Key result
A portable neuECG monitoring system demonstrated a strong linear relationship with the standard PowerLab system for collecting skin sympathetic nerve activity signals (correlation coefficient 0.96).
Why the study?
Weak skin sympathetic nerve activity signals created a need for a low-noise, high-precision, and portable neuECG data acquisition and analysis system for real-time assessment of cardiac sympathetic nerve activity.
Does a newly developed portable neuECG monitoring system accurately assess cardiac sympathetic nerve activity compared to a standard system?
Does a newly developed portable neuECG monitoring system accurately assess cardiac sympathetic nerve activity compared to a standard system?
Effect estimate: correlation coefficient 0.96
A newly developed portable neuECG monitoring system provides reliable, low-noise assessment of cardiac sympathetic nerve activity, correlating highly with standard systems.
May enable ambulatory sympathetic monitoring; leaves open outcome validation before clinical use.
Cardiac sympathetic nerve activity is closely related to arrhythmia. Simultaneous non-invasive recording of electrocardiogram and skin sympathetic nerve activity (neuECG) is a new method for sympathetic nervous system assessment. This study presented a data acquisition and analysis system based on neuECG for real-time assessment of cardiac sympathetic nerve activity. Owing to weak skin sympathetic nerve activity (SKNA) signals, signal-acquisition equipment is designed, which is characteristics of low-noise, high-precision and portable. Through a series of experiment, the practicality and reliability of this system are verified. Results show that there are good linear relationships between SKNA signals collected by the proposed system and the normal system (PowerLab), the correlation coefficient is 0.96. Compared with the main neuECG monitoring systems, the proposed system has advantages such as smaller volume and much lower background noise. The system realized the effective and portable evaluation of the cardiac sympathetic activity, in order to identify the risk of arrhythmia as soon as possible.
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Xing et al. (2020) studied Arrhythmia. Portable neuECG monitoring system vs. PowerLab system was evaluated on Correlation of skin sympathetic nerve activity (SKNA) signals (correlation coefficient 0.96). A portable neuECG monitoring system demonstrated a strong linear relationship with the standard PowerLab system for collecting skin sympathetic nerve activity signals (correlation coefficient 0.96).
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