Balloon embolization of a basilar bifurcation aneurysm.

With interventional neuroangiography it is possible to treat medium-sized (diameter ranging from 6 to 15 mm) saccular aneurysms while preserving the parent vessel. In this procedure a balloon is introduced, inflated, and detached into the aneurysm, occluding the sac and the neck [1-5J. Endovascular treatment of inoperable large and giant aneurysms, may require, if tolerated, the permanent balloon occlusion of the parent artery [6-9]. A patient with a medium-sized basilar bifurcation aneurysm presented with symptoms referable to subarachnoid hemorrhage and vasospasm. Therapeutic embolization of the aneurysm was successfully performed with a detachable silicone balloon.