Spetzler Ponce classification [Neurosurgery Wiki]

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

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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])).