[Ischemic stroke and the ways of compensation of cerebral circulation in patients with nonspecific aorto-arteritis with lesions of the brachiocephalic arteries].

In patients suffering from nonspecific aortoarteritis associated with impairment of the common carotid arteries, cerebral blood flow is compensated for at the expense of an increase of the volumetric blood flow in the vertebral arteries. During the first three years since the onset of the first disease symptoms, the blood content in the basin of the internal carotid arteries is reduced. Brain strokes occur most frequently within that period. They mostly develop without any preceding transitory ischemic attacks. The origin of neurological symptomatology depends to a considerable measure on the condition of the anterior and posterior communicating arteries.