====== Spetzler Ponce classification ======

{{rss>https://pubmed.ncbi.nlm.nih.gov/rss/search/1PS-V0JgW4M5F2cvZdlitmJ6sQIgKk_gmLUOM0DKZ8tEHpZMY7/?limit=15&utm_campaign=pubmed-2&fc=20231204031239}}
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AVM grading and treatment (2010)

Class A

[[Spetzler-Martin AVM grading system]] 1 or 2
Microsurgical resection is preferred treatment.
8% chance on postoperative deficit (95% CI = 6-10)

Class B

[[Spetzler-Martin AVM grading system]] 3
Multimodality treatment
18% chance on postoperative deficit (95% CI = 15-22)

Class C

[[Spetzler-Martin AVM grading system]] 4-5
No treatment, with exception of recurrent hemorrhages, progressive neurological deficits, steal-related symptoms, and AVM-related aneurysms.
32% chance on postoperative deficit (95% CI = 27-38)
((Spetzler and Ponce. A 3-tier classification of cerebral arteriovenous malformations. Journal of neurosurgery (2010) [Epub ahead of print])).