Extracranial - Intracranial (EC-IC) Bypass

Patients with cerebrovascular insufficiency undergo an extensive evaluation by a team of neurosurgeons, neurologists, and neuroradiologists. If the problem cannot be treated with medicine, then microsurgical extracranial-to-intracranial (EC-IC) bypass surgery is considered.

During microsurgical EC-IC bypass, dissecting the superficial temporal artery (STA) from the scalp, and "plugging it in" to a brain vessel, usually a branch of the middle cerebral artery (MCA), thus increases the blood supply to the brain. These grafts may reverse the symptoms that are occurring. They may also prevent stroke.