Effect of forced expiration on thoracic gas volume in wheezy infants

Lanteri, C.J., Raven, J.M. and Sly, P.D. (1990) Effect of forced expiration on thoracic gas volume in wheezy infants. Pediatric Pulmonology, 9 4: 220-223. doi:10.1002/ppul.1950090406


Author Lanteri, C.J.
Raven, J.M.
Sly, P.D.
Title Effect of forced expiration on thoracic gas volume in wheezy infants
Journal name Pediatric Pulmonology   Check publisher's open access policy
ISSN 8755-6863
1099-0496
Publication date 1990
Sub-type Article (original research)
DOI 10.1002/ppul.1950090406
Volume 9
Issue 4
Start page 220
End page 223
Total pages 4
Place of publication Hoboken, NJ, United States
Publisher John Wiley & Sons
Language eng
Abstract Partial expiratory flow-volume curves are commonly used in infant pulmonary function testing. The flow measurements are volume dependent and thoracic gas volume (TGV) is often measured in conjunction with forced expiratory maneuvers. Since it is not possible to make continuous, simultaneous measurements of TGV during forced expiration, it is assumed that lung volume returns to its original value after forced expiration. To test this assumption we measured TGV using a whole body plethysmograph in 14 wheezy infants before and after a series of forced expirations produced with an inflatable jacket. Forced expiration did not cause a significant change in group mean TGV measurements. Examination of individual data did not show any systematic difference between TGV measured before and after forced expiration. These results suggest that repeated forced expirations do not alter TGV within the time scale of usual pulmonary function testing protocols.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Wed, 17 Nov 2010, 11:36:57 EST