Why Screening for Asymptomatic Carotid Artery Stenosis Isn't Recommended
Why Screening for Asymptomatic Carotid Artery Stenosis Isn't Recommended
The Screening Debate
While screening for asymptomatic carotid artery stenosis might seem beneficial, experts advise against it. Discover the reasons behind this recommendation.
Contents
- Low Prevalence and Risk
- False Positives and Risks
- Expert Guidelines
Low Prevalence and Risk
Screening for carotid artery stenosis in asymptomatic individuals is not recommended due to its low prevalence and the minimal annual risk of stroke. The prevalence of severe stenosis is less than 3% even in older adults, making widespread screening impractical.
False Positives and Risks
The use of noninvasive screening tests can result in more false positives than true positives. This can lead to unnecessary interventions and increased risk of complications, including stroke and death associated with surgical procedures.
Expert Guidelines
Major health organizations, including the US Preventive Services Task Force, recommend against routine screening. Their guidelines emphasize the lack of evidence supporting benefits and highlight potential harms.
FAQs
Why isn't screening recommended?
Due to low prevalence and high false-positive rates.
What are the risks of false positives?
They can lead to unnecessary procedures with complications.
Who advises against screening?
Organizations like the US Preventive Services Task Force.
The Bottom Line
The risks of screening for asymptomatic carotid artery stenosis outweigh the benefits.
Additional References
- US Preventive Services Task Force, Krist AH, Davidson KW, et al. Screening for Asymptomatic Carotid Artery Stenosis: US Preventive Services Task Force Recommendation Statement. JAMA 2021; 325:476.
- Goldstein LB. Screening for Asymptomatic Carotid Artery Stenosis: Lack of Clinical Benefit, Potential for Harm. JAMA 2021; 325:443.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic.