| Respiratory mechanics after tube thoracostomy in rats. | |
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MedLine Citation:
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PMID: 8634686 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of the present study was to determine the mechanical respiratory profile after the insertion of a catheter into the pleural cavity of anesthetized, paralyzed, mechanically ventilated rats, thus stimulating the common use of chest tubes in clinical situations. Using the method of end-inflation occlusion during constant inspiratory flow in 7 adult Wistar rats, respiratory system, lung, and chest wall total resistance (0.353 +/- 0.058, 0.260 +/- 0.651, 0.091 +/- 0.012 (mean +/- SD) cmH2O.ml-1.s, respectively), viscous resistance (0.140 +/- 0.007, 0.100 +/- 0.007, 0.040 +/- 0.003 cmH2O.ml-1.s< respectively), and viscoelastic resistance (0.213 +/- 0.017, 0.160 +/- 0.022, 0.053 +/- 0.011 cmH2O.ml-1.s, respectively) as well as respiratory system, lung, and chest wall static elastance (4.51 +/- 0.27, 3.85 +/- 0.28, 0.66 +/- 0.12 cmH2O.ml-1, respectively), and dynamic elastance (5.72 +/- 0.24, 4.76 +/- 0.32, 0.96 +/- 0.17 cmH2O.ml-1, respectively) were not significantly modified after the insertion of a tube into the second right intercostal stage. We conclude that, under the present experimental conditions, a catheter inserted into the pleural space per se is not responsible for any alterations in respiratory mechanics. |
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Authors:
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R J Moll; A S Sousa; C F Pontes; W A Zin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.] Volume: 28 ISSN: 0100-879X ISO Abbreviation: Braz. J. Med. Biol. Res. Publication Date: 1995 Oct |
Date Detail:
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Created Date: 1996-07-05 Completed Date: 1996-07-05 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8112917 Medline TA: Braz J Med Biol Res Country: BRAZIL |
Other Details:
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Languages: eng Pagination: 1113-6 Citation Subset: IM |
Affiliation:
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Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brasil. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Airway Resistance Animals Chest Tubes Esophagus / physiology Pressure Rats Rats, Wistar Respiratory Mechanics / physiology* Thoracostomy / instrumentation, methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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