Аннотация

Заключение
Advanced age is associated with numerous functional changes in the heart, including systolic and diastolic dysfunctions, as well as disturbances of the autonomic nervous system and cardiac electrical activity, which manifest as various types of arrhythmias. Over time, these functional alterations and electrical abnormalities lead to an increased incidence of cardiovascular diseases in the elderly. One of the promising areas in the study of the pathogenesis of hypertension is the investigation of the state and functional capacity of the autonomic nervous system. Enhanced sympathetic activity precedes the development of ventricular arrhythmias, whereas increased parasympathetic tone has a restorative effect. Impaired autonomic regulation of the cardiovascular system may result, first and foremost, from the intensification of sympatho sympathetic and sympatho-vagal reflexes. Since the autonomic nervous system performs an integrative function in ensuring adaptive processes, the analysis of heart rate variability (HRV) temporal parameters allows for the assessment of autonomic support and the overall activity of regulatory mechanisms. At present, it remains unclear whether reduced HRV is part of the mechanism responsible for increased post-infarction mortality or merely a marker of poor prognosis. As the functional capacity of the circulatory system decreases with age, the study of heart rate variability in elderly individuals with cardiovascular diseases is considered highly relevant.

Ключевые слова

heart rate variability; elderly age; CVD; CAD; CHF

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Список литературы

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