Stenosis
| Stenosis | |
|---|---|
| Other names | Stenoses |
 | |
| CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury | |
| Pronunciation | |
Stenosis (from
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
Restenosis is the recurrence of stenosis after a procedure.[8]
Examples
Examples of vascular stenotic lesions include:
- Intermittent claudication (peripheral artery stenosis)
- Angina (coronary artery stenosis)
- transient ischaemic episodes)[9]
- Renal artery stenosis
Types
In heart valves
The types of stenoses in heart valves are:
- Pulmonary valve stenosis, which is the thickening of the pulmonary valve, therefore causing narrowing
- left heart), therefore causing narrowing
- right heart), therefore causing narrowing
- Aortic valve stenosis, which is the thickening of the aortic valve, therefore causing narrowing
Elsewhere
Stenoses/strictures of other bodily structures/organs include:
- gastricoutflow obstruction)
- Lumbar, cervical or thoracic spinal stenosis
- Subglottic stenosis (SGS)
- Tracheal stenosis
- Obstructive jaundice (biliary tractstenosis)
- Bowel obstruction
- Phimosis
- Non-communicating hydrocephalus due to aqueductal stenosis
- Stenosing tenosynovitis
- Atherosclerosis
- Esophageal stricture
- Achalasia
- Prinzmetal angina
- Vaginal stenosis
- Meatal stenosis
Causes
![[icon]](/File:Wiki_letter_w_cropped.svg){kind=small} | This section needs expansion with: user-friendly content beyond a simple list. You can help by adding to it. (October 2023) |
 | This section needs additional citations for verification. (September 2022) |
- alcohol
- atherosclerosis
- birth defects
- calcification
- diabetes
- headbanging
- iatrogenic
- infection
- inflammation
- ischemia
- neoplasm
- smoking
- ureteral
- urethral
Diagnosis
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
References
- OED2nd edition, 1989, as /stɪˈnəʊsɪs/.
- ^ "Definition of STENOSIS". www.merriam-webster.com. Retrieved 2023-02-16.
- ^ "Dorlands Medical Dictionary:stenosis". www.mercksource.com. Retrieved 2010-05-05.
- ^ "Atherosclerosis - What Is Atherosclerosis?". National Heart, Lung, and Blood Institute. 24 March 2022.
- ^ "coarctation" at Dorland's Medical Dictionary
- ^ "Coarctation of the Aorta (CoA)". American Heart Association.
- PMID 18711614.
- ^ Forgos, Richard N. (August 2004). "Restenosis After Angioplasty and Stenting".
- ^ "Carotid Artery Stenosis". The Lecturio Medical Concept Library. 15 March 2021. Retrieved 6 July 2021.
- S2CID 252622616.
External links
- "Tracheal Stenosis Audio and Video". Archived from the original on 2007-01-12.
- "Symptoms of Urethral Stricture". 20 May 2011. Archived from the original on July 17, 2016.