Sentence examples for beat fluctuations from inspiring English sources

This algorithm, instead of removing trend with a priori mathematical formulas such as linear or polynomial functions [14], [29], could evaluate the hidden dynamics of heart beat fluctuations better [9], [10], [29].

Digital 24-hour Holter electrocardiograms were recorded and three MSsE parameters (slope 5, Area 6 20, Area 6 40) associated with the multiscale correlation and complexity of heart beat fluctuation were calculated.

We concluded that coronary artery disease is associated with decreased beat-to-beat fluctuations in AV conduction.

For this purpose we designed and employed a novel experimental animal model for the examination of arterial and cardiopulmonary baroreceptors in the dynamic closed-loop control of total peripheral resistance (TPR), and applied system identification to the analysis of beat-to-beat fluctuations in the measured signals.

SDSD, RMSSD and pNN50 evaluate beat-to-beat fluctuations.

Heart rate variability (HRV), the beat-to-beat fluctuations in the rhythm of the heart, results from the regulation of the heart by the autonomic nervous system (ANS).

Analysis of beat-to-beat fluctuations of heart rate (heart rate variability, HRV) is an established tool to non-invasively quantify cardiac autonomic function.

Respiratory sinus arrhythmia (RSA) is the beat-to-beat fluctuation in heart rate at the frequency of the respiratory cycle.

Electrode catheters allowed assessment of the effects of severe LAD stenosis on the levels of VF threshold and T-wave alternans (TWA), a beat-to-beat fluctuation in the ST-segment and T-wave, which has been shown to reflect susceptibility to malignant ventricular arrhythmias.

Most studies examining the relationship between OH and falls used single intermittent measurements of blood pressure to detect OH [ 3], and consequently did not consider important beat-to-beat blood pressure fluctuations that may contribute to OH [ 5].

Curiously, every healthy heart showed larger beat-to-beat fluctuations than the failing ones did.