Comparison and Clinical Application of Frequency Domain Methods in Analysis of Neonatal Heart Rate Time Series

2001 ◽  
Vol 29 (9) ◽  
pp. 764-774 ◽  
Author(s):  
Kevin L. Chang ◽  
Kenneth J. Monahan ◽  
M. Pamela Griffin ◽  
Douglas Lake ◽  
J. Randall Moorman
Keyword(s):  
Heart Rate ◽  
Time Series ◽  
Frequency Domain ◽  
Clinical Application ◽  
Neonatal Heart ◽  
Frequency Domain Methods ◽  
Neonatal Heart Rate

scholarly journals Maternal, fetal and neonatal heart rate and heart rate variability in Holstein cattle

2019 ◽  
Vol 39 (4) ◽  
pp. 286-291
Author(s):  
Dario A.C. Quevedo ◽  
Maria Lucia G. Lourenço ◽  
Carmen D. Bolaños ◽  
Angélica Alfonso ◽  
Carla M.V. Ulian ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Frequency Domain ◽  
High Frequency ◽  
Low Frequency ◽  
Perinatal Period ◽  
Rr Interval ◽  
Neonatal Heart ◽  
Neonatal Heart Rate ◽  
The Time Domain

ABSTRACT: The aim of this study was to describe the normal values for maternal, fetal and neonatal heart rate (HR) and heart rate variability (HRV) indexes in the time domain (standard deviation of beat-to-beat interval - SDNN; root mean square of successive beat-to-beat differences - RMSSD) and the frequency domain (low frequency - LF; high frequency - HF; relationship between low and high frequency - LF/HF) in 23 Holstein cows, 23 fetuses and 18 neonates during the perinatal period. HR and HRV were calculated by fetomaternal electrocardiography (ECG). Fetomaternal measurements were taken six times prepartum (between days 234 and 279 of pregnancy) and measurements were taken in neonates six times after calving (after birth and five times weekly). HR, time and frequency domain were analyzed. No significant changes in maternal, fetal beat-to-beat interval (RR interval) or HR were found. In maternal variables, SDNN decreased significantly from 38.08±2.6ms (day 14 before calving) to 23.7±2.5ms (day 1 after calving) (p<0.05), but the RMSSD did not change significantly. HR and RR interval of calf differed statistically from the day before delivery (163±7.5bpm; 381±24.2ms) to the day after calving (131±5bpm; 472±16.2ms). Time variables (SDNN and RMSSD) and the frequency-domain variables (LF and HF) were significantly different (p<0.05) between fetal and neonatal stages. Reductions in the values of SDNN and RMSSD can reflect a sympathetic dominance. After calving, the increase in HF and decrease in LF variables can indicate activation of the vagal nerve followed by heart and respiratory modulation.

A comparison of fetal and neonatal heart rate variability at similar post-menstrual ages

2008 ◽  
Author(s):  
Nikhil S. Padhye ◽  
M. Terese Verklan ◽  
Audrius Brazdeikis ◽  
Amber L. Williams ◽  
Asif Z. Khattak ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Neonatal Heart ◽  
Neonatal Heart Rate

Neonatal heart rate variability in type 1 diabetic pregnancy

2010 ◽  
Vol 95 (Supplement 1) ◽  
pp. Fa91-Fa92
Author(s):  
N. Russell ◽  
M. Higgins ◽  
B. Kinsley ◽  
M. Foley ◽  
F. McAuliffe
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Diabetic Pregnancy ◽  
Neonatal Heart ◽  
Neonatal Heart Rate

scholarly journals Accurate neonatal heart rate monitoring using a new wireless, cap mounted device

2020 ◽  
Vol 110 (1) ◽  
pp. 72-78 ◽  
Author(s):  
Caroline Henry ◽  
Lara Shipley ◽  
Carole Ward ◽  
Siavash Mirahmadi ◽  
Chong Liu ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Monitoring ◽  
Neonatal Heart ◽  
Neonatal Heart Rate

Fetal and Neonatal Heart Rate Monitor for Developing Countries

2012 ◽  
Vol 6 (1) ◽  
Author(s):  
Creighton R Petty ◽  
Lauren L Smith ◽  
Geoff R Russel ◽  
Brian G Rayburn ◽  
Harshad C Sanghvi ◽  
...  
Keyword(s):  
Heart Rate ◽  
Developing Countries ◽  
Heart Rate Monitor ◽  
Neonatal Heart ◽  
Neonatal Heart Rate

Heart rate variability in diabetic children: Sensitivity of the time- and frequency-domain methods

1993 ◽  
Vol 14 (3) ◽  
pp. 140-146 ◽  
Author(s):  
Ay?ehan Akinci ◽  
Alpay �eliker ◽  
Engin Baykal ◽  
Tahsin Tezi�
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Frequency Domain ◽  
Frequency Domain Methods ◽  
Diabetic Children

scholarly journals Sex Differences in Time-Domain and Frequency-Domain Heart Rate Variability Measures of Fatigued Drivers

2020 ◽  
Vol 17 (22) ◽  
pp. 8499
Author(s):  
Chao Zeng ◽  
Wenjun Wang ◽  
Chaoyang Chen ◽  
Chaofei Zhang ◽  
Bo Cheng
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Sex Differences ◽  
Frequency Domain ◽  
Time Domain ◽  
Mental States ◽  
Male And Female ◽  
Frequency Domain Methods ◽  
The Difference ◽  
Electrocardiogram Ecg

The effects of fatigue on a driver’s autonomic nervous system (ANS) were investigated through heart rate variability (HRV) measures considering the difference of sex. Electrocardiogram (ECG) data from 18 drivers were recorded during a simulator-based driving experiment. Thirteen short-term HRV measures were extracted through time-domain and frequency-domain methods. First, differences in HRV measures related to mental state (alert or fatigued) were analyzed in all subjects. Then, sex-specific changes between alert and fatigued states were investigated. Finally, sex differences between alert and fatigued states were compared. For all subjects, ten measures showed significant differences (Mann-Whitney U test, p < 0.01) between different mental states. In male and female drivers, eight and four measures, respectively, showed significant differences between different mental states. Six measures showed significant differences between males and females in an alert state, while ten measures showed significant sex differences in a fatigued state. In conclusion, fatigue impacts drivers’ ANS activity, and this impact differs by sex; more differences exist between male and female drivers’ ANS activity in a fatigued state than in an alert state.

Rhythmic organization of neonatal heart rate and its relation to atypical fetal growth

1991 ◽  
Vol 24 (6) ◽  
pp. 413-429 ◽  
Author(s):  
Philip Sanford Zeskind ◽  
Dennis M. Goff ◽  
Timothy Ray Marshall
Keyword(s):  
Heart Rate ◽  
Fetal Growth ◽  
Neonatal Heart ◽  
Neonatal Heart Rate ◽  
Rhythmic Organization

The accuracy of human senses in the detection of neonatal heart rate during standardized simulated resuscitation: Implications for delivery of care, training and technology design

Resuscitation ◽  
2013 ◽  
Vol 84 (3) ◽  
pp. 369-372 ◽  
Author(s):  
Ritu Chitkara ◽  
Anand K. Rajani ◽  
John W. Oehlert ◽  
Henry C. Lee ◽  
M.S. Epi ◽  
...  
Keyword(s):  
Heart Rate ◽  
Technology Design ◽  
Delivery Of Care ◽  
Neonatal Heart ◽  
Care Training ◽  
Neonatal Heart Rate
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