Brainstem stroke and fusiform aneurysm of veterbrobasial arteries

2007/07/16 ER consulation
M79 96.07.16 14:07 張oo 56 man (chart 4351731)
diplopia for 3 days, unsteady gait with deviation to the right side
VB fusiform aneurysm related brainstem stroke
how to manage this case?