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Adoption of High-sensitivity Troponin Testing and Emergency Physician Ordering Behavior

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Introduction Emergency departments (ED) are rapidly replacing conventional troponin assays with high-sensitivity troponin tests. We sought to evaluate emergency physician utilization of troponin tests before and after high-sensitivity troponin introduction… Click to show full abstract

Introduction Emergency departments (ED) are rapidly replacing conventional troponin assays with high-sensitivity troponin tests. We sought to evaluate emergency physician utilization of troponin tests before and after high-sensitivity troponin introduction in our ED. Methods We retrospectively examined 9,477 ED encounters, identifying the percentage in which physicians ordered a serum troponin both before and after our institution adopted a high-sensitivity troponin test. Results After introduction of high-sensitivity troponin testing, the percentage of ED encounters in which physicians ordered troponin studies decreased (28.3% before vs 22% after; P <.001), with the drop most pronounced in admitted patients (decrease of 10.9% [95% confidence interval [CI]: 7.3%–14.5%] in admitted patients vs decrease of 3.6% [95% CI: 1.7%–5.4%] in discharged patients; P<.001) Conclusion Introduction of high-sensitivity troponin testing was associated with a decrease in troponin ordering. While the reasons for this are unclear, it is possible that physicians became more selective in their ordering behavior because of the lower specificity of high-sensitivity troponin.

Keywords: emergency; troponin testing; sensitivity troponin; high sensitivity; troponin

Journal Title: Western Journal of Emergency Medicine
Year Published: 2022

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