Risk factors

Genetic risk factors for dAVFs include those predisposing to vein thrombosis, such as coagulation abnormalities that increase the risk for occlusion of the vein sinuses.

Most frequently, dAVFs affect people in their late-middle years (roughly from 50 to 60 years old). However, dAVFs can occur in younger age groups as well, including in children.

Recent evidence does suggest that benign meningeal tumors may also be associated with the development of dAVFs.