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Updated: Mar 4, 2026

Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
Published on: October 1, 2019
[AGED CARDIOHEMODYNAMICS COMPLICATED BY STROKE]
V P Nesterov1,2, M F Ballyzek3, A O Konradi2
1Sechenov Institute of Evolutionary Physiology and Biochemistry of RAS, Saint-Petersburg, Russian Federation; nesterov@iephb.ru.
Abstract:
A new method of arterial piezopulsometry allowed a 12-year study of the peculiarities of age-related changes in cardiac hemodynamic indices in an aged man after ischemic stroke. The ob-tained results enable use of these indicators as prognostic criteria of an individual organism's re-sistance to acceleration factors of aging, as well as its resistance to the development of the cardi-ovascular pathology caused by the stroke. Simultaneous dual registration of piezopulsograms al-lowed establishing a significant increase of the augmentation index of pulse pressure (AIxPP) and the velocity of the pulse wave of blood pressure propagation through the radial artery (Var) in a paralyzed right arm, compared to the left hand control (p < 0,05). Range fluctuations in the relative values of this difference can serve as an objective indicator of the functional state of a paralyzed arm of a patient during rehabilitation treatment, and a sharp decrease of this difference and its subsequent stabilization can serve as an indicator of the beginning of recovery.
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