Dural arteriovenous fistulas with direct cortical venous drainage treated with Onyx: a case series.

Unlabelled: Dural arteriovenous fistulas (DAVFs) may have aggressive symptoms, especially if there is direct cortical venous drainage. We report our preliminary experience in transarterial embolization of DAVFs with direct cortical venous drainage (CVR) using Onyx.

Method: Nine patients with DAVFs with direct cortical venous drainage were treated: eight type IV and one type III (Cognard).