2004
DOI: 10.1111/j.1525-1594.2004.00069.x
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Power Spectral Analysis of the Heart Rate Variability of Goat Fetuses During Extrauterine Incubation

Abstract: Our aim is to determine the relationship between heart rate and behavioral states of a fetal goat using power spectral analysis. Electrocardiograms, electrocortical activity, and fetal breathing movements are recorded from 7 goat fetuses during extrauterine incubation. The heart rate power spectrum is classified into very low, low, and high frequency bands, and behavioral states are classified into low-voltage electrocortical activity with fetal breathing movements (LVB), low-voltage electrocortical activity w… Show more

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Cited by 2 publications
(2 citation statements)
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References 15 publications
(19 reference statements)
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“…All of the physiological parameters were recorded on a PCM data recorder (PC208 Ax, Sony Co., Tokyo, Japan). After analog to digital conversion, the fetal heart rate, mean blood pressure, and flow rate of the carotid artery were calculated and analyzed by a computer (Compaq Alpha Server 4100 5/466, Compaq, Hudson, USA) 10 …”
Section: Methodsmentioning
confidence: 99%
“…All of the physiological parameters were recorded on a PCM data recorder (PC208 Ax, Sony Co., Tokyo, Japan). After analog to digital conversion, the fetal heart rate, mean blood pressure, and flow rate of the carotid artery were calculated and analyzed by a computer (Compaq Alpha Server 4100 5/466, Compaq, Hudson, USA) 10 …”
Section: Methodsmentioning
confidence: 99%
“…This system can be integrated into an automatic pump speed control system to provide adequate perfusion for the left ventricular assist device recipient without excessive unloading of the ventricle. Hisashi Yonemoto et al (38) of the Juntendo University School of Medicine (Tokyo, Japan) studied the relationship between heart rate and behavioral states of a fetal goat using power spectral analysis. The power spectral peaks of fetal breathing movements can be expressed in the high frequency bands during the activation of the sympathetic nerve system and may be a useful method for evaluating the fetal condition.…”
Section: Cardiac Support and Blood Pumpsmentioning
confidence: 99%