Heart rate variability: Highlights from hidden signals

Mucahid Yilmaz,Yusuf Cekici,Hidayet Kayancicek

doi:10.15761/jic.1000258

Abstract

Heart rate variability: Highlights from hidden signals

Highlights

It is known that an imbalanced autonomic nervous system in the form of increased sympathetic activity affects cardiac electrophysiology and leads to ventricular arrhythmias and sudden cardiac death
Yıldız M, et al investigated the effects of mobile phones on Power Spectral Density (PSD) of Heart rate variability (HRV) and detected an increase in high frequency (HF) area power (p
The heart rate variability is a considerably powerful and reliable tool of assessing the fluctuations in the autonomic nervous system that can be observed in healthy individuals or in many diseases, such as those mentioned above

Summary

Introduction

It is known that an imbalanced autonomic nervous system in the form of increased sympathetic activity affects cardiac electrophysiology and leads to ventricular arrhythmias and sudden cardiac death. Unlike PSNS, the SNS allows the body to give necessary reactions in case respiratory insufficiency or hemodynamic impairment develops or briefly to survive In such cases, the SNS elevates heart rate, blood pressure and cardiac output; causes a shift of blood from the skin and splanchnic bed to the striated muscles, expansion in the bronchi and reduction in metabolic activity [2]. Heart rate variability (HRV), which we can describe as cyclic alterations in the rate of sinus rhythm, is considered as a measure of cardiac autonomic tone and as a non-invasive indicator of the cardiorespiratory system, since it provides information about sympathetic-parasympathetic balance [6]. Linear methods contain time-based and frequency-based methods [8]

Linear methods

Frequency Domain

Findings

Conclusion