[High-sensitivity troponin in patients with stable coronary artery disease]

Area of Science:

• Cardiology
• Biomarkers
• Clinical Diagnostics

Background:

• More sensitive myocardial necrosis markers improve acute myocardial infarction diagnosis.
• Elevated troponin in non-myocardial infarction patients presents diagnostic challenges and prolonged admissions.
• These elevated levels have limited diagnostic but significant prognostic value.

Purpose of the Study:

• To evaluate the utility of high-sensitivity troponin in patients with stable disease or no apparent clinical disease.
• To assess the prognostic value of troponin levels in stable patient populations.
• To determine the practical value for general physicians in daily practice.

Main Methods:

• Studies assessed high-sensitivity troponin in patients with coronary artery disease and those without apparent clinical disease.
• Long-term cardiac mortality was evaluated in relation to troponin levels.
• The cost-effectiveness of interventions in identified high-risk subgroups was considered.

Main Results:

• High-sensitivity troponin consistently showed a strong association with long-term cardiac mortality in stable patients.
• Elevated troponin levels identified individuals at higher risk.
• The diagnostic value in patients without myocardial infarction was limited.

Conclusions:

• Troponin levels are strongly associated with long-term cardiac mortality in stable patients.
• While useful for risk stratification, the clinical utility for guiding interventions in general practice is unclear.
• Further research is needed to determine the prognostic marker role in stable patients and its impact on cost-effective interventions.