抄録
To reduce the incidence of thromboembolic events during the perioperative period of carotid artery stenting (CAS), filter devices, distal balloons, and proximal guiding balloons have been developed as embolic protection devices. We report the treatment outcomes of 22 patients who underwent 24 CAS procedures with a distal filter and proximal balloon deployed for double protection as a flow arrest system with intermittent antegrade blood flow. Seventeen patients with symptomatic carotid stenosis and 7 patients with asymptomatic carotid stenosis were treated using CAS with the double protection technique. New ischemic lesions were detected on diffusion-weighted magnetic resonance imaging after 7 procedures. One patient experienced a minor stroke and 1 experienced pulmonary infarction postoperatively. Both patients recovered completely within 30 days after the procedures. Our double protection technique appears safe and useful; however, it is complex and expensive to use, and the volume of aspirated blood is high. This technique is suitable for patients with large or soft carotid plaques and clamping intolerance.
