Comparative evaluation of heart rate variability based on the data of ECG and blood pressure measurementsстатья Перевод

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Дата последнего поиска статьи во внешних источниках: 5 декабря 2018 г.

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[1] Comparative evaluation of heart rate variability based on the data of ecg and blood pressure measurements / V. O. Negulyaev, A. S. Borovik, E. V. Lukoshkova et al. // Human Physiology. — 2018. — Vol. 44, no. 3. — P. 307–313. The development of new approaches to the assessment of heart rate variability (HRV) is an important task, since HRV reflects the functioning of cardiovascular control and is affected in various diseases. The aim of the work was to evaluate the informative value of statistical and spectral HRV parameters calculated from pulse interval (PI) data of blood pressure in comparison with ones calculated from RR-interval data of ECG. In awake rats, ECG was recorded with the use of cutaneous electrodes simultaneously with blood pressure signal obtained through a catheter in the femoral artery. It was shown that the PI sequence can be used to calculate the statistical HRV indices that describe the variability of the heart rate at time intervals of the order of 1 min or longer, but statistical indices of the PI and RR-intervals may differ in the analysis of beat-to-beat variations. The power spectra of the RR-intervals and PI coincide in the low-frequency region, including the band of baroreflex cardiac rhythm oscillation. However, they can differ in the high-frequency region (at respiration frequency and above). [ DOI ]

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