Synchronization of cerebral and peripheral blood flow at the latent stage of stroke

Olga N. Pavlova, Arkady S. Abdurashitov, Andrey V. Terskov, Oxana V. Semyachkina-Glushkovskaya and Alexey N. Pavlov
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Olga N. Pavlova: Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
Arkady S. Abdurashitov: Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
Andrey V. Terskov: Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
Oxana V. Semyachkina-Glushkovskaya: Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
Alexey N. Pavlov: Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia†Yuri Gagarin State Technical University of Saratov, Politechnicheskaya Str. 77, Saratov 410054, Russia

International Journal of Modern Physics C (IJMPC), 2020, vol. 31, issue 02, 1-12

Abstract: Synchronization between cerebral and peripheral circulation at the pre-stroke stage is discussed in newborn rats using a model of stress-induced hemorrhagic stroke. It is considered how the degree of coherence between the rhythmic components of the blood flow velocity is varied under normal and pathological conditions. It is shown that the degree of entrainment changes significantly after severe stress, provoking the transformation of normal vascular dynamics into pathological ones. Strong increase in the coherence measure is revealed, characterizing the entrainment in the dynamics of blood flow in the microvascular network surrounding the sagittal sinus and in the vein of the neck. Such changes can be considered as a precursor of the latent stage of stroke development in risk groups.

Keywords: Synchronization; rhythmic components; cerebral blood flow; stroke (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0129183120500308

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