prospective interventional study. The aim is to analyse the effect of usual ongoing treatments over the microvascular cutaneous response to galvanic current application (Current induced vasodilation ; CIV) on the forearm of subjects referred for ultrasound investigations due to suspicion of peripheral artery disease. Hypothesis is that the use of aspirin (even at low dose) abolishes the response .
At admission eligible patients are proposed to participate. Written consent is signed after complete oral and written explanation of the protocol is signed. No register of non-included patients will be kept. In included patients, in parallel to the routine ultrasound investigation for which the patient is referred, microvascular investigation will be performed as explained later in arm description. Usual ongoing treatments are obtained by history and recorded. The end of the visit is the end of the participation of the subjects.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
400
A galvanic current (0.1 mA) will be applied between 2 patches on the forearm of patient and protocol was repeated at 4 minutes. Microvascular response to current application (CIV) will be recorded by laser speckle flowmetry 10 minutes later. Measurement of the value of skin blood flow (by laser speckle) at the stimulated area as compare to a non stimulated adjacent skin value taken as a reference Usual treatment will be recorded
UH Angers
Angers, France
correlation of treatments to CIV response.
Classification of drugs in drug type categories. encoding in 1 (presence) or 0 ug (absence) of the drug category in the usual treatment of the patient. Multiple regression analysis of the different drug categories as factors influencing the increase in skin blood flow after CIV.
Time frame: 10 minutes after the second period of current application
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