The HEART score has less utility with high sensitivity troponin

Area of Science:

• Cardiology
• Emergency Medicine
• Clinical Risk Stratification

Background:

• Clinical risk scores for acute chest pain were validated with older troponin assays.
• The study aimed to evaluate the HEART score and decision pathways with high-sensitivity troponin.

Purpose of the Study:

• To analyze the utility of the HEART score and clinical decision pathways in evaluating acute chest pain using high-sensitivity troponin.
• To compare the predictive value of traditional risk scores with newer diagnostic tools.

Main Methods:

• Retrospective study of 1,014 adult patients with nontraumatic chest pain.
• Risk stratification using the HEART score and an institution-specific pathway.
• Logistic regression models were used to predict acute coronary syndrome or major adverse cardiovascular events within 30 days.

Main Results:

• A model using only electrocardiogram (ECG) and high-sensitivity troponin showed high predictive value (C-statistic = 0.883).
• Adding medical history, risk factors, and age (HEART score) did not significantly improve the model's predictive value (C-statistic = 0.876).
• The ECG and high-sensitivity troponin model effectively ruled out adverse events in intermediate-risk patients.

Conclusions:

• High-sensitivity troponin and ECG alone are sufficient for risk stratification in most acute chest pain patients.
• Traditional scoring systems validated with older troponin assays have reduced utility with high-sensitivity troponin.
• This impacts the assessment of intermediate-risk patients previously categorized using older methods.