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Punjala SR, Logan AJ, Brock GM, Kenawy DM, Chotai PN, Alebrahim M, Pawlik TM, Washburn WK, Schenk AD. Determinants of Long Waiting Time to Kidney Transplantation. Transplant Proc 2024:S0041-1345(24)00447-0. [PMID: 39214720 DOI: 10.1016/j.transproceed.2024.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 08/02/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND Disparity in waiting time to kidney transplantation led to new policy (KAS250). Our aims were to identify variables associated with long wait time (LWT); assess the impact of KAS250 on WT; and analyze modifiable transplant center behaviors correlated with WT. METHODS SRTR data for adult deceased donor kidney transplants were analyzed. Time-periods from 8/1/2018-7/31/2019 and 5/1/2021-4/30/2022 were chosen for pre- and post-KAS250 analyses. Transplant centers were categorized as LWT or SWT centers depending on whether pre-KAS250 median center waiting times were greater or less than the national pre-KAS250 median waiting time of 57.8 months. RESULTS In multivariate analysis, transplantation with HCV NAT negative kidneys was associated with an additional 21.3 months of WT (CI: 18.5-24.2, P < .0001), and transplantation with KDPI <85% kidneys was associated with an additional 10.8 months (CI: 8.2-13.3, P < .0001). Post-KAS250 national kidney transplant waiting time decreased from 61-58 months (P < .0001) and waiting time at LWT centers decreased from 74-69 months (P < .0001). Cold ischemic times (CIT) increased (20.2 hours vs 18.3 hours, P < .0001) and DGF rates also increased (32.7% vs 31.0%, P < .0001). Centers generally displayed more aggressive transplantation practices post-KAS250 however significant differences in DCD utilization, organ offer acceptance ratios and tolerance for long CIT persist between SWT and LWT centers. CONCLUSION KAS250 has reduced waiting time disparities between SWT and LWT centers at the cost of increased CIT and DGF and reduced allocation efficiency. Significant differences in transplant practice persist between SWT and LWT centers.
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Affiliation(s)
- Sai Rithin Punjala
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio.
| | - April J Logan
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Guy M Brock
- Department of Biomedical Informatics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Dahlia M Kenawy
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Pranit N Chotai
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Musab Alebrahim
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Timothy M Pawlik
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - William K Washburn
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Austin D Schenk
- Department of Surgery, Division of Transplantation, The Ohio State University Wexner Medical Center, Columbus, Ohio
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Kong W, Wang M, Niu N, Zhang G, Wang T, Liu J, Tang Y. Role of Doppler Trasonography in Predicting Recovery From Early Allograft Dysfunction in Liver Postoperative Patients. Transplant Proc 2024:S0041-1345(24)00417-2. [PMID: 39198069 DOI: 10.1016/j.transproceed.2024.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/05/2024] [Accepted: 08/06/2024] [Indexed: 09/01/2024]
Abstract
OBJECTIVE The aim of this study was to observe the recovery of liver function in patients with early allograft dysfunction (EAD) at one month postoperatively and explore whether early postoperative ultrasonic hemodynamic parameters can predict this outcome. METHODS Patients with EAD postoperatively, who underwent orthotopic liver transplantation (OLT) in our hospital from December 2012 to June 2021, were retrospectively collected. Based on the recovery of liver function within one month, patients were divided into two groups: the recovery group (FR-1M) and the non-recovery group (Non-FR-1M). Ultrasonic hemodynamic parameters within the first seven days postoperatively were compared between the two groups. RESULTS Among the 254 EAD patients included in this study, 158 (62%) patients recovered their liver function within one month. Of the 96 (38%) patients who did not recover, The RI of the non-FR-1M group was significantly lower than that of the FR-1M group on postoperative day 6 (POD6) and POD7. In the high resistance interval (RI all > 0.7), Group FR-1M represents a significant proportion (29/3, ratio 12/1), while in the low resistance interval (RI < 0.5 at least once), Group non-FR-1M accounts for a relatively high proportion (12/27, ratio 5/11). In the middle resistance interval (more than 1 time ≤ 0.7 and all ≥ 0.5), the proportions of the two groups are balanced (85/88, ratio 1/1). CONCLUSION Liver function typically recovers within 1 month in most patients with EAD. The high resistance state of the hepatic artery in the early postoperative period is illustrative an important role in its recovery. Low-resistance state is most unfavorable for the recovery of liver function.
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Affiliation(s)
- Weina Kong
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China
| | - Mingyang Wang
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China
| | - Ningning Niu
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China
| | - Guoying Zhang
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China
| | - Tianchi Wang
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China
| | - Jing Liu
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China
| | - Ying Tang
- Department of Ultrasound, Tianjin First Central Hospital, Tianjin, China.
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Ahmed O, Doyle MBM, Abouljoud MS, Alonso D, Batra R, Brayman KL, Brockmeier D, Cannon RM, Chavin K, Delman AM, DuBay DA, Finn J, Fridell JA, Friedman BS, Fritze DM, Ginos D, Goldberg DS, Halff GA, Karp SJ, Kohli VK, Kumer SC, Langnas A, Locke JE, Maluf D, Meier RPH, Mejia A, Merani S, Mulligan DC, Nibuhanupudy B, Patel MS, Pelletier SJ, Shah SA, Vagefi PA, Vianna R, Zibari GB, Shafer TJ, Orloff SL. Liver Transplant Costs and Activity After United Network for Organ Sharing Allocation Policy Changes. JAMA Surg 2024; 159:939-947. [PMID: 38809546 PMCID: PMC11137658 DOI: 10.1001/jamasurg.2024.1208] [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: 10/01/2023] [Accepted: 02/11/2024] [Indexed: 05/30/2024]
Abstract
Importance A new liver allocation policy was implemented by United Network for Organ Sharing (UNOS) in February 2020 with the stated intent of improving access to liver transplant (LT). There are growing concerns nationally regarding the implications this new system may have on LT costs, as well as access to a chance for LT, which have not been captured at a multicenter level. Objective To characterize LT volume and cost changes across the US and within specific center groups and demographics after the policy implementation. Design, Setting, and Participants This cross-sectional study collected and reviewed LT volume from multiple centers across the US and cost data with attention to 8 specific center demographics. Two separate 12-month eras were compared, before and after the new UNOS allocation policy: March 4, 2019, to March 4, 2020, and March 5, 2020, to March 5, 2021. Data analysis was performed from May to December 2022. Main Outcomes and Measures Center volume, changes in cost. Results A total of 22 of 68 centers responded comparing 1948 LTs before the policy change and 1837 LTs postpolicy, resulting in a 6% volume decrease. Transplants using local donations after brain death decreased 54% (P < .001) while imported donations after brain death increased 133% (P = .003). Imported fly-outs and dry runs increased 163% (median, 19; range, 1-75, vs 50, range, 2-91; P = .009) and 33% (median, 3; range, 0-16, vs 7, range, 0-24; P = .02). Overall hospital costs increased 10.9% to a total of $46 360 176 (P = .94) for participating centers. There was a 77% fly-out cost increase postpolicy ($10 600 234; P = .03). On subanalysis, centers with decreased LT volume postpolicy observed higher overall hospital costs ($41 720 365; P = .048), and specifically, a 122% cost increase for liver imports ($6 508 480; P = .002). Transplant centers from low-income states showed a significant increase in hospital (12%) and import (94%) costs. Centers serving populations with larger proportions of racial and ethnic minority candidates and specifically Black candidates significantly increased costs by more than 90% for imported livers, fly-outs, and dry runs despite lower LT volume. Similarly, costs increased significantly (>100%) for fly-outs and dry runs in centers from worse-performing health systems. Conclusions and Relevance Based on this large multicenter effort and contrary to current assumptions, the new liver distribution system appears to place a disproportionate burden on populations of the current LT community who already experience disparities in health care. The continuous allocation policies being promoted by UNOS could make the situation even worse.
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Affiliation(s)
- Ola Ahmed
- Division of Abdominal Organ Transplantation, Department of Surgery, Washington University School of Medicine, St Louis, Missouri
| | - Maria Bernadette Majella Doyle
- Division of Abdominal Organ Transplantation, Department of Surgery, Washington University School of Medicine, St Louis, Missouri
| | - Marwan S. Abouljoud
- Transplant Institute and Hepatobiliary Surgery, Henry Ford Hospital Detroit, Detroit, Michigan
| | - Diane Alonso
- Intermountain Medical Center, Salt Lake City, Utah
| | - Ramesh Batra
- Yale New Haven Health Transplantation Center, New Haven, Connecticut
| | - Kenneth L. Brayman
- Division of Transplant Surgery, University of Virginia Health System, Charlottesville
| | | | - Robert M. Cannon
- Comprehensive Transplant Institute, University of Alabama, Tuscaloosa
| | - Kenneth Chavin
- Temple University Health System, Philadelphia, Pennsylvania
| | - Aaron M. Delman
- Department of Surgery, University Cincinnati Medical Center, Cincinnati, Ohio
| | - Derek A. DuBay
- Department of Transplant Surgery, Medical University of South Carolina, Charleston
| | - Jan Finn
- Midwest Transplant Network, Westwood, Kansas
| | - Jonathan A. Fridell
- Department of Abdominal Transplant Surgery, Indiana University Health Transplant Institute, Indianapolis
| | | | - Danielle M. Fritze
- Department of Transplant Surgery, University of Texas Health Science Center at San Antonio
| | - Derek Ginos
- Intermountain Medical Center, Salt Lake City, Utah
| | - David S. Goldberg
- Division of Digestive Health and Liver Diseases, University of Miami Miller School of Medicine, Miami, Florida
| | - Glenn A. Halff
- University of Texas Health Science Center at San Antonio
| | - Seth J. Karp
- Section of Surgical Sciences, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Vivek K. Kohli
- Department of Transplant and Hepatobiliary Surgery, Integris Baptist Medical Center, Oklahoma City, Oklahoma
| | - Sean C. Kumer
- Division of Transplantation and Hepatobiliary Surgery, University of Kansas Health System, Kansas City
| | - Alan Langnas
- Division of Transplant Surgery, University of Nebraska Medical Center, Lincoln
| | - Jayme E. Locke
- Comprehensive Transplant Institute, University of Alabama, Tuscaloosa
| | - Daniel Maluf
- Division of Transplantation and Hepatobiliary Surgery, University of Maryland, Baltimore
| | - Raphael P. H. Meier
- Division of Transplantation and Hepatobiliary Surgery, University of Maryland, Baltimore
| | | | - Shaheed Merani
- Division of Transplant Surgery, University of Nebraska Medical Center, Lincoln
| | - David C. Mulligan
- Yale New Haven Health Transplantation Center, New Haven, Connecticut
| | | | - Madhukar S. Patel
- Division of Surgical Transplantation, University of Texas Southwestern Medical Center/William P. Clements Jr. University Hospital, Dallas
| | - Shawn J. Pelletier
- Division of Transplant Surgery, University of Virginia Health System, Charlottesville
| | - Shimul A. Shah
- Department of Surgery, University Cincinnati Medical Center, Cincinnati, Ohio
| | - Parsia A. Vagefi
- Division of Surgical Transplantation, University of Texas Southwestern Medical Center/William P. Clements Jr. University Hospital, Dallas
| | - Rodrigo Vianna
- University of Miami Transplant Institute, Miami, Florida
| | - Gazi B. Zibari
- Willis Knighton Advanced Surgery Center, Willis-Knighton Health System, Shreveport, Louisiana
| | | | - Susan L. Orloff
- Division of Abdominal Organ Transplantation/Hepatobiliary Surgery, Oregon Health & Science University, Portland
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Miyake K, Kim DY, Chau LC, Trudeau S, Kitajima T, Wickramaratne N, Shimada S, Nassar A, Yoshida A, Abouljoud MS, Nagai S. Exception Policy Change Increased the Simultaneous Kidney-Liver Transplant Probability of Polycystic Disease in the Centers With High Median MELD at Transplantation. Transplantation 2024; 108:1632-1640. [PMID: 38548699 DOI: 10.1097/tp.0000000000004950] [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: 06/27/2024]
Abstract
BACKGROUND In 2019, Organ Procurement and Transplantation Network/United Network for Organ Sharing changed the exception policy for liver allocation to the median model for end-stage liver disease at transplantation (MMaT). This study evaluated the effects of this change on-waitlist outcomes of simultaneous liver-kidney transplantation (SLKT) for patients with polycystic liver-kidney disease (PLKD). METHODS Using the Organ Procurement and Transplantation Network/United Network for Organ Sharing registry, 317 patients with PLKD listed for SLKT between January 2016 and December 2021 were evaluated. Waitlist outcomes were compared between prepolicy (Era 1) and postpolicy (Era 2) eras. RESULTS One-year transplant probability was significantly higher in Era 2 than in Era 1 (55.7% versus 37.9%; P = 0.001), and the positive effect on transplant probability of Era 2 was significant after risk adjustment (adjusted hazard ratio, 1.76; 95% confidence interval, 1.22-2.54; P = 0.002 [ref. Era 1]), whereas waitlist mortality was comparable. Transplant centers were separated into the high and low MMaT groups with a score of 29 (median MMaT) and transplant probability in each group between eras was compared. In the high MMaT transplant centers, the 1-y transplant probability was significantly higher in Era 2 (27.5% versus 52.4%; P = 0.003). The positive effect remained significant in the high MMaT center group (adjusted hazard ratio, 2.79; 95% confidence interval, 1.43-5.46; P = 0.003 [ref. Era 1]) but not in the low MMaT center group. Although there was a difference between center groups in Era 1 ( P = 0.006), it became comparable in Era 2 ( P = 0.54). CONCLUSIONS The new policy increased 1-y SLKT probability in patients with PKLD and successfully reduced the disparities based on center location.
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Affiliation(s)
- Katsunori Miyake
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Dean Y Kim
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Lucy C Chau
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Sheri Trudeau
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI
| | - Toshihiro Kitajima
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Niluka Wickramaratne
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Shingo Shimada
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Ahmed Nassar
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Atsushi Yoshida
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Marwan S Abouljoud
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
| | - Shunji Nagai
- Division of Transplant and Hepatobiliary Surgery, Henry Ford Health, Detroit, MI
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5
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Laporte CCM, Brown B, Wilke TJ, Kassel CA. 2023 Clinical Update in Liver Transplantation. J Cardiothorac Vasc Anesth 2024; 38:1390-1396. [PMID: 38490899 DOI: 10.1053/j.jvca.2024.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 03/17/2024]
Abstract
Liver transplantation continues to provide life-saving treatment for patients with end-stage liver disease. Advances in the field of transplant anesthesia continue to support the care of more complex patients. The use of extracorporeal membrane oxygenation has been described in critical care settings and cardiac surgery but may be a valuable option for specific conditions for patients undergoing liver transplantation. Changes to the allocation process for liver grafts now focus on acuity circles to reduce regional disparities. As the number of life-saving transplant surgeries increases, so does the need for specialty knowledge in the anesthetic considerations of these procedures. The specialty of transplant anesthesia continues to grow and develop to meet the demands of complex patients and the increased number of transplants performed. Liver transplantation can be a resource-demanding procedure, and predicting the need for massive transfusion can aid in planning and preparing for significant blood loss.
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Affiliation(s)
| | - Brittany Brown
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE
| | - Trevor J Wilke
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE
| | - Cale A Kassel
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE.
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6
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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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Paneitz DC, Wolfe SB, Giao D, Tessier SN, Dageforde LA, Elias N, Rabi SA, Michel E, D’Alessandro DA, Osho AA. The Public Health Service "Increased Risk" 2020 Policy Change Has not Improved Organ Utilization in the United States: A Nationwide Cohort Study. ANNALS OF SURGERY OPEN 2024; 5:e368. [PMID: 38883934 PMCID: PMC11175935 DOI: 10.1097/as9.0000000000000368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 11/20/2023] [Indexed: 06/18/2024] Open
Abstract
Objective To assess the effects of the 2020 United States Public Health Service (PHS) "Increased Risk" Guidelines update. Background Donors labeled as "Increased Risk" for transmission of infectious diseases have been found to have decreased organ utilization rates despite no significant impact on recipient survival. Recently, the PHS provided an updated guideline focused on "Increased Risk" organ donors, which included the removal of the "Increased Risk" label and the elimination of the separate informed consent form, although the actual increased risk status of donors is still ultimately transmitted to transplant physicians. We sought to analyze the effect of this update on organ utilization rates. Methods This was a retrospective analysis of the Organ Procurement and Transplantation Network database which compared donor organ utilization in the 2 years before the June 2020 PHS Guideline update for increased-risk donor organs (June 2018-May 2020) versus the 2 years after the update (August 2020-July 2022). The organ utilization rate for each donor was determined by dividing the number of organs transplanted by the total number of organs available for procurement. Student t test and multivariable logistic regression models were used for analysis. Results There were 17,272 donors in the preupdate cohort and 17,922 donors in the postupdate cohort; of these, 4,977 (28.8%) and 3,893 (21.7%) donors were considered "Increased Risk", respectively. There was a 2% decrease in overall organ utilization rates after the update, driven by a 3% decrease in liver utilization rates and a 2% decrease in lung utilization rates. After multivariable adjustment, donors in the postupdate cohort had 10% decreased odds of having all organs transplanted. Conclusions The 2020 PHS "Increased Risk" Donor Guideline update was not associated with an increase in organ utilization rates in the first 2 years after its implementation, despite a decrease in the proportion of donors considered to be at higher risk. Further efforts to educate the community on the safe usage of high-risk organs are needed and may increase organ utilization.
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Affiliation(s)
- Dane C. Paneitz
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Stanley B. Wolfe
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Duc Giao
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Shannon N. Tessier
- Department of Surgery, Center for Engineering in Medicine & Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Leigh Anne Dageforde
- Division of Abdominal Transplantation, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Nahel Elias
- Division of Abdominal Transplantation, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Seyed Alireza Rabi
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Eriberto Michel
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - David A. D’Alessandro
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Asishana A. Osho
- From the Department of Surgery, Division of Cardiac Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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8
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Bekki Y, Myers B, Tomiyama K, Imaoka Y, Akabane M, Kwong AJ, Melcher ML, Sasaki K. Decreased Utilization Rate of Grafts for Liver Transplantation After Implementation of Acuity Circle-based Allocation. Transplantation 2024; 108:498-505. [PMID: 37585345 DOI: 10.1097/tp.0000000000004751] [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: 08/18/2023]
Abstract
BACKGROUND The allocation system for livers began using acuity circles (AC) in 2020. In this study, we sought to evaluate the impact of AC policy on the utilization rate for liver transplantation (LT). METHODS Using the US national registry data between 2018 and 2022, LTs were equally divided into 2 eras: pre-AC (before February 4, 2020) and post-AC (February 4, 2020, and after). Deceased potential liver donors were defined as deceased donors from whom at least 1 organ was procured. RESULTS The annual number of deceased potential liver donors increased post-AC (from 10 423 to 12 259), approaching equal to that of new waitlist registrations for LT (n = 12 801). Although the discard risk index of liver grafts was comparable between the pre- and post-AC eras, liver utilization rates in donation after brain death (DBD) and donation after circulatory death (DCD) donors were lower post-AC ( P < 0.01; 79.8% versus 83.4% and 23.7% versus 26.0%, respectively). Recipient factors, ie, no recipient located, recipient determined unsuitable, or time constraints, were more likely to be reasons for nonutilization after implementation of the AC allocation system compared to the pre-AC era (20.0% versus 12.3% for DBD donors and 50.1% versus 40.8% for DCD donors). Among non-high-volume centers, centers with lower utilization of marginal DBD donors or DCD donors were more likely to decrease LT volume post-AC. CONCLUSIONS Although the number of deceased potential liver donors has increased, overall liver utilization among deceased donors has decreased in the post-AC era. To maximize the donor pool for LT, future efforts should target specific reasons for liver nonutilization.
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Affiliation(s)
- Yuki Bekki
- Recanati-Miller Transplantation Institute, Icahn School of Medicine at Mount Sinai, New York City, NY
| | - Bryan Myers
- Recanati-Miller Transplantation Institute, Icahn School of Medicine at Mount Sinai, New York City, NY
| | - Koji Tomiyama
- Division of Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, NY
| | - Yuki Imaoka
- Division of Abdominal Transplant, Department of Surgery, Stanford University, Palo Alto, CA
| | - Miho Akabane
- Division of Abdominal Transplant, Department of Surgery, Stanford University, Palo Alto, CA
| | - Allison J Kwong
- Division of Gastroenterology and Hepatology, Stanford University, Palo Alto, CA
| | - Marc L Melcher
- Division of Abdominal Transplant, Department of Surgery, Stanford University, Palo Alto, CA
| | - Kazunari Sasaki
- Division of Abdominal Transplant, Department of Surgery, Stanford University, Palo Alto, CA
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9
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Akabane M, Bekki Y, Imaoka Y, Inaba Y, Kwong AJ, Esquivel CO, Melcher ML, Sasaki K. The short and long-term prognostic influences of liver grafts with high bilirubin levels at the time of organ recovery. Clin Transplant 2024; 38:e15155. [PMID: 37812571 DOI: 10.1111/ctr.15155] [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: 08/25/2023] [Accepted: 09/17/2023] [Indexed: 10/11/2023]
Abstract
BACKGROUND Donors with hyperbilirubinemia are often not utilized for liver transplantation (LT) due to concerns about potential liver dysfunction and graft survival. The potential to mitigate organ shortages using such donors remains unclear. METHODS This study analyzed adult deceased donor data from the United Network for Organ Sharing database (2002-2022). Hyperbilirubinemia was categorized as high total bilirubin (3.0-5.0 mg/dL) and very high bilirubin (≥5.0 mg/dL) in brain-dead donors. We assessed the impact of donor hyperbilirubinemia on 3-month and 3-year graft survival, comparing these outcomes to donors after circulatory death (DCD). RESULTS Of 138 622 donors, 3452 (2.5%) had high bilirubin and 1999 (1.4%) had very high bilirubin levels. Utilization rates for normal, high, and very high bilirubin groups were 73.5%, 56.4%, and 29.2%, respectively. No significant differences were found in 3-month and 3-year graft survival between groups. Donors with high bilirubin had superior 3-year graft survival compared to DCD (hazard ratio .83, p = .02). Factors associated with inferior short-term graft survival included recipient medical condition in intensive care unit (ICU) and longer cold ischemic time; factors associated with inferior long-term graft survival included older donor age, recipient medical condition in ICU, older recipient age, and longer cold ischemic time. Donors with ≥10% macrosteatosis in the very high bilirubin group were also associated with worse 3-year graft survival (p = .04). DISCUSSION The study suggests that despite many grafts with hyperbilirubinemia being non-utilized, acceptable post-LT outcomes can be achieved using donors with hyperbilirubinemia. Careful selection may increase utilization and expand the donor pool without negatively affecting graft outcome.
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Affiliation(s)
- Miho Akabane
- Division of Abdominal Transplant, Department of Surgery, Stanford University Medical Center, Stanford, California, USA
| | - Yuki Bekki
- Department of Surgery, Fukuoka City Hospital, Fukuoka, Japan
| | - Yuki Imaoka
- Division of Abdominal Transplant, Department of Surgery, Stanford University Medical Center, Stanford, California, USA
| | - Yosuke Inaba
- Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Allison J Kwong
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Stanford, California, USA
| | - Carlos O Esquivel
- Division of Abdominal Transplant, Department of Surgery, Stanford University Medical Center, Stanford, California, USA
| | - Marc L Melcher
- Division of Abdominal Transplant, Department of Surgery, Stanford University Medical Center, Stanford, California, USA
| | - Kazunari Sasaki
- Division of Abdominal Transplant, Department of Surgery, Stanford University Medical Center, Stanford, California, USA
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10
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Mazur RD, Cron DC, Chang DC, Yeh H, Dageforde LAD. Impact of Median MELD at Transplant Minus 3 National Policy on Quality of Transplanted Livers for Patients With and Without Hepatocellular Carcinoma. Transplantation 2024; 108:204-214. [PMID: 37189232 PMCID: PMC10651798 DOI: 10.1097/tp.0000000000004621] [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: 05/17/2023]
Abstract
BACKGROUND Patients with hepatocellular carcinoma (HCC) have been overprioritized in the deceased donor liver allocation system. The United Network for Organ Sharing adopted a policy in May 2019 that limited HCC exception points to the median Model for End-Stage Liver Disease at transplant in the listing region minus 3. We hypothesized this policy change would increase the likelihood to transplant marginal quality livers into HCC patients. METHODS This was a retrospective cohort study of a national transplant registry, including adult deceased donor liver transplant recipients with and without HCC from May 18, 2017, to May 18, 2019 (prepolicy) to May 19, 2019, to March 1, 2021 (postpolicy). Transplanted livers were considered of marginal quality if they met ≥1 of the following: (1) donation after circulatory death, (2) donor age ≥70, (3) macrosteatosis ≥30% and (4) donor risk index ≥95th percentile. We compared characteristics across policy periods and by HCC status. RESULTS A total of 23 164 patients were included (11 339 prepolicy and 11 825 postpolicy), 22.7% of whom received HCC exception points (prepolicy versus postpolicy: 26.1% versus 19.4%; P = 0.03). The percentage of transplanted donor livers meeting marginal quality criteria decreased for non-HCC (17.3% versus 16.0%; P < 0.001) but increased for HCC (17.7% versus 19.4%; P < 0.001) prepolicy versus postpolicy. After adjusting for recipient characteristics, HCC recipients had 28% higher odds of being transplanted with marginal quality liver independent of policy period (odds ratio: 1.28; confidence interval, 1.09-1.50; P < 0.01). CONCLUSIONS The median Model for End-Stage Liver Disease at transplant in the listing region minus 3 policy limited exception points and decreased the quality of livers received by HCC patients.
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Affiliation(s)
| | - David C Cron
- Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - David C Chang
- Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - Heidi Yeh
- Division of Transplantation, Department of Surgery, Massachusetts General Hospital, Boston, MA
| | - Leigh Anne D Dageforde
- Division of Transplantation, Department of Surgery, Massachusetts General Hospital, Boston, MA
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11
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Ahearn A. The history of ethical principles in liver transplant organ allocation in the United States: how historical and proposed allocations system fare in balancing utility vs. urgency and justice vs. pragmatism. Curr Opin Organ Transplant 2023; 28:452-456. [PMID: 37767963 DOI: 10.1097/mot.0000000000001103] [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: 09/29/2023]
Abstract
PURPOSE OF REVIEW The United States (US) liver transplant community is processing changes to the allocation system and developing a new proposal that will result in even greater change. This review evaluates the ethical implications of these decisions, focusing on two sets of competing ethical principles (Urgency vs. Utility and Justice vs. Pragmatism). RECENT FINDINGS About four years ago, the Organ Procurement and Transplantation Network (OPTN) implemented the Acuity Circle Model to replace the geographic boundaries of organ procurement organizations (OPOs). Here, we review how effectively this model reduced regional variation in access and improved waitlist survival. Likewise, the OPTN is planning to transition to a continuous distribution model which will redefine the scoring systems for allocation. We will discuss how the ethical priorities discussed above should be considered while developing the new system. SUMMARY Every change in organ allocation policy must balance competing ethical imperatives. Although our community's emphasis on urgency over utility is appropriate, we should study the potential benefits of considering utility in the system. Meanwhile, our push for more Justice in the system should remain our imperative and Pragmatism should only be considered to minimize the costs of these changes.
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Affiliation(s)
- Aaron Ahearn
- Department of Surgery, Keck Medical Center of USC, Los Angeles, California, USA
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12
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Cullinan DR, Ahmed O, Scalea JR, Chapman WC. An Evolution of Organ Allocation: Principles, Processes, and Innovations (Con). Transplantation 2023; 107:2302-2310. [PMID: 37644653 DOI: 10.1097/tp.0000000000004513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Affiliation(s)
- Darren R Cullinan
- Department of Surgery, Division of Abdominal Transplantation, Washington University School of Medicine, St. Louis, MO
| | - Ola Ahmed
- Department of Surgery, Division of Abdominal Transplantation, Washington University School of Medicine, St. Louis, MO
| | - Joseph R Scalea
- Department of Surgery, Division of Transplantation, Medical University of South Carolina, SC
| | - William C Chapman
- Department of Surgery, Division of Abdominal Transplantation, Washington University School of Medicine, St. Louis, MO
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13
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Godoy-Brewer GM, Chyou D, Goldberg DS. Impact of acuity circles on racial and ethnic disparities in liver transplantation. Liver Transpl 2023; 29:1134-1137. [PMID: 37013920 DOI: 10.1097/lvt.0000000000000141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/20/2023] [Indexed: 04/05/2023]
Affiliation(s)
| | - Darius Chyou
- Department of Internal Medicine, University of Miami, Miami, Florida, USA
| | - David S Goldberg
- University of Miami, Division of Digestive Health and Liver Diseases, Miami, Florida, USA
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14
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Egbert LK, Ohara SY, Das D, Brooks A, Mahdi G, Aqel B, Buckner Petty SA, Mathur AK, Moss A, Reddy KS, Jadlowiec CC. Expanding Liver Transplant Opportunities in Older Patients With Nonconventional Grafts. J Surg Res 2023; 288:140-147. [PMID: 36966594 DOI: 10.1016/j.jss.2023.01.017] [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: 09/28/2022] [Revised: 01/06/2023] [Accepted: 01/30/2023] [Indexed: 05/15/2023]
Abstract
INTRODUCTION Broader use of donation after circulatory death (DCD) and nonconventional grafts for liver transplant helps reduce disparities in organ availability. Limited data, however, exists on outcomes specific to nonconventional graft utilization in older patients. As such, this study aimed to investigate outcomes specific to conventional and nonconventional graft utilization in recipients > 70 y of age. METHODS 1-to-3 matching based on recipient sex, Model for End-Stage Liver Disease score, and donor type was performed on patients ≥70 and <70 y of age who underwent liver transplant alone at Mayo Clinic Arizona between 2015 and 2020. Primary outcomes were posttransplant patient and liver allograft survival for recipients greater than or less than 70 y of age. Secondary outcomes included grafts utilization patterns, hospital length of stay, need for reoperation, biliary complications and disposition at time of hospital discharge. RESULTS In this cohort, 36.1% of grafts came from DCD donors, 17.4% were postcross clamp offers, and 20.8% were nationally allocated. Median recipient ages were 59 and 71 y (P < 0.01). Recipients had similar Intensive care unit (P = 0.82) and hospital (P = 0.14) lengths of stay, and there were no differences in patient (P = 0.68) or graft (P = 0.38) survival. When comparing donation after brain death and DCD grafts in those >70 y, there were no differences in patient (P = 0.89) or graft (P = 0.71) survival. CONCLUSIONS Excellent outcomes can be achieved in older recipients, even with use of nonconventional grafts. Expanded use of nonconventional grafts can help facilitate transplant opportunities in older patients.
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Affiliation(s)
- Lena K Egbert
- Department of Surgery, Mayo Clinic, Phoenix, Arizona
| | - Stephanie Y Ohara
- Division of Surgery, Valleywise Health Medical Center, Creighton University, Phoenix, Arizona
| | - Devika Das
- Division of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Abigail Brooks
- Division of Surgery, Montefiore Medical Center, New York City, New York
| | - Giyth Mahdi
- Mayo Clinic Alix School of Medicine, Scottsdale, Arizona
| | - Bashar Aqel
- Division of Gastroenterology and Hepatology, Mayo Clinic, Phoenix, Arizona
| | | | - Amit K Mathur
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, Arizona
| | - Adyr Moss
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, Arizona
| | - Kunam S Reddy
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, Arizona
| | - Caroline C Jadlowiec
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, Arizona.
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15
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Ivanics T, Claasen MPAW, Patel MS, Giorgakis E, Khorsandi SE, Srinivasan P, Prachalias A, Menon K, Jassem W, Cortes M, Sayed BA, Mathur AK, Walker K, Taylor R, Heaton N, Mehta N, Segev DL, Massie AB, van der Meulen JHP, Sapisochin G, Wallace D. Outcomes after liver transplantation using deceased after circulatory death donors: A comparison of outcomes in the UK and the US. Liver Int 2023; 43:1107-1119. [PMID: 36737866 DOI: 10.1111/liv.15537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 01/08/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS Identifying international differences in utilization and outcomes of liver transplantation (LT) after donation after circulatory death (DCD) donation provides a unique opportunity for benchmarking and population-level insight. METHODS Adult (≥18 years) LT data between 2008 and 2018 from the UK and US were used to assess mortality and graft failure after DCD LT. We used time-dependent Cox-regression methods to estimate hazard ratios (HR) for risk-adjusted short-term (0-90 days) and longer-term (90 days-5 years) outcomes. RESULTS One-thousand five-hundred-and-sixty LT receipts from the UK and 3426 from the US were included. Over the study period, the use of DCD livers increased from 15.7% to 23.9% in the UK compared to 5.1% to 7.6% in the US. In the UK, DCD donors were older (UK:51 vs. US:33 years) with longer cold ischaemia time (UK: 437 vs. US: 333 min). Recipients in the US had higher Model for End-stage Liver Disease (MELD) scores, higher body mass index, higher proportions of ascites, encephalopathy, diabetes and previous abdominal surgeries. No difference in the risk-adjusted short-term mortality or graft failure was observed between the countries. In the longer-term (90 days-5 years), the UK had lower mortality and graft failure (adj.mortality HR:UK: 0.63 (95% CI: 0.49-0.80); graft failure HR: UK: 0.72, 95% CI: 0.58-0.91). The cumulative incidence of retransplantation was higher in the UK (5 years: UK: 11.9% vs. 4.6%; p < .001). CONCLUSIONS For those receiving a DCD LT, longer-term post-transplant outcomes in the UK are superior to the US, however, significant differences in recipient illness, graft quality and access to retransplantation were seen between the two countries.
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Affiliation(s)
- Tommy Ivanics
- Multi-Organ Transplant Program, University Health Network, University of Toronto.,Department of Surgery, Henry Ford Hospital, Detroit, Michigan, USA.,Department of Surgical Sciences, Akademiska Sjukhuset, Uppsala University, Uppsala, Sweden
| | - Marco P A W Claasen
- Multi-Organ Transplant Program, University Health Network, University of Toronto.,Department of Surgery, Division of HPB & Transplant Surgery, Erasmus MC Transplant Institute, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Madhukar S Patel
- Division of Surgical Transplantation, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Emmanouil Giorgakis
- Division of Transplantation, Department of Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.,Hepatopancreatobiliary Surgery, Department of Surgical Oncology, Rockefeller Cancer Center Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.,Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Shirin E Khorsandi
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK.,The Roger Williams Institute of Hepatology, Foundation for Liver Research, London, UK.,Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Parthi Srinivasan
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Andreas Prachalias
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Krishna Menon
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Wayel Jassem
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Miriam Cortes
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Blayne A Sayed
- Multi-Organ Transplant Program, University Health Network, University of Toronto
| | - Amit K Mathur
- Division of Transplantation, Department of Surgery, Mayo Clinic, Phoenix, Arizona, USA
| | - Kate Walker
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Rhiannon Taylor
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK.,Department of Statistics, National Health Service Blood and Transplant, Bristol, UK
| | - Nigel Heaton
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK
| | - Neil Mehta
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, California, USA
| | - Dorry L Segev
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.,Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, New York, USA
| | - Allan B Massie
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.,Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Surgery, NYU Grossman School of Medicine and NYU Langone Health, New York, New York, USA
| | - Jan H P van der Meulen
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Gonzalo Sapisochin
- Multi-Organ Transplant Program, University Health Network, University of Toronto
| | - David Wallace
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK.,Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK
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16
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Ohara S, Macdonough E, Egbert L, Brooks A, Lizaola-Mayo B, Mathur AK, Aqel B, Reddy KS, Jadlowiec CC. Decreasing Significance of Early Allograft Dysfunction with Rising Use of Nonconventional Donors. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58060821. [PMID: 35744084 PMCID: PMC9227373 DOI: 10.3390/medicina58060821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/07/2022] [Accepted: 06/13/2022] [Indexed: 11/27/2022]
Abstract
Background and Objectives: Early allograft dysfunction (EAD) is considered a surrogate marker for adverse post-liver transplant (LT) outcomes. With the increasing use of nonconventional donors, EAD has become a more frequent occurrence. Given this background, we aimed to assess the prevalence and impact of EAD in an updated cohort inclusive of both conventional and nonconventional liver allografts. Materials and Methods: Perioperative and one-year outcomes were assessed for a total of 611 LT recipients with and without EAD from Mayo Clinic Arizona. EAD was defined as the presence of one or more of the following: bilirubin > 10 mg/dL on day 7, INR > 1.6 on day 7, or ALT and/or AST > 2000 IU/L within the first 7 days of LT. Results: Within this cohort, 31.8% of grafts (n = 194) came from donation after circulatory death (DCD) donors, 17.7% (n = 108) were nationally shared, 16.4% (n = 100) were allocated as post-cross clamp, and 8.7% contained moderate steatosis. EAD was observed in 52.2% (n = 321) of grafts in the study cohort (79% in DCD grafts and 40% in DBD grafts). EAD grafts had higher donor risk index (DRI) scores (1.9 vs. 1.6, p < 0.0001), were more likely to come from DCD donors (48% vs. 13.8%, p < 0.0001), were regionally allocated (p = 0.003), and had higher cold ischemia times (median 6.0 vs. 5.5 h, p = 0.001). Primary nonfunction events were rare in both groups (1.3% vs. 0.3%, p = 0.22). Post-LT acute kidney injury occurred at a similar frequency in recipients with and without EAD (43.6% vs. 30.3%, p = 0.41), and there were no differences in ICU (median 2 vs. 1 day, p = 0.60) or hospital (6 vs. 5 days, p = 0.24) length of stay. For DCD grafts, the rate of ischemic cholangiopathy was similar in the two groups (14.9% EAD vs. 17.5% no EAD, p = 0.69). One-year patient survival for grafts with and without EAD was 96.0% and 94.1% (HR 1.2, 95% CI 0.7−1.8; p = 0.54); one-year graft survival was 92.5% and 92.1% (HR 1.0, 95% CI 0.7−1.5; p = 0.88). Conclusions: In this cohort, EAD occurred in 52% of grafts. The occurrence of EAD, however, did not portend inferior outcomes. Compared to those without EAD, recipients with EAD had similar post-operative outcomes, as well as one-year patient and graft survival. EAD should be managed supportively and should not be viewed as a deterrent to utilization of non-ideal grafts.
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Affiliation(s)
- Stephanie Ohara
- Division of Surgery, Valleywise Health Medical Center, Creighton University, Phoenix, AZ 85008, USA;
| | - Elizabeth Macdonough
- Division of Gastroenterology and Hepatology, Mayo Clinic, Phoenix, AZ 85054, USA; (E.M.); (B.L.-M.); (B.A.)
| | - Lena Egbert
- Mayo Clinic Alix School of Medicine, Scottsdale, AZ 85259, USA;
| | - Abigail Brooks
- School of Medicine, Tel Aviv University, Tel Aviv-Yafo 6997801, Israel;
| | - Blanca Lizaola-Mayo
- Division of Gastroenterology and Hepatology, Mayo Clinic, Phoenix, AZ 85054, USA; (E.M.); (B.L.-M.); (B.A.)
| | - Amit K. Mathur
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA; (A.K.M.); (K.S.R.)
| | - Bashar Aqel
- Division of Gastroenterology and Hepatology, Mayo Clinic, Phoenix, AZ 85054, USA; (E.M.); (B.L.-M.); (B.A.)
| | - Kunam S. Reddy
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA; (A.K.M.); (K.S.R.)
| | - Caroline C. Jadlowiec
- Division of Transplant Surgery, Department of Surgery, Mayo Clinic, Phoenix, AZ 85054, USA; (A.K.M.); (K.S.R.)
- Correspondence: ; Tel.: +1-480-342-0437
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