STENOTIC - 2 reference results
A stenosis (plural: stenoses; from Ancient Greek στένωσις, "narrowing") is an abnormal narrowing in a blood vessel or other tubular organ or structure.
It is also sometimes called a "stricture" (as in urethral stricture).
The term "coarctation" is synonymous, but is only commonly used in the context of aortic coarctation.
Diagnosis
Stenoses of the vascular type are often associated with a noise (bruit) resulting from turbulent flow over the narrowed blood vessel. This bruit can be made audible by a stethoscope. Other, more reliable methods of diagnosing a stenosis are imaging methods including ultrasound, Magnetic Resonance Imaging/Magnetic Resonance Angiography, Computed Tomography/CT-Angiography which combine anatomic imaging (i.e. the visible narrowing of a vessel) with the display of flow phenomena (visualization of the movement of the bodily fluid through the bodily structure).Causes
- atherosclerosis causes stenotic lesions in arteries.
- birth defects
- ischemia
- infection
- neoplasm
- inflammation
- iatrogenic, e.g. secondary to radiation therapy
Types
The resulting syndrome depends on the structure affected.Examples of vascular stenotic lesions include:
- Intermittent claudication (peripheral artery stenosis)
- Angina (coronary artery stenosis)
- Carotid artery stenosis which predispose to (strokes and transient ischaemic episodes)
- Renal artery stenosis
Stenoses/strictures of other bodily structures/organs include:
- Pyloric stenosis (gastric outflow obstruction)
- Obstructive jaundice (biliary tract stenosis)
- Bowel obstruction
- Phimosis
- Hydrocephalus
- Stenosing tenosynovitis
- Spinal stenosis
- Subglottic stenosis (SGS)
See also
References
External links
Wikipedia, the free encyclopedia © 2001-2006 Wikipedia contributors (Disclaimer)
This article is licensed under the GNU Free Documentation License.
Last updated on Monday October 06, 2008 at 16:16:38 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
This article is licensed under the GNU Free Documentation License.
Last updated on Monday October 06, 2008 at 16:16:38 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
Copyright © 2009, Dictionary.com, LLC. All rights reserved.