Ultrasonografic monitoring of hemodynamic parameters in symptomatic and asymptomatic patients with high-grade carotid stenosis prior and following carotid endarterectomy

218 patients (124 symptomatic and 94 asymptomatic) with severe carotid stenosis who underwent carotid endarterectomy.

Carotid endarterectomy (CEA)

Pre-operative vs post-operative status, and symptomatic vs asymptomatic patients

Hemodynamic parameters (peak systolic velocity, end-diastolic velocity, time-averaged maximum blood flow velocity, resistance index, and blood flow volume) of the ipsilateral and contralateral internal carotid artery measured by Doppler ultrasonographysurrogate