Treatment of direct carotid-cavernous fistula with Willis covered stent with midterm follow-up

Abstract Background Willis covered stent is the first designed exclusively for intracranial vasculature, and its application in carotid-cavernous fistula limited. The aim to evaluate feasibility efficacy of this device treating direct fistula. Methods Ten consecutive patients with were treated our institution stents from September 2013 December 2015. characteristics these immediate follow-up results retrospectively reviewed. Results Of 10 patients, 8 time, 2 had been elsewhere. successfully released 9 patients. Abnormal arteriovenous shunt disappeared 6 cases immediately after deployment endoleak occurred 3 cases. Endoleak at 6-month angiography one case was sealed coils through a pre-set microcatheter another case. Parent artery sacrificed as remained despite repeated balloon dilation second third All got clinical follow-ups least 24 months 7 received angiographic follow-up. Symptoms relieved gradually all except slight oculomotor paralysis visual acuity case, respectively. In-stent stenosis found 1 no recurrence observed. Conclusions feasible