Fifty atherosclerotic patients with chronic disorders of the cerebral blood circulation (CDCBC) were involved in this study of both systemic hemodynamics (by diluting Evans blue) and rheoencephalographic parameters of the cerebral circulation with regard to the stage of the CDCBC. Compensated vascular-cerebral insufficiency was associated with a significant rise in the arterial pressure, acceleration of the blood flow in the hand-ear region and with an increase in the heart rate. Visual and amplitude-frequency characteristics of REGs in a compensatory stage of the CDCBC deepened only slightly; in a remitting stage they deepened significantly in the left carotid and vertebral-basal basins; in a subcompensated stage, in both basins bilaterally; and in a decompensated stage, predominantly in the carotid basin.
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