Document Detail

Continuous positive airway pressure and expiratory positive airway pressure increase functional residual capacity equivalently.
MedLine Citation:
PMID:  3514166     Owner:  NLM     Status:  MEDLINE    
The effect of continuous positive airway pressure (CPAP) and expiratory positive airway pressure (EPAP) on functional residual capacity (FRC) of ten healthy, spontaneously breathing, lightly anesthetized intubated mongrel dogs was studied. The CPAP and EPAP at 5, 10, 15, and 20 cm H2O were alternately applied to all animals. Total (lung and chest wall) compliance, esophageal pressure, airway pressure, transpulmonary pressure, control FRC, and the change in FRC (delta FRC) were measured before and after each application of CPAP and EPAP. Neither expiratory transpulmonary pressure nor delta FRC with CPAP differed significantly from that with EPAP at all levels (p greater than 0.05). These data suggest that CPAP and EPAP, when applied at the same expiratory pressure, result in an equivalent increase in FRC due to passive mechanical distention of the lungs.
J Layon; M J Banner; M J Jaeger; C V Peterson; T J Gallagher; J H Modell
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chest     Volume:  89     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  1986 Apr 
Date Detail:
Created Date:  1986-05-09     Completed Date:  1986-05-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  517-21     Citation Subset:  AIM; IM    
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MeSH Terms
Functional Residual Capacity
Lung / physiology*
Lung Compliance
Positive-Pressure Respiration*

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

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