Quantification of the Fetal Heart Rate Variability by Spectral Analysis in Growth-Retarded Fetuses

1988 ◽  
Vol 25 (3) ◽  
pp. 186-191 ◽  
Author(s):  
G. Breborowicz ◽  
J. Moczko ◽  
J. Gadzinowski
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Heart Rate Variability

Spectral analysis of antepartum fetal heart rate variability from fetal magnetocardiogram recordings

1993 ◽  
Vol 35 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Ronald T. Wakai ◽  
Minghong Wang ◽  
Stephen L. Pedron ◽  
Deborah L. Reid ◽  
C.B. Martin
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Heart Rate Variability ◽  
Fetal Magnetocardiogram

Spectral Analysis of Fetal Heart Rate Variability in Fetuses with Supraventricular Extrasystoles

2003 ◽  
Vol 18 (4) ◽  
pp. 284-288 ◽  
Author(s):  
Carolyn Troeger ◽  
Andreas F. Schaub ◽  
Paolo Bernasconi ◽  
Irene Hösli ◽  
Wolfgang Holzgreve
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Heart Rate Variability

Quantification of the fetal heart rate variability by spectral analysis of fetal well-being and fetal distress

1994 ◽  
Vol 54 (2) ◽  
pp. 103-108 ◽  
Author(s):  
Olivier Sibony ◽  
Jean-Pierre Fouillot ◽  
Mokhtar Benaoudia ◽  
Abdelhay Benhalla ◽  
Jean-François Oury ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Fetal Distress ◽  
Well Being ◽  
Fetal Heart Rate Variability

Effects of neuromuscular blockade on fetal heart rate variability: a power spectrum analysis

1995 ◽  
Vol 79 (1) ◽  
pp. 63-65 ◽  
Author(s):  
O. Sibony ◽  
J. P. Fouillot ◽  
D. Luton ◽  
J. F. Oury ◽  
P. Blot
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Significant Proportion ◽  
Frequency Component ◽  
Fetal Movements ◽  
Fetal Heart Rate Variability ◽  
Main Components

Spectral analysis of fetal heart rate variability allows quantitative determination of the main components that affect this variability. The physiological significance of these components is unclear; however, movements appear to contribute to variability. We studied six fetuses in which immobility required for in utero magnetic resonance or invasive fetal procedures was achieved by fetal intravascular injection of curare between 32 and 36 amenorrhea weeks. For each fetus, we compared spectral density parameters of heart rate variability. After curare administration, mean spectrum power was halved. We did not observe a larger significant decrease in any (very low, low, or high) frequency band. The other parameters of spectral analysis of variability were unaltered. Fetal movements accounted for a significant proportion of human fetal heart rate variability but did not constitute a unique frequency component.

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