Background and Purpose—In clinical trials and observational studies there is considerable
inconsistency in the use of definitions to describe delayed cerebral ischemia (DCI) after …

PURPOSE: To prospectively identify risk factors for neurologic complications related to cerebral
angiography. MATERIALS AND METHODS: A total of 2,899 consecutive cerebral digital …

Background and Purpose— The natural history of aggressive (Borden 2 and 3) cranial dural
arteriovenous fistulas (DAVFs) is not well described. Reported annual mortality and …

Object. The goal of this study was to develop a classification system for aneurysms
associated with arteriovenous malformations (AVMs) based on their anatomical and …

Background and Purpose— Patients harboring brain arteriovenous malformations (bAVMs)
are at a lifelong risk for hemorrhagic strokes, but the natural history is poorly understood. We …

Object. Cranial dural arteriovenous fistulas (DAVFs) can be classified into benign or aggressive,
based on their patterns of venous drainage. A benign condition requires the absence of …

✓ A number of classification schemes for intracranial dural arteriovenous fistulas (AVFs) have
been published that claim to predict which lesions will present in a benign or aggressive …

Background and Purpose— In the early 1980s, it was demonstrated that surgical intradural
division of the shunting vein to the medullary venous plexus cures a spinal dural …

An arteriovenous malformation is a tangle of dysplastic vessels (nidus) fed by arteries and
drained by veins without intervening capillaries, forming a high-flow, low-resistance shunt …

Background and Purpose— Prospective differentiation between reversible cerebral
vasoconstriction syndrome and central nervous system vasculitis can be challenging. We …