non-compressible vessel
Calcified artery that cannot be adequately compressed during ankle-brachial index measurement, potentially giving falsely elevated readings.
Full Definition
A non-compressible vessel refers to an artery with extensive medial calcification (typically associated with diabetes mellitus or chronic kidney disease) that cannot be adequately compressed by standard blood pressure cuff inflation during ankle-brachial index (ABI) measurement. This condition results in falsely elevated ABI readings (often >1.3) that do not accurately reflect the degree of arterial stenosis or patient symptomatology. Recognition of non-compressible vessels is crucial in vascular diagnosis as it necessitates alternative testing methods such as toe-brachial index, pulse volume recordings, or skin perfusion pressure measurements to assess arterial perfusion adequately.
Usage
Usage note: Indicate need for alternative diagnostic testing when non-compressible vessels are encountered.
In Context
- "Non-compressible vessels yielded an unreliable ABI of 1.4 in this diabetic patient." — Vascular laboratory report
- "Toe-brachial index was performed due to non-compressible vessels at the ankle level." — Diagnostic assessment