| Fetal onset of general movements. | |
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MedLine Citation:
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PMID: 18091359 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Perinatal qualitative assessment of general movements (GMs) is a tool to evaluate the integrity of the young nervous system. The aim of this investigation was to study the emergence of GMs. Fetal onset of GMs was studied sonographically in 18 fetuses during the first trimester of uncomplicated in vitro fertilization (IVF) pregnancies in weekly assessments. The earliest motility consisting of small and simple sideways bending (SB) of head and/or rump starts at 7 wk, lasting about 1 s. Between 7 and 8.5 wk, motility differentiates further into movements in which also one or two arms or legs become active; movements are still slow, small, and in one direction, but the duration increases to a few seconds. The transition into GMs at 9-10 wk is characterized by variation in participating body parts and amplitude, speed, and direction during longer periods of time. Between 9 and 13 wk, simple and stereotyped SBs and GMs may coexist. At 9 wk, the incidence of SBs decreases (p = 0.01) and that of GMs increases (p = 0.006). The data suggest that initial simple fetal motility is generated by spinal and brainstem circuitries, and the emergence of complex and variable GMs denotes the onset of supraspinal modulation of this spinal and brainstem activity. |
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Authors:
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Annemarie B Lüchinger; Mijna Hadders-Algra; Colette M van Kan; Johanna I P de Vries |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pediatric research Volume: 63 ISSN: 0031-3998 ISO Abbreviation: Pediatr. Res. Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-01-22 Completed Date: 2008-04-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0100714 Medline TA: Pediatr Res Country: United States |
Other Details:
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Languages: eng Pagination: 191-5 Citation Subset: IM |
Affiliation:
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Department of Obstetrics and Gynaecology, VU University Medical Centre, 1007 MB, Amsterdam, The Netherlands. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Brain Stem
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embryology,
physiology* Female Fertilization in Vitro Fetal Movement* Fetus / physiology* Gestational Age Humans Kinesiology, Applied Motor Activity Movement* Nervous System / embryology Pregnancy Time Factors Ultrasonography, Prenatal |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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