Document Detail

Chest wall motion in preterm infants using respiratory inductive plethysmography.
MedLine Citation:
PMID:  9387956     Owner:  NLM     Status:  MEDLINE    
Preterm infant tidal breathing may be different from that of healthy full-term infants because of various features of the premature thorax. The purpose of this project was to describe chest wall motion in the preterm infant (gestational age <37 weeks) and compare it with chest wall motion data in a group of healthy, full-term infants. We wanted to use an objective bedside method for assessment with minimal disruption to the infant. The study population consisted of 61 preterm human infants whose mean(+/-sD) postconceptional age at time of study was 35.3+/-2.1 weeks. During the study, the infants were quietly awake in a prone position. Preterm infants had initially been admitted to a level III neonatal intensive care unit for acute management and had been transferred to a step-down area, where they were in stable condition for study. Data were collected with a semiquantitatively calibrated, noninvasive respiratory inductive plethysmograph. Mean(+/-SD) phase angle was significantly greater in preterm infants than in full-term infants (60.6+/-39.8 degrees versus 12.5+/-5.0 degrees, respectively, p < or = 0.0001). The laboured breathing index was significantly greater in preterm infants than in full-term infants (1.35+/-0.35 versus 1.01+/-0.01, respectively, p = 0.001). The ribcage contribution to breathing did not differ significantly between preterm and full-term infants (25.5+/-17.7% versus 36.3+/-14.4%, respectively, p = 0.11). These results indicate a significant increase in the degree of ribcage and abdomen asynchrony in the preterm subjects compared to the full-term infants. Plethysmography provided a time-efficient and objective method of assessing chest wall motion in this fragile population.
R H Warren; S M Horan; P K Robertson
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  The European respiratory journal     Volume:  10     ISSN:  0903-1936     ISO Abbreviation:  Eur. Respir. J.     Publication Date:  1997 Oct 
Date Detail:
Created Date:  1998-01-27     Completed Date:  1998-01-27     Revised Date:  2013-05-23    
Medline Journal Info:
Nlm Unique ID:  8803460     Medline TA:  Eur Respir J     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  2295-300     Citation Subset:  IM    
Dept of Pediatrics, University of Arkansas for Medical Sciences, and Arkansas Children's Hospital, Little Rock, USA.
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MeSH Terms
Image Processing, Computer-Assisted
Infant, Newborn
Infant, Premature / physiology*
Movement / physiology
Plethysmography / instrumentation*,  methods
Reference Values
Respiration / physiology
Respiratory Mechanics / physiology*
Ribs / anatomy & histology,  physiology
Sensitivity and Specificity
Thorax / anatomy & histology,  physiology*

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