• Am J Emerg Med · Jul 2021

    The disutility of stress testing in low-risk HEART Pathway patients.

    • Nicklaus P Ashburn, Zachary P Smith, Kale J Hunter, Nella W Hendley, Simon A Mahler, Brian C Hiestand, and Jason P Stopyra.
    • Department of Emergency Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States. Electronic address: n.ashburn@wakehealth.edu.
    • Am J Emerg Med. 2021 Jul 1; 45: 227232227-232.

    BackgroundThe HEART Pathway identifies low-risk chest pain patients for discharge from the Emergency Department without stress testing. However, HEART Pathway recommendations are not always followed. The objective of this study is to determine the frequency and diagnostic yield of stress testing among low-risk patients.MethodsAn academic hospital's chest pain registry was analyzed for low-risk HEART Pathway patients (HEAR score ≤ 3 with non-elevated troponins) from 1/2017 to 7/2018. Stress tests were reviewed for inducible ischemia. Diagnostic yield was defined as the rate of obstructive CAD among patients with positive stress testing. T-test or Fisher's exact test was used to test the univariate association of age, sex, race/ethnicity, and HEAR score with stress testing. Multivariate logistic regression was used to determine the association of age, sex, race/ethnicity, and HEAR score with stress testing.ResultsThere were 4743 HEART Pathway assessments, with 43.7% (2074/4743) being low-risk. Stress testing was performed on 4.1% (84/2074). Of the 84 low-risk patients who underwent testing, 8.3% (7/84) had non-diagnostic studies and 2.6% (2/84) had positive studies. Among the 2 patients with positive studies, angiography revealed that 1 had widely patent coronary arteries and the other had multivessel obstructive coronary artery disease, making the diagnostic yield of stress testing 1.2% (1/84). Each one-point increase in HEAR score (aOR 2.17, 95% CI 1.45-3.24) and being male (aOR 1.59, 95% CI 1.02-2.49) were associated with testing.ConclusionsStress testing among low-risk HEART Pathway patients was uncommon, low yield, and more likely in males and those with a higher HEAR score.Copyright © 2020 Elsevier Inc. All rights reserved.

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