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J. Thorac. Cardiovasc. Surg. · Apr 2022
Hepatorenal dysfunction assessment with the Model for End-Stage Liver Disease Excluding INR score predicts worse survival after heart transplant in pediatric Fontan patients.
- Shahnawaz Amdani, Kathleen E Simpson, Phil Thrush, Renata Shih, Jacob Simmonds, Ken Knecht, Douglas B Mogul, Kathleen Hurley, Devin Koehl, Ryan Cantor, David Naftel, James K Kirklin, and Kevin P Daly.
- Department of Cardiology, Cleveland Clinic Children's Hospital, Cleveland, Ohio. Electronic address: amdanis@ccf.org.
- J. Thorac. Cardiovasc. Surg. 2022 Apr 1; 163 (4): 1462-1473.e12.
BackgroundFontan physiology results in multiorgan dysfunction, most notably affecting the liver and kidney. We evaluated the utility of Model for End-Stage Liver Disease Excluding INR (MELD-XI) score, a score evaluating the function of both liver and kidney to identify Fontan patients at increased risk for morbidity and mortality post-heart transplant.MethodsThe Pediatric Heart Transplant Society database was queried to identify Fontan patients listed for heart transplant between January 2005 and December 2018. MELD-XI scores were calculated at listing and heart transplant. A multivariable analysis was conducted to identify risk factors for post-heart transplant mortality. Demographic, clinical characteristics, and survival differences were evaluated and compared between the high and low MELD-XI score cohorts. The impact of changing MELD-XI scores during the waitlist period on post-heart transplant outcomes was also evaluated.ResultsOf 565 Fontan patients who underwent transplantation, 524 (93%) had calculable MELD-XI scores at the time of heart transplant: 421 calculable at listing and 392 calculable at listing and at heart transplant. On multivariable analysis, only MELD-XI score (squared) (hazard ratio, 1.007), history of protein-losing enteropathy (hazard ratio, 2.1), and ventricular assist device use at transplant (hazard ratio, 3.4) were risk factors for early phase post-heart transplant mortality. Patients with high MELD-XI scores at heart transplant had inferior survival post-heart transplant (P = .02); those in the high MELD-XI score cohort at wait listing and heart transplant tend to have the worst post-heart transplant survival; however, this was not significant (P = .42).ConclusionsThe MELD-XI, an easily calculated score, serves as a valuable aid in identifying pediatric Fontan patients at increased risk for post-heart transplant mortality.Copyright © 2021 The American Association for Thoracic Surgery. All rights reserved.
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