Clinical effect of staged stent-assisted embolization after initial coiling of acute ruptured wide-neck saccular intracranial aneurysms / 中国脑血管病杂志

ABSTRACT

Objective: To evaluate the safety and efficacy of coiling in the acute phase followed by staged stenting for ruptured wide-neck saccular intracranial aneurysms. Methods: From November 2006 to December 2017, We retrospectively reviewed 58 consecutive patients with acute ruptured wide-neck saccular intracranial aneurysms(58 ruptured wide-neck saccular intracranial aneurysms) who were treated with staged stent-assisted embolization after initial coiling in the Department of Neurosurgery of NO. 971 Hospital of PLA Navy and the Department of Neurosurgery of First Hospital Affiliated to Naval Medical University. Simple coiling embolization was performed in the acute phase, and stent implantation was performed in the second stage. The immediate postoperative and follow-up angiographic results were assessed using the Raymond scale, and the outcome of clinical follow-up was assessed using the modified Rankin Scale(MRS). Results: All 58 patients(58 ruptured wide-neck saccular intracranial aneurysms) were successfully treated with staged stent-assisted embolization. The median interval of staged stenting treatment was 4. 4(4. 1, 4. 9) weeks. No aneurysm rebleeding occurred prior to the staged stenting treatment. During the treatment of staged stenting, coils were used as many as possible for embolization under the mechanical protection of stents in order to achieve complete occlusion. Immediately after stenting, angiography showed 30 aneurysms (51. 7%) with complete occlusion, 22 aneurysms (37. 9%) with neck remnant and 6aneurysms(10. 3%) with residual sac. One patient suffered in-stent thrombosis two hours after stent implantation, which was relieved with the use of tirofiban. When discharging hospital, showing that a total of 46 patients (79.3%) had MRSO-2, 8 patients(13.8%) had MRS 3 and 4 patients(6.9%) had MRS 4. Imaging follow-up ranged 6-35 months (median 16 months), showing 47 aneurysms (81. 0%) with complete occlusion, 7 aneurysms(12. 1%) with residual neck and 4 aneurysms(6. 9%) with residual sac. There was no recurrence, and the parent arteries were patent in all cases. Clinical follow-up ranged 6-36 months(median 18 months), showing that a total of 8 patients(13. 8%) had MRS 0-2 and 50 patients (86. 2%) had MRS 3. There was no new neurological dysfunction or death. Conclusion: Treatment of ruptured wide-neck saccular aneurysms with coiling in the acute phase followed by staged stenting is safe and effective.