Coronary Artery Disease Workup in Young Patients

Initial Risk Stratification

The European Society of Cardiology recommends using the Risk Factor-weighted Clinical Likelihood (RF-CL) model to estimate pre-test probability of obstructive CAD in young patients with suspected CAD and risk factors, then proceeding with coronary artery calcium scoring (CACS) as the primary initial diagnostic test 1, 2
The American College of Cardiology suggests assessing symptom characteristics, such as retrosternal pressure/heaviness/squeezing, radiating to left arm/jaw/neck, with diaphoresis, dyspnea, or nausea, and counting traditional risk factors, including family history of early CAD, current/past smoking, dyslipidemia, hypertension, and diabetes, to calculate the RF-CL score 1, 2

The European Society of Cardiology recommends CACS as the first-line test to reclassify risk and guide subsequent management in young patients with low-to-moderate pre-test probability 4, 5
A CACS score of 0 provides excellent negative predictive value with 10-year event rates <2.4%, regardless of risk factor burden, and defer additional testing and focus on aggressive risk factor modification 4, 5

The American College of Cardiology recommends systematic evaluation for non-atherosclerotic etiologies, such as coronary anomalies, myocardial bridging, Kawasaki disease sequelae, and spontaneous coronary artery dissection (SCAD), in young adults with CAD 6

The American College of Cardiology suggests evaluating unique risk enhancers, such as chronic inflammatory conditions, recreational drug use, genetic factors, and vaping and tobacco use, in young adults with CAD 6

The European Society of Cardiology recommends proceeding to anatomic or functional imaging, such as coronary CT angiography (CCTA) or stress echocardiography, based on clinical context, for patients with CACS >100 or moderate-to-high pre-test probability 1, 2, 4, 5

The American College of Cardiology recommends more intensive risk factor modification, including lipid management targets, such as LDL cholesterol goal <100 mg/dL, and blood pressure control, with target BP ≤90th percentile, in young patients with documented CAD 6, 7
The American Academy of Pediatrics suggests aspirin therapy, diabetes management, and smoking cessation in all young adults with documented CAD unless contraindicated 6, 7

The American College of Cardiology recommends lifelong cardiovascular specialist follow-up, with a multidisciplinary team approach, and serial risk factor monitoring, including repeat lipid panels every 3-6 months until goals achieved, then annually 6, 7, 8