1
|
Tang WHW, Bakitas MA, Cheng XS, Fang JC, Fedson SE, Fiedler AG, Martens P, McCallum WI, Ogunniyi MO, Rangaswami J, Bansal N. Evaluation and Management of Kidney Dysfunction in Advanced Heart Failure: A Scientific Statement From the American Heart Association. Circulation 2024; 150:e280-e295. [PMID: 39253806 DOI: 10.1161/cir.0000000000001273] [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] [Indexed: 09/11/2024]
Abstract
Early identification of kidney dysfunction in patients with advanced heart failure is crucial for timely interventions. In addition to elevations in serum creatinine, kidney dysfunction encompasses inadequate maintenance of sodium and volume homeostasis, retention of uremic solutes, and disrupted endocrine functions. Hemodynamic derangements and maladaptive neurohormonal upregulations contribute to fluctuations in kidney indices and electrolytes that may recover with guideline-directed medical therapy. Quantifying the extent of underlying irreversible intrinsic kidney disease is crucial in predicting whether optimization of congestion and guideline-directed medical therapy can stabilize kidney function. This scientific statement focuses on clinical management of patients experiencing kidney dysfunction through the trajectory of advanced heart failure, with specific focus on (1) the conceptual framework for appropriate evaluation of kidney dysfunction within the context of clinical trajectories in advanced heart failure, including in the consideration of advanced heart failure therapies; (2) preoperative, perioperative, and postoperative approaches to evaluation and management of kidney disease for advanced surgical therapies (durable left ventricular assist device/heart transplantation) and kidney replacement therapies; and (3) the key concepts in palliative care and decision-making processes unique to individuals with concomitant advanced heart failure and kidney disease.
Collapse
|
2
|
Shudo Y, He H, Elde S, Woo YJ. Revised Heart Allocation Policy Improved Waitlist Mortality and Waiting Time With Maintained Outcomes in En-Bloc Heart-Lung Transplant Candidates and Recipients. Transpl Int 2023; 36:11956. [PMID: 38152546 PMCID: PMC10751310 DOI: 10.3389/ti.2023.11956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/24/2023] [Indexed: 12/29/2023]
Abstract
The revised United Network for Organ Sharing heart allocation policy was implemented in October 2018. Using a national transplant database, this study evaluated the transplant rate, waitlist mortality, waiting time, and other outcomes of en-bloc heart-lung transplantation recipients. Adult patients registered on the national database for heart-lung transplants before and after the policy update were selected as cohorts. Baseline characteristics, transplant rates, waitlist mortality, waiting times, and other outcomes were compared between the two periods. In total, 370 patients were registered for heart-lung transplants during the pre- and post-periods. There were significantly higher transplant rates, shorter waitlist times, and substantially reduced waitlist mortality in the post-period. Registered patients waitlisted in the post-period had significantly higher utilization of intra-aortic balloon pumps, extracorporeal membrane oxygenation, and overall life support, including ventricular assist devices. Transplant recipients had significantly longer ischemic times, increased transport distances, and shorter waiting times before transplantation in the post-policy period. Transplant recipients held similar short-term survival before and after the policy change (log-rank test, p = 0.4357). Therefore, the revised policy significantly improved access to en-bloc heart-lung allografts compared with the prior policy, with better waitlist outcomes and similar post-transplant outcomes.
Collapse
|
4
|
Francke M, Wolfson AM, Fong MW, Nattiv J, Pandya K, Kawaguchi ES, Villalon S, Mroz M, Sertic A, Cochran A, Ackerman MA, Melendrez M, Cartus R, Johnston KA, Okonkwo K, Ferrall J, DePasquale EC, Lee R, Vaidya AS. New UNOS allocation system associated with no added benefit in waitlist outcomes and worse post-transplant survival in heart-kidney patients. J Heart Lung Transplant 2023; 42:1529-1542. [PMID: 37394021 DOI: 10.1016/j.healun.2023.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 05/19/2023] [Accepted: 06/23/2023] [Indexed: 07/04/2023] Open
Abstract
BACKGROUND The 2018 United Network for Organ Sharing (UNOS) heart transplant policy change (PC) sought to improve waitlist risk stratification to decrease waitlist mortality and promote geographically broader sharing for high-acuity patients awaiting heart transplantation. Our analysis sought to determine the effect of the UNOS PC on outcomes in patients waiting for, or who have received, a heart-kidney transplantation. METHODS We analyzed adult (≥18 years old), first-time, heart-only and heart-kidney transplant candidates and recipients from the UNOS Registry. Patients were divided into pre-PC (PRE: October 18, 2016-May 30, 2018) and post-PC (POST: October 18, 2018-May 30, 2020) groups for comparison. Competing risks analysis (subdistribution and cause-specific hazards analyses) was performed to assess for differences in waitlist death/deterioration or heart transplantation. One-year post-transplant survival was assessed with Kaplan-Meier and Cox analyses. We included an interaction term (policy era × heart ± kidney) in our analyses to evaluate the effect of PC on outcomes in heart-kidney patients. RESULTS One-year post-transplant survival was similar (p = 0.83) for PRE heart-kidney and heart-only recipients, but worse (p < 0.001) for POST heart-kidney vs heart-only recipients. There was a policy-era interaction between heart-kidney and heart-only recipients (HR 1.92[1.04,3.55], p = 0.038) indicating a detrimental effect of policy on 1-year survival in POST vs PRE heart-kidney recipients. No added beneficial effect of PC on waitlist outcomes in heart-kidney vs heart-only candidates was observed. CONCLUSIONS There was no added policy-era benefit on waitlist outcomes for heart-kidney candidates when compared to heart-only candidates. POST heart-kidney recipients experienced worse 1-year survival compared to PRE heart-kidney recipients with no policy effect on heart-only recipients.
Collapse
Affiliation(s)
- Michael Francke
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Aaron M Wolfson
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California.
| | - Michael W Fong
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Jonathan Nattiv
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Kruti Pandya
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Eric S Kawaguchi
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Sylvia Villalon
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Mark Mroz
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Ashley Sertic
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Ashley Cochran
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Mary Alice Ackerman
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Marie Melendrez
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Rachel Cartus
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Kori Ann Johnston
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Kamso Okonkwo
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Joel Ferrall
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Eugene C DePasquale
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| | - Raymond Lee
- Department of Cardiothoracic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California; USC CardioVascular Institute, Los Angeles, California
| | - Ajay S Vaidya
- Division of Cardiovascular Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California; Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, California
| |
Collapse
|
5
|
Maitra NS, Dugger SJ, Balachandran IC, Civitello AB, Khazanie P, Rogers JG. Impact of the 2018 UNOS Heart Transplant Policy Changes on Patient Outcomes. JACC. HEART FAILURE 2023; 11:491-503. [PMID: 36892486 DOI: 10.1016/j.jchf.2023.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 12/19/2022] [Accepted: 01/04/2023] [Indexed: 03/05/2023]
Abstract
In 2018, the United Network for Organ Sharing implemented a 6-tier allocation policy to replace the prior 3-tier system. Given increasing listings of critically ill candidates for heart transplantation and lengthening waitlist times, the new policy aimed to better stratify candidates by waitlist mortality, shorten waiting times for high priority candidates, add objective criteria for common cardiac conditions, and further broaden sharing of donor hearts. There have been significant shifts in cardiac transplantation practices and patient outcomes following the implementation of the new policy, including changes in listing practices, waitlist time and mortality, transplant donor characteristics, post-transplantation outcomes, and mechanical circulatory support use. This review aims to highlight emerging trends in United States heart transplantation practice and outcomes following the implementation of the 2018 United Network for Organ Sharing heart allocation policy and to address areas for future modification.
Collapse
Affiliation(s)
- Neil S Maitra
- Baylor College of Medicine, Department of Medicine, Houston, Texas, USA
| | - Samuel J Dugger
- Baylor College of Medicine, Department of Medicine, Houston, Texas, USA
| | - Isabel C Balachandran
- Baylor College of Medicine, Department of Medicine, Houston, Texas, USA; Texas Heart Institute, Houston, Texas, USA
| | - Andrew B Civitello
- Baylor College of Medicine, Department of Medicine, Houston, Texas, USA; Texas Heart Institute, Houston, Texas, USA
| | - Prateeti Khazanie
- Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Joseph G Rogers
- Baylor College of Medicine, Department of Medicine, Houston, Texas, USA; Texas Heart Institute, Houston, Texas, USA.
| |
Collapse
|
6
|
Cole RM, Emerson D, Kobashigawa JA. Commentary: Mechanical bridge over troubled waters. J Thorac Cardiovasc Surg 2023; 165:184-185. [PMID: 34274139 DOI: 10.1016/j.jtcvs.2021.06.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 06/23/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022]
Affiliation(s)
- Robert M Cole
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, Calif
| | - Dominic Emerson
- Department of Cardiothoracic Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, Calif
| | - Jon A Kobashigawa
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, Calif.
| |
Collapse
|
7
|
Williams KM, Woo YJ. A newer era of heart-lung transplantation? EUROPEAN JOURNAL OF CARDIO-THORACIC SURGERY : OFFICIAL JOURNAL OF THE EUROPEAN ASSOCIATION FOR CARDIO-THORACIC SURGERY 2022; 63:6988032. [PMID: 36645242 DOI: 10.1093/ejcts/ezad011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 01/17/2023]
Affiliation(s)
- Kiah M Williams
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Y Joseph Woo
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| |
Collapse
|
8
|
Westphal SG, Langewisch ED, Miles CD. Current State of Multiorgan Transplantation and Implications for Future Practice and Policy. Adv Chronic Kidney Dis 2021; 28:561-569. [PMID: 35367024 DOI: 10.1053/j.ackd.2021.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/17/2021] [Accepted: 09/28/2021] [Indexed: 12/07/2022]
Abstract
The incidence of kidney dysfunction has increased in liver transplant and heart transplant candidates, reflecting a changing patient population and allocation policies that prioritize the most urgent candidates. A higher burden of pretransplant kidney dysfunction has resulted in a substantial rise in the utilization of multiorgan transplantation (MOT). Owing to a shortage of available deceased donor kidneys, the increased use of MOT has the potential to disadvantage kidney-alone transplant candidates, as current allocation policies generally provide priority for MOT candidates above all kidney-alone transplant candidates. In this review, the implications of kidney disease in liver transplant and heart transplant candidates is reviewed, and current policies used to allocate organs are discussed. Important ethical considerations pertaining to MOT allocation are examined, and future policy modifications that may improve both equity and utility in MOT policy are considered.
Collapse
|
9
|
Abstract
PURPOSE OF REVIEW The Final Rule clearly states that geography should not be a determinant of a chance of a potential candidate being transplanted. There have been multiple concerns about geographic disparities in patients in need of solid organ transplantation. Allocation policy adjustments have been designed to address these concerns, but there is little evidence that the disparities have been solved. The purpose of this review is to describe the main drivers of geographic disparities in solid organ transplantation and how allocation policy changes and other potential actions could impact these inequalities. RECENT FINDINGS Geographical disparities have been reported in kidney, pancreas, liver, and lung transplantation. Organ Procurement and Transplant Network has modified organ allocation rules to underplay geography as a key determinant of a candidates' chance of receiving an organ. Thus, heart, lung, and more recently liver and Kidney Allocation Systems have incorporated broader organ sharing to reduce geographical disparities. Whether these policy adjustments will indeed eliminate geographical disparities are still unclear. SUMMARY Modern allocation policy focus in patients need, regardless of geography. Innovative actions to further reduce geographical disparities are needed.
Collapse
|