Rapid diagnostic strategies using high sensitivity troponin assays: what is the evidence and how should they be implemented?. (January 2023)

• Record Type: Journal Article
• Authors: Collinson, Paul; Dakshi, Ahmed; Khand, Aleem
• Is Part Of: Annals of clinical biochemistry. Volume 60:Number 1(2023)
• Page Start: 37
• Page End: 45
• Publication Date: 2023-01
• Subjects: Cardiac troponin I -- cardiac troponin T -- myocardial infarction -- acute coronary syndromes -- rapid diagnostic algortihms; Clinical chemistry -- Periodicals; Clinical biochemistry -- Periodicals; 616.075
• DOI: 10.1177/00045632221100347
• Languages: English
• ISSNs: 0004-5632

Abstract

The introduction of high sensitivity measurement of cardiac troponin T (hs cTnT) and cardiac troponin I (hs cTnI) has given the laboratory the ability to measure very low levels of cardiac troponin. The limit of detection of these assays is well below the 99th percentile. These low levels can also be measured with small values of imprecision. A range of algorithms combining presentation measurement with repeat sample intervals of as little as one to 2 hours have been developed. These are able to predict with acceptable accuracy the diagnosis that would be achieved with continued repeat sampling out to six to 12 hours from presentation. In this article, we review the evidence for the diagnostic accuracy of these approaches and the practical aspects of implementation into routine clinical practice.