Document Detail

The validity of determinations of pulmonary wedge pressure during mechanical ventilation.
MedLine Citation:
PMID:  344008     Owner:  NLM     Status:  MEDLINE    
Changes in the mean pulmonary wedge pressure were measured during temporary disconnection from a ventilator in 29 patients to assess the effects of therapy with controlled-volume ventilation on determinations of pulmonary wedge pressure. In 16 observations performed during therapy with intermittent positive-pressure ventilation, the mean value for the pulmonary wedge pressure was the same (10.3 mm Hg) with the patients connected to or disconnected from the ventilator. Thirteen of the patients were also maintained on therapy with positive end-expiratory pressure (PEEP); the mean (+/- SD) of 17 measurements of pulmonary wedge pressure did not show a significant variation on cessation of mechanical ventilation (12.5 +/- 6.7 mm Hg vs 11.7 +/- 6.9 mm Hg; P greater than 0.05). We conclude that pulmonary wedge pressure can be measured accurately at the end of exhalation during the administration of positive-pressure ventilation with 10 cm H2O of PEEP. The suggested practice of discontinuing mechanical ventilation in order to obtain a more exact measurement is not warranted.
R Davison; M Parker; R A Harrison
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chest     Volume:  73     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  1978 Mar 
Date Detail:
Created Date:  1978-05-17     Completed Date:  1978-05-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  352-5     Citation Subset:  AIM; IM    
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MeSH Terms
Blood Pressure*
Intermittent Positive-Pressure Breathing*
Positive-Pressure Respiration*
Pulmonary Circulation*

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

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