同: TV, 三尖弁

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
(of brass instruments) having valves

PrepTutorEJDIC

television
(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）』「2014/09/14 08:46:15」(JST)

wiki en

The tricuspid valve, or right atrioventricular valve, is on the right dorsal side of the mammalian heart, between the right atrium and the right ventricle. The function of the valve is to prevent back flow of blood into the right atrium.

Structure

The normal tricuspid valve usually has three leaflets and three papillary muscles. They are connected to the papillary muscles by the chordae tendineae, which lie in the right ventricle. Tricuspid valves will not always consist of three leaflets and may also occur with two or four leaflets; the number may change during one's lifetime.^[1]

Function

Clinical significance

Tricuspid regurgitation is not uncommon in the tricuspid valve.

It is common for a valve to be infected resulting in endocarditis, in intravenous drug users.^[2]^[3] Patients who inject narcotics or other drugs intravenously may introduce infection, which will travel to the right side of the heart, most often caused by the bacteria S. aureus.^[4] In other patients without a history of intravenous exposure, endocarditis is more frequently left-sided.^[4]

The tricuspid valve can be affected by rheumatic fever, which can cause tricuspid stenosis or tricuspid insufficiency (also called tricuspid regurgitation).^[5] Some patients are born with congenital abnormalities of the tricuspid valve. Congenital apical displacement of the tricuspid valve is called Ebstein's anomaly and typically causes significant tricuspid regurgitation.

Certain carcinoid syndromes can affect the tricuspid valve by producing fibrosis due to serotonin production by those tumors.

The first endovascular tricuspid valve implant was performed by surgeons at the Cleveland Clinic.^[6]

Additional Images

Tricuspid valve.Deep dissection.

References

^ Richard Van Pragh: Cardiac anatomy in A. C. Chang et al.: Pediatric Cardiac Intensive Care, Philadelphia 1998.
^ Demin AA, Drobysheva VP, Vel'ter OIu (2000). "[Infectious endocarditis in intravenous drug abusers]". Klinicheskaia meditsina (in Russian) 78 (8): 47–51. PMID 11019526.
^ Butany J, Dev V, Leong SW, Soor GS, Thangaroopan M, Borger MA (2006). "Infective endocarditis of the tricuspid valve". Journal of cardiac surgery 21 (6): 603–4. doi:10.1111/j.1540-8191.2006.00313.x. PMID 17073968.
^ ^a ^b Mitchell RS, Kumar V, Robbins SL, Abbas AK, Fausto N (2007). Robbins Basic Pathology(8th ed.). Saunders/Elsevier. pp. 406–8. ISBN 1-4160-2973-7.
^ Tricuspid valve disease Mount Sinai Hospital, New York
^ University Circle Inc

External links

Anatomy figure: 20:07-04 at Human Anatomy Online, SUNY Downstate Medical Center
Photo of model at Waynesburg College circulation/tricuspidvalve04
Cardiac Valve Animations - Perioperative Interactive Education Group - Cardiac Valve Animations

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 三尖弁の心エコー評価 echocardiographic evaluation of the tricuspid valve
2. 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
3. 三尖弁閉鎖不全症のマネージメントおよび予後 management and prognosis of tricuspid regurgitation
4. 三尖弁のエプスタイン奇形 ebsteins anomaly of the tricuspid valve
5. 三尖弁（TV）閉鎖症 tricuspid valve tv atresia

English Journal

Aortic expansion rate in patients with dilated post-stenotic ascending aorta submitted only to aortic valve replacement long-term follow-up.

Gaudino M, Anselmi A, Morelli M, Pragliola C, Tsiopoulos V, Glieca F, Possati G.SourceDepartment of Cardiac Surgery, Catholic University, Rome.
Journal of the American College of Cardiology.J Am Coll Cardiol.2011 Aug 2;58(6):581-4.
OBJECTIVES: This study was conceived to describe the evolution of aortic dimensions in patients with moderate post-stenotic ascending aorta dilation (50 to 59 mm) submitted to aortic valve replacement (AVR) alone.BACKGROUND: The appropriate treatment of post-stenotic ascending aorta dilation has bee
PMID 21798419

Prenatal diagnosis of hypoplastic left heart syndrome in current era.

Kipps AK, Feuille C, Azakie A, Hoffman JI, Tabbutt S, Brook MM, Moon-Grady AJ.SourceDepartment of Pediatrics, Division of Cardiology, University of California, San Francisco, Benioff Children's Hospital, San Francisco, California; Pediatric Heart Center, University of California San Francisco, San Francisco, California; Fetal Treatment Center, University of California San Francisco, San Francisco, California.
The American journal of cardiology.Am J Cardiol.2011 Aug 1;108(3):421-7. Epub 2011 May 31.
We sought to evaluate the relation of a prenatal diagnosis (preDx) with morbidity and mortality during the initial hospitalization in a contemporary cohort of patients with hypoplastic left heart syndrome (HLHS). A retrospective study of patients with HLHS presenting from 1999 to 2010 was performed.
PMID 21624547

Japanese Journal

三尖弁疾患・肺動脈弁疾患の病因・病態・診断 (特集心臓弁膜症)

三神大世
綜合臨床 60(2), 191-196, 2011-02
NAID 40018706613

Epidemiological and Morphological Studies of Double-Chambered Right Ventricle in Dogs

FUKUSHIMA Ryuji,TANAKA Ryou,SUZUKI Shuji,HAMABE Rina,MACHIDA Noboru,NAKAO Shu,SAIDA Yuto,TAKASHIMA Kazuaki,MATSUMOTO Hirotaka,KOYAMA Hidekazu,HIROSE Hisashi,YAMANE Yoshihisa
Journal of Veterinary Medical Science advpub(0), 1105280529, 2011
… In dogs with DCRV, at least one of the following conditions was present concurrently: congenital or acquired tricuspid valve regurgitation (TR), ventricular septal defect, and atrial septal defect. …
NAID 130000868197

Related Pictures

★リンクテーブル★

リンク元	「三尖弁」
拡張検索	「tricuspid valve incompetence」「tricuspid valve insufficiency」
関連記事	「tricuspid」「valve」

「三尖弁」

Tricuspid valve
	Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Tricuspid valve labeled at bottom left.)
	Base of ventricles exposed by removal of the atria. (Tricuspid valve visible at bottom right.)
Latin	Valvula tricuspidalis,; valva atrioventricularis dextra
Gray's	p.531
MeSH	Tricuspid+Valve
Dorlands; /Elsevier	12843894
	Anatomical terminology