Biomarker

High-Sensitivity Troponin (hs-Trop)

Last updated Sat May 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

Observational— Strong prognostic signal at chronically detectable levels

What it measures

Cardiac troponin T and I are structural proteins of cardiomyocytes released into circulation when myocytes are injured. High-sensitivity assays detect levels orders of magnitude below older tests, including the very low concentrations present in apparently healthy people.

Acute use

Standard of care for ruling in/out acute MI in chest pain.
0/1-hour or 0/2-hour algorithms accelerate ED disposition.
Requires kinetic interpretation (rise/fall pattern), not single value.

Chronic prognostic use

Multiple cohorts (ARIC, CHS, HUNT) show that low-level chronic troponin elevation (often within "reference" but detectable) predicts:

Heart failure incidence.
Cardiovascular mortality.
All-cause mortality.

The signal is independent of traditional risk factors. The mechanism is believed to be subclinical myocardial injury from accumulated cardiac stress.

Clinical application

Not yet standard for primary prevention. Some longevity-medicine practices include hs-troponin in advanced cardiometabolic panels. Elevated chronic levels suggest more aggressive cardiovascular risk reduction.

References

Saunders, J. T. et al. Cardiac troponin T measured by a highly sensitive assay predicts coronary heart disease, heart failure, and mortality. Circulation 123, 1367–1376 (2011).