Direct aspiration for thrombectomy in ischemic stroke: Impact of dwell time.

Objective: To evaluate the impact of dwell time on the efficacy of the direct aspiration thrombectomy in ischemic stroke.

Methods: The study is a review of our prospective cerebral thrombectomy database of subjects admitted from January to December 2017. We performed direct aspiration with 2 min dwell time as recommended by the manufacturer (group 1) and 5 min dwell time (group 2) between January-June and July-December, respectively.