aortic 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.

a·or·tic valve

[TA]
the valve between the left ventricle and the ascending aorta, consisting of three fibrous semilunar cusps (valvules), located in the adult in anterior, right posterior, and left posterior positions; they are named, however, in accordance with their embryonic derivation in which the anteriorly located cusp is the right cusp (above which the right coronary artery arises), the left posteriorly positioned cusp is designated as the left cusp (above which the left coronary artery arises), and the right posteriorly positioned cusp is designated as the posterior or noncoronary cusp.
Synonym(s): valva aortae [TA]

aortic valve

Anatomy A 3-leaflet valve at the base of the aorta which opens during systole–left ventricular contraction, then shuts during distole–atrial contraction preventing the backwash of oxygenated blood from the aorta into the ventricle

a·or·tic valve

(ā-ōr'tik valv) [TA]
The valve between the left ventricle and the ascending aorta, consisting of three fibrous semilunar cusps (valvules). They are named in accordance with their embryonic derivation: the anteriorly located cusp is the right cusp (above which the right coronary artery arises), the left posteriorly positioned cusp is the left cusp (above which the left coronary artery arises), and the right posteriorly positioned cusp is the posterior or noncoronary cusp.

aortic valve

The three-cusp valve at the origin of the AORTA that allows easy movement of blood from the left VENTRICLE of the heart into the aorta but prevents its backward flow.

Aortic valve

A fold in the channel leading from the aorta to the left ventricle of the heart. The aortic valve directs blood flow that has received oxygen from the lungs to the aorta which transmits blood to the rest of the body.

a·or·tic valve

(ā-ōr'tik valv) [TA]
The valve between the left ventricle and the ascending aorta, consisting of three fibrous semilunar cusps (valvules).

Patient discussion about aortic valve

Q. How does alcohol affect someone who has been diagnosed with aortic valve stenosis? My brother has been diagnosed with aortic valve stenosis and also is a smoker and does drink alcohol on the weekends. He knows that he should stop smoking but what about the effects of alcohol? Does this also contribute to his stenosis?

A. Alcohol changes blood pressure and speed of the heart- that is not a good idea if you have an Aortic stenosis. Could probably makes things worst. I would avoid alcohol… but he should ask GP.

More discussions about aortic valve
References in periodicals archive ?
Before that, in March 2018, LivaNova PLC received Conformit Europene (CE) approval for its Bicarbon aortic valves for use with a low-dose anticoagulant therapy.
In the Partner II trial, procedure cost was approximately $20,000 (3) higher with TAVR than surgical aortic valve replacement performed via open heart surgery.
The patients of aortic valve disease with associated mitral valve disease, coronary heart disease, renal dysfunction, cerebrovascular accident, and associated congenital heart diseases were excluded from the present findings.
Transcatheter aortic valve replacement, or TAVR (also called TAVI, for transcatheter aortic valve implantation), currently is approved only for patients who cannot have open-heart surgery or for whom it would be risky.
In the left ventricle outflow channel, 15 mm below the aortic valve on the muscular wall, there were three white 1-1.5 mm thick membranous semilunar valve-like structures with the sizes of 9, 7, and 5 mm, with concavities opened into the left ventricle.
Keywords * Bicuspid aortic valve * Sinus of valsalva * Aortic aneurysm
However, pioneering research from scientists at Cleveland Clinic and other centers has made it possible for more patients to undergo a minimally invasive approach known as transcatheter aortic valve replacement (TAVR).
In the initial stage of the disease, there is a focal thickening of the valves with formation of calcium nodules that begins on the aortic valve side at the subendothelial level and gradually extends to the outer or fibrous layer.
Unicuspid aortic valve (UAV) is a rare congenital anomaly with an estimated incidence of 0.025% found by echocardiography and 5.5% found during aortic valve replacement.
- US-based not-for-profit healthcare system PinnacleHealth's CardioVascular Institute has enrolled the first patient in Pennsylvania in a randomised trial studying a new heart valve to treat aortic valve disorders, the organisation said.
The detailed examination of aortic valve morphology displayed quadricuspid aortic valve (with 3 equal and small accessory cusp type B in the Hurwitz classification and location between noncoronary and right coronary cusp type II in the Nakamura classification), being a very rare congenital abnormality sometimes leading to valve incompetence treated surgically, see Photo 1 [1-5].