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zoom RSS 胎児心拍変動で幼児期の発達を予測

<<   作成日時 : 2007/11/17 23:53   >>

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胎児心拍変動で幼児期の発達を予測できるとの米国からの報告。
在胎28週以降の胎児心拍変動パターンと、2才時の知的発達・精神運動発達、2才半での言語発達との相関がみられたという。
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Fetal Heart Rate Points to Later Child Development
It gives clues to neurological progress in toddler years, study finds
-- Robert Preidt

FRIDAY, Nov. 16 (HealthDay News) -- Checking on fetal heart-rate patterns can offer insight into how a child's nervous system will develop through its toddler years, a U.S. study finds.

Johns Hopkins and U.S. National Institutes of Health researchers checked fetal heart rate and variability -- the degree to which heart rate increases and decreases within a specific time period -- six times from 20 weeks through 38 weeks of gestation in 137 women with normal pregnancies.

When the children born to the women were between 24 months and 36 months old, the researchers assessed their mental, motor and language abilities.

Greater variation in fetal heart rate at about 28 weeks gestation predicted better performance on a standardized developmental exam at age two, and better language skills at 30 months, said the study, which is published in the November/December issue of the journal Child Development.

Fetuses that had more rapid gains in heart rate variation beginning at 20 weeks gestation had quicker progression through childhood mental, motor and language milestones than children who had slower fetal gains in heart-rate variations.

According to the researchers, the findings suggest that the basis of individual differences in children's development begins during gestation.

"Further demonstration that these and other indicators of fetal functioning supply important information about the developing nervous system will enrich our understanding of the importance of the prenatal period of life," study lead author Janet DiPietro, a professor in the department of population, family and reproductive health, and associate dean for research at Johns Hopkins Bloomberg School of Public Health, said in a prepared statement.

"In turn, such knowledge can contribute to the formation of strategies focused on improving prenatal functioning in these arenas by facilitating pregnancy well-being. However, since current obstetric care already routinely evaluates heart rate patterning as an indicator of fetal distress, pregnant women do not need to seek out additional information about their baby's heart rate from their providers," DiPietro said.
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画像Child Development
Volume 78 Issue 6 Page 1788-1798, November/December 2007

Janet A. DiPietro, Marc H. Bornstein, Chun-Shin Hahn, Kathleen Costigan, Aristide Achy-Brou (2007)
Fetal Heart Rate and Variability: Stability and Prediction to Developmental Outcomes in Early Childhood
Child Development 78 (6), 1788–1798.
doi:10.1111/j.1467-8624.2007.01099.x
Prev Article Next Article
Abstract
Fetal Heart Rate and Variability: Stability and Prediction to Developmental Outcomes in Early Childhood

* Janet A. DiPietro11Johns Hopkins UniversityCorrespondence concerning this article should be addressed to Janet DiPietro, Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St., E4531, Baltimore, MD 21205. Electronic mail may be sent to jdipietr@jhsph.edu.,
* Marc H. Bornstein22National Institutes of Health and
* Chun-Shin Hahn22National Institutes of Health,
* Kathleen Costigan33Johns Hopkins Medical Institutions,
* Aristide Achy-Brou44Johns Hopkins University

*
1Johns Hopkins University
2National Institutes of Health
3Johns Hopkins Medical Institutions
4Johns Hopkins University

Abstract

Stability in cardiac indicators before birth and their utility in predicting variation in postnatal development were examined. Fetal heart rate and variability were measured longitudinally from 20 through 38 weeks gestation (n = 137) and again at age 2 (n = 79). Significant within-individual stability during the prenatal period and into childhood was demonstrated. Fetal heart rate variability at or after 28 weeks gestation and steeper developmental trajectories were significantly associated with mental and psychomotor development at 2 years (n = 82) and language ability at 2.5 years (n = 61). These data suggest that the foundations of individual differences in autonomic control originate during gestation and the developmental momentum of the fetal period continues after birth.

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