Prevalence of carotid web in a French cohort of cryptogenic stroke

Background and purpose Carotid webs (CaW) may be an under-recognized cause of anterior circulation cryptogenic ischemic stroke (ACIS). Prevalence is still unknown in European patients with ACIS. Objective To evaluate the prevalence CaW ACIS describe phenotype a cohort from French center. Methods We conducted retrospective monocentric study 01/01/2015 to 31/12/2019 (Montpellier University Hospital, France), consecutive (AIS) ≤65 years old prospective database. Using ASCOD phenotyping, were selected cervical CTA reviewed find CaW. Results Among 1053 AIS patients, 266 included. included (mean age 50, women 58%), was ipsilateral carotid (iCaW) 21 patients: 7.9% (95%CI [4.6–11.1]), 51, 11 women, 16 Caucasian). iCaW uncovered during review 6/21 (29%) patients. Comparison between those without showed no differences except that higher rate intracranial large vessel occlusion (LVO) (62.4 vs 37.6%; p = 0.03). Patients under conservative medical therapy had annualized recurrence (SRR) 11.4% [8.4–15.1]. Conclusions identified as source about 8% population associated LVO high SRR therapy.