Assessment of Fetal Autonomic Nervous System Activity by Fetal Magnetocardiography: Comparison of Normal Pregnancy and Intrauterine Growth Restriction. (2nd March 2011)

• Record Type: Journal Article
• Authors: Fukushima, Akimune; Nakai, Kenji; Kanasugi, Tomonobu; Terata, Miyuki; Sugiyama, Toru
• Other Names: Sinclair Marlene Academic Editor.
• Is Part Of: Journal of pregnancy. Volume 2011(2011)
• Publication Date: 2011-03-02
• Subjects: Pregnancy -- Periodicals; Pregnancy -- Complications -- Periodicals; Pregnancy; Pregnancy Complications; Pregnancy; Pregnancy -- Complications; Electronic journals; Periodicals; Periodicals; 618.2
• DOI: 10.1155/2011/218162
• Languages: English
• ISSNs: 2090-2727

Abstract

Abstract : 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 (CV RR ) and low frequency/high frequency (LF/HF) ratio. Results . The value ofCV RR 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.