Keywords: cavernous malformation, craniotomy, vascular malformation 28.1 Patient Selection Typical computed tomographic (CT) characteristics of these lesions include focal or nodular appearing lesions with mild to moderate increase in attenuation without…
Anatomic Considerations The region of the anterior communicating artery (ACoA) has an extremely variable normal anatomy ( ▶ Fig. 8.1). The complex relationships between the blood vessels, aneurysm, and other…
Indirect Bypasses for Moyamoya Disease Edward Smith Abstract Moyamoya is a progressive intracranial arteriopathy with a high risk of stroke if left untreated. Surgical revascularization markedly reduces this risk, particularly…
Patient Selection 35.1.1 Carotid Stenosis The North American Symptomatic Carotid Endarterectomy Trial and the European Carotid Surgery Trial found that carotid endarterectomy (CEA) significantly decreased the incidence of ipsilateral stroke among…
Tentorial and Posterior Fossa Dural Arteriovenous Fistulas Tyler S. Cole, Martin J. Rutkowski, Peter Nakaji, and Michael T. Lawton Abstract Dural arteriovenous fistulas (DAVFs) are abnormal connections between an artery…
Fusiform and Dolichoectatic Aneurysms Fusiform or dolichoectatic aneurysms cause symptoms in three ways: compression, ischemia, or rupture. Compared with saccular aneurysms, dolichoectatic aneurysms are more likely to cause compression or…
Carotid cavernous fistulas (CCFs) are abnormal arteriovenous shunts between the internal carotid artery (ICA) and the cavernous sinus either via direct connection with the ICA and/or its intracavernous branches or…
The retrolabyrinthine transsigmoid (RLT) and extreme lateral infrajugular transcondylar-transtubercular exposure (ELITE) are indicated for select aneurysms of the basilar artery—anterior inferior cerebellar artery (AICA) junction, lower basilar trunk, vertebrobasilar junction,…
Transverse and Sigmoid Dural Arteriovenous Fistula Johnny Wong, Rachel Tymianski, Vitor Mendes Pereira, Ivan Radovanovic, and Michael Tymianski Abstract Dural arteriovenous fistulae (DAVFs) are arteriovenous shunts located within the dural…
Aneurysm Anatomic Analysis and Indications for Surgical Intervention The gold standard for aneurysm diagnosis continues to be a complete transfemoral digital subtraction angiogram. The catheter angiogram will also show any…
