Endovascular Retreatment of Cerebral Aneurysms Previously Treated with Endovascular Embolization.

 Recurrence of previously-coiled cerebral aneurysms is significantly affected by aneurysm size, use of stent and degree of immediate occlusion. Endovascular retreatment with balloon-or stent-assisted techniques or with covered stents can be safe and effective for recurrent cerebral aneurysms.