Pulmonary valve


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valve

 [valv]
a membranous fold in a canal or passage that prevents backward flow of material passing through it.
aortic valve a semilunar valve that separates the left ventricle and the aorta; it opens with end diastole, causing the second heart sound.
atrioventricular v's the cardiac valves between the right atrium and right ventricle (tricuspid valve) and the left atrium and left ventricle (mitral valve).
bicuspid valve mitral valve.
bicuspid aortic valve a congenital anomaly of the aortic valve, caused by incomplete separation of two of the three cusps; it is generally asymptomatic early in life but is predisposed to calcification and stenosis later on.
Braschi valve a one-way valve put into the inspiratory limb of a ventilator circuit in order to measure the intrinsic positive end-expiratory pressure.
cardiac v's valves that control flow of blood through and from the heart.
coronary valve a valve at the entrance of the coronary sinus into the right atrium.
flail mitral valve a mitral valve having a cusp that has lost its normal support (as in ruptured chordae tendineae) and flutters in the blood stream.
heart v's cardiac valves.
Heimlich valve a small one-way valve used for chest drainage, emptying into a flexible collection device; the valve prevents return of gases or fluids into the pleural space. The Heimlich valve is less than 13 cm (5 inches) long and facilitates patient ambulation; it can be used in many patients instead of a traditional water seal drainage system.
ileocecal valve (ileocolic valve) the valve guarding the opening between the ileum and cecum.
mitral valve the cardiac valve between the left atrium and left ventricle, usually having two cusps (anterior and posterior). Called also bicuspid valve.
Valves of the heart. The right heart pumps the venous blood into the lungs. The oxygenated blood returns from the lungs into the left atrium and is propelled by the left ventricle into the aorta. The insets show closed valves: the tricuspid valve has three leaflets, whereas the mitral valve has two leaflets. The aortic and pulmonary artery valves have three leaflets and resemble one another except for the fact that the coronary arteries originate from behind the cusps in the aorta. From Damjanov, 1996.
posterior urethral valve any of various types of congenital folds across the proximal part of the male urethra near the seminal colliculus, the most common cause of urethral obstruction in male infants.
pulmonary valve (pulmonic valve) the pocketlike cardiac valve that protects the orifice between the right ventricle and the pulmonary artery.
pyloric valve a prominent fold of mucous membrane at the pyloric orifice of the stomach.
semilunar v's the cardiac valves that have semilunar cusps; see aortic valve and pulmonary valve.
thebesian valve coronary valve.
tricuspid valve the cardiac valve guarding the opening between the right atrium and right ventricle.
valve of vein (venous v's) any of the small cusps or folds found in the tunica intima of many veins, serving to prevent backflow of blood.

pul·mo·nar·y valve

[TA]
the valve at the entrance to the pulmonary trunk from the right ventricle; it consists of semilunar cusps (valvules), which are usually arranged in the adult in right anterior, left anterior, and posterior positions; however, they are named in accordance with their embryonic derivation; thus the posteriorly located cusp is designated as the left cusp, the right anteriorly located cusp is designated the right cusp, and the left anteriorly positioned cusp is called the anterior cusp.

pul·mo·nar·y valve

(pul'mŏ-nar-ē valv) [TA]
The valve at the entrance to the pulmonary trunk from the right ventricle; it consists of semilunar cusps (valvules) that are usually arranged in the adult in right anterior, left anterior, and posterior positions; however, they are named in accordance with their embryonic derivation; the posteriorly located cusp is designated as the left cusp, the right anteriorly located cusp is designated the right cusp, and the left anteriorly positioned cusp is called the anterior cusp.

Pulmonary valve

The heart valve which is positioned between the right ventricle and the opening into the pulmonary artery.
References in periodicals archive ?
These patients were underwentmodification without using a valved extracardiac conduit or an orthotopically embedded pulmonary valve substitute.
(20) Recurrent or residual pulmonary stenosis may occur in the RVOT, at the level of the pulmonary valve or branch pulmonary arteries.
Pulmonary valve replacement after operative repair of tetralogy of Fallot: meta-analysis and meta-regression of 3,118 patients from 48 studies.
has developed and manufactured transcatheter pulmonary valve VenusP-Valve, the world's first self-expanding interventional pulmonary valve.
Absent pulmonary valve syndrome was present in 2 (0.95%) patients.
Because the tumor often involves vital cardiac structures such as the pulmonary valve (30 % of cases), radical surgery resection can be challenging (2).
The pulmonary valve is altered in 13% of the cases [11].
For echocardiographic analyses, the transducer was positioned in the 3rd intercostal space in the left cranial view for the analysis of the pulmonary valve. In the 5th intercostal space and in the left 5-chamber apical view for the analysis of the aortic valve, In the 5th intercostal space and in the left 4-chamber apical view for analysis using the modified Simpson's method.
The battling youngster was born with the life-threatening heart condition, pulmonary atresia, a malformation of the pulmonary valve.
The battling youngster was born with the life-threatening heart condition pulmonary atresia - a malformation of the pulmonary valve. Now, three generations of the Scott family - including Charlie, 67, Kelly, 42 and 18-year-old Christopher - will compete in the Great North Run to raise funds for CHUF, the Children's Heart Unit Fund.
The minor criteria were as follows: thin endomyocardial patches localised to one ventricular wall (1); restrictive flow pattern across mitral or tricuspid valves (2); pulmonary valve diastolic opening (2); diffuse thickening of the anterior mitral leaflet (1); enlarged atrium with normal-size ventricle (2); m-mode movement of the interventricular septum and flat posterior wall (1); and enhanced density of the moderator or other intraventricular bands (1).
The approval enables the treatment of adult and pediatric patients who suffer from either a narrowed pulmonary valve or moderate or greater pulmonary regurgitation caused by congenital heart disease.

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