[Retrospective analysis of cerebrovascular disorders in patients with lesions of the major arteries of the head].

378 cases of cerebrovascular disorders with the history of apoplexy were analyzed retrospectively. It was found that initial symptoms of cerebrovascular insufficiency occurred in 7.4%, episodes of cerebrovascular failure were registered in 31.2% of cases. In most of the patients the stroke came as a debut of vascular abnormalities in the brain. They had no stages in the development of cerebrovascular pathology. It is necessary to detect asymptomatic disturbances of major cerebral vessels using modern non-invasive diagnostic techniques--ultrasonic dopplerography and duplex scanning.