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Doctor insights on: Transcatheter Aortic Valve Implantation

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Dr. Michael Gabor
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Valve (Definition)

A valve is a structure that regulates the direction of flow. The heart is a special kind of pump. It moves blood by squeezing and relaxing. There are 4 chambers and each chamber has a valve. This keeps blood from moving backwards when the heart squeezes. When a chamber squeezes it lets the blood move forward but when the chamber is relaxed it prevents the blood from ...Read more


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Where is the aortic valve located?

Where is the aortic valve located?

Aortic Valve: The aortic valve is an integral part of the heart and is located between the left ventricle and the aorta. It opens when the left ventricle contracts (systole) and allows blood to be pumped into the aorta. It closes when the left ventricle fills (diastole). ...Read more

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What is another name for aortic valve?

What is another name for aortic valve?

Semi-lunar: It is one of 2 semi-lunar valves (the other is the pulmonic valve) but the aortic valve per se has no other unique name (in english). ...Read more

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What are the symptoms of aortic valve insufficiency?

What are the symptoms of aortic valve insufficiency?

Shortness of breath: If valve insufficiency is mild or moderate, you may not have any symptoms. Severe valve insufficiency causes significant back flow of the blood causing enlarged heart chamber and congestion of blood to structure before the valve (lung or liver) causing shortness of breath and heart failure symptoms. ...Read more

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What is the definition or description of: aortic valve?

Exit door of heart: The aortic valve is one of 4 valves in the heart, each of which separates 2 cardiac chambers. It opens when blood is actively ejected from the left ventricle into the aorta artery, to be carried to the rest of the body. It then closes firmly to prevent blood from flowing backwards, while it passively continues to flow forward to body's vital organs. When next heartbeat comes, it opens again. ...Read more

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Is the aortic valve operation dangerous?

Is the aortic valve operation dangerous?

Major surgery: It's a major operation. Survival is >98% in most series. Other premorbid medical conditions like previous stroke, COPD or kidney disease increases the risk. General good health and younger age lower the risk. ...Read more

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Which type of valve is the aortic valve?

Semi-lunar: The aortic valve is a semi-lunar valve. In the majority of people it has 3 half moon shaped leaflets that open during ventricular systole and close during diastole. Morphological, they look similar to the valves in veins. ...Read more

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What is a replacement of the aortic valve?

What is a replacement of the aortic valve?

AVR: Exactly what it says. If there is a problem with the aortic valve (between left ventricle and aorta) (either narrowed -stenotic- or leaking -insufficient) it can be surgically replaced. It can be replaced with a mechanical "metal" or tissue valve "pig valve". ...Read more

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What are symptoms of an aortic valve prolapse?

Maybe none: Av prolapse results in aortic regurgitation. Even if it's severe, it may take decades before symtpoms occur, if ever. Symptoms when present may be breathlessness with less than usual activity, anginal type chest pain, or spells of passing out/nearly passing out. ...Read more

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What is aortic valve stenosis?

Aortic stenosis: Narrowing of the aortic valve which is located between the left ventricle and the aorta. ...Read more

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How serious is a bicuspid aortic valve?

How serious is a bicuspid aortic valve?

Needs to be followed: The normal aortic valve has 3 leaflets but the bicuspid valve only has 2. It is the most common valve congenital malformation. About 1-2%. The natural course is for the valve to get stiffer over time and not open wide enough. This is called stenosis. Most pts need aortic valve replacement by their 50-60's. Until that time though it should not have a significant impact. Need antibiotics for dental. ...Read more

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What does aortic valve stenosis lead to?

Aortic stenosis: Aortic stenosis refers to the gradual destruction of the aortic valve. It is a progressive process that eventually leads to shortness of breath and lack of energy with exercise. Untreated it will eventually cause congestive heart failure. ...Read more

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What are causes of aortic valve stenosis?

Multiple: Perhaps the most common offending etiology in aortic stenosis in the us is atherosclerosis. Just as this can affect the arteries in the body, it can affect the tissues covering the aortic valve and then the plaque deposition and calcific degeneration of the valve leads to its problems. Rheumatic heart disease, not common in the us, is another common cause in third world countries. ...Read more

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What are treatments for aortic valve problems?

Depends: It depends on the type of aortic valve problem, insufficiency or stenosis. Both have different degress (mild, moderate, severe) and treatment is different in each category. They may have different etiologies also which will require different approaches to treatment as well. Severe forms of either malady will eventually need aortic valve replacement. ...Read more

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How dangerous is bicuspid aortic valve disease?

Bicuspid: Bicuspid aortic valve disease can go lifelong without causing a problem but in some people does progress to aortic stenosis, insufficiency or both. It does require follow up. ...Read more

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Can people with bicuspid aortic valve live long?

Can people with bicuspid aortic valve live long?

Yes but don't ignore: The aortic valve normally has three cusps, or leaflets. Some people are born with only two cusps of this valve, and this abnormality does increase the chance that the valve will deteriorate and require replacement. Also associated with the bicuspid aortic valve is a tendency for the first segment of the aorta to enlarge into an aneurysm. A cardiologist should monitor these conditions. ...Read more

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Can a trivial leak in the aortic valve get worse?

Usually not: "Trivial" leaks are often seen on echocardiography and are of little clinical significance. ...Read more

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How do I prepare for aortic valve repair surgery?

How do I prepare for aortic valve repair surgery?

Follow instructions: Your doctor and office staff will give you specific instructions about which medications to take on the day of surgery. Usually, patients are instructed to continue blood pressure medications on the usual schedule. If you are on aspirin, ask if you need to stop taking it. Do not eat or drink anything after midnight other than a sip of water for taking your medications. Take a morning shower. ...Read more

Aortic Valve (Definition)

The aortic valve is one of 4 valves in the heart, each of which separates 2 cardiac chambers. It opens when blood is actively ejected from the left ventricle into the aorta artery, to be carried to the rest of the body. It then closes firmly to prevent blood from flowing backwards, while it passively continues to flow forward to body's vital organs. When next heartbeat ...Read more


Implantation (Definition)

One common meaning refers to the process by which an embryo attaches to the uterus of a woman so that she is pregnant. Many think of it as 'sticking.' implantation in humans always occurs when the embryo is between 6-7 days old. A very popular concept on the internet now in 2012, 'implantation bleeding, ' is speculative ...Read more