• Aaron P Wessell, Gregory Cannarsa, Helio Carvalho, Matthew J Kole, Pankaj Sharma, Elizabeth J Le, Gaurav Jindal, Timothy R Miller, and Dheeraj Gandhi.
• Department of Neurosurgery, University of Maryland Medical Center, USA.
• Neuroradiol J. 2020 Feb 1; 33 (1): 17-23.

IntroductionThe Sofia 6-French PLUS catheter is a recently approved aspiration catheter for use in neuro-endovascular procedures. The description of Sofia 6-French PLUS use in acute ischemic stroke is limited.ObjectiveThe purpose of this article is to describe our initial experience with the new Sofia 6-French PLUS catheter for treatment of acute ischemic stroke and to report on its safety and efficacy.MethodsWe performed a retrospective study of 54 thrombectomy cases treated with the Sofia 6-French PLUS catheter. Mean patient age and admission National Institutes of Health Stroke Scale score were 65.30 (1.92) and 15.98 (0.89), respectively. The most common sites of vessel occlusion included the M1 segment (50%) and internal carotid artery (31%). Thrombectomy was performed using the direct aspiration first pass technique and/or aspiration in conjunction with a stent retriever.ResultsSuccessful navigation of the Sofia 6-French PLUS catheter to the site of thromboembolus was achieved in 94% of cases. Revascularization was achieved in a total of 47 cases (87%). Mean time from groin access to revascularization was 42.79 (3.23) min. There were no catheter-related complications. Final outcome data was available for 44 patients (81%). Of these patients, 41% achieved a good outcome (modified Rankin scale score of 0-2) at 60-90 day follow-up, 41% had a poor outcome (modified Rankin 3-5) and eight patients died (18%).ConclusionsWe demonstrate the safe and effective use of the Sofia 6-French PLUS catheter for treatment of acute ischemic stroke. Future studies in the form of a randomized clinical trial or multicenter registry are warranted to further evaluate its comparative safety and efficacy.

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