Document Detail

Maturation of body and breathing movements in 24-33 week-old fetuses threatening to deliver prematurely.
MedLine Citation:
PMID:  10367980     Owner:  NLM     Status:  MEDLINE    
Maturation of spontaneous fetal body and breathing movements of 24- to 33-week-old fetuses in 168 pregnancies threatening to deliver prematurely were examined on the basis of newborn outcome (premature compromised, premature healthy, term healthy). Maturation of fetuses in 60 low-risk pregnancies delivering as healthy full-term infants served as a normative comparison group. Each fetus was observed for 30 min; the amount of body and breathing movements were noted and an estimation of amniotic fluid volume was made. The pattern of behavioural maturation was similar for all outcome groups; with advancing gestation there was a decrease in body movements and an increase in breathing movements. Both reduced activity levels and advanced behaviours were observed in the high-risk outcome groups. The high-risk fetuses had reduced levels of body movements which increased with better outcome and, an earlier onset of increased amounts of breathing, occurring at 30 weeks in contrast to 33 weeks for the comparison group. In the presence of ruptured membranes, those high-risk fetuses who were born prematurely had less breathing compared to those who delivered at term. Similar maturation patterns among high- and low-risk outcome groups suggests normal/typical functional development in the high-risk fetal groups. The observed differential behaviours were associated with prematurity and most likely associated with events leading to premature labour.
B S Kisilevsky; S M Hains; J A Low
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Early human development     Volume:  55     ISSN:  0378-3782     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-08-10     Completed Date:  1999-08-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  25-38     Citation Subset:  IM    
Ontario Ministry of Health Career Scientist, School of Nursing, Queen's University and Kingston General Hospital, Canada.
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MeSH Terms
Amniotic Fluid / physiology
Apgar Score
Fetal Movement / physiology*
Fetus / physiology*
Gestational Age
Infant, Newborn
Infant, Premature / physiology*
Obstetric Labor, Premature
Oxygen Inhalation Therapy
Pregnancy Outcome
Pregnancy, High-Risk / physiology*
Ultrasonography, Prenatal
Videotape Recording

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