Surgical treatment of partial extraluminal occlusion of the vertebral artery.

Twenty-three patients with insufficiency of the vertebral artery due to partial extraluminal occlusion of a segment of the first part of the vertebral artery were operated upon with postoperative symptomatic improvement. Selection of patients is dependent on angiography of the aortic arch with visualization of the vessels of the neck. There was no mortality and no significant morbidity among these patients.