The aortic valve is one of the valves of the heart. It lies between the left ventricle and the aorta.
Morphology
The aortic valve has three cusps. These cusps are half moon shaped hence also called aortic semilunar valve. Each cusp has a small swelling in the center called the nodule. Dilatation of the wall of the aorta opposite these cusps is called aortic sinus. When the aortic valve is open, the normal size of the
orifice is 3-4 cm².
Function & Physiology
During ventricular
systole,
pressure rises in the left ventricle. When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing
blood to exit the left ventricle into the aorta. When ventricular systole ends, pressure in the left ventricle rapidly drops. When the pressure in the left ventricle decreases, the aortic pressure forces the aortic valve to close. The aortic sinuses help in closure of the valve by creating backflow eddies. The closure of the aortic valve contributes the A
2 component of the second
heart sound (S
2).
More on
[ Aortic valve ]
Chronic Illness
Aortic Valve - Twitter SearchRT @jamesurquhart: Time for my annual echocardiogram, & a chance to see more crazy pictures of my messed up aortic valve < Note to self.. ;)Beaker (Christofer Hoff) Thu, 07 Jan 2010 15:35:33 -0000
RT @jamesurquhart: Time for my annual echocardiogram, & a chance to see more crazy pictures of my messed up aortic valve < Note to self.. ;)
Hubs just took son to ER with chest pains.Son has Marfan Syndrome. Had Aortic dissection and valve replaced '07. We err on side of caution.stefpark (stephanie parkinson) Thu, 07 Jan 2010 03:37:39 -0000
Hubs just took son to ER with chest pains.Son has Marfan Syndrome. Had Aortic dissection and valve replaced '07. We err on side of caution.
Mom is OUT OF SURGERY. Had quadruple bypass, got a pig's aortic valve, has 4" of dacron tube where some aorta once was. She's FrankenMom!marthavalenta (marthavalenta) Wed, 06 Jan 2010 21:25:38 -0000
Mom is OUT OF SURGERY. Had quadruple bypass, got a pig's aortic valve, has 4" of dacron tube where some aorta once was. She's FrankenMom!
It's cool @GabiiEscobar. I'm pretty sure it's the narrowing of the aortic valve.CamilleFuston (Mary Camille Fuston) Wed, 06 Jan 2010 00:19:18 -0000
It's cool @GabiiEscobar. I'm pretty sure it's the narrowing of the aortic valve.
Stenosis: Aortic Valve Stenosis (Aort Kapak DarlıÄı) by Aen http://bit.ly/8V11Yqtajazmina (Tannere Jazmina) Tue, 05 Jan 2010 12:33:50 -0000
Stenosis: Aortic Valve Stenosis (Aort Kapak Darlığı) by Aen http://bit.ly/8V11Yq
Stenosis: Aortic Valve Stenosis (Aort Kapak DarlıÄı) by Aen http://bit.ly/4nZA5Ytajazmina (Tannere Jazmina) Tue, 05 Jan 2010 12:33:50 -0000
Stenosis: Aortic Valve Stenosis (Aort Kapak Darlığı) by Aen http://bit.ly/4nZA5Y
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American Heart Association - Defines aortic regurgitation and looks at the causes and what should be done.
Meta Description: [ The aortic valve is between the heart's left ventricle and the aorta, the large artery that receives blood from the heart's left ventricle and distributes it to the body. Regurgitation means the valve doesn't close properly, and blood can leak backward through it. ]
Aortic Insufficiency - A look at the condition and its alternative names, causes, incidence and risk factors.
Aortic Stenosis - Information about this disorder and its causes, risk factors and incidence.
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Aortic Valve Disease - A look at stenosis and regurgitation of this valve.
Cardiothoracic Surgery Notes - A look at the types of disease of the aortic valve, incompetence, symptoms, diagnosis, natural history of stenosis and regurgitation. Facts about replacement surgery, the survival statistics and risk factors post operation.
Heart Matters - A look at the symptoms, diagnosis and etiology of both stenosis and regurgitation of the aortic valve.
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Royal Children's Hospital: Aortic Stenosis - Description and treatment, including pictures.
Rush Children's Heart Center - A definition and discussion on incidence, effects, progression, treatment and complications of aortic stenosis.
Meta Description: [ Rush Children's Hospital provides complete clinical services for the diagnosis and treatment of congenital and acquired heart disease in children and young adults. ]
Treatment Strategies - About.com: Explains what aortic stenosis is and looks at when it should be treated and what options there are.
Meta Description: [ Recent articles on heart disease and cardiology ]