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  • Title: Circadian blood pressure pattern and cardiac autonomic functions: different aspects of same pathophysiology.
    Author: Okutucu S, Karakulak UN, Kabakçı G.
    Journal: Anadolu Kardiyol Derg; 2011 Mar; 11(2):168-73. PubMed ID: 21303760.
    Abstract:
    Arterial blood pressure fluctuates with a pattern that follows a circadian rhythm, with a peak in the early morning hours and a trough during nighttime. Nocturnal dipping of arterial blood pressure is part of this normal circadian pattern, and its absence, which is called non-dipping is associated with more severe end-organ damage and increased risk of cardiovascular events, especially in hypertensive patients. Although pathologic mechanisms are still unclear, it has been suggested that non-dippers show impairment in the autonomic system functions that include abnormal parasympathetic and sympathetic activities. Several studies have examined the role of the autonomic nervous system in the non-dipping phenomenon. In this paper, we aimed to review the studies evaluating the relationship between circadian arterial blood pressure pattern and indices of cardiac autonomic functions.
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