine, Rapport Faculty of Medicine, Technion and Rambam's Cardiovascular Research and Innovation Center, 2 Efron St, Haifa, Israel
| | - Katrine Berg
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Nichlas Riise Jespersen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Thomas Ravn Lassen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Frederik Flyvholm Dalsgaard
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
- Comparative Medicine Lab, Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Pia Ryhammer
- Department of Anesthesiology, Regional Hospital Silkeborg, Falkevej 1A, 8600, Silkeborg, Denmark
| | - Michael Pedersen
- Comparative Medicine Lab, Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Lars Bo Ilkjaer
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus N, Denmark
| | - Michiel A Hu
- Department of Cardiothoracic Surgery, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - Michiel E Erasmus
- Department of Cardiothoracic Surgery, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - Roni R Nielsen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Hans Erik Bøtker
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Oren Caspi
- The Laboratory for Cardiovascular Precision Medicine, Rapport Faculty of Medicine, Technion and Rambam's Cardiovascular Research and Innovation Center, 2 Efron St, Haifa, Israel
| | - Hans Eiskjær
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Niels Moeslund
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus N, Denmark
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23
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Kwon JH, Usry B, Hashmi ZA, Bhandari K, Carnicelli AP, Tedford RJ, Welch BA, Shorbaji K, Kilic A. Donor utilization in heart transplant with donation after circulatory death in the United States. Am J Transplant 2024; 24:70-78. [PMID: 37517554 DOI: 10.1016/j.ajt.2023.07.019] [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: 03/20/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/01/2023]
Abstract
Heart transplantation using donation after circulatory death (DCD) was recently adopted in the United States. This study aimed to characterize organ yield from adult (≥18 years) DCD heart donors in the United States using the United Network for Organ Sharing registry. The registry does not identify potential donors who do not progress to circulatory death, and only those who progressed to death were included for analysis. Outcomes included organ recovery from the donor operating room and organ utilization for transplant. Multiple logistic regression was used to identify predictors of heart recovery and utilization. Among 558 DCD procurements, recovery occurred in 89.6%, and 92.5% of recovered hearts were utilized for transplant. Of 506 DCD procurements with available data, 65.0% were classified as direct procurement and perfusion and 35.0% were classified as normothermic regional perfusion (NRP). Logistic regression identified that NRP, shorter agonal time, younger donor age, and highest volume of organ procurement organizations were independently associated with increased odds for heart recovery. NRP independently predicted heart utilization after recovery. DCD heart utilization in the United States is satisfactory and consistent with international experience. NRP procurements have a higher yield for DCD heart transplantation compared with direct procurement and perfusion, which may reflect differences in donor assessment and acceptance criteria.
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Affiliation(s)
- Jennie H Kwon
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Benjamin Usry
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Zubair A Hashmi
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Krishna Bhandari
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Anthony P Carnicelli
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Ryan J Tedford
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Brett A Welch
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Khaled Shorbaji
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Arman Kilic
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina, USA.
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24
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Merani S, Urban M, Westphal SG, Dong J, Miles CD, Maskin A, Hoffman A, Langnas AN. Improved Early Post-Transplant Outcomes and Organ Use in Kidney Transplant Using Normothermic Regional Perfusion for Donation after Circulatory Death: National Experience in the US. J Am Coll Surg 2024; 238:107-118. [PMID: 37772721 DOI: 10.1097/xcs.0000000000000880] [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: 09/30/2023]
Abstract
BACKGROUND Normothermic regional perfusion (NRP) is a technique that is intended to enhance organ transplant outcomes from donation circulatory death (DCD) donors. STUDY DESIGN A retrospective analysis of data from the Scientific Registry of Transplant Recipients was performed. DCD donors were screened for inclusion based on date of donation 2020 or later, and whether the heart was also recovered for transplantation. We grouped donors as either donation after brain death or DCD. DCD donors were further divided into groups including those in which the heart was not recovered for transplant (Non-Heart DCD) and those in which it was, based on recovery technique (thoracoabdominal-NRP [TA-NRP] Heart DCD and Super Rapid Recovery Heart DCD). RESULTS A total of 219 kidney transplant recipients receiving organs from TA-NRP Heart DCD donors were compared to 436 SRR Super Rapid Recovery DCD, 10,630 Super Rapid Recovery non-heart DCD, and 27,820 donations after brain death recipients. Kidney transplant recipients of TA-NRP DCD allografts experienced shorter length of stay, lower rates of delayed graft function, and lower serum creatinine at the time of discharge when compared with recipients of other DCD allografts. CONCLUSIONS Our analysis demonstrates superior early kidney allograft function when TA-NRP is used for DCD organ recovery.
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Affiliation(s)
- Shaheed Merani
- From the Division of Transplant, Department of Surgery (Merani, Maskin, Hoffman, Langnas), University of Nebraska Medical Center, Omaha, NE
| | - Marian Urban
- Division of Cardiothoracic Surgery, Department of Surgery (Urban), University of Nebraska Medical Center, Omaha, NE
| | - Scott G Westphal
- Division of Nephrology Department of Medicine (Westphal, Dong, Miles), University of Nebraska Medical Center, Omaha, NE
| | - James Dong
- Division of Nephrology Department of Medicine (Westphal, Dong, Miles), University of Nebraska Medical Center, Omaha, NE
- Department of Biostatistics (Dong), University of Nebraska Medical Center, Omaha, NE
| | - Clifford D Miles
- Division of Nephrology Department of Medicine (Westphal, Dong, Miles), University of Nebraska Medical Center, Omaha, NE
| | - Alexander Maskin
- From the Division of Transplant, Department of Surgery (Merani, Maskin, Hoffman, Langnas), University of Nebraska Medical Center, Omaha, NE
| | - Arika Hoffman
- From the Division of Transplant, Department of Surgery (Merani, Maskin, Hoffman, Langnas), University of Nebraska Medical Center, Omaha, NE
| | - Alan N Langnas
- From the Division of Transplant, Department of Surgery (Merani, Maskin, Hoffman, Langnas), University of Nebraska Medical Center, Omaha, NE
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25
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Jou S, Mendez SR, Feinman J, Mitrani LR, Fuster V, Mangiola M, Moazami N, Gidea C. Heart transplantation: advances in expanding the donor pool and xenotransplantation. Nat Rev Cardiol 2024; 21:25-36. [PMID: 37452122 DOI: 10.1038/s41569-023-00902-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/13/2023] [Indexed: 07/18/2023]
Abstract
Approximately 65 million adults globally have heart failure, and the prevalence is expected to increase substantially with ageing populations. Despite advances in pharmacological and device therapy of heart failure, long-term morbidity and mortality remain high. Many patients progress to advanced heart failure and develop persistently severe symptoms. Heart transplantation remains the gold-standard therapy to improve the quality of life, functional status and survival of these patients. However, there is a large imbalance between the supply of organs and the demand for heart transplants. Therefore, expanding the donor pool is essential to reduce mortality while on the waiting list and improve clinical outcomes in this patient population. A shift has occurred to consider the use of organs from donors with hepatitis C virus, HIV or SARS-CoV-2 infection. Other advances in this field have also expanded the donor pool, including opt-out donation policies, organ donation after circulatory death and xenotransplantation. We provide a comprehensive overview of these various novel strategies, provide objective data on their safety and efficacy, and discuss some of the unresolved issues and controversies of each approach.
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Affiliation(s)
- Stephanie Jou
- The Zena and Michael A. Wiener Cardiovascular Institute, The Mount Sinai Hospital, New York, NY, USA.
| | - Sean R Mendez
- The Zena and Michael A. Wiener Cardiovascular Institute, The Mount Sinai Hospital, New York, NY, USA
| | - Jason Feinman
- The Zena and Michael A. Wiener Cardiovascular Institute, The Mount Sinai Hospital, New York, NY, USA
| | - Lindsey R Mitrani
- The Zena and Michael A. Wiener Cardiovascular Institute, The Mount Sinai Hospital, New York, NY, USA
| | - Valentin Fuster
- The Zena and Michael A. Wiener Cardiovascular Institute, The Mount Sinai Hospital, New York, NY, USA
| | - Massimo Mangiola
- Transplant Institute, New York University Langone Health, New York, NY, USA
| | - Nader Moazami
- Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY, USA
| | - Claudia Gidea
- The Zena and Michael A. Wiener Cardiovascular Institute, The Mount Sinai Hospital, New York, NY, USA
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26
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Ahmed HF, Guzman-Gomez A, Kulshrestha K, Kantemneni EC, Chin C, Ashfaq A, Zafar F, Morales DLS. Reality of DCD donor use in pediatric thoracic transplantation in the United States. J Heart Lung Transplant 2024; 43:32-35. [PMID: 37619643 PMCID: PMC10841300 DOI: 10.1016/j.healun.2023.08.012] [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: 03/19/2023] [Revised: 07/27/2023] [Accepted: 08/15/2023] [Indexed: 08/26/2023] Open
Abstract
In the US, the first pediatric donation after circulatory death (DCD) thoracic transplant was done in 2004; however, ethical controversy led to minimal utilization of these donors. The present study was performed to characterize the current state of pediatric DCD heart and lung transplantation (HTx, LTx). Children (<18 year old) who underwent HTx or LTx using DCD donors from June 2004 to June 2022 were identified in the United Network for Organ Sharing registry. A total of 14 DCD recipients were identified: 7 (50%) HTx and 7 (50%) LTx. Donor and recipient demographics are described in Table 1. One and 5-year post-transplant survival were as follows: HTx recipients (64% for each) and LTx recipients (86%, 55%). Although often discussed, the national experience with DCD donors for pediatric HTx and LTx remains limited and not being practiced consistently by any pediatric program. Given the critical organ shortage, DCD use in the field of pediatric thoracic transplantation should be strongly considered.
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Affiliation(s)
- Hosam F Ahmed
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Amalia Guzman-Gomez
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Kevin Kulshrestha
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Eashwar C Kantemneni
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Clifford Chin
- Division of Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Awais Ashfaq
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Farhan Zafar
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - David L S Morales
- Department of Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
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27
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Li SS, Funamoto M, Osho AA, Rabi SA, Paneitz D, Singh R, Michel E, Lewis GD, D'Alessandro DA. Acute rejection in donation after circulatory death (DCD) heart transplants. J Heart Lung Transplant 2024; 43:148-157. [PMID: 37717931 PMCID: PMC10873067 DOI: 10.1016/j.healun.2023.09.004] [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: 05/31/2023] [Revised: 08/25/2023] [Accepted: 09/06/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Donation after circulatory death (DCD) heart transplantation has promising early survival, but the effects on rejection remain unclear. METHODS The United Network for Organ Sharing database was queried for adult heart transplants from December 1, 2019, to December 31, 2021. Multiorgan transplants and loss to follow-up were excluded. The primary outcome was acute rejection, comparing DCD and donation after brain death (DBD) transplants. RESULTS A total of 292 DCD and 5,582 DBD transplants met study criteria. Most DCD transplants were transplanted at status 3-4 (61.0%) compared to 58.6% of DBD recipients at status 1-2. DCD recipients were less likely to be hospitalized at transplant (26.7% vs 58.3%, p < 0.001) and to require intra-aortic balloon pumping (IABP; 9.6% vs 28.9%, p < 0.001), extracorporeal membrane oxygenation (ECMO; 0.3% vs 5.9%, p < 0.001) or temporary left ventricular assist device (LVAD; 1.0% vs 2.7%, p < 0.001). DCD recipients were more likely to have acute rejection prior to discharge (23.3% vs 18.4%, p = 0.044) and to be hospitalized for rejection (23.4% vs 11.4%, p = 0.003) at a median follow-up of 15 months; the latter remained significant after propensity matching. On multivariable logistic regression, DCD donation was an independent predictor of acute rejection (odds ratio [OR] 1.47, 95% confidence interval [CI] 1.00-2.15, p = 0.048) and hospitalization for rejection (OR 2.03, 95% CI 1.06-3.70, p = 0.026). On center-specific subgroup analysis, DCD recipients continued to have higher rates of hospitalization for rejection (23.4% vs 13.8%, p = 0.043). CONCLUSIONS DCD recipients are more likely to experience acute rejection. Early survival is similar between DCD and DBD recipients, but long-term implications of increased early rejection in DCD recipients require further investigation.
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Affiliation(s)
- Selena S Li
- Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts.
| | | | - Asishana A Osho
- Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Seyed A Rabi
- Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Dane Paneitz
- Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Ruby Singh
- Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Eriberto Michel
- Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Gregory D Lewis
- Cardiology, Massachusetts General Hospital, Boston, Massachusetts
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28
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Ashby NE. Donation After Cardiac Death: Origins, Current State, and New Directions. Adv Anesth 2023; 41:225-238. [PMID: 38251620 DOI: 10.1016/j.aan.2023.06.008] [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] [Indexed: 01/23/2024]
Abstract
Donation after cardiac death (DCD) is a growing source of organs for transplantation. DCD can be challenging to understand due to variations in practice. DCD also holds great potential for ethical compromise making it uncomfortable for many practitioners. This article traces the origin of DCD from the beginnings of organ transplant and lays out the general pattern of the process before touching on advances to this rapidly changing field.
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Affiliation(s)
- Nathan E Ashby
- Division of Critical Care Medicine, Department of Anesthesiology, Vanderbilt University Medical Center, 1211 21st Avenue South, MAB Suite 422, Nashville, TN 37212, USA.
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29
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Ngai J, Jankowska A. Donation After Circulatory Death Heart Transplants: Doing More and Waiting Less. J Cardiothorac Vasc Anesth 2023; 37:2409-2412. [PMID: 37743133 DOI: 10.1053/j.jvca.2023.08.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 08/20/2023] [Indexed: 09/26/2023]
Affiliation(s)
- Jennie Ngai
- Department of Anesthesiology, Perioperative Care and Pain Medicine, NYU Langone Health, New York, NY.
| | - Anna Jankowska
- Department of Anesthesiology, Perioperative Care and Pain Medicine, NYU Langone Health, New York, NY
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30
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Choi K, Spadaccio C, Ribeiro RV, Langlais BT, Villavicencio MA, Pennington K, Spencer PJ, Daly RC, Mallea J, Keshavjee S, Cypel M, Saddoughi SA. Early national trends of lung allograft use during donation after circulatory death heart procurement in the United States. JTCVS OPEN 2023; 16:1020-1028. [PMID: 38204714 PMCID: PMC10775073 DOI: 10.1016/j.xjon.2023.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/26/2023] [Accepted: 08/21/2023] [Indexed: 01/12/2024]
Abstract
Objective Innovative technology such as normothermic regional perfusion and the Organ Care System has expanded donation after circulatory death heart transplantation. We wanted to investigate the impact of donation after circulatory death heart procurement in concurrent lung donation and implantation at a national level. Methods We reviewed the United Network for Organ Sharing database for heart donation between December 2019 and March 2022. Donation after circulatory death donors were separated from donation after brain death donors and further categorized based on concomitant organ procurement of lung and heart, or heart only. Results A total of 8802 heart procurements consisted of 332 donation after circulatory death donors and 8470 donation after brain death donors. Concomitant lung procurement was lower among donation after circulatory death donors (19.3%) than in donation after brain death donors (38.0%, P < .001). The transplant rate of lungs in the setting of concomitant procurement is 13.6% in donation after circulatory death, whereas it is 38% in donation after brain death (P < .001). Of the 121 lungs from 64 donation after circulatory death donors, 22 lungs were retrieved but discarded (32.2%). Normothermic regional perfusion was performed in 37.3% of donation after circulatory death donors, and there was no difference in lung use between normothermic regional perfusion versus direct procurement and perfusion (20.2% and 18.8%). There was also no difference in 1-year survival between normothermic regional perfusion and direct procurement and perfusion. Conclusions Although national use of donation after circulatory death hearts has increased, donation after circulatory death lungs has remained at a steady state. The implantation of lungs after concurrent procurement with the heart remains low, whereas transplantation of donation after circulatory death hearts is greater than 90%. The use of normothermic regional perfusion lungs has been controversial, and we report comparable 1-year outcomes to standard donation after circulatory death lungs. Further studies are warranted to investigate the underlying mechanisms of normothermic regional perfusion on lung function.
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Affiliation(s)
- Kukbin Choi
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minn
| | | | | | - Blake T. Langlais
- Department of Quantitative Health Sciences, Mayo Clinic, Scottsdale, Ariz
| | | | - Kelly Pennington
- Division of Pulmonary & Critical Care, Department of Medicine, Mayo Clinic, Rochester, Minn
| | | | - Richard C. Daly
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minn
| | - Jorge Mallea
- Division of Pulmonary, Allergy and Sleep Medicine, Department of Medicine, Mayo Clinic, Jacksonville, Fla
| | - Shaf Keshavjee
- Department of Thoracic Surgery, Toronto General Hospital, Toronto, Ontario, Canada
| | - Marcelo Cypel
- Department of Thoracic Surgery, Toronto General Hospital, Toronto, Ontario, Canada
| | - Sahar A. Saddoughi
- Department of Cardiovascular Surgery, Mayo Clinic, Rochester, Minn
- Division of Thoracic Surgery, Department of Surgery, Mayo Clinic, Rochester, Minn
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31
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Croome KP, Brown TE, Mabrey RL, Sonnenwald SL, Burns JM, Mao SA, Clendenon JN, Nguyen JH, Perry DK, Maddox RG, Taner CB. Development of a portable abdominal normothermic regional perfusion (A-NRP) program in the United States. Liver Transpl 2023; 29:1282-1291. [PMID: 37040930 DOI: 10.1097/lvt.0000000000000156] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/26/2023] [Indexed: 04/13/2023]
Abstract
In situ abdominal normothermic regional perfusion (A-NRP) has been used for liver transplantation (LT) with donation after circulatory death (DCD) liver grafts in Europe with excellent results; however, adoption of A-NRP in the United States has been lacking. The current report describes the implementation and results of a portable, self-reliant A-NRP program in the United States. Isolated abdominal in situ perfusion with an extracorporeal circuit was achieved through cannulation in the abdomen or femoral vessels and inflation of a supraceliac aortic balloon and cross-clamp. The Quantum Transport System by Spectrum was used. The decision to use livers for LT was made through an assessment of perfusate lactate (q15min). From May to November 2022, 14 A-NRP donation after circulatory death procurements were performed by our abdominal transplant team (N = 11 LT, N = 20 kidney transplants, and 1 kidney-pancreas transplant). The median A-NRP run time was 68 minutes. None of the LT recipients had post-reperfusion syndrome, nor were there any cases of primary nonfunction. All livers were functioning well at the time of maximal follow-up with zero cases of ischemic cholangiopathy. The current report describes the feasibility of a portable A-NRP program that can be used in the United States. Excellent short-term post-transplant results were achieved with both livers and kidneys procured from A-NRP.
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Affiliation(s)
| | - Thomas E Brown
- Division of Cardiothoracic Surgery, Department of Surgery, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Richard L Mabrey
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | | | - Justin M Burns
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Shennen A Mao
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Jacob N Clendenon
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Justin H Nguyen
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Dana K Perry
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - Rebecca G Maddox
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
| | - C Burcin Taner
- Department of Transplant, Mayo Clinic Florida, Jacksonville, Florida, USA
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32
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DiChiacchio L, Goodwin ML, Kagawa H, Griffiths E, Nickel IC, Stehlik J, Selzman CH. Heart Transplant and Donors After Circulatory Death: A Clinical-Preclinical Systematic Review. J Surg Res 2023; 292:222-233. [PMID: 37657140 DOI: 10.1016/j.jss.2023.07.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 09/03/2023]
Abstract
INTRODUCTION Heart transplantation is the treatment of choice for end-stage heart failure. There is a mismatch between the number of donor hearts available and the number of patients awaiting transplantation. Expanding the donor pool is critically important. The use of hearts donated following circulatory death is one approach to increasing the number of available donor hearts. MATERIALS AND METHODS A systematic review was performed according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines utilizing Pubmed/MEDLINE and Embase. Articles including adult human studies and preclinical animal studies of heart transplantation following donation after circulatory death were included. Studies of pediatric populations or including organs other than heart were excluded. RESULTS Clinical experience and preclinical studies are reviewed. Clinical experience with direct procurement, normothermic regional perfusion, and machine perfusion are included. Preclinical studies addressing organ function assessment and enhancement of performance of marginal organs through preischemic, procurement, preservation, and reperfusion maneuvers are included. Articles addressing the ethical considerations of thoracic transplantation following circulatory death are also reviewed. CONCLUSIONS Heart transplantation utilizing organs procured following circulatory death is a promising method to increase the donor pool and offer life-saving transplantation to patients on the waitlist living with end-stage heart failure. There is robust ongoing preclinical and clinical research to optimize this technique and improve organ yield. There are also ongoing ethical considerations that must be addressed by consensus before wide adoption of this approach.
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Affiliation(s)
- Laura DiChiacchio
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah
| | - Matthew L Goodwin
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah
| | - Hiroshi Kagawa
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah
| | - Eric Griffiths
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah
| | - Ian C Nickel
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah
| | - Josef Stehlik
- Division of Cardiology, University of Utah, Salt Lake City, Utah
| | - Craig H Selzman
- Division of Cardiothoracic Surgery, University of Utah, Salt Lake City, Utah.
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Cain MT, Park SY, Schäfer M, Hay-Arthur E, Justison GA, Zhan QP, Campbell D, Mitchell JD, Randhawa SK, Meguid RA, David EA, Reece TB, Cleveland JC, Hoffman JR. Lung recovery utilizing thoracoabdominal normothermic regional perfusion during donation after circulatory death: The Colorado experience. JTCVS Tech 2023; 22:350-358. [PMID: 38152164 PMCID: PMC10750961 DOI: 10.1016/j.xjtc.2023.09.027] [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: 06/21/2023] [Revised: 08/22/2023] [Accepted: 09/21/2023] [Indexed: 12/29/2023] Open
Abstract
Objective Donation after circulatory death (DCD) procurement and transplantation after thoracoabdominal normothermic regional perfusion (TA-NRP) remains a novel technique to improve cardiac and hepatic allograft preservation but may be complicated by lung allograft pulmonary edema. We present a single-center series on early implementation of a lung-protective protocol with strategies to mitigate posttransplant pulmonary edema in DCD lung allografts after TA-NRP procurement. Methods Data from all lung transplantations performed using a TA-NRP procurement strategy from October 2022 to April 2023 are presented. Donor management consisted of key factors to reduce lung allograft pulmonary edema: aggressive predonation and early posttransplant diuresis, complete venous drainage at TA-NRP initiation, and early pulmonary artery venting upon initiation of systemic perfusion. Donor and recipient characteristics, procurement characteristics such as TA-NRP intervals, and 30-day postoperative outcomes were assessed. Results During the study period, 8 lung transplants were performed utilizing TA-NRP procurement from DCD donors. Donor ages ranged from 16 to 39 years and extubation time to declaration of death ranged from 10 to 90 minutes. Time from declaration to TA-NRP initiation was 7 to 17 minutes with TA-NRP perfusion times of 49 to 111 minutes. Median left and right allograft warm ischemia times were 55.5 minutes (interquartile range, 46.5-67.5 minutes) and 41.0 minutes (interquartile range, 39.0-53.0 minutes, respectively, with 2 recipients supported with cardiopulmonary bypass or venoarterial extracorporeal membrane oxygenation during implantation. No postoperative extracorporeal membrane oxygenation was required. There were no pulmonary-related deaths; however, 1 patient died from complications of severe necrotizing pancreatitis with a normal functioning allograft. All patients were extubated within 24 hours. Index intensive care unit length of stay ranged from 3 to 11 days with a hospital length of stay of 13 to 37 days. Conclusions Despite concern regarding quality of DCD lung allografts recovered using the TA-NRP technique, we report initial success using this procurement method. Implementation of strategies to mitigate pulmonary edema can result in acceptable outcomes following lung transplantation. Demonstration of short- and long-term safety and efficacy of this technique will become increasingly important as the use of TA-NRP for thoracic and abdominal allografts in DCD donors expands.
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Affiliation(s)
- Michael T. Cain
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Sarah Y. Park
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Michal Schäfer
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Emily Hay-Arthur
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - George A. Justison
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Qui Peng Zhan
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - David Campbell
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - John D. Mitchell
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Simran K. Randhawa
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Robert A. Meguid
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Elizabeth A. David
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - T. Brett Reece
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Joseph C. Cleveland
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
| | - Jordan R.H. Hoffman
- Division of Cardiothoracic Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, Colo
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Menachem JN, Patel CB, Schlendorf KH, Shah AS, Schroder JN, DeVore AD. Expanding the donor pool to improve outcomes for adults with complex congenital heart disease. J Heart Lung Transplant 2023; 42:1485-1488. [PMID: 37422145 DOI: 10.1016/j.healun.2023.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 06/08/2023] [Accepted: 06/22/2023] [Indexed: 07/10/2023] Open
Affiliation(s)
- Jonathan N Menachem
- Division of Cardiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Chetan B Patel
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Kelly H Schlendorf
- Division of Cardiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Ashish S Shah
- Department of Cardiac Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jacob N Schroder
- Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Adam D DeVore
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
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Urban M, Castleberry AW, Siddique A, Lowes BD, Stoller DA, Lundgren SW, Um JY. Utilization of Paragonix Sherpapak Cardiac Transport System for the Preservation of Donor Hearts After Circulatory Death. Transplant Proc 2023; 55:1997-2002. [PMID: 37739830 DOI: 10.1016/j.transproceed.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/04/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND Donation after circulatory death (DCD) heart transplantation is being increasingly adopted by transplant centers. The optimal method of DCD heart preservation during transport after in situ thoracoabdominal normothermic regional perfusion (TA-NRP) is not known. METHODS We evaluated our experience with the Paragonix SherpaPak Cardiac Transport System (SCTS) for the transport of DCD cardiac allografts after TA-NRP recovery between January 2021 and December 2022. We collected and evaluated donor characteristics, allograft ischemic intervals, and recipient baseline demographic and clinical variables, and short-term outcomes. RESULTS Twelve recipients received DCD grafts recovered with TA-NRP and transported in SCTS during the study period. The median age of 10 male and 2 female donors was 32 years (min 15, max 38). The median duration of functional warm ischemia was 12 minutes (min 8, max 22). Hearts were preserved in SCTS for a median of 158 minutes (min 37, max 224). Median recipient age was 61 years (min 28, max 70). Ten recipients (83%) survived to hospital discharge, with one death attributable to graft dysfunction (8%). The median vasoactive-inotropic (VIS) score at 72 hours post-transplantation of the entire cohort was 6 (min 0, max 15). The median length of intensive care unit stay in hospital survivors was 5 days (min 3, max 17) days and hospital stay 17 days (min 9, max 37). CONCLUSIONS The Paragonix SCTS provides efficacious preservation of DCD grafts for ≥3.5 hours. Organs transported with this device showed satisfactory post-transplantation function.
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Affiliation(s)
- Marian Urban
- Department of Surgery, Division of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, Nebraska.
| | - Anthony W Castleberry
- Department of Surgery, Division of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Aleem Siddique
- Department of Surgery, Division of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Brian D Lowes
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Douglas A Stoller
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Scott W Lundgren
- Department of Internal Medicine, Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - John Y Um
- Department of Surgery, Division of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, Nebraska
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Wisel SA, Steggerda JA, Thiessen C, Roll GR, Chen Q, Thomas J, Kaur B, Catarino P, Chikwe J, Kim IK. Preserved 2-y Liver Transplant Outcomes Following Simultaneous Thoracoabdominal DCD Organ Procurement Despite Effects on Liver Utilization Rate. Transplant Direct 2023; 9:e1528. [PMID: 37876918 PMCID: PMC10593259 DOI: 10.1097/txd.0000000000001528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/14/2023] [Accepted: 06/30/2023] [Indexed: 10/26/2023] Open
Abstract
Background Current techniques for donation after circulatory determination of death (DCD) heart procurement, through either direct procurement and machine perfusion or thoracoabdominal normothermic regional perfusion (NRP), have demonstrated excellent heart transplant outcomes. However, the impact of thoracoabdominal DCD (TA-DCD) heart procurement on liver allograft outcomes and utilization is poorly understood. Methods One hundred sixty simultaneous heart and liver DCD donors were identified using the United Network for Organ Sharing/Organ Procurement and Transplantation Network database between December 2019 and July 2021. Liver outcomes from TA-DCD donors were stratified by heart procurement technique and evaluated for organ utilization, graft survival, and patient survival. Results were compared with abdominal-only DCD (A-DCD; n = 1332) and donation after brain death (DBD; n = 12 891) liver transplants during the study interval. Kaplan-Meier methods with log-rank testing were used to evaluate patient and graft survival. Results One hundred thirty-three of 160 livers procured from TA-DCD donors proceeded to transplant. TA-DCD donors were younger (mean 28.26 y; P < 0.0001) with lower body mass index (mean 26.61; P < 0.0001) than A-DCD and DBD donors. TA-DCD livers had equivalent patient survival ( P = 0.893) and superior graft survival (P = 0.009) compared with A-DCD. TA-DCD livers had higher rates of organ discard for long warm ischemia time (37.0%) than A-DCD (20.5%) and DBD (0.5%; P < 0.0001), with direct procurement and machine perfusion procurements leading to a higher discard rate (18.5%) than NRP procurements (7.4%). Conclusions Liver transplants after TA-DCD donation demonstrated equivalent patient outcomes and excellent graft outcomes. NRP procurements resulted in the lowest rate of organ discard after DCD donation and may represent an optimal strategy to maximize organ utilization.
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Affiliation(s)
- Steven A. Wisel
- Department of Surgery, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Justin A. Steggerda
- Department of Surgery, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Carrie Thiessen
- Division of Transplant Surgery, University of Wisconsin, Madison, WI
| | - Garrett R. Roll
- Division of Transplantation, University of California, San Francisco, San Francisco, CA
| | - Qiudong Chen
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Jason Thomas
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Bhupinder Kaur
- Department of Surgery, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Pedro Catarino
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Joanna Chikwe
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Irene K. Kim
- Department of Surgery, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA
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37
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Siddique A, Parekh KR, Huddleston SJ, Shults A, Locke JE, Keshavamurthy S, Schwartz G, Hartwig MG, Whitson BA. A call to action in thoracic transplant surgical training. J Heart Lung Transplant 2023; 42:1627-1631. [PMID: 37268052 DOI: 10.1016/j.healun.2023.05.017] [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: 12/12/2022] [Revised: 05/19/2023] [Accepted: 05/30/2023] [Indexed: 06/04/2023] Open
Abstract
Thoracic organ recovery and implantation is increasing in complexity. Simultaneously the logistic burden and associated cost is rising. An electronic survey distributed to the surgical directors of thoracic transplant programs in the United States indicated dissatisfaction amongst 72% of respondents with current procurement training and 85% of respondents favored a process for certification in thoracic organ transplantation. These responses highlight concerns for the current paradigm of training in thoracic transplantation. We discuss the implications of advancements in organ retrieval and implant for surgical training and propose that the thoracic transplant community might address the need through formalized training in procurement and certification in thoracic transplantation.
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Affiliation(s)
- A Siddique
- University of Nebraska Medical Center, Department of Surgery, Division of Cardiothoracic Surgery, Omaha, Nebraska.
| | - K R Parekh
- University of Iowa Hospitals and Clinics, Department of Cardiothoracic Surgery, Carver College of Medicine, Iowa City, Iowa
| | - S J Huddleston
- University of Minnesota, Department of Surgery, Division of Cardiothoracic Surgery
| | - A Shults
- American Society of Thoracic Surgeons, Arlington, Virginia
| | - J E Locke
- University of Alabama at Birmingham, Department of Surgery, Division of Transplantation, Birmingham, Alabama
| | - S Keshavamurthy
- University of Kentucky College of Medicine, Department of Surgery, Division of Cardiothoracic Surgery, Lexington, Kentucky
| | - G Schwartz
- Baylor University Medical Center, Department of Thoracic Surgery, Dallas, Texas
| | - M G Hartwig
- Duke University Health System, Department of Surgery, Division of Cardiovascular and Thoracic Surgery, Durham, North Carolina
| | - B A Whitson
- The Ohio State University Wexner Medical Center, Department of Surgery, Division of Cardiac Surgery, Columbus, Ohio
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38
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Crespo MM, Samra M, Korsun A, Butler L, Byford H, Tietjen A, Stillion L, Ohler L, Mehta S. Collaborative leadership in transplantation: Blending clinical, business, and regulatory roles. Clin Transplant 2023; 37:e15126. [PMID: 37747969 DOI: 10.1111/ctr.15126] [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: 05/18/2023] [Revised: 08/16/2023] [Accepted: 09/05/2023] [Indexed: 09/27/2023]
Abstract
Transplantation is a high-risk, high-cost treatment for end-stage diseases and is the most strictly regulated area of healthcare in the United States. Thus, achieving success for patients and the program requires skillful and collaborative leadership. Various factors, such as outcomes, volume, and financial health, may measure the success of a transplant program. Strong collaboration between clinical and administrative leaders is key to achieving and maintaining success in those three categories. Clinical leaders of adult programs, such as medical and surgical directors, bear the primary responsibility for a program's volume, outcomes, and patient safety, while administrative directors are focused on business intelligence and regulatory compliance. This paper aims to provide readers with insights into the critical role of collaborative leadership in running a successful program, with a focus on clinical, business, and regulatory perspectives.
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Affiliation(s)
- Maria M Crespo
- Division of Pulmonary, Allergy, and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Manpreet Samra
- Kidney Transplant Program, Edward Hines Jr VA Hospital, Hines, Illinois, USA
| | | | | | | | - Andrea Tietjen
- Cooperman Barnabas Medical Center, Livingston, New Jersey, USA
| | | | - Linda Ohler
- George Washington University, Washington, District of Columbia, USA
| | - Shikha Mehta
- Kidney Transplant Program, University of Alabama, Birmingham, Alabama, USA
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39
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DeVries SA, Smith J. Increasing donor heart use in cardiac transplantation. JAAPA 2023; 36:1-4. [PMID: 37884046 DOI: 10.1097/01.jaa.0000979512.09945.c6] [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: 10/28/2023]
Abstract
ABSTRACT A shortage of donor hearts remains a critical problem in cardiac transplantation, resulting in longer recipient wait times and increased wait list mortality. The disparity between available donor hearts and patients with end-stage heart failure who need transplant is expected to grow. The donor heart pool can be increased by using organs from expanded criteria, Public Health Service increased risk, hepatitis C, and donation after circulatory death donors.
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Affiliation(s)
- Stephen A DeVries
- Stephen A. DeVries practices in cardiothoracic surgery at Vanderbilt University Medical Center in Nashville, Tenn. Jason W. Smith is a cardiothoracic surgeon and director of heart transplantation and mechanical circulatory support at the University of California-San Francisco. The authors have disclosed no potential conflicts of interest, financial or otherwise
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40
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Siddiqi HK, Trahanas J, Xu M, Wells Q, Farber-Eger E, Pasrija C, Amancherla K, Debose-Scarlett A, Brinkley DM, Lindenfeld J, Menachem JN, Ooi H, Pedrotty D, Punnoose L, Rali AS, Sacks S, Wigger M, Zalawadiya S, McMaster W, Devries S, Shah A, Schlendorf K. Outcomes of Heart Transplant Donation After Circulatory Death. J Am Coll Cardiol 2023; 82:1512-1520. [PMID: 37793748 DOI: 10.1016/j.jacc.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 10/06/2023]
Abstract
BACKGROUND Heart transplantation using donation after circulatory death (DCD) allografts is increasingly common, expanding the donor pool and reducing transplant wait times. However, data remain limited on clinical outcomes. OBJECTIVES We sought to compare 6-month and 1-year clinical outcomes between recipients of DCD hearts, most of them recovered with the use of normothermic regional perfusion (NRP), and recipients of donation after brain death (DBD) hearts. METHODS We conducted a single-center retrospective observational study of all adult heart-only transplants from January 2020 to January 2023. Recipient and donor data were abstracted from medical records and the United Network for Organ Sharing registry, respectively. Survival analysis and Cox regression were used to compare the groups. RESULTS During the study period, 385 adults (median age 57.4 years [IQR: 48.0-63.7 years]) underwent heart-only transplantation, including 122 (32%) from DCD donors, 83% of which were recovered with the use of NRP. DCD donors were younger and had fewer comorbidities than DBD donors. DCD recipients were less often hospitalized before transplantation and less likely to require pretransplantation temporary mechanical circulatory support compared with DBD recipients. There were no significant differences between groups in 1-year survival, incidence of severe primary graft dysfunction, treated rejection during the first year, or likelihood of cardiac allograft vasculopathy at 1 year after transplantation. CONCLUSIONS In the largest single-center comparison of DCD and DBD heart transplantations to date, outcomes among DCD recipients are noninferior to those of DBD recipients. This study adds to the published data supporting DCD donors as a safe means to expand the heart donor pool.
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Affiliation(s)
- Hasan K Siddiqi
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
| | - John Trahanas
- Department of Cardiothoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Meng Xu
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Quinn Wells
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Eric Farber-Eger
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Chetan Pasrija
- Department of Cardiothoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kaushik Amancherla
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Alexandra Debose-Scarlett
- Department of Cardiothoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - D Marshall Brinkley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - JoAnn Lindenfeld
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jonathan N Menachem
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Henry Ooi
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Medicine, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Dawn Pedrotty
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Medicine, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Lynn Punnoose
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Aniket S Rali
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Suzanne Sacks
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Mark Wigger
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Medicine, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Sandip Zalawadiya
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - William McMaster
- Department of Cardiothoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Steven Devries
- Department of Cardiothoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Ashish Shah
- Department of Cardiothoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kelly Schlendorf
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Kagawa H, Goodwin M, Stehlik J, Campsen J, Baker T, Selzman CH. A Case Report of Triple Organ Transplantation From a Donor After Circulatory Death Using Thoraco-Abdominal Normothermic Regional Perfusion. Transplant Proc 2023; 55:1883-1887. [PMID: 37612153 DOI: 10.1016/j.transproceed.2023.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023]
Abstract
Organ transplantation with donation after circulatory death can potentially increase the donor pool. Here, we report the rare case of triple-organ (heart/liver/kidney) transplantation from a donor after circulatory death using thoraco-abdominal normothermic regional perfusion. The recipient was a 61-year-old man with end-stage heart failure, liver failure, and kidney failure secondary to arrhythmogenic right ventricular dysplasia. He received a heart/liver/kidney transplantation from a donor after circulatory death. The course was complicated with primary graft dysfunction of the heart that resolved on postoperative day 3. The patient was discharged on postoperative day 39. He has no evidence for rejection on heart biopsy, and all 3 organs exhibit stable function. The use of donation after cardiac death donors greatly increases the donor pool and should be considered for patients requiring multiorgan transplantation. The use of thoraco-abdominal normothermic reperfusion is not only a feasible method for multiorgan procurement but also provides enhanced protection for all transplanted organs.
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Affiliation(s)
- Hiroshi Kagawa
- Division of Cardiothoracic Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Matthew Goodwin
- Division of Cardiothoracic Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Josef Stehlik
- Division of Cardiovascular Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Jeffrey Campsen
- Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Talia Baker
- Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah School of Medicine, Salt Lake City, Utah
| | - Craig H Selzman
- Division of Cardiothoracic Surgery, University of Utah School of Medicine, Salt Lake City, Utah.
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Cheshire C, Messer S, Martinez L, Vokshi I, Ali J, Cernic S, Page A, Andal R, Berman M, Kaul P, Osman M, Rafiq M, Goddard M, Tweed K, Jenkins D, Tsui S, Large S, Kydd A, Lewis C, Parameshwar J, Pettit S, Bhagra S. Graft function and incidence of cardiac allograft vasculopathy in donation after circulatory-determined death heart transplant recipients. Am J Transplant 2023; 23:1570-1579. [PMID: 37442277 DOI: 10.1016/j.ajt.2023.07.003] [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: 02/14/2023] [Revised: 07/02/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
Experience in donation after circulatory-determined death (DCD) heart transplantation (HTx) is expanding. There is limited information on the functional outcomes of DCD HTx recipients. We sought to evaluate functional outcomes in our cohort of DCD recipients. We performed a single-center, retrospective, observational cohort study comparing outcomes in consecutive DCD and donation after brain death (DBD) HTx recipients between 2015 and 2019. Primary outcome was allograft function by echocardiography at 12 and 24 months. Secondary outcomes included incidence of cardiac allograft vasculopathy, treated rejection, renal function, and survival. Seventy-seven DCD and 153 DBD recipients were included. There was no difference in left ventricular ejection fraction at 12 months (59% vs 59%, P = .57) and 24 months (58% vs 58%, P = .87). There was no significant difference in right ventricular function at 12 and 24 months. Unadjusted survival between DCD and DBD recipients at 5 years (85.7% DCD and 81% DBD recipients; P = .45) was similar. There were no significant differences in incidence of cardiac allograft vasculopathy (odds ratio 1.59, P = .21, 95% confidence interval 0.77-3.3) or treated rejection (odds ratio 0.60, P = .12, 95% confidence interval 0.32-1.15) between DBD and DCD recipients. Post-transplant renal function was similar at 1 and 2 years. In conclusion, cardiac allografts from DCD donors perform similarly to a contemporary population of DBD allografts in the medium term.
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Affiliation(s)
- Caitlin Cheshire
- Department of Cardiology, Alfred Health, Melbourne, Australia; Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Simon Messer
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Luis Martinez
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Ismail Vokshi
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Jason Ali
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Sendi Cernic
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Aravinda Page
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Ryan Andal
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Marius Berman
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Pradeep Kaul
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Mohamed Osman
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Muhammad Rafiq
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Martin Goddard
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Katharine Tweed
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - David Jenkins
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Steven Tsui
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Stephen Large
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Anna Kydd
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Clive Lewis
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Jayan Parameshwar
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Stephen Pettit
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
| | - Sai Bhagra
- Transplant Unit, Royal Papworth Hospital NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
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Kwon JH, Blanding WM, Shorbaji K, Scalea JR, Gibney BC, Baliga PK, Kilic A. Waitlist and Transplant Outcomes in Organ Donation After Circulatory Death: Trends in the United States. Ann Surg 2023; 278:609-620. [PMID: 37334722 DOI: 10.1097/sla.0000000000005947] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
OBJECTIVES To summarize waitlist and transplant outcomes in kidney, liver, lung, and heart transplantation using organ donation after circulatory death (DCD). BACKGROUND DCD has expanded the donor pool for solid organ transplantation, most recently for heart transplantation. METHODS The United Network for Organ Sharing registry was used to identify adult transplant candidates and recipients in the most recent allocation policy eras for kidney, liver, lung, and heart transplantation. Transplant candidates and recipients were grouped by acceptance criteria for DCD versus brain-dead donors [donation after brain death (DBD)] only and DCD versus DBD transplant, respectively. Propensity matching and competing-risks regression was used to model waitlist outcomes. Survival was modeled using propensity matching and Kaplan-Meier and Cox regression analysis. RESULTS DCD transplant volumes have increased significantly across all organs. Liver candidates listed for DCD organs were more likely to undergo transplantation compared with propensity-matched candidates listed for DBD only, and heart and liver transplant candidates listed for DCD were less likely to experience death or clinical deterioration requiring waitlist inactivation. Propensity-matched DCD recipients demonstrated an increased mortality risk up to 5 years after liver and kidney transplantation and up to 3 years after lung transplantation compared with DBD. There was no difference in 1-year mortality between DCD and DBD heart transplantation. CONCLUSIONS DCD continues to expand access to transplantation and improves waitlist outcomes for liver and heart transplant candidates. Despite an increased risk for mortality with DCD kidney, liver, and lung transplantation, survival with DCD transplant remains acceptable.
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Affiliation(s)
- Jennie H Kwon
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, SC
| | - Walker M Blanding
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, SC
| | - Khaled Shorbaji
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, SC
| | - Joseph R Scalea
- Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC
| | - Barry C Gibney
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, SC
| | - Prabhakar K Baliga
- Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC
| | - Arman Kilic
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, SC
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Schroder JN, Scheuer S, Catarino P, Caplan A, Silvestry SC, Jeevanandam V, Large S, Shah A, MacDonald P, Slaughter MS, Naka Y, Milano CA. The American Association for Thoracic Surgery 2023 Expert Consensus Document: Adult cardiac transplantation utilizing donors after circulatory death. J Thorac Cardiovasc Surg 2023; 166:856-869.e5. [PMID: 37318399 DOI: 10.1016/j.jtcvs.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/10/2023] [Indexed: 06/16/2023]
Affiliation(s)
- Jacob N Schroder
- Department of Surgery, Duke University Medical Center, Durham, NC
| | - Sarah Scheuer
- Department of Surgery, St Vincent's Hospital, Sydney, Australia
| | | | - Arthur Caplan
- Department of Bioethics, New York University Grossman School of Medicine, New York, NY
| | | | | | | | - Ashish Shah
- Department of Cardiothoracic Surgery, Vanderbilt University, Nashville, Tenn
| | - Peter MacDonald
- Department of Surgery, St Vincent's Hospital, Sydney, Australia
| | | | - Yoshifumi Naka
- Department of Cardiothoracic Surgery, Weill Cornell Medical College, New York, NY
| | - Carmelo A Milano
- Department of Surgery, Duke University Medical Center, Durham, NC.
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Kaffka genaamd Dengler SE, Vervoorn MT, Brouwer M, de Jonge J, van der Kaaij NP. Dilemmas concerning heart procurement in controlled donation after circulatory death. Front Cardiovasc Med 2023; 10:1225543. [PMID: 37583588 PMCID: PMC10424927 DOI: 10.3389/fcvm.2023.1225543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/11/2023] [Indexed: 08/17/2023] Open
Abstract
With an expanding population at risk for heart failure and the resulting increase in patients admitted to the waiting list for heart transplantation, the demand of viable organs exceeds the supply of suitable donor hearts. Use of hearts after circulatory death has reduced this deficit. Two primary techniques for heart procurement in circulatory death donors have been described: direct procurement and perfusion and thoraco-abdominal normothermic regional perfusion. While the former has been accepted as an option for heart procurement in circulatory death donors, the latter technique has raised some ethical questions in relation to the dead donor rule. In this paper we discuss the current dilemmas regarding these heart procurement protocols in circulatory death donors.
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Affiliation(s)
| | - M. T. Vervoorn
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - M. Brouwer
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - J. de Jonge
- Department of Surgery, Erasmus Medical Center Transplant Institute, Rotterdam, Netherlands
| | - N. P. van der Kaaij
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, Utrecht, Netherlands
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Wall A, Rosenzweig M, McKenna GJ, Ma TW, Asrani SK, Testa G. Six-month abdominal transplant recipient outcomes from donation after circulatory death heart donors: A retrospective analysis by procurement technique. Am J Transplant 2023; 23:987-995. [PMID: 37088143 DOI: 10.1016/j.ajt.2023.04.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 04/07/2023] [Accepted: 04/19/2023] [Indexed: 04/25/2023]
Abstract
Standard US practice for donation after circulatory death (DCD) abdominal organ procurement is superrapid recovery (SRR). A newer approach using thoracoabdominal normothermic regional perfusion (TA-NRP) shows promise for better recipient outcomes for all organs, but there are few reports of abdominal recipient outcomes from TA-NRP donors. We used the United Network for Organ Sharing data to identify all cardiac DCD donors from October 1, 2020, to May 20, 2022, and categorized them by recovery procedure (SRR vs TA-NRP). We then identified all liver, kidney, and pancreas recipients of these donors for whom 6-month outcome data were available and compared patient and graft survival, kidney delayed graft function (DGF), and biliary complications between TA-NRP DCD and SRR DCD organ recipients. Patient and graft survival did not differ significantly between groups for either kidney or liver recipients. Significantly fewer TA-NRP kidney recipients developed DGF (12.7% [15/118] vs 42.0% [84/200], P <.001), and TA-NRP and pumped kidneys had lower odds for DGF on multivariate analysis. No liver recipients in either group had biliary complications or were relisted for transplantation for ischemic cholangiopathy. Although long-term outcomes need to be investigated, our early results show similar outcomes for recipients of TA-NRP DCD abdominal organs versus recipients of SRR DCD abdominal organs. We believe that TA-NRP is an effective approach to expand the use of DCD organs.
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Affiliation(s)
- Anji Wall
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA.
| | - Matthew Rosenzweig
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA
| | - Gregory J McKenna
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA
| | - Tsung-Wei Ma
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA
| | - Sumeet K Asrani
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA
| | - Giuliano Testa
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA
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47
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Thomas J, Chen Q, Roach A, Wolfe S, Osho AA, Sundaram V, Wisel SA, Megna D, Emerson D, Czer L, Esmailian F, Chikwe J, Kim I, Catarino P. Donation after circulatory death heart procurement strategy impacts utilization and outcomes of concurrently procured abdominal organs. J Heart Lung Transplant 2023; 42:993-1001. [PMID: 37037750 PMCID: PMC11181754 DOI: 10.1016/j.healun.2023.02.1497] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 02/14/2023] [Accepted: 02/17/2023] [Indexed: 03/06/2023] Open
Abstract
INTRODUCTION The impact of donation after circulatory death (DCD) heart procurement techniques on the utilization and outcomes of concurrently procured DCD livers and kidneys remains unclear. METHODS Using the United Network for Organ Sharing database, we identified 246 DCD donors whose heart was procured using direct procurement and ex-situ machine perfusion and 128 DCD donors whose heart was procured using in-situ thoracoabdominal normothermic regional perfusion (12/2019-03/2022). We evaluated the transplantation rate of concurrently procured DCD livers and kidneys (defined as the number of organs transplanted/total number of organs available for procurement) and their post-transplant outcomes. RESULTS The transplantation rate of concurrently procured DCD livers was higher with in-situ perfusion compared to direct procurement (67.1% vs 56.5%, p = 0.045). After excluding pediatric, multiorgan, and repeat transplant recipients, there was no difference in 6-month liver graft failure rate (direct procurement 0.9% vs in-situ perfusion 0%, p > 0.99). Recipients of kidneys procured with in-situ perfusion had less delayed graft function (11.3% vs 41.5%, p < 0.0001) shorter length of stay, and lower serum creatinine at discharge (both p < 0.05). Six-month recipient survival in the direct procurement and in-situ perfusion group were similar after DCD liver and kidney transplantation (p = 0.24 and 0.79 respectively). CONCLUSIONS Compared to direct procurement, DCD heart procurement with in-situ thoracoabdominal normothermic regional perfusion was associated with increased utilization of DCD livers and a lower incidence of delayed graft function in concurrently procured DCD kidneys. Broader implementation of DCD heart transplantation must maximize the transplant potential of concurrently procured abdominal organs and ensure their successful outcomes.
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Affiliation(s)
- Jason Thomas
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Qiudong Chen
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Amy Roach
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Stanley Wolfe
- Division of Cardiac Surgery, Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Asishana A Osho
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California; Division of Cardiac Surgery, Corrigan Minehan Heart Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Vinay Sundaram
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California
| | - Steven A Wisel
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California
| | - Dominick Megna
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Dominic Emerson
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Lawrence Czer
- Department of Cardiology, Smidt Heart Institute, Los Angeles, California
| | - Fardad Esmailian
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Joanna Chikwe
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Irene Kim
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California
| | - Pedro Catarino
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California.
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Stewart D, Hasz R, Lonze B. Beyond donation to organ utilization in the USA. Curr Opin Organ Transplant 2023; 28:197-206. [PMID: 36912063 DOI: 10.1097/mot.0000000000001060] [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: 03/14/2023]
Abstract
PURPOSE OF REVIEW The deceased donor organ pool has broadened beyond young, otherwise healthy head trauma victims. But an abundance of donated organs only benefits patients if they are accepted, expeditiously transported and actually transplanted. This review focuses on postdonation challenges and opportunities to increase the number of transplants through improved organ utilization. RECENT FINDINGS We build upon recently proposed changes in terminology for measuring organ utilization. Among organs recovered for transplant, the nonuse rate (NUR REC ) has risen above 25% for kidneys and pancreata. Among donors, the nonuse rate (NUR DON ) has risen to 40% for livers and exceeds 70% for thoracic organs. Programme-level variation in offer acceptance rates vastly exceeds variation in the traditional, 1-year survival benchmark. Key opportunities to boost utilization include donation after circulatory death and hepatitis C virus (HCV)+ organs; acute kidney injury and suboptimal biopsy kidneys; older and steatotic livers. SUMMARY Underutilization of less-than-ideal, yet transplant-worthy organs remains an obstacle to maximizing the impact of the U.S. transplant system. The increased risk of inferior posttransplant outcomes must always be weighed against the risks of remaining on the waitlist. Advanced perfusion technologies; tuning allocation systems for placement efficiency; and data-driven clinical decision support have the potential to increase utilization of medically complex organs.
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Affiliation(s)
- Darren Stewart
- Department of Surgery, NYU Langone Health, New York, New York
| | - Richard Hasz
- Gift of Life Donor Program, Philadelphia, Pennsylvania, USA
| | - Bonnie Lonze
- Department of Surgery, NYU Langone Health, New York, New York
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49
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Myneni M, Cheema FH, Rajagopal K. Alterations in Coronary Blood Flow and the Risk of Left Ventricular Distension in Venoarterial Extracorporeal Membrane Oxygenation. ASAIO J 2023; 69:552-560. [PMID: 36867847 DOI: 10.1097/mat.0000000000001905] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
Previous theoretical studies have suggested that veno-arterial extracorporeal membrane oxygenation (VA-ECMO) ought to consistently result in markedly increased left ventricular (LV) intracavitary pressures and volumes because of increased LV afterload. However, this phenomenon of LV distension does not universally occur and occurs only in a minority of cases. We sought to explain this discrepancy by considering the potential implications of VA-ECMO support on coronary blood flow and consequently improved LV contractility (the "Gregg" effect), in addition to the effects of VA-ECMO support upon LV loading conditions, in a lumped parameter-based theoretical circulatory model. We found that LV systolic dysfunction resulted in reduced coronary blood flow; VA-ECMO support augmented coronary blood flow proportionally to the circuit flow rate. On VA-ECMO support, a weak or absent Gregg effect resulted in increased LV end-diastolic pressures and volumes and increased end-systolic volume with decreased LV ejection fraction (LVEF), consistent with LV distension. In contrast, a more robust Gregg effect resulted in unaffected and/or even reduced LV end-diastolic pressure and volume, end-systolic volume, and unaffected or even increased LVEF. Left ventricular contractility augmentation proportional to coronary blood flow increased by VA-ECMO support may be an important contributory mechanism underlying why LV distension is observed only in a minority of cases.
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Affiliation(s)
- Manoj Myneni
- From the Department of Clinical Sciences, College of Medicine, University of Houston, Houston, Texas
| | - Faisal H Cheema
- From the Department of Clinical Sciences, College of Medicine, University of Houston, Houston, Texas
| | - Keshava Rajagopal
- Division of Cardiac Surgery, Department of Surgery, Sidney Kimmel Medical College, Thomas Jefferson University
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50
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Zhou AL, Ruck JM, Casillan AJ, Larson EL, Shou BL, Karius AK, Ha JS, Shah PD, Merlo CA, Bush EL. Early United States experience with lung donation after circulatory death using thoracoabdominal normothermic regional perfusion. J Heart Lung Transplant 2023; 42:693-696. [PMID: 36990867 PMCID: PMC10192114 DOI: 10.1016/j.healun.2023.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 02/10/2023] [Accepted: 03/02/2023] [Indexed: 03/11/2023] Open
Abstract
Thoracoabdominal normothermic regional perfusion (TA-NRP) has recently begun being utilized in the United States for recovery of cardiothoracic allografts from some donors after circulatory death (DCD), but data on lungs recovered in this method is limited to case reports. We conducted a national retrospective review of lung transplants from DCD donors recovered using TA-NRP. Of the 434 total DCD lung transplants performed between January 2020 and March 2022, 17 were recovered using TA-NRP. Compared to direct recovery DCD transplants, recipients of TA-NRP DCD transplants had lower likelihood of ventilation >48 hours (23.5% vs 51.3%, p = 0.027) and similar likelihood of predischarge acute rejection, requirement for extracorporeal membrane oxygenation at 72 hours, hospital lengths of stay, and survival at 30, 60, and 90 days post-transplant. These early data suggest that DCD lung recovery using TA-NRP might be a safe way to further expand the donor pool and warrant further study.
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Affiliation(s)
- Alice L Zhou
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Jessica M Ruck
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Alfred J Casillan
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Emily L Larson
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Benjamin L Shou
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Alexander K Karius
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Jinny S Ha
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland
| | - Pali D Shah
- Pulmonary & Critical Care Medicine, Department of Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - Christian A Merlo
- Pulmonary & Critical Care Medicine, Department of Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - Errol L Bush
- Division of Thoracic Surgery, Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland.
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