Cervical bruits were highly associated with tight internal carotid artery stenosis (P=0.004), whereas unilateral ocular bruits occurred in 9 of 10 patients contralateral to an occlusion.
Observational (n=50)
Do cervical and ocular bruits correlate with specific angiographic features in patients with severe extracranial internal carotid artery occlusive disease?
Cervical bruits are highly associated with tight internal carotid artery stenosis, while unilateral ocular bruits contralateral to occlusion suggest augmentation flow.
p-value: p=0.004
The clinical and angiographic features of cervical and ocular bruits were correlated in 50 consecutive patients with severe extracranial internal carotid artery occlusive disease. Cervical bruits, generally localized to the carotid bifurcation, were highly associated (P = 0.004) with "tight" (residual lumen less than or equal to 2 mm) internal carotid artery stenosis, but significantly less often with a widely patent or occluded internal carotid artery. Angiographic features of a "slow-flow" state through a patent, but "tight" stenosis were identified as the apparent explanation for the absence of bruit in some patients. A unilateral ocular bruit contralateral to the side of internal carotid artery occlusion occurred in 9 of 10 patients, more often than an associated cervical bruit, and was interpreted as a sign of augmentation flow.
Pessin et al. (Tue,) conducted a observational in severe extracranial internal carotid artery occlusive disease (n=50). Cervical and ocular bruits vs. Absence of bruits was evaluated on Association of cervical bruits with tight internal carotid artery stenosis (residual lumen ≤ 2 mm) (p=0.004). Cervical bruits were highly associated with tight internal carotid artery stenosis (P=0.004), whereas unilateral ocular bruits occurred in 9 of 10 patients contralateral to an occlusion.