• Hiba Ghandour, Aaron J Weiss, Mario Gaudino, Michael Halkos, Danny Chu, Bradley S Taylor, John Puskas, Deepak L Bhatt, Marco Zenati, John Stulak, Todd Rosengart, Husam H Balkhy, Eugene H Blackstone, Lars G Svensson, Faisal G Bakaeen, CABG Public Reporting Working Group, Ozgun Erten, Tara Karamlou, Edward G Soltesz, A Marc Gillinov, Anthony Warmuth, Eric E Roselli, and Nicholas G Smedira.
• Coronary Center, Department of Thoracic and Cardiovascular Surgery, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio.
• J. Thorac. Cardiovasc. Surg. 2023 Sep 1; 166 (3): 805815.e1805-815.e1.

ObjectiveA number of publicly available rating algorithms are used to assess hospital performance in coronary artery bypass grafting (CABG). However, concerns remain that these algorithms fail to correlate with each other and inadequately capture the case complexity of individual center practices.MethodsComposite star ratings for isolated CABG from the Society of Thoracic Surgeons public reporting database were extracted for 2018-2019. U.S. News & World Report Best Hospitals was used to extract CABG ratings as well as overall cardiology and heart surgery ranking, and the Centers for Medicare & Medicaid Services Hospital Compare was used to extract CABG volume and 30-day mortality. Spearman correlation coefficients were used to assess possible relationships. Expert opinion on risk adjustment and program evaluation was incorporated.ResultsCorrelations between Society of Thoracic Surgeons star rating and U.S. News & World Report overall ranking in cardiology and heart surgery (r = 0.15) and Centers for Medicare & Medicaid Services 30-day mortality (r = -0.27) were poor. Society of Thoracic Surgeons star rating correlated weakly with U.S. News & World Report CABG ratings (r = 0.33) and with Centers for Medicare & Medicaid Services CABG volume (r = 0.32), whereas the latter 2 correlated moderately (r = 0.52) with each other. Of the 75 centers with accredited cardiac surgery training programs, 13 (17%) did not participate in Society of Thoracic Surgeons public reporting. Important gaps were identified in risk assessment, and potential solutions are proposed.ConclusionsCorrelations between current CABG public reporting systems are weak. Further work is needed to refine and standardize CABG rating systems to more adequately capture the scope and complexity of an individual center's clinical practice and to better inform patients.Copyright © 2022 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

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