hi i just found out last week i have a micro valve and have willam sydrome i need more info about the valve?

Question

hi i just found out i have micro valve i and have allmost 30 years with willam sydrome any doctors know more what can happen what dose walking or others got to do with the valve will i stand for a longtime walk jump will one side get weeker then the other what about my hands and eyes my knees what will happend over the years when i get older ?

Answer 1

It's called Mitral Valve. And you should be discussing these questions with your Dr. as it can have some serious problems. Only you dr can prescribe the correct activity levels etc for this condition.

The mitral valve (also known as the bicuspid valve or left atrioventricular valve), is a dual flap (bi = 2) valve in the heart that lies between the left atrium (LA) and the left ventricle (LV). In Latin, the term mitral means shaped like a miter, or bishop's cap. The mitral valve and the tricuspid valve are known collectivly as the atrioventricular valves because they lie between the atria and the ventricles of the heart and control flow.

A normally functioning mitral valve opens to pressure from the superior surface of the valve, allowing blood to flow into the left ventricle during left atria systole (contraction), and closes at the end of atrial contraction to prevent blood from back flowing into the atria during left ventricle systole. In a normal cardiac cycle, the atria contracts first, filling the ventricle. At the end of systole, the bicuspid valve shuts, and prevents backflow as the ventricle begins its systole phase. Backflow may occur if the patient suffers from mitral valve prolapse, causing an audible "murmer" during auscultation.

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Anatomy
The mitral valve has two cusps/leaflets (the anteromedial leaflet and the posterolateral leaflet) and guards the opening. The opening is surrounded by a fibrous ring known as the mitral valve annulus. (The orientation of the two leaflets were once thought to resemble a bishop's miter, which is where the valve receives its name.[1]) These valve leaflets are prevented from prolapsing into the left atrium by the action of tendons attached to the posterior surface of the valve, chordae tendinae.

The inelastic chordae tendineae are attached at one end to the papillary muscles and the other to the valve cusps. Papillary muscles are finger like projections from the wall of the left ventricle. Chordae tendinae from each muscle are attached to both leaflets of the mitral valve. Thus when the ventricle contracts, the intraventricular pressure forces the valve to close, while the tendons prevent the valve from opening in the wrong direction.

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Normal physiology
During left ventricular diastole, after the pressure drops in the left ventricle due to relaxation of the ventricular myocardium, the mitral valve opens, and blood travels from the left atrium to the left ventricle. About 70-80% of the blood that travels across the mitral valve occurs during the early filling phase of the left ventricle. This early filling phase is due to active relaxation of the ventricular myocardium, causing a pressure gradient that allows a rapid flow of blood from the left atrium, across the mitral valve. This early filling across the mitral valve is seen on doppler echocardiography of the mitral valve as the E wave.

After the E wave, there is a period of slow filling of the ventricle.

Left atrial contraction (left atrial systole) (during left ventricular diastole) causes added blood to flow across the mitral valve immediately before left ventricular systole. This late flow across the open mitral valve is seen on doppler echocardiography of the mitral valve as the A wave. The late filling of the LV contributes about 20% to the volume in the left ventricle prior to ventricular systole, and is known as the atrial kick.

Answer 2

I think you mean mitral valve prolapse. I have this. When I was younger I had a heart murmur and did several testing and nothing else became of it. Until recently when I was working out, I had pain in chest that didn't quite go away and went to the dr. and did some testing and diagnosed with MVP. Do not drink decaffeinated drinks b/c it will increase your heart palpitations. You can also be prescribe a medication to help with your palpitation. It's a beta blocker medication. It helps with your heart palpitations, but you should definitely go see another dr. if the dr. you're seeing is not very helpful or see a cardiologist. I was told to just go about doing normal activities.

Answer 3

I think you mean mitral valve. As people, (not just those with Williams syndrome) get older they are more prone to getting mitral valve prolapse which is when the mitral valve does not function quite properly. This allows blood to pool behind the valve and makes you more prone to infection.(they have you take anti-biotics to have your teeth worked on etc.)

Williams syndrome has many effects of which some affect the blood flow, pressure etc. Try here http://www.williams-syndrome.org/forparents/whatiswilliams.html and don't start thinking everything happening to you is a symptom.

I happen to have mitral valve prolapse, and it has zero affect on me. I would not have known I had it were it not for a gall bladder attack they mis-diagnosed as a heart attack.

Answer 4

I have a mitral valve prolapse. Don't know if this is what you meant or not, but it can lie dormant for a long time. I thought I was hvaing a heart attack!!