Document Detail

Changes in pulmonary mechanics and gas exchange after thoracentesis on patients with inversion of a hemidiaphragm secondary to large pleural effusion.
MedLine Citation:
PMID:  7781355     Owner:  NLM     Status:  MEDLINE    
The present study was designed to test whether there was a significant improvement in pulmonary function and arterial blood oxygenation after therapeutic thoracentesis on patients with inversion of a hemidiaphragm due to pleural effusion. In 21 patients with inversion of a hemidiaphragm because of a pleural effusion, we studied the changes in pulmonary mechanics and gas exchange that occurred in 24 h after removal of 600 to 2,700 mL of fluid by thoracentesis. There was a small but significant increase in the forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) (p < 0.001). The alveolar-arterial oxygen gradient (P[A-a]O2) and partial pressure of arterial oxygen (PaO2) showed a significant increase (p < 0.001), but there was no change in partial pressure of arterial carbon dioxide (PaCO2). In the present study, all patients with a large pleural effusion had inversion of a hemidiaphragm documented by chest sonography, and that was an important factor to observe significant improvement in pulmonary mechanics and gas exchange.
J S Wang; C H Tseng
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chest     Volume:  107     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  1995 Jun 
Date Detail:
Created Date:  1995-07-19     Completed Date:  1995-07-19     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1610-4     Citation Subset:  AIM; IM    
Emergency Medicine Department (Dr. Wang), Chang-Gung Memorial Hospital, Kaohsiung, Taiwan, ROC.
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MeSH Terms
Diaphragm / physiopathology*
Forced Expiratory Volume
Middle Aged
Pleural Effusion / complications*,  physiopathology,  therapy
Pulmonary Gas Exchange*
Respiratory Mechanics*
Vital Capacity

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