Spetzler-Martin Grade
AVM Surgical Risk Audit
Morphology Audit
1. Nidus Diameter (Size)
2. Neurological Eloquence
Includes sensorimotor, language, or visual cortex; internal capsule; brainstem; thalamus; or hypothalamus.
3. Venous Drainage
Standardized Metric
Spetzler-Martin represents the gold standard in vascular neurosurgery for objectively quantifying the risk of focal neurological deficit.
Vascular Risk Probe
Input the size, eloquence, and venous drainage parameters to determine the Spetzler-Martin grade and surgical risk category.
Guidelines & Evidence
Verified
Last Review: 2026
Last Comprehensive Review: 2026
