Application of Lvis stents in endovascular treatment of intracranial wide-necked aneurysms

Abstract

Objective To investigate the safety and efficacy of Lvis stent-assisted embolization of intracranial wide-necked aneurysms. Methods Twenty-four patients with intracranial wide-neck aneurysm treated with Lvis stent-assisted embolization at the Department of Neurosurgery, Beijing Xuanwu Hospital, Capital Medical University from January to July 2014 were selected. The clinical data, endovascular treatment methods and efficacy of the 24 patients were analyzed retrospectively. The degree of aneurysm embolization was evaluated according to Raymond classification, and its clinical efficacy was evaluated according to the modified Ranking scale (mRS) scores. Results The stents of 24 patients with intracranial wide-necked aneurysms were released completely (100%). Raymond grade Ⅰ embolization was 18 cases (75%), Raymond grade Ⅱ embolization was 4 cases (17%), and Raymond grade Ⅲ embolization was 2 cases (8%). One patient had in-stent thrombosis in the process of embolization, and after being treated with tirofiban hydrochloride sodium chloride injection, the thrombosis disappeared. The effective rate of embolization was 92%. After six months of follow-up, 21 patients had good curative effect (the mRS score 0-2), 3 had poor effect (the mRS score 3-6), and the good rate was 88%. Conclusion Lvis stent-assisted embolization of intracranial wide-neck aneurysms is safe and feasible, the short-term efficacy is reliable. Because of the short follow-up time, further research is needed to determine the long-term stability of coils and adaptability of stents after embolization. Key words: Intracranial aneurysm; Stents; Endovascular treatment; Treatment outcome