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Related Experiment Video

Updated: Mar 1, 2026

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Spinal arteriovenous malformations: surgical management.

David S Xu1, Hai Sun1, Robert F Spetzler1

  • 1Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA.

Handbook of Clinical Neurology
|May 30, 2017
PubMed
Summary

Spinal arteriovenous malformations (AVMs) are diverse vascular lesions causing neurologic impairment. Intramedullary and conus AVMs can be surgically resected, unlike diffuse extradural-intradural types.

Keywords:
arteriovenous fistulaarteriovenous malformationcentral nervous system vascular malformationsspine

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Area of Science:

  • Neurology
  • Vascular Surgery
  • Neurosurgery

Background:

  • Spinal arteriovenous malformations (AVMs) represent a heterogeneous group of vascular lesions.
  • These conditions are linked to substantial long-term neurological deficits and patient morbidity.

Purpose of the Study:

  • To classify spinal AVMs based on angioarchitecture and anatomy.
  • To outline treatment strategies for different spinal AVM classifications.

Main Methods:

  • Classification of spinal AVMs into three distinct categories: intramedullary, extradural-intradural, and conus.
  • Evaluation of treatment outcomes for each AVM type, focusing on surgical resection and endovascular embolization.

Main Results:

  • Extradural-intradural spinal AVMs are often incurable due to their diffuse nature.
  • Intramedullary and conus spinal AVMs demonstrate amenability to surgical resection.
  • A pial dissection technique, avoiding neural parenchyma entry, is key for safe resection.

Conclusions:

  • Spinal AVMs require tailored treatment based on their specific classification.
  • Surgical resection combined with endovascular embolization offers a viable treatment for select spinal AVMs.
  • Preserving neural tissue during surgery is crucial for favorable outcomes in spinal AVM management.