Document Detail

Relationship between foot transcutaneous oxygen tension and ankle systolic blood pressure at rest and following exercise.
MedLine Citation:
PMID:  2042797     Owner:  NLM     Status:  MEDLINE    
To determine whether foot transcutaneous oxygen tension (TcPO2) and ankle systolic blood pressure (SBP) measure similar aspects of peripheral vascular occlusive disease (PVOD), the authors examined their relationship at rest and following treadmill exercise. Thirty-seven PVOD patients (mean age 69.2 +/- 0.8 years) rested supine for twenty minutes, followed by a progressive treadmill walking test at a constant speed of 2 mph. The initial grade was 0%; this increased 2% every two minutes until maximal claudication pain (n = 19) or until the occurrence of such limiting symptoms as volitional fatigue (n = 6), ST segment depression (n = 4), dyspnea (n = 3), multiple premature ventricular contractions (n = 2), and angina (n = 2). Patients then rested supine for fifteen minutes. Foot TcPO2 was recorded before, during, and after exercise, whereas ankle SBP was measured before and after exercise. At rest, a curvilinear relationship was found between foot TcPO2 and ankle SBP (foot TcPO2 = 41.89 + 0.22(ankle SBP) + 0.0005 (ankle SBP2); SEE = 9.2, R = 0.64, R2 = 0.41, p less than 0.001). In contrast, the relationship was stronger and more linear during recovery, particularly at the sixth minute (foot TcPO2) = 8.33 + 0.35 (ankle SBP); SEE = 13.6, R = 0.86, R2 = 0.73, p less than 0.001). At rest, foot TcPO2 and ankle SBP characterized different aspects of PVOD because they shared only 41% common variance. During recovery, they provided similar information because up to 73% of the variance was shared. It is concluded that foot TcPO2 should also be used to assess PVOD patients because unique information is obtained at rest and values can be recorded during exercise.
A W Gardner; J S Skinner; B W Cantwell; L K Smith; E B Diethrich
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Angiology     Volume:  42     ISSN:  0003-3197     ISO Abbreviation:  Angiology     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-07-11     Completed Date:  1991-07-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0203706     Medline TA:  Angiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  481-90     Citation Subset:  IM    
Exercise and Sport Research Institute, Arizona State University, Tempe.
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MeSH Terms
Ankle / blood supply
Blood Gas Monitoring, Transcutaneous*
Blood Pressure / physiology*
Exercise / physiology*
Exercise Test
Foot / blood supply
Intermittent Claudication / blood*,  diagnosis,  physiopathology
Rest / physiology

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

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