Angiographic Characteristics and Endovascular Treatment of Anterior Cerebral Artery A1 Segment Aneurysms.
OBJECTIVE
This report aimed to review the angiographic characteristics and evaluate the safety and feasibility of endovascular treatment of A1 aneurysms.


METHODS
Nineteen ruptured and 13 unruptured A1 aneurysms treated endovascularly were evaluated in this study. The angiographic and clinical records were retrospectively reviewed.


RESULTS
Endovascular treatments were successfully applied in all 32 aneurysms. Conventional coiling was performed in 24 aneurysms, stent-assisted coiling in 7, and solo stenting in 1. The immediate angiographic result was 1 aneurysm in 15, two aneurysms in 10, and 3 in 7 aneurysms according to the Raymond grade. Intraoperative rupture was detected in 1 case without clinical consequence, and no other procedure-related complication occurred. Angiographic follow-up (mean, 12 months; range, 2-42 months) of 25 aneurysms showed total occlusion in 20, improvement in 1, stability in 3, and recurrence in 1. The only recurrence was detected in a case treated using conventional coiling, and it was retreated with stent-assisted coiling. Clinical follow-up (mean, 25 months; range, 6-93 months) was available in 24 of 30 patients, and the modified Rankin Scale score was 0-1 in 22 patients.


CONCLUSIONS
Endovascular treatment is technically feasible and safe for A1 aneurysms.
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China; Department of Neurology, Huadong Hospital, Fudan University, Shanghai, People's Republic of China.
Ying-Ying
YY
Zhang
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.
Yi-Bin
YB
Fang
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.
Yi-Na
YN
Wu
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.
Qi
Q
Zhang
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.
Qiang
Q
Li
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China.
Yi
Y
Xu
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China. Electronic address: ocinhqh@163.com.
Qing-Hai
QH
Huang
Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China. Electronic address: chstroke@163.com.
Jian-Min
JM
Liu
D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D057510:Endovascular Procedures / Q000295:instrumentation / Q000379:methods*; D005240:Feasibility Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000601:surgery*; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D015607:Stents; D016896:Treatment Outcome
A1 aneurysm; Anterior cerebral artery; Endovascular treatment; Stent-assisted coiling