Document Detail

Fetal breathing movements. Characteristics and clinical significance.
MedLine Citation:
PMID:  714319     Owner:  NLM     Status:  MEDLINE    
Ultrasonic real-time B-mode technique was used to record fetal breathing movements (FBM) in 100 consecutively examined women in late pregnancy. During the "inspiratory" phase of the FBM cycle, the diaphragm of the fetus contracts and moves in caudal direction. The diaphragmatic movement is accompanied by a retraction of the thorax with maximum inward movement of the lower sternum and by an expansion of the fetal abdomen. During "expiration" all structures return to their initial position. The incidence of FBM found in 24 pregnancies with various disorders was significantly lower than that in the 76 uncomplicated pregnancies (P less than 0.001). In 92% of the observations in which FBM were present for more than 5 minutes within 30-minute recording, this finding indicated an unaffected pregnancy at the time of the examination. No correlation was found between the FBM results and the subsequent course and outcome of the pregnancies.
K Marsál
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Obstetrics and gynecology     Volume:  52     ISSN:  0029-7844     ISO Abbreviation:  Obstet Gynecol     Publication Date:  1978 Oct 
Date Detail:
Created Date:  1979-01-15     Completed Date:  1979-01-15     Revised Date:  2009-10-26    
Medline Journal Info:
Nlm Unique ID:  0401101     Medline TA:  Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  394-401     Citation Subset:  AIM; IM    
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MeSH Terms
Diaphragm / embryology
Fetus / physiology*
Thorax / embryology

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