Saudi Heart Association Position Statement on Early Detection of Subclinical Atherosclerosis in Clinical Practice

Atherosclerosis is the leading underlying cause of cardiovascular disease (CVD), which remains the primary cause of mortality in Saudi Arabia. Saudi patients experience CVD events nearly a decade earlier than their Western counterparts. Given the limitations of traditional risk assessment tools, there is a growing need to detect subclinical atherosclerosis to refine risk stratification and improve primary prevention strategies, particularly in younger and asymptomatic individuals.

The Saudi Heart Association (SHA) developed this position statement through a structured, multistep process that included a comprehensive literature review and two expert panel meetings. Recommendations were formulated based on current evidence, expert consensus, and consideration of population-specific characteristics and healthcare infrastructure in Saudi Arabia. The final recommendations were reviewed by the expert panel to ensure scientific accuracy and relevance to local practice.

The SHA recommends systematic screening for subclinical atherosclerosis in individuals aged 35 years or older with borderline or intermediate 10-year ASCVD risk (5-20 %). Subclinical atherosclerosis can be assessed using validated non-invasive imaging modalities: coronary artery calcium (CAC) scoring, coronary computed tomography angiography (CCTA), carotid ultrasound, or ankle-brachial index (ABI). CAC scoring is the most validated modality, especially in individuals aged ≥40 years, while CCTA offers the advantage of detecting both calcified and non-calcified plaques. Carotid ultrasound can be advantageous in younger adults, and ABI is useful in older adults. Management should be tailored to disease burden: lifestyle modification is advised for individuals with minimal disease, while moderate-to high-intensity statin therapy is recommended in those with mild or moderate to severe subclinical disease. These recommendations aim to support evidence-based integration of subclinical atherosclerosis screening into routine clinical practice, facilitating earlier interventions and reducing the burden of cardiovascular disease in Saudi Arabia.