Assessment of Fetal Autonomic Nervous System Activity by Fetal Magnetocardiography: Comparison of Normal Pregnancy and Intrauterine Growth Restriction

Autor: Akimune Fukushima, Kenji Nakai, Tomonobu Kanasugi, Miyuki Terata, Toru Sugiyama
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Journal of Pregnancy, Vol 2011 (2011)
Druh dokumentu: article
ISSN: 2090-2727
2090-2735
DOI: 10.1155/2011/218162
Popis: Objective. To clarify the developmental activity of the autonomic nervous system (ANS) of the normal fetus and intrauterine growth restriction (IUGR) cases using fetal magnetocardiography (FMCG). Subjects and Methods. Normal pregnancy (n=35) and IUGR (n=12) cases at 28–39 and 32–37 weeks of gestation, respectively, were included in this study. The R-R interval variability was used to calculate the coefficient of variance (CVRR) and low frequency/high frequency (LF/HF) ratio. Results. The value of CVRR in the normal pregnancy group displayed a slight increasing trend with gestational age. However, no such trend was observed in the IUGR group. In contrast, the LF/HF ratio in both the normal pregnancy group and the IUGR group clearly increased over the gestational period; the normal group showing statistical significance. Conclusion. The development of fetal ANS activity in IUGR cases might differ from that observed in the normal pregnancy group, and this may facilitate early detection of IUGR.
Databáze: Directory of Open Access Journals
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