[Treatment efficacy of Solitaire stent- and LVIS stent-assisted coil embolization for intracranial wide-neck carotid aneurysm].

Objective: To compare the safety, efficacy and complications of LVIS stent-assisted coil embolization and Solitaire stent-assisted coil embolization for management of intracranial wide-neck carotid aneurysms.

Methods: We retrospectively analyzed the data of 86 patients with intracranial wide-neck carotid aneurysm treated in our hospital between June, 2016 and June, 2019. Forty-three of the patients received LVIS stent-assisted coil tamponade and the other 43 received Solitaire stentassisted coil tamponade. Arteriography was performed during, immediately after, and at 3 months after the surgery. The immediate embolization rate, surgical complications (vascular spasm, acute thrombus, coil escape, and bleeding), and the recurrence rate were compared between the two groups.

Results: In the LVIS stent group, 37 aneurysms were completely embolized, 5 were nearly fully embolized, and 1 was partially embolized, as compared with the numbers of 35, 6, and 2 in the Solitaire stent group, respectively. Surgery-related complications occurred in 5 patients in LVIS stent group and 3 in Solitaire stent group. Follow-up digital subtraction angiography (DSA) at 3 months after the operation revealed 4 recurrent aneurysms, including 1 in LVIS group and 3 in Solitaire stent group. All the patients had favorable outcomes that did not differ significantly between the two groups.

Conclusions: Stent-assisted spring coils can achieve a high rate of complete and near-total embolization for intracranial aneurysms and is associated with a low incidence of neurological complications and favorable prognosis of the patients. The embolization rate, complications and recurrence rate are comparable between LVIS stent and Solitaire stent.