Oscillotonometry: A simple non-invasive method of differentiating proximal arterial obstruction from distal microangiopathy in the vascular assessment of diabetics
✍ Scribed by Tovey, F I ;Karanjia, N ;Plant, G R ;Rees, M
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 412 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1357-8170
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✦ Synopsis
Abstract
In diabetic patients with ischaemic feet a frequent clinical problem is the differentiation between those with distal microangiopathy alone and those with proximal arterial inflow obstruction.
Doppler pressure measurement is of assistance but there is a significant subgroup who have proximal obstruction despite the findings of a high ankle systolic pressure. These patients have stiff arterial walls and the Doppler cuff does not compress them normally.
If oscillotonometry is performed, a low range of swing suggests an inflow obstruction whereas a high range suggests a good inflow. This differentiation enables suitable patients to be selected for angiography and possible angioplasty or bypass surgery.