WordNet

having three cusps or points (especially a molar tooth); "tricuspid molar"; "tricuspid valve" (同)tricuspidate
abnormal narrowing of a bodily canal or passageway (同)stricture

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(歯が)三尖の / (歯の)三尖頭

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/26 04:11:38」(JST)

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Tricuspid valve stenosis is a valvular heart disease which results in the narrowing of the orifice of the tricuspid valve of the heart. It is a relatively rare condition that causes stenosis- increased resistance to blood flow through the valve.

Causes

It is almost always caused by rheumatic fever^[1] and is generally accompanied by mitral stenosis.

Rare other causes include carcinoid syndrome, endocarditis, endomyocardial fibrosis, lupus erythematosus, right atrial myxoma and congenital tricuspid atresia.

Diagnosis

A mid diastolic murmur can be heard during auscultation caused by the blood flow through the stenotic valve. It is best heard over the left sternal border with rumbling character and tricuspid opening snap with wide splitting S1. May increase in intensity with inspiration (Carvallo's sign). The diagnosis and the severity can be assessed by echocardiography.

Treatment

Tricuspid valve stenosis itself usually doesn't require treatment. However, if there is damage to other valves in the heart as well, then surgical repair or replacement must be considered.

The treatment is usually by surgery (tricuspid valve replacement) or percutaneous balloon valvuloplasty. The resultant tricuspid regurgitation from percutaneous treatment is better tolerated than insufficiency occurring during mitral valvuloplasty

References

^ "Tricuspid Stenosis: Overview - eMedicine Cardiology". Retrieved 2009-03-06.

External links

Echocardiographic features of tricuspid stenosis

UpToDate Contents

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1. 三尖弁狭窄：臨床的特徴、診断、および経皮的三尖弁バルーン弁切開術 tricuspid stenosis clinical features diagnosis and percutaneous tricuspid balloon valvotomy
2. 三尖弁の心エコー評価 echocardiographic evaluation of the tricuspid valve
3. 心雑音の聴診 auscultation of cardiac murmurs
4. 心臓カテーテル検査で測定した弁膜疾患の血行動態 hemodynamics of valvular disorders as measured by cardiac catheterization
5. 三尖弁閉鎖不全症の病因、臨床的特徴、および評価 etiology clinical features and evaluation of tricuspid regurgitation

English Journal

Maternal smoking in pregnancy and risk for congenital malformations: results of a Danish register-based cohort study.

Leite M1, Albieri V, Kjaer SK, Jensen A.
Acta obstetricia et gynecologica Scandinavica.Acta Obstet Gynecol Scand.2014 Aug;93(8):825-34. doi: 10.1111/aogs.12433. Epub 2014 Jun 20.
OBJECTIVE: To examine the association between maternal smoking during pregnancy and risk for congenital malformations.DESIGN: Population-based prospective cohort study.SETTING: Denmark.POPULATION: A total of 838 265 singleton liveborn babies delivered in Denmark between 1997 and 2010 and registered
PMID 24861914

Long-term Survival after Isolated Tricuspid Valve Replacement.

Bevan PJ1, Haydock DA2, Kang N2.
Heart, lung & circulation.Heart Lung Circ.2014 Aug;23(8):697-702. doi: 10.1016/j.hlc.2014.02.011. Epub 2014 Mar 6.
BACKGROUND: Isolated replacement of the tricuspid valve is rare, and the decision to operate is difficult. This study reviews the in-hospital mortality and long-term survival after tricuspid valve replacement in the absence of concomitant left sided valve surgery. It identifies predictors of poor ou
PMID 24680484

Prognosis of patients with carcinoid heart disease after valvular surgery.

Manoly I1, McAnelly SL2, Sriskandarajah S2, McLaughlin KE2.
Interactive cardiovascular and thoracic surgery.Interact Cardiovasc Thorac Surg.2014 Aug;19(2):302-5. doi: 10.1093/icvts/ivu146. Epub 2014 May 8.
A best evidence topic in cardiac surgery was written according to a structured protocol. We addressed the following question: in patients who are diagnosed with carcinoid heart disease (CHD), do valvular surgeries improve their prognosis Fifty percent of the patients with clinically diagnosed carci
PMID 24812331

Japanese Journal

胎児心臓超音波スクリーニング検査で発見された心疾患症例と見逃された症例の検討

山下美智子,日高庸博,林周作,入江明美,宮城晶子,河津由紀子,稲村昇,萱谷太,石井桂介,光田信明
Pediatric Cardiology and Cardiac Surgery 30(2), 166-172, 2014
目的：胎児心臓超音波スクリーニングで発見された心疾患症例と見逃された症例を検討し，検査の効果と問題点を検証すること．方法：2008年4月～2012年3月に，当院で胎児超音波スクリーニングを受け分娩に至ったローリスク単胎妊婦を対象とした．検査陽性症例および偽陰性症例の内訳を診療録より後方視的に検討した．検査は妊娠18週前後，28週前後，36週前後の3回行った．結果：対象期間の検査のべ回数は9,983 …
NAID 130003398252

Massive Calcified Tricuspid Valve Endocarditis in a Patient with Dual Lumen Tunneled Venous Catheter

Farag Mina,Weymann Alexander,Schmack Bastian,Rauch Helmut,Karck Matthias,Szabó Gábor
Annals of Thoracic and Cardiovascular Surgery, 2013
… In our case tricuspid valve endocarditis, with severe insufficiency and stenosis due to a calcified laminar plate was found in a 57-year-old female patient undergoing dialysis due to end-stage renal disease. … We replaced the tricuspid valve with mechanical valve prosthesis and reconstructed the right atrium. …
NAID 130003377919

Which Type of Secondary Tricuspid Regurgitation Accompanying Mitral Valve Disease Should Be Surgically Treated?

Ariyoshi Tsuneo,Hashizume Kouji,Miura Takashi,Matsukuma Seiji,Nakaji Shun,Eishi Kiyoyuki
Annals of Thoracic and Cardiovascular Surgery, 2013
… Purpose: The purpose of this study was to examine changes in severity of secondary tricuspid regurgitation (TR) accompanying mitral valve disease, and to identify factors predicting failure of improvement in TR after mitral valve surgery.Methods: We studied 99 patients who had TR of grade ≥2+ preoperatively, 47 with tricuspid annuloplasty (TAP Group) performed concurrently, and 52 with mitral surgery alone (nTAP Group). …
NAID 130003377811

Related Pictures

★リンクテーブル★

リンク元	「三尖弁狭窄症」「三尖弁狭窄」
関連記事	「tricuspid」

「三尖弁狭窄症」

Tricuspid valve stenosis
Classification and external resources
Specialty	Cardiology
ICD-10	I07.0, I36.0, Q22.4
ICD-9-CM	397.0, 746.9
eMedicine	med/2315
MeSH	D014264
	[edit on Wikidata]