Abstract TMP62: Carotid Web Stenting Is Comparable To Atherosclerotic Stenting With Lower Procedural Risk

Abstract

Introduction: Carotid Web (CaW) is an underrecognized etiology for ischemic stroke. This entity has been shown to be amenable to endovascular stenting, similar to carotid atherosclerotic stenosis (CAS). We aimed to assess procedural characteristics of stenting for CaW as compared to CAS. Methods: We retrospectively analyzed a cohort of patients at a single comprehensive stroke center from October 2014 to March 2021 who had undergone endovascular stent placement for symptomatic CAS or CaW. Patients who received other intervention (e.g. thrombectomy, aneurysm repair) on the same day as stent placement were excluded. Baseline patient characteristics, procedural data, periprocedural complications, and follow-up statistics were analyzed. Results: In total, 105 patients underwent stent placement status post ischemic stroke or transient ischemic attack; 79 patients had CAS and 26 patients had CaW. Patients with CAS were older on average (CAS 63 vs CAS 53.5 years, p < 0.001 ) and less likely to be female (OR 0.116; 95% CI 0.041 to 0.326, p <0.001). CAS patients were more likely to have vascular risk factors such as hypertension, hyperlipidemia, and Diabetes ( Table ). Radiation, need for angioplasty, and filter time were significantly lower in CaW procedures. No significant difference was found between the two pathologies in periprocedural complications such as hypotension, need for vasopressors, or bradycardia. However, post-procedural restenosis only occurred in CAS stents. Conclusion: Stenting for CaW is comparable to stenting for CAS in terms of vasovagal side effects, but associated with lower filter times, lower radiation dose, lower need for angioplasty, and lower rates of restenosis.