What grading system is used to predict the morbidity/mortality risk of surgery in arteriovenous malformations?
Spetzler-Martin.
What are the 3 categories utilized in this grading system?
Size of the nidus, the eloquence of adjacent brain and venous drainage.
Which areas are considered to be 'eloquent'?
Sensory, motor, language or visual cortex. Hypothalamus or thalamus. Internal capsule. Cerebellar peduncles. Brainstem. Deep cerebellar nuclei. The above areas can be remembered through a mnemonic: "Sally Had Ice Cream Before Dinner".
3D Reconstruction of AVM demonstrating vessels in detail.