Outcome of early versus late primary embolization in ruptured brain arteriovenous malformations.

Purpose: To determine whether patients with a ruptured brain arteriovenous malformation (rBAVM) would benefit from an early embolization.

Methods: rBAVM treated first by embolization between March 2002 and May 2022 were included. Embolization was defined early (Group 1) when performed within 10 days postbleeding.