Abstract
Goal. To review the literature on the problem of the influence of variability of blood pressure on the cognitive function of patients with dyscirculatory encephalopathy after suffering ischemic stroke on the background of hypertension.
 Research Methods: Bibliosemantic, Comparative and Systemic Results. In the Recommendations of the European Society of Cardiologists / European Society for Hypertension (European Approach).
 Society for Cardiology / European Society of Hypertension - ESC / ESH) 2018 for the treatment of hypertension emphasized that the study of cognitive function (CF) should be mandatory in the list of methods of examination of patients to detect the damage of target organs caused by hypertension, in order refinement of stratification of risk of cardiovascular events, namely stroke (Williams B. et al., 2018). Cognitive impairment in patients with cardiovascular disease is known to be one of the earliest and most sensitive indicators of cerebral vascular injury and is a consequence of chronic cerebral ischemia and / or recurrent acute cerebral circulation disorders. It is proved that the variability of blood pressure has a negative effect on cerebral circulation, is a predictor of chronic brain ischemia, which can result in the appearance or deepening of cognitive impairment. In the ASCOT study on the prognostic significance of variability in daily monitoring of blood pressure, intracutaneous variability, and long-term variability, it was found that visit-to-visit variability is a strong predictor of stroke and coronary events, not independent of the level.
 Conclusions. Analysis of the literature on this problem has shown the negative effect of blood pressure variability on the course of chronic brain ischemia, which exacerbates cognitive and emotional-volitional disorders in patients with hypertensive dyscirculatory encephalopathy. The peculiarities of the effect of blood pressure variability on CF in patients with brain stroke are poorly understood and need further investigation.
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