Spectral analysis of fetal heart rate in flat recordings.
Early Hum Dev
; 41(3): 215-20, 1995 Apr 28.
Article
em En
| MEDLINE
| ID: mdl-7635073
ABSTRACT
Flat heart rate recordings may be observed in different fetal states such as chronic distress and sleep. Their visual analysis do not allow the distinction between these two states. We used spectral analysis to study the heart rate patterns in 25 fetuses. Two significant (P < 5 x 10(-5)) groups were apparent from the determination of the position of the maximum energy peak (PMEP) in the high-frequency band (0.20-0.50 Hz) a PMEP at about 0.20 Hz (group 1), and another around 0.30 Hz (group 2). The two groups did not differ in spectral density (SD). The outcome of neonates showed that group 1 fetuses made good progress and produced healthy neonates; whereas group 2 comprised cases of chronic fetal distress, or even death in utero, and neonatal distress. The significance of this difference in PMEP between fetal heart rate patterns in chronic distress and sleep is unclear. Studies combining the assessment of fetal movements and the determination of PMEP are planned.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Frequência Cardíaca Fetal
Limite:
Female
/
Humans
/
Newborn
/
Pregnancy
Idioma:
En
Revista:
Early Hum Dev
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
França