Document Detail

Skin perfusion pressure of the foot is a good substitute for toe pressure in the assessment of limb ischemia.
MedLine Citation:
PMID:  10876204     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Noninvasive measurements of limb systolic pressures are used routinely in the assessment of the severity of peripheral arterial disease, including the evaluation for critical limb ischemia. However, ankle pressures cannot be measured reliably in patients with medial calcification, which is especially common among patients with diabetes. Skin lesions on the toes or previous digital amputations may preclude the measurement of toe pressures. Measurements of skin perfusion pressure (SPP) are not subject to such limitations and were shown to be useful in the assessment of the severity of peripheral arterial disease. Because toe pressure is often used in the evaluation of severity of arterial disease and in the assessment for critical ischemia, we undertook to study whether there is a sufficient correlation between toe pressure and foot SPP that would allow the use of SPP measurements when toe pressures cannot be measured.
METHODS: Measurements were carried out in 85 limbs of 71 patients referred to the vascular laboratory for evaluation for peripheral arterial disease. Diabetes mellitus was present in 43 patients. Each patient had foot SPP and toe pressure measurements. Toe pressures measured with photoplethysmography were correlated with foot SPP measured with laser Doppler scanning.
RESULTS: There was a strong linear correlation between SPP and toe pressure (r = 0.87; P <.01). Also, significant correlation was found in both the patients with diabetes and the patients without diabetes (r = 0.85 and 0.93, respectively; P <.01 in both cases).
CONCLUSIONS: We concluded that SPP measured in the foot correlates well with toe pressure and can be substituted for toe pressure measurement in patients in whom toe pressures cannot be measured.
F W Tsai; N Tulsyan; D N Jones; N Abdel-Al; J J Castronuovo; S A Carter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of vascular surgery     Volume:  32     ISSN:  0741-5214     ISO Abbreviation:  J. Vasc. Surg.     Publication Date:  2000 Jul 
Date Detail:
Created Date:  2000-08-02     Completed Date:  2000-08-02     Revised Date:  2012-10-03    
Medline Journal Info:
Nlm Unique ID:  8407742     Medline TA:  J Vasc Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  32-6     Citation Subset:  IM    
Morristown Memorial Hospital, the University of Colorado Health Services Center, Denver, CO, USA.
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MeSH Terms
Aged, 80 and over
Diabetic Angiopathies / diagnosis,  physiopathology
Foot / blood supply*
Ischemia / diagnosis*,  physiopathology
Leg / blood supply*
Middle Aged
Regional Blood Flow
Skin / blood supply
Toes / blood supply

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

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