This is a retrospective report of 137 carotid endarterectomies performed under regional anesthesia operated between January 1992 on June 1996. All patients have a tight stenosis between 70% on 99%, and 49% were symptomatic. Forty-three patients of the 132 had a controlateral hemodynamically significant carotid stenosis with none occlusion. The TCD examinations were all performed with ADMS Doppler Spectradop with 3-MHz and 2-MHz probes