Screening for Asymptomatic Carotid Artery Stenosis: US Preventive Services Task Force Recommendation Statement

Area of Science:

• Cardiovascular Medicine
• Preventive Cardiology
• Vascular Surgery

Background:

• Carotid artery stenosis is a common atherosclerotic disease affecting extracranial arteries.
• Asymptomatic carotid artery stenosis (ACAS) occurs in individuals without prior stroke or neurological symptoms.
• Prevalence of ACAS increases with age, posing a public health concern.

Purpose of the Study:

• To reaffirm the 2014 recommendation on screening for ACAS.
• To evaluate new evidence on the benefits and harms of screening and interventions for ACAS.
• To assess the efficacy of revascularization procedures in asymptomatic individuals.

Main Methods:

• The US Preventive Services Task Force (USPSTF) conducted a reaffirmation evidence review.
• Focused on key questions regarding screening benefits and harms.
• Included analysis of revascularization interventions for ACAS.

Main Results:

• No substantial new evidence was found to alter the previous recommendation.
• The USPSTF concluded that harms of screening for ACAS outweigh the benefits.
• Evidence on interventions like revascularization did not demonstrate a favorable risk-benefit balance for screening.

Conclusions:

• The USPSTF recommends against screening for asymptomatic carotid artery stenosis in the general adult population.
• This constitutes a "D" recommendation, indicating recommendation against the service.
• The decision is based on a moderate certainty that harms exceed benefits.