• Avirup Guha, Amit K Dey, Ankur Kalra, Richard Gumina, Maryam Lustberg, Carl J Lavie, Joseph F Sabik, and Daniel Addison.
• Cardio-Oncology Program, Division of Cardiovascular Medicine, The Ohio State University, Columbus, OH; Division of Medical Oncology, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH; Harrington Heart and Vascular Institute, Case Western Reserve University, Cleveland, OH.
• Mayo Clin. Proc. 2020 Sep 1; 95 (9): 1865-1876.

ObjectiveTo characterize the contemporary efficacy and utilization patterns of coronary artery bypass grafting (CABG) in specific cancer types.MethodsWe leveraged the data from the National Inpatient Sample and plotted trends of utilization and outcomes of isolated CABG (with no other additional surgeries during the same hospitalization) procedures from January 1, 2003, through September 1, 2015. Propensity score matching was used to assess for potential differences in outcomes by type of cancer status among contemporary (2012-2015) patients.ResultsOverall, the utilization of CABG decreased over time (250,677 in 2003 vs 134,534 in 2015, P<.001). However, the proportion of those with comorbid cancer increased (7.0% vs 12.6%, P<.001). Over time, in-hospital mortality associated with CABG use in cancer remained unchanged (.9% vs 1.0%, P=.72); yet, cancer patients saw an increase in associated major bleeding (4.5% vs 15.3%, P<.001) and rate of stroke (.9% vs 1.5%, P<.001) over time. In-hospital cost-of-care associated with CABG-use in cancer also increased over time ($29,963 vs $33,636, P<.001). When stratified by cancer types, in-hospital mortality was not higher in breast, lung, prostate, colon cancer, or lymphoma versus non-cancer CABG patients (all P>.05). However, there was a significantly higher prevalence of major bleeding but not stroke in patients with breast and prostate cancer only compared with non-cancer CABG patients (P<.01). Discharge dispositions were not found to be different between cancer sub-groups and non-cancer patients (P>.05), except for breast cancer patients who had lower home care, but higher skilled care disposition (P<.001).ConclusionAmong those undergoing CABG, the prevalence of comorbid cancer has steadily increased. Outside of major bleeding, these patients appear to share similar outcomes to those without cancer indicating that CABG utilization should be not be declined in cancer patients when otherwise indicated. Further research into the factors underlying the decision to pursue CABG in specific cancer sub-groups is needed.Copyright © 2020 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.

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