WordNet

control consisting of a mechanical device for controlling the flow of a fluid
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
one of the paired hinged shells of certain molluscs and of brachiopods
the entire one-piece shell of a snail and certain other molluscs
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
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
(of brass instruments) having valves

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(液体・ガスなどの流れを調節する)『バルブ』,弁 / (血液の流れを調節する)弁,弁膜 / (管楽器の)バルブ / (2枚貝の)から,貝がら / 《英》真空管
(歯が)三尖の / (歯の)三尖頭

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/07/03 21:25:21」(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 S2. 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. Tricuspid stenosis
2. 心雑音の聴診 auscultation of cardiac murmurs
3. 三尖弁の心エコー評価 echocardiographic evaluation of the tricuspid valve
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. カルチノイド心疾患 carcinoid heart disease

English Journal

Catheter-based Treatment in Patients with Critical Pulmonary Stenosis or Pulmonary Atresia with Intact Ventricular Septum: A Single Institute Experience with Comparison between Patients with and without Additional Procedure for Pulmonary Flow.

Cho MJ, Ban KH, Kim MJ, Park JA, Lee HD.SourcePediatrics, Medical Research Institute of Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea.
Congenital heart disease.Congenit Heart Dis.2013 Apr 22. doi: 10.1111/chd.12063. [Epub ahead of print]
OBJECTIVES: We report a single institute experience of transcatheter pulmonary valvotomy using the soft end of a guidewire followed or not by a systemic-pulmonary shunt in patients with pulmonary atresia with intact ventricular septum (PAIVS) or critical pulmonary stenosis (CPS). In addition, we com
PMID 23602004

Feasibility of aortic valve assessment with low dose prospectively triggered adaptive systolic (PTAS) cardiac computed tomography angiography.

Lee AM, Beaudoin J, Thai WE, Wai B, Hui GC, Sidhu MS, Engel LC, Abbara S, Hoffmann U, Ghoshhajra BB.AbstractBACKGROUND: Cardiac computed tomography angiography (CTA) is feasible for aortic valve evaluation, but retrospective gated protocols required high radiation doses for aortic valve assessment. A prospectively triggered adaptive systolic (PTAS) cardiac CT protocol was recently described in arrhythmia using second-generation dual-source CT. In this study, we sought to evaluate the feasibility of PTAS CTA to assess the aortic valve at a low radiation dose.
BMC research notes.BMC Res Notes.2013 Apr 20;6(1):158. [Epub ahead of print]
BACKGROUND: Cardiac computed tomography angiography (CTA) is feasible for aortic valve evaluation, but retrospective gated protocols required high radiation doses for aortic valve assessment. A prospectively triggered adaptive systolic (PTAS) cardiac CT protocol was recently described in arrhythmia
PMID 23602055

Japanese Journal

Evaluation of the Aortic Curvature in Patients with Aortic Valve Stenosis : Differences Between Patients with Bicuspid and Those with Tricuspid Aortic Valves