Gestational age related changes in cardiac dynamics of the fetal baboon

To provide insight into the maturation of neural mechanisms governing fetal heart rate and rate variability, seven chronically instrumented fetal baboons were monitored under steady state conditions between 120 and 165 days gestation (term ≈175 d). Forty records of 24 h duration (5–7 records/fetus)...

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Bibliographic Details
Published in:Early human development 1999, Vol.53 (3), p.219-237
Main Authors: Stark, Raymond I., Myers, Michael M., Daniel, Salha S., Garland, Marianne, Kim, Young Ihl
Format: Article
Language:English
Subjects:
Animals
Autonomic control
Baboon
Biological and medical sciences
Embryology: invertebrates and vertebrates. Teratology
Female
Fetus
Fundamental and applied biological sciences. Psychology
Gestational Age
Heart - embryology
Heart - physiology
Heart rate and heart rate variability
Heart Rate, Fetal
Maturation
Organogenesis. Fetal development
Organogenesis. Physiological fonctions
Papio - embryology
Poincarè plot
Pregnancy
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Summary:To provide insight into the maturation of neural mechanisms governing fetal heart rate and rate variability, seven chronically instrumented fetal baboons were monitored under steady state conditions between 120 and 165 days gestation (term ≈175 d). Forty records of 24 h duration (5–7 records/fetus) were evaluated. For each fetus, heart rate decreased with gestational age (mean±SD, r=−0.530±0.324, P
ISSN:0378-3782
1872-6232
DOI:10.1016/S0378-3782(98)00056-5