Prognosticating Clinical Prediction Scores Without Clinical Gestalt for Patients With Chest Pain in the Emergency...

Area of Science:

• Emergency Medicine
• Cardiology
• Clinical Risk Stratification

Background:

• Assessing patients with chest pain in the emergency department presents ongoing challenges.
• Current guidelines advocate for quantitative ischemic risk assessment using validated risk scores.

Purpose of the Study:

• To evaluate the predictive performance of the Thrombosis in Myocardial Infarction (TIMI), Global Registry of Acute Coronary Events (GRACE), and History, ECG, Age, Risk Factors, Troponin (HEART) scores, along with the North American Chest Pain Rule (NACPR).
• To determine the accuracy of these scores in predicting 30-day major adverse cardiac events (MACE) when clinical gestalt components are excluded.

Main Methods:

• A prospective cohort study involving 1081 adult patients presenting to the emergency department with undifferentiated chest pain.
• Application and calculation of modified clinical prediction rules, omitting subjective clinical gestalt elements.
• Performance evaluation using receiver operating characteristic curves and area under the curve (AUC) analysis.

Main Results:

• Thirty-day MACE occurred in 15.2% of patients.
• The HEART score achieved the highest AUC (0.845), outperforming the TIMI score (0.809) and GRACE score (0.756).
• Modified HEART score (≥1) showed a sensitivity of 98.8% and specificity of 11.7% for predicting MACE.

Conclusions:

• The modified HEART score exhibits superior discriminative capacity for predicting 30-day MACE in patients with chest pain when clinical gestalt is excluded.
• This finding supports the utility of the HEART score as a quantitative tool in emergency department chest pain evaluations.