title: Solitaire AB stent-assisted coiling embolization for the treatment of ruptured very small intracranial aneurysms.
abstract: Recent advances in neuroradiological techniques have increasingly improved the diagnosis rate for very small aneurysms, particularly with the widespread use of three-dimensional cerebral angiography. However, the treatment of very small aneurysms remains a considerable challenge for neurosurgeons. Endovascular coiling has emerged as a potential treatment option for intracranial aneurysms. The aim of the present study was to evaluate the safety and efficacy of Solitaire AB stent-assisted coiling embolization for the treatment of ruptured very small intracranial aneurysms. This retrospective study included nine consecutive patients with ruptured very small intracranial aneurysms (≤3 mm) that underwent Solitaire AB stent-assisted coiling embolization. The aneurysms were located in the ophthalmic branch of the internal carotid artery (n=2), the posterior communicating branch of the internal carotid artery (n=4), the top of the basilar artery (n=1) and the middle cerebral artery (n=2). Solitaire AB stents were successfully implanted in all nine patients. Of the nice individuals, six patients exhibited complete occlusion at Raymond grade I and three patients exhibited occlusion at Raymond grade II. No aneurysm rupture was observed during the surgery. During the follow-up period of 8-13 months, no intracranial hemorrhage occurred. A total of seven patients underwent follow-up digital subtraction angiography at 5-10 months post-intervention. No recurrence of the aneurysms and no stenosis or occlusion of the parent arteries was observed. Therefore, Solitaire AB stent-assisted coil embolization was demonstrated to be a safe and effective treatment for ruptured very small intracranial aneurysms. The long-term efficacy of this technique may be improved by increasing the packing density around the aneurysmal neck and improving the hemodynamics.
authors.affiliation: Department of Neurosurgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China ; Department of Neurosurgery, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China.
authors.forename: Jifang
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Neurosurgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Donghai
authors.initials: D
authors.lastname: Wang
authors.affiliation: Department of Neurosurgery, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China.
authors.forename: Xingang
authors.initials: X
authors.lastname: Li
keywords: Solitaire AB stent; endovascular treatment; tiny intracranial aneurysm