Key result
Unilateral bruits in the upper neck indicated underlying internal carotid artery stenosis in 61% of patients, compared to 11% for bruits localized to the supraclavicular area.
Why the study?
Does auscultation of asymptomatic neck bruits accurately predict underlying internal carotid artery stenosis compared to carotid Doppler examination?
Cross-Sectional (n=336)
Does auscultation of asymptomatic neck bruits accurately predict underlying internal carotid artery stenosis compared to carotid Doppler examination?
Absolute Event Rate: 61% vs 11%
While neck bruits are valuable clinical indicators of underlying carotid artery disease, Doppler ultrasound examination is necessary to significantly improve diagnostic accuracy.
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Neck bruit location stratifies stenosis likelihood; hypothesis-generating for auscultation-guided triage but does not replace Doppler.
Chambers et al. (1985) conducted a cross-sectional in Asymptomatic neck bruits (n=336). Unilateral bruits in the upper neck vs. Bruits localized to the supraclavicular area was evaluated on Underlying internal carotid artery (ICA) stenosis detectable by carotid Doppler (>35% stenosis). Unilateral bruits in the upper neck indicated underlying internal carotid artery stenosis in 61% of patients, compared to 11% for bruits localized to the supraclavicular area.
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