Stenosis

Stenosis
Other namesStenoses
CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury
Pronunciation

Stenosis (from Ancient Greek στενός (stenós) 'narrow') is the abnormal narrowing of a blood vessel or other tubular organ or structure such as foramina and canals. 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).[4] The term coarctation is another synonym,[5] but is commonly used only in the context of aortic coarctation.[6][7]

Restenosis is the recurrence of stenosis after a procedure.[8]

  1. ^ OED 2nd edition, 1989, as /stɪˈnəʊsɪs/.
  2. ^ "Definition of STENOSIS". www.merriam-webster.com. Retrieved 2023-02-16.
  3. ^ "Dorlands Medical Dictionary:stenosis". www.mercksource.com. Retrieved 2010-05-05.
  4. ^ "Atherosclerosis - What Is Atherosclerosis?". National Heart, Lung, and Blood Institute. 24 March 2022.
  5. ^ "coarctation" at Dorland's Medical Dictionary
  6. ^ "Coarctation of the Aorta (CoA)". American Heart Association.
  7. ^ Groenemeijer, B. E.; Bakker, A.; Slis, H. W.; Waalewijn, R. A.; Heijmen, R. H. (July 2008). "An unexpected finding late after repair of coarctation of the aorta". Netherlands Heart Journal. 16 (7): 260–263. doi:10.1007/bf03086158. PMC 2516290. PMID 18711614.
  8. ^ Forgos, Richard N. (August 2004). "Restenosis After Angioplasty and Stenting".