VA: Vertebral Artery
Medial medullary / Dejerine
Lateral medullary / Wallenberg
Vertebral artery dissection: if completely occluded, risk for recanalization with emboli -> tx with sacrifice of artery vs. anti platelet.
Vertebral artery stenosis:
Stellate Block
Subclavian Steal
Lateral medullary / Wallenberg
Vertebral artery dissection: if completely occluded, risk for recanalization with emboli -> tx with sacrifice of artery vs. anti platelet.
Vertebral artery stenosis:
Stellate Block
Subclavian Steal
V4
(Intradural) |
V4 ANEURYSM
|
V3
(C2-Dura) |
|
BOW-HUNTER'S SYNDROME
Loc: dominant VA @ C1-C2 MoA: head rotation --> mechanical compression of VA (2-2 bone spurs, fibrous bands, etc) --> vertebrobasilar insufficiency |
V2
(Foraminal) |
|
V1
(Pre-foraminal) |
|
References: Jahromi BS, Mocco J, Bang JA, Gologorsky Y, Siddiqui AH, Horowitz MB, Hopkins LN, Levy EI: Clinical and angiographic outcome after endovascular management of giant intracranial aneurysms. Neurosurgery 63, 2008.