Stenosis

(Redirected from Stenotic)

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]

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

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]

Examples

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Examples of vascular stenotic lesions include:

Types

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In heart valves

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The types of stenoses in heart valves are:

Elsewhere

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Stenoses/strictures of other bodily structures/organs include:

Causes

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Diagnosis

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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 (such as ultrasound).[10]

See also

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References

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  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 18711614.260-263&rft.date=2008-07&rft_id=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2516290#id-name=PMC&rft_id=info:pmid/18711614&rft_id=info:doi/10.1007/bf03086158&rft.aulast=Groenemeijer&rft.aufirst=B. E.&rft.au=Bakker, A.&rft.au=Slis, H. W.&rft.au=Waalewijn, R. A.&rft.au=Heijmen, R. H.&rft_id=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2516290&rfr_id=info:sid/en.wikipedia.org:Stenosis" class="Z3988">
  8. ^ Forgos, Richard N. (August 2004). "Restenosis After Angioplasty and Stenting".
  9. ^ "Carotid Artery Stenosis". The Lecturio Medical Concept Library. 15 March 2021. Retrieved 6 July 2021.
  10. ^ Takekawa, Hidehiro; Tsukui, Daisuke; Kobayasi, Saro; Suzuki, Keisuke; Hamaguchi, Hirotoshi (October 2022). "Ultrasound diagnosis of carotid artery stenosis and occlusion". Journal of Medical Ultrasonics. 49 (4): 675–687. doi:10.1007/s10396-022-01259-7. PMID 36175716. S2CID 252622616.675-687&rft.date=2022-10&rft_id=https://api.semanticscholar.org/CorpusID:252622616#id-name=S2CID&rft_id=info:pmid/36175716&rft_id=info:doi/10.1007/s10396-022-01259-7&rft.aulast=Takekawa&rft.aufirst=Hidehiro&rft.au=Tsukui, Daisuke&rft.au=Kobayasi, Saro&rft.au=Suzuki, Keisuke&rft.au=Hamaguchi, Hirotoshi&rfr_id=info:sid/en.wikipedia.org:Stenosis" class="Z3988">
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