When Does Primary Prevention Encroach on Secondary Prevention?

Area of Science:

• Cardiology
• Preventive Medicine
• Medical Imaging

Background:

• Primary prevention of atherosclerotic cardiovascular disease (ASCVD) typically involves lower risk than secondary prevention.
• A spectrum of risk exists within primary prevention, with some individuals approaching secondary prevention risk levels.

Purpose of the Study:

• To review clinical conditions where primary prevention ASCVD risk mirrors secondary prevention risk.
• To identify high-risk individuals within primary prevention cohorts.

Main Methods:

• Review of clinical conditions and risk stratification strategies in ASCVD prevention.
• Analysis of coronary artery calcium (CAC) scoring for risk assessment in primary prevention.

Main Results:

• Coronary artery calcium (CAC) scores ≥300 AU indicate ASCVD event rates comparable to secondary prevention populations.
• CAC scores ≥1,000 AU are associated with ASCVD risks seen in very high-risk secondary prevention groups.
• Current guidelines may not fully capture the high-risk status of certain primary prevention patients.

Conclusions:

• Identifying primary prevention patients with ASCVD risk equivalent to secondary prevention is crucial.
• Utilizing tools like CAC scoring can enable more precise risk stratification and targeted mitigation strategies.
• Tailoring interventions based on individual risk profiles improves ASCVD prevention outcomes.