Carotid bruit
|
Carotid bruit in a gentleman with a 70% stenosis of his left carotid artery. | |
| ICD-10 | R01.1 |
|---|---|
| ICD-9 | 785.9 |
| DiseasesDB | 29151 |
A carotid bruit is a systolic sound heard over the carotid artery area during auscultation.
Associated conditions
It may occur as the result of carotid artery stenosis[1] (though some disagree)[2]; however, most carotid bruits, particularly those found in younger or asymptomatic patients, are not related to any disease and are termed "innocent carotid bruits".[3] A carotid bruit is unlikely to be heard if the stenosis occludes less than 40% of the diameter of the artery. Likewise, a stenosis of greater than 90% may not be heard, as the flow may be too low.[citation needed]
Many carotid bruits are discovered incidentally in an otherwise asymptomatic patient. The presence of a carotid bruit alone does not necessarily indicate the presence of stenosis, and the physical examination cannot be used to estimate the degree of stenosis, if present; therefore, any bruit must be evaluated by ultrasound or imaging.[4]
Pronunciation and terminology
Bruit is properly pronounced broot, rhyming with boot, but is more often pronounced as bru´e or bru-e´ in U.S. medical parlance.[5] In addition, while bruit and murmur are technically synonymous, the term bruit is generally reserved for arterial sounds in the U.S.[4]
References
Cite error: Invalid <references> tag;
parameter "group" is allowed only.
<references />, or <references group="..." />| 15px | This medical symptom article is a stub. You can help ssf by expanding it. |
- ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
- ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
- ↑ Bates' Guide to Physical Examination and History Taking, 9th Ed, Chapter 20
- ↑ 4.0 4.1 DeGowin's Diagnostic Examination, 9th Edition, Chapter 8; Richard F. LeBlond, Donald D. Brown, Richard L. DeGowin
- ↑ Stedman's Medical Dictionary - 28th Ed.
