Document Detail


Effect of different levels of positive end-expiratory pressure on lung water content.
MedLine Citation:
PMID:  6749774     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To compare the effects of 2-, 5-, and 10-cmH2O positive end-expiratory pressure (PEEP) on pulmonary extravascular water volume (PEWV), pulmonary blood volume (PBV), pulmonary dry weight (PDW), and distensibility, we separately ventilated perfused dogs' lungs in situ and produced pulmonary edema with oleic acid (0.06 ml/kg). Three groups were studied: I, PEEP, 5 cmH2O in both lung; II, PEEP, 2 cmH2O in one lung and 10 cmH2O in the other; and III, PEEP, same as II, but the chest was rotated to compensate for differences in heights. The PEWV and distensibility were less (P less than 0.05) in lungs exposed to 10-cmH2O than to either 2- or 5-cmH2O PEEP. After chest rotation, the difference between 10- and 2-cmH2O PEEP on PEWV was eliminated but that on distensibility was not. We conclude that 10-cmH2O PEEP 1) decreased water content because of lung volume-induced effects on intravascular hydrostatic pressure and 2) improved distensibility by recruitment of alveoli, irrespective of PEWV.
Authors:
J A Russell; J Hoeffel; J F Murray
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of applied physiology: respiratory, environmental and exercise physiology     Volume:  53     ISSN:  0161-7567     ISO Abbreviation:  J Appl Physiol Respir Environ Exerc Physiol     Publication Date:  1982 Jul 
Date Detail:
Created Date:  1982-12-02     Completed Date:  1982-12-02     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:  9-15     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Volume
Body Water / physiology*
Dogs
Lung / pathology,  physiopathology*
Lung Compliance
Oleic Acid
Oleic Acids
Organ Size
Positive-Pressure Respiration / methods*
Pulmonary Circulation
Pulmonary Edema / chemically induced,  pathology,  physiopathology*
Grant Support
ID/Acronym/Agency:
HL-19155/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Oleic Acids; 112-80-1/Oleic Acid

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


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