Recurrence of initial angiographic occlusion in intracranial dural arteriovenous fistulas

DAVF recurrence can be classified as in situ recurrence and recurrence at other sites, both of which are closely linked to unresolved venous hypertension and the previously masked portion of the fistula. Risk factors for recurrence included age younger than 45 years, a transverse-sigmoid sinus location, multiple fistulae, pial arterial supply, and venous congestion. All patients with cured DAVFs, particularly those with identified risk factors, were advised to undergo angiographic follow-up beyond 1 year.