STENOSIS

(Redirected from Strictures)
A 'stenosis' 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).
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 display anatomic imaging (i.e. the visible narrowing of a vessel) and/or flow phenomena (signs of the movement of the bodily fluid through the bodily structure).

Contents

Causes

Types

See also

External links

Causes

★ atherosclerosis causes stenotic lesions in arteries.

★ birth defects

★ ischaemia

★ 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

★ Restenosis

External links

★ Tracheal Stenosis Audio and Video