Application of nonlinear methods to heart rate variability signal analysis

2003 ◽  
Author(s):  
Xiaobo Miao ◽  
Wei He ◽  
Hao Yang ◽  
Linghong Wang ◽  
Liang Fang
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Signal Analysis ◽  
Nonlinear Methods

Signal analysis of rhythmical discharge in cardiac preganglionic fibers and of heart rate variability

2003 ◽  
Author(s):  
G. Baselli ◽  
S. Cerutti ◽  
L.M. Finocchiaro ◽  
F. Lombardi ◽  
A. Malliani ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Signal Analysis

scholarly journals Modified Distribution Entropy as a Complexity Measure of Heart Rate Variability (HRV) Signal

Entropy ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1077
Author(s):  
Radhagayathri Udhayakumar ◽  
Chandan Karmakar ◽  
Peng Li ◽  
Xinpei Wang ◽  
Marimuthu Palaniswami
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Signal Analysis ◽  
Measurement Method ◽  
Distance Matrix ◽  
Complexity Measure ◽  
Cardiac Abnormalities ◽  
Complexity Measurement ◽  
Signal Changes ◽  
Nonlinear Feature

The complexity of a heart rate variability (HRV) signal is considered an important nonlinear feature to detect cardiac abnormalities. This work aims at explaining the physiological meaning of a recently developed complexity measurement method, namely, distribution entropy (DistEn), in the context of HRV signal analysis. We thereby propose modified distribution entropy (mDistEn) to remove the physiological discrepancy involved in the computation of DistEn. The proposed method generates a distance matrix that is devoid of over-exerted multi-lag signal changes. Restricted element selection in the distance matrix makes “mDistEn” a computationally inexpensive and physiologically more relevant complexity measure in comparison to DistEn.

scholarly journals Heart rate variability and phantom pain in male amputees: Application of linear and nonlinear methods

2013 ◽  
Vol 50 (3) ◽  
pp. 449 ◽  
Author(s):  
Elena Sarabia Cachadi�a ◽  
Pablo Granados Garc�} ◽  
S. C. Tonon Da Luz ◽  
Rebeca Goya Esteban ◽  
�scar Barquero P�rez ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Phantom Pain ◽  
Nonlinear Methods ◽  
Linear And Nonlinear

scholarly journals CHARACTERIZATION OF HEART RATE VARIABILITY DURING TOTAL VENOUS ANESTHESIA: A CASE REPORT

2018 ◽  
Vol 2 (4) ◽  
pp. 57-70
Author(s):  
Danielly Gonçalves Sombra Lima ◽  
Ageu De Oliveira Saraiva ◽  
Cicera Yolanda Dos Santos ◽  
Sebastião Messias Ribeiro Oliveira ◽  
Rafael Pires Pereira ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Poincaré Plot ◽  
Nonlinear Methods ◽  
Future Studies ◽  
The Awakening ◽  
Sympathetic Nervous ◽  
The Moment

The aim of the study was to characterize the heart rate variability in a patient with no comorbidities, submitted to buccomaxillofacial surgery under total venous anesthesia using the linear frequency and nonlinear methods in the chaos domain (Poincaré plot). Data collection was performed before, during and after the surgical procedure using a Polar V800 cardiofrequencymeter and subsequently analyzed and filtered using the Kumbios HRV 3.0 software. During propofol infusion, elevations in LF, HF, SD1 and SD2 were observed. The LF/HF ratio showed obvious changes, which were found to be maximal during extubation and submaximal during awakening under greater influence of the sympathetic nervous system. The moment of the incision has parameters similar to those of rest. Final surgery maintenance showed the lowest values of LH/HF and SD1/SD2, with lower LF and SD2 values compared to rest. During the awakening, there was a decrease in SD1 and HF, representing the moment of greatest fragility during the total venous anesthesia, being of fundamental importance future studies about their repercussions.  

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