Stenosis

From Wikipedia, the free encyclopedia
  (Redirected from Stenotic)
Jump to navigation Jump to search
Stenosis
Synonyms Stenoses
Bronchial stenosis CT.JPG
CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury
Pronunciation
Classification and external resources
MeSH D003251

A stenosis (from Ancient Greek στενός, "narrow") 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).[3]

Stricture as a term is usually used when narrowing is caused by contraction of smooth muscle (e.g. achalasia, prinzmetal angina); stenosis is usually used when narrowing is caused by lesion that reduces the space of lumen (e.g. atherosclerosis).[citation needed] The term coarctation is another synonym,[4] but is commonly used only in the context of aortic coarctation.

Restenosis is the recurrence of stenosis after a procedure.

Diagnosis[edit]

Stenoses of the vascular type are often associated with unusual blood sounds resulting from turbulent flow over the narrowed blood vessel. This sound can be made audible by a stethoscope, but diagnosis is generally made or confirmed with some form of medical imaging.

Causes[edit]

Types[edit]

The resulting syndrome depends on the structure affected.

Examples of vascular stenotic lesions include:

The types of stenoses in heart valves are:

Stenoses/strictures of other bodily structures/organs include:

See also[edit]

References[edit]

Notes

  1. ^ OED 2nd edition, 1989, as /stɪˈnəʊsɪs/.
  2. ^ Entry "stenosis" in Merriam-Webster Online Dictionary.
  3. ^ "Dorlands Medical Dictionary:stenosis". www.mercksource.com. Retrieved 2010-05-05.
  4. ^ "coarctation" at Dorland's Medical Dictionary

External links[edit]