58 patients with ischemic stroke were examined (29 young people — the main group and 29 middle-aged people — control group). Among the examined young patients, cardio embolic subtype of stroke prevailed (66 %), and among middle-aged patients was observed in 10 %. The athe rothrombotic subtype of stroke prevailed in middle-aged people (69 %), and among young people — 24 %. The lacunar subtype of stroke in young people was 3 %, and in middle-aged people — 21 %. Patients of young had such subtypes of strokes as hemodyna mic and hemorheological, which respectively equaled 3 %. In middle age these subtypes of strokes were not observed among the examined patients. In young people the proportion of vascular pools with ische mic stroke was: vertebrobasilar — 41 %, carotid prevailed to some extend — 59 %. In middle-aged people the proportion of strokes prevailed in the carotid pool — 64 %, in the vertebrobasilar it was 29 %. Middle-aged people also had a “combined stroke” (stroke that occurred in several pools at once), it amounted to 7 %.

As a result, Doppler study of cerebral vessels proved that in young people linear velocity in the right middle cerebral artery was authentically higher compared with middle-aged patients. At the same time, the linear velocity in middle-aged patients was statistically greater in the left vertebral artery.