WordNet
- abnormal narrowing of a bodily canal or passageway (同)stricture
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/03/23 03:04:43」(JST)
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| Stenosis |
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CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury
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| Classification and external resources |
| MeSH |
D003251 |
A stenosis (//;[1][2] plural: stenoses, //) (from Ancient Greek στένωσις, "narrowing") 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] The term coarctation is a synonym,[4] but is commonly used only in the context of aortic coarctation.
Restenosis is the recurrence of stenosis after a procedure.
Contents
- 1 Diagnosis
- 2 Causes
- 3 Types
- 4 See also
- 5 References
- 6 External links
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.
Causes
- atherosclerosis causes stenotic lesions in arteries.
- birth defects
- diabetes
- iatrogenic, e.g. secondary to radiation therapy
- infection
- inflammation
- ischemia
- neoplasm – in such cases, the stenosis is often said to be "malignant" or "benign", although this attribute actually refers to the neoplasm itself.
- smoking
- ureteral
- urethral
- Calcification
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
The types of stenoses in heart valves are:
- Pulmonary valve stenosis, which is the thickening of the pulmonary valve, therefore causing narrowing
- Mitral stenosis, which is the thickening of the mitral valve (of the left heart), therefore causing narrowing
- Tricuspid valve stenosis, which is the thickening of the tricuspid valve (of the right heart), therefore causing narrowing
- Aortic valve stenosis, which is the thickening of the aortic valve, therefore causing narrowing
Stenoses/strictures of other bodily structures/organs include:
- Pyloric stenosis (gastric outflow obstruction)
- Lumbar, cervical or thoracic spinal stenosis
- Subglottic stenosis (SGS)
- Tracheal stenosis
- Obstructive jaundice (biliary tract stenosis)
- Bowel obstruction
- Phimosis
- Non-communicating hydrocephalus
- Stenosing tenosynovitis
See also
References
Notes
- ^ OED 2nd edition, 1989, as /stɪˈnəʊsɪs/.
- ^ Entry "stenosis" in Merriam-Webster Online Dictionary.
- ^ "Dorlands Medical Dictionary:stenosis". www.mercksource.com. Retrieved 2010-05-05.
- ^ "coarctation" at Dorland's Medical Dictionary
External links
- Tracheal Stenosis Audio and Video
UpToDate Contents
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English Journal
- Cardiovascular disease in williams syndrome.
- Collins RT 2nd.SourceArkansas Children's Hospital, 1 Children's Way, Mail Slot 512-3, Little Rock, AR 72202. rtcollins@uams.edu.
- Circulation.Circulation.2013 May 28;127(21):2125-34. doi: 10.1161/CIRCULATIONAHA.112.000064.
- PMID 23716381
- A calcified sinutubular junction: the discovery of a supravalvular aortic stenosis in an elderly woman.
- Cozijnsen L, Bakker-de Boo M, Kardux JJ, Bouma BJ.SourceDepartment of Cardiology, Gelre Hospital, Albert Schweitzerlaan 31, 7334 DZ, Apeldoorn, the Netherlands, l.cozijnsen@gelre.nl.
- Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation.Neth Heart J.2013 May 3. [Epub ahead of print]
- We report a case of a 64 year old woman with a calcified ring at the level of the sinotubular junction. Echocardiography and Computed Tomography showed a supravalvular aortic stenosis, without known associated lesions, except for the existence of an aberrant right subclavian artery. These combinatio
- PMID 23640577
Japanese Journal
- 中心静脈カテーテル確保時に椎骨動脈を誤穿刺した2症例
- ウイリアムズ症候群2例の歯科的特徴および臨床的対応
Related Links
- supravalvular above the heart valves. supravalvular aortic stenosis see aortic stenosis. supravalvular stenosis one of the forms of congenital constriction of the pulmonary trunk, which is dilated and thin-walled on the ventricular side of ...
- Supravalvular aortic stenosis Author: Doctor Patrice Bouvagnet1 Creation Date: February 2003 Scientific Editor: Doctor Jonathan Parsons 1Laboratoire de génétique moléculaire humaine, Faculté de Médecine Pharmacie Domaine ...
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- 英
- supravalvular stenosis