Intravascular balloon embolization of a carotid-ophthalmic artery aneurysm with preservation of the parent vessel.

It is now technically possible to treat intracranial aneurysms from a trans vascular approach by balloon embolization therapy. If the aneurysm has a neck, a detachable silicone balloon can be guided into the aneurysm, inflated to occlude the neck and dome, and detached. We are thus able to exclude the aneurysm from the circulation and preserve the parent vessel. In patients who have failed standard neurosurgical approaches to clipping, this may provide an alternative therapeutic technique.