EMplify Podcast

Take a deeper dive into our peer-reviewed emergency medicine content with the EMplify podcast. Join host Dr. Sam Ashoo for educational, conversational reviews of current evidence guaranteed to help you make your best clinical decisions. Each high-yield episode gives you practical, time-tested guidance from practicing emergency medicine clinicians and subject-matter experts. Listen and learn!

In this episode of EMplify: Conversation, Sam Ashoo, MD and TR Eckler, MD discuss high sensitivity troponin testing and clinical pathways.

Topics discussed include:

Which troponin assay are you currently using and what are its limits of detection?
Do delta troponin results only count if they increase?
If the test result is indeterminate, then what? repeat in 1 hr (European standard), repeat in 3 hours (depending on chest pain onset), or just admit if the HEAR(T) score is high?
What does one negative troponin on presentation mean? No death in 30 days to 1 year but still missed MI?
And more…

References

Anand A, et al; HiSTORIC Investigators†. High-Sensitivity Cardiac Troponin on Presentation to Rule Out Myocardial Infarction: A Stepped-Wedge Cluster Randomized Controlled Trial. Circulation. 2021 Jun 8;143(23):2214-2224. doi: 10.1161/CIRCULATIONAHA.120.052380. Epub 2021 Mar 23. PMID: 33752439; PMCID: PMC8177493.
Chapman AR, et al. Association of High-Sensitivity Cardiac Troponin I Concentration With Cardiac Outcomes in Patients With Suspected Acute Coronary Syndrome. JAMA. 2017 Nov 21;318(19):1913-1924. doi: 10.1001/jama.2017.17488. Erratum in: JAMA. 2018 Mar 20;319(11):1168. Soerensen NA [corrected to Sorensen NA]. PMID: 29127948; PMCID: PMC5710293.
Chenevier-Gobeaux C, et al. Multi-centre evaluation of recent troponin assays for the diagnosis of NSTEMI. Pract Lab Med. 2018 Feb 26;11:23-32. doi: 10.1016/j.plabm.2018.02.003. PMID: 30014015; PMCID: PMC6045566.
Chiang CH, Chiang CH, Lee GH, Qian F, Chen SC, Lee CC. Time to Implement the European Society of Cardiology 0/1-Hour Algorithm. Ann Emerg Med. 2020 Nov;76(5):690-692. doi: 10.1016/j.annemergmed.2020.05.038. PMID: 33097132; PMCID: PMC7575504.
McCarthy CP, Januzzi JL Jr. Increasingly Sensitive Troponin Assays: Is Perfect the Enemy of Good? J Am Heart Assoc. 2020 Dec;9(23):e019678. doi: 10.1161/JAHA.120.019678. Epub 2020 Nov 26. PMID: 33238785; PMCID: PMC7763764.
Neumann JT, et al. Application of High-Sensitivity Troponin in Suspected Myocardial Infarction. N Engl J Med. 2019 Jun 27;380(26):2529-2540. doi: 10.1056/NEJMoa1803377. PMID: 31242362.
Miller J, Cook B, Singh-Kucukarslan G, Tang A, Danagoulian S, Heath G, Khalifa Z, Levy P, Mahler SA, Mills N, McCord J. RACE-IT – Rapid Acute Coronary Syndrome Exclusion using the Beckman Coulter Access high-sensitivity cardiac troponin I: A stepped-wedge cluster randomized trial. Contemp Clin Trials Commun. 2021 Apr 23;22:100773. doi: 10.1016/j.conctc.2021.100773. PMID: 34013092; PMCID: PMC8114080.