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）』「2017/05/04 01:42:43」(JST)

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Subglottic stenosis is a congenital or acquired narrowing of the subglottic airway. Although it is relatively rare, it is the third most common congenital airway problem (after laryngomalacia and vocal cord paralysis). Subglottic stenosis can present as a life-threatening airway emergency. It is imperative that the otolaryngologist be an expert at dealing with the diagnosis and management of this disorder. Subglottic stenosis can affect both children and adults.

Subglottic stenosis can be of three forms, namely congenital subglottic stenosis, idiopathic subglottic stenosis (ISS) and acquired subglottic stenosis. As the name suggests, congenital subglottic stenosis is a birth defect. Idiopathic subglottic stenosis is a narrowing of the airway due to an unknown cause. Acquired subglottic stenosis generally follows as an after-effect of airway intubation, and in extremely rare cases as a result of gastroesophageal reflux disease (GERD).

Subglottic stenosis is graded according to the Cotton-Meyer classification system from one to four based on the severity of the blockage.

Grade 1 - <50% obstruction Grade 2 - 51-70% obstruction Grade 3 - 71-99% obstruction Grade 4 - no detectable lumen

Treatments to alleviate the symptoms of subglottic stenosis includes a daily dose of steroids such as prednisone, which reduces the inflammation of the area for better breathing. Other medications such as Methotrexate is also being tested by patients but results are pending.

Pre-surgical photographs of a 31 year old female patient with subglottic stenosis caused by the formation of scar tissue resulting from chronic gastroesophageal reflux disease.

Post-surgical photographs of a 31 year old female patient who has undergone a micro-direct laryngoscopy involving laser removal of scar tissue and balloon dilation of the airway.

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1. 喉頭の先天異常 congenital anomalies of the larynx
2. 小児における吸気時喘鳴の評価 assessment of stridor in children
3. 多発血管炎性肉芽腫症（ウェゲナー肉芽腫症）における気道病変 respiratory tract involvement in granulomatosis with polyangiitis wegeners
4. フレキシブル気管支鏡下バルーン拡張術 flexible bronchoscopy balloon dilation
5. 気道ステント airway stents

English Journal

Acoustic simulation of a patient's obstructed airway.

van der Velden WC1, van Zuijlen AH1, de Jong AT1, Lynch CT1, Hoeve LJ2, Bijl H1.
Computer methods in biomechanics and biomedical engineering.Comput Methods Biomech Biomed Engin.2016 Feb;19(2):144-58. doi: 10.1080/10255842.2014.996877. Epub 2015 Jan 8.
This research focuses on the numerical simulation of stridor; a high pitched, abnormal noise, resulting from turbulent airflow and vibrating tissue through a partially obstructed airway. Characteristics of stridor noise are used by medical doctors as indication for location and size of the obstructi
PMID 25567545

Pediatric vasculitis.

Barut K1, Sahin S, Kasapcopur O.
Current opinion in rheumatology.Curr Opin Rheumatol.2016 Jan;28(1):29-38. doi: 10.1097/BOR.0000000000000236.
PURPOSE OF REVIEW: The aim of this review is to define childhood vasculitis and to highlight new causative factors and treatment modalities under the guidance of recently published studies.RECENT FINDINGS: Childhood vasculitis is difficult to diagnose because of the wide variation in the symptoms an
PMID 26555448

Japanese Journal

声門下狭窄をきたした喉頭軟骨肉腫の1例

日本気管食道科学会会報 68(4), 301-306, 2017
NAID 130006003865

先天性声門下狭窄症に対してextended-PCTR と声門開大術を同時に施行し，一期的に気管切開から離脱した1例

日本小児外科学会雑誌 53(1), 94-99, 2017
NAID 130005242500

肺部分切除の気管挿管時に判明した声門下狭窄の1症例

麻酔 = The Japanese journa of anesthesiology : 日本麻酔科学会準機関誌 65(11), 1170-1172, 2016-11
NAID 40020995516

Related Pictures

★リンクテーブル★

リンク元	「声門下狭窄」「声門下狭窄症」

「声門下狭窄」

Subglottic stenosis
	Neck AP x-ray of patient with post-intubation subglottic stenosis, as shown by the narrowing in the tracheal lumen marked by the arrow.
Classification and external resources
ICD-10	Q31.8, J38.6
eMedicine	ped/
	[edit on Wikidata]