Abstract
We present two cases with ruptured blood blister-like aneurysm of the internal carotid artery treated by overlapping stent with coil embolization in their acute stage. After the first stent was deployed over the aneurysm neck, a very soft coil was delivered into the aneurysm through a jailed microcatheter. Second stent was deployed inside the first one before coil detachment. This overlapping stenting method contributed to stabilization of the first coil in the small and fragile aneurysm. Tight packing of the aneurysm was not considered necessary in both cases. Follow-up angiogram showed complete occlusion of the aneurysm. Overlapping stent and coil embolization was an effective and safe technique to avoid re-rupture and keep parent artery flow, and can be an option for the treatment of ruptured blood blister-like aneurysm of the internal carotid artery.
