| The effect of voluntary hyperventilation on arterial blood gases and gas exchange in patients with chronic obstructive lung disease. | |
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MedLine Citation:
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PMID: 981999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A 2 min test of voluntary hyperventilation (VHV) was performed on 19 patients with chronic obstructive lung disease (COLD) and on eight control subjects. The average decrease in PaCO2 in the patients in this test was 4.6 mmHg (11%) and the average increase in PaO2 was 12.3 mmHg (19.1%). The average decrease of PaCO2 in control subjects was 16.5 mmHg (48.6%) and the average increase in PaO2 was 38.0 mmHg (46.2%). In patients with COLD, PaCO2 changes during VHV correlated significantly with respiratory exchange ratio; the correlation with minute and alveolar ventilation and deltaVO2/deltaVE ratio during VHV was of borderline significance. PaCO2 changes during VHV did not correlate with FEV1 (percent of predicted) or FEV1/VC%. The possible mechanisms of changes in blood gas tensions during and after the end of VHV test are discussed. The VHV test seems to be useful in evaluation of patients with COLD. |
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Authors:
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J Müller; L Radwan |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Scandinavian journal of respiratory diseases Volume: 57 ISSN: 0036-5572 ISO Abbreviation: Scand J Respir Dis Publication Date: 1976 |
Date Detail:
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Created Date: 1976-12-23 Completed Date: 1976-12-23 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0055427 Medline TA: Scand J Respir Dis Country: DENMARK |
Other Details:
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Languages: eng Pagination: 129-38 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Carbon Dioxide / blood* Chronic Disease Female Forced Expiratory Volume Humans Lung Diseases, Obstructive / physiopathology* Male Maximal Voluntary Ventilation* Middle Aged Oxygen / blood* Partial Pressure Pulmonary Ventilation* Respiration* Vital Capacity |
| Chemical | |
Reg. No./Substance:
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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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