What were the outcomes reported in the WEAVE registry after percutaneous transluminal angioplasty and stenting (PTAS) in patients with ICAS?
The WEAVE prospective registry (Wingspan Stent System Post Market Surveillance) reported a periprocedural complication rate of 2.6% in 152 patients who met the specific US Food and Drug Administration Humanitarian Device Exemption criteria for Wingspan stent use, but outcomes beyond 72 hours after the procedure have not been published. However, the stroke or death rate was 23.9% in the 46 patients treated off-label, many of whom had not failed medical therapy or were treated less than a week from symptom onset.