Abstract
The ultrasonic location technique was used to measure the intima-media thickness (IMT) as well as the internal systolic diameter of and the linear blood velocity (LBV) in the cervical arteries in subjects with initial stages of hypertension. Correlation analysis elicited a temporal contingency between these parameters and daily average values of atmospheric pressure. Thus, the common carotid artery IMT tended to increase on high-pressure days. In addition, diameters of the common and internal carotid arteries and vertebral artery were narrowed and, consequently, LBV in these vessels increased. This relationship is more evident in men than women and in elderly subjects than young. These results are suggestive of a vasoconstrictive effect of high atmospheric pressure on these arteries. The relationship is not universal, as it is nonlinear for the diameter of the internal carotid artery and inverse for the external one. This implies different sensitivity of arteries to the factor under study and possible blood redistribution in the arterial tree depending on external pressure. The relationship was observed equally on the day of investigation and previous days, which points to its temporal stability.
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Original Russian Text © V.N. Melnikov, V.Ya. Polyakov, S.G. Krivoshchekov, V.I. Baranov, S.Yu. Rechkina, 2014, published in Aviakosmicheskaya i Ekologicheskaya Meditsina, 2014, Vol. 48, No. 3, pp. 51–55.
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Melnikov, V.N., Polyakov, V.Y., Krivoshchekov, S.G. et al. Structural–functional characteristics of brachiocephalic vessels in hypertensive patients under changed atmospheric pressure. Hum Physiol 42, 799–802 (2016). https://doi.org/10.1134/S0362119716070094
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DOI: https://doi.org/10.1134/S0362119716070094