Treatment of ruptured intracranial dissecting aneurysms in Hong Kong

George Kwok Chu Wong, Hoi Bun Tang, Wai Sang Poon & Simon Chun Ho Yu


OBJECTIVE: To review the experience with Onyx embolisation of cerebral arteriovenous malformation.

DESIGN: Prospective study.

SETTING: A regional neurosurgical centre in Hong Kong.

PATIENTS: Data of patients with cerebral arteriovenous malformation who underwent Onyx embolisation over a 14-month period were prospectively collected.

RESULTS: Eleven sessions of Onyx embolisation were performed in nine patients with cerebral arteriovenous malformations, seven of which had ruptured. Total occlusion was achieved in three (33%) of the patients, and subtotal occlusion (over 80% occlusion) in three out of four with Spetzler-Martin grade-III/IV malformations. One patient developed mild permanent neurological deficit.

CONCLUSION: Onyx embolisation of cerebral arteriovenous malformations is feasible in Hong Kong. Careful patient and target selection are important

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