Stent-assisted coil embolization for the treatment of wide-necked anterior communicating artery aneurysms

Abstract

Objective To investigate the feasibility, safety and efficacy of the stent-assisted coil embolization for the treatment of wide-necked anterior communicating artery (ACoA) aneurysms. Methods From November 2011 to November 2014, the clinical data of the patients with wide-necked ACoA aneurysms treated by using the stent-assisted coil embolization were analyzed retrospectively. The clinical and radiographic effects were summarized. The perioperative complications were focused on. Results The ACoA wide-neck aneurysms of 29 patients were treated with stent-assisted coil embolization. Two of them abandoned the interventional treatment because of stents could not be in place and release. The immediate results of interventional treatment showed that 21 were embolized completely (78%), 5 were near totally embolized (19%), and 1 was partially embolized (3%). Three patients had intraoperative thrombosis (recanalization achieved after thrombosis, one of them died of cerebral hemorrhage after thrombolysis). One patient suffered cerebral angiospasm, one had aneurysm rupture, and one had distal rupture of the anterior cerebral artery. Twenty-seven patients received clinical follow-up, and the follow-up time ranged from 2 to 36 months (mean 17 months). None of the patients had hemorrhagic or ischemic complications. Sixteen patients received imaging follow-up, and the follow-up ranged from 6 to 12 months (mean 7 months). None of the aneurysms had recurrence. Conclusions Stent-assisted coil embolization of wide-necked ACoA aneurysm is overall feasible, safe, and effective although there are certain risks. Key words: Intracranial Aneurysm; Stents; Embolization, Therapeutic; Cerebral Angiography; Treatment Outcome