Document Detail

Transcutaneous oxygen monitoring during exercise stress testing.
MedLine Citation:
PMID:  7416579     Owner:  NLM     Status:  MEDLINE    
Transcutaneous oxygen tension (tcPO2) was compared with simultaneous arterial oxygen tension (PaO2) in 3 normal young adults and 4 pediatric lung disease patients at rest and during exercise to assess the usefulness of tcPO2 monitoring during exercise stress testing. At rest, the regression coefficient of tcPO2 on PaO2 was 0.78 +/- 0.03 (SEM) (r = 0.924; P < 0.0005). During exercise, the regression coefficient of tcPO2 on PaO2 was 0.88 +/- 0.02 (r = 0.958; P < 0.0005), indicating that tcPO2 approximates PaO2 equally well at rest and during exercise. After a step change in inspired oxygen concentration (FIO2) from 0.21 to 0.17, there was no significant difference in the tcPO2 time constant at rest (66.2 +/- 8.5 s) and during exercise (73.0 +/- 3.1 s). Neither PaO2 nor tcPO2 fell in normal subjects during graded exercise stress testing. However, in 3 of 4 pediatric lung disease patients, there were decreases in both PaO2 (40.7 +/- 11.6 Hg) and tcPO2 (28.7 +/- 10.0 mm Hg) during 7 exercise stress tests. These results indicate that tcPO2 approximates PaO2 equally well at rest and during exercise.
T Schonfeld; C W Sargent; D Bautista; M A Walters; M H O'Neal; A C Platzker; T G Keens
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American review of respiratory disease     Volume:  121     ISSN:  0003-0805     ISO Abbreviation:  Am. Rev. Respir. Dis.     Publication Date:  1980 Mar 
Date Detail:
Created Date:  1980-11-25     Completed Date:  1980-11-25     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0370523     Medline TA:  Am Rev Respir Dis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  457-62     Citation Subset:  AIM; IM    
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MeSH Terms
Lung Diseases / blood
Oxygen / blood*,  metabolism
Physical Exertion*
Respiratory Function Tests / methods*
Skin / blood supply,  metabolism*
Reg. No./Substance:

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