Document Detail

Improved esophageal balloon technique for use in infants.
MedLine Citation:
PMID:  7440288     Owner:  NLM     Status:  MEDLINE    
Esophageal balloons of three different wall thicknesses, two different lengths, and two different diameters were made to assess which type of balloon gave the most consistent and reliable measurements of dynamic compliance (CL) and pulmonary resistance (Rp). The balloons were subjected to in vitro testing to determine their pressure-volume characteristics and working range and then used in infants to compare in vivo results from one balloon to another. The optimal balloon was found to have a length of 35--50 mm, a diameter of 7.6 mm, and a wall thickness of 0.045--0.075 mm. The use of unsuitable balloons or inappropriate volumes of air within the balloon resulted in applied pressures being under-recorded, both in vitro and in vivo, with consequent overestimation of CL and underestimation of Rp during infant lung function tests. Recommendations are made concerning the techniques of making and using esophageal balloons.
C S Beardsmore; P Helms; J Stocks; D J Hatch; M Silverman
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied physiology: respiratory, environmental and exercise physiology     Volume:  49     ISSN:  0161-7567     ISO Abbreviation:  J Appl Physiol Respir Environ Exerc Physiol     Publication Date:  1980 Oct 
Date Detail:
Created Date:  1981-02-24     Completed Date:  1981-02-24     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  7801242     Medline TA:  J Appl Physiol Respir Environ Exerc Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  735-42     Citation Subset:  IM    
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MeSH Terms
Esophagus / physiology
Lung / physiology*
Lung Compliance
Lung Volume Measurements / instrumentation,  methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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