Tentorial dural arteriovenous fistulae: operative strategies and microsurgical results for six types.

Abstract

Tentorial dural arteriovenous fistulae (DAVF) are rare, have a high risk of hemorrhage, often cannot be obliterated endovascularly, and frequently require microsurgical interruption of the draining vein. We differentiated these fistulae into six types and developed specific operative strategies on the basis of these types.