Cerebral revascularization: common carotid to distal middle cerebral artery bypass.

A right common carotid to distal middle cerebral artery bypass utilizing a saphenous vein graft was performed in a patient with episodic cerebral ischemia and reversible ischemic neurological deficit. The patient was relieved of his symptoms, and there was improved motor function in the left hand. Postoperative angiography revealed flow through the graft with excellent filling of the middle cerebral circulation, both retrograde and antegrade. This bypass procedure provided an immediate source of high volume blood flow and thereby provided immediate protection to the hemisphere.