Document Detail


The relationship between central carbon dioxide sensitivity and clinical features in patients with chronic airways obstruction.
MedLine Citation:
PMID:  866574     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A technique has been developed which enables respiratory motor output to be measured independently of lung mechanics. The maximum rate of change of pressure at the mouth during initial transient occlusion of the airway, (d P/dt) max., represents the rate of isometric force development by the inspiratory muscles. This technique was used to study central CO2 sensitivity in 40 patients with chronic airways obstruction. Subnormal CO2 sensitivity was associated with chronic cough and sputum production, relatively mild dyspnoea, raised arterial CO2 tension, hypoxaemia, polycythaemia and cor pulmonale. Normal CO2 sensitivity was associated with severe dyspnoea, normal blood gas tensions, and allergic features.
Authors:
A W Matthews
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Quarterly journal of medicine     Volume:  46     ISSN:  0033-5622     ISO Abbreviation:  Q. J. Med.     Publication Date:  1977 Apr 
Date Detail:
Created Date:  1977-07-29     Completed Date:  1977-07-29     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401027     Medline TA:  Q J Med     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  179-95     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aged
Airway Obstruction / physiopathology*
Carbon Dioxide* / blood
Child
Chronic Disease
Dyspnea / physiopathology
Female
Humans
Male
Middle Aged
Oxygen / blood
Partial Pressure
Pulmonary Emphysema / physiopathology
Chemical
Reg. No./Substance:
124-38-9/Carbon Dioxide; 7782-44-7/Oxygen

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


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