JACC This Week Relationship between exercise-induced cardiac troponin elevations and occult coronary atherosclerosis in middle-aged athletes | JACC
Jun 16, 2025
Dr. Valentin Fuster dives into a fascinating study about cardiac troponin levels in middle-aged recreational athletes. Elevated troponin after intense exercise is common, but surprisingly, it doesn't indicate hidden coronary artery disease. This revelation challenges previous beliefs about athletes' heart health and opens up questions about the origins and implications of these elevations. Long-term follow-ups are crucial to fully understand what these findings mean for athletes and their cardiac health.
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Troponin Elevation Varies Widely
- Exercise frequently elevates cardiac troponin levels, but this elevation varies widely among individuals.
- This variability raises questions about the underlying release mechanisms and clinical importance of troponin increases after exercise.
No Link Between Troponin and Atherosclerosis
- Elevated post-exercise cardiac troponin in middle-aged athletes does not correspond to higher prevalence of hidden coronary atherosclerosis.
- Therefore, exercise-induced troponin spikes are not explained by undetected coronary artery disease.
Troponin T Elevates More Often
- Post-exercise troponin T elevates more frequently than troponin I, highlighting troponin T as a key focus.
- Low post-exercise troponin does not fully exclude coronary artery disease, as some low responders still have obstructive disease.