PT  - JOURNAL ARTICLE
AU  - Suh, S.H.
AU  - Kim, D.J.
AU  - Kim, D.I.
AU  - Kim, B.M.
AU  - Chung, T.-S.
AU  - Hong, C.K.
AU  - Jung, J.Y.
TI  - Management of Anterior Inferior Cerebellar Artery Aneurysms: Endovascular Treatment and Clinical Outcome
AID  - 10.3174/ajnr.A2360
DP  - 2011 Jan 01
TA  - American Journal of Neuroradiology
PG  - 159--164
VI  - 32
IP  - 1
4099  - http://www.ajnr.org/content/32/1/159.short
4100  - http://www.ajnr.org/content/32/1/159.full
SO  - Am. J. Neuroradiol.2011 Jan 01; 32
AB  - BACKGROUND AND PURPOSE: AICA aneurysms are rare and a challenge to treat surgically. We present our experience of the angiographic results and the clinical outcomes for 9 AICA aneurysms treated by EVT. MATERIALS AND METHODS: Between 1997 and 2009, EVT was attempted for 9 AICA aneurysms. Six patients presented with SAH, and 3 aneurysms were found incidentally. The location of the aneurysms was the proximal AICA in 7 and the distal AICA in 2. Five aneurysms originated from an AICA-PICA variant. Clinical outcomes and procedural complications were evaluated, and angiography was performed 6, 12, and 24 months after embolization to confirm recanalization of the coiled aneurysm. RESULTS: EVT was technically successful in 7 patients (78%). Surgical trapping was performed in 1 patient after failure of EVT, and another aneurysm occluded spontaneously, along with the parent artery during EVT. In 7 patients, the AICAs had good patency on postoperative angiography. Stent-assisted coiling was performed in 3 patients. Follow-up angiographies were performed in 7 patients and showed no evidence of recanalization or progressive occlusion with further thrombosis except in 1 patient. There was no evidence of aneurysm rupture during the follow-up period, and 8 patients were able to perform all usual activities (mRS score, 0–1). CONCLUSIONS: EVT may provide a feasible and safe option as an alternative, though a microsurgical option is initially considered for the management of AICA aneurysms. Further follow-up and more experience are also necessary. AICAanterior inferior cerebellar arteryAVMarteriovenous malformationBAbasilar arteryCOcomplete occlusionCxprocedural complicationEVDexternal ventricular drainageEVTendovascular therapyF/Ufollow-up periodHHHunt and Hess scaleIOincomplete occlusionmRSmodified Rankin ScaleNAnot availableOocclusionPpreservationPICAposterior inferior cerebellar arterySAHsubarachnoid hemorrhageTIAtransient ischemic accidentTxtreatmentVAvertebral artery