What valve narrowing results in mitral stenosis?

Mitral Valve. The mitral keeps oxygenated blood flowing in one direction from the left atrium to the left ventricle.
Mitral valve. The mitral valve is between the left atrium (la) and the left ventricle (lv). So blood with new oxygen returns from lungs into la then it passes thru the mitral valve into (lv) which pumps it to the body. Mitral stenosis is when the mitral valve doesn't open all the way. This makes filling of the heart difficult. The blood backs up causing the (la) to dilate and the lungs to get sick too.

Related Questions

Is mitral stenosis a congenital defect or the narrowing of the mitral valve due to scaring?

Scarring. Scarring due to rheumatic heart disease due to infection with certain subtypes of group a beta hemolytic streptococcus.
Can be either. The majority of mitral stenosis is a result of a previous strep infection which cause rheumatic fever. This begins a slowly progressive scarring of heart valves. The aortic and mitral valves most commonly. However there can be congenital mitral stenosis when the mitral valve may not form big enough during fetal development.

What are possible non-invasive treatments for mitral stenosis with mitral valve area less than 0.85?

Mitral stenosis. Severe mitral stenosis is a mechanical obstructive lesion. It needs to be corrected by surgery or occassionally a catheter based dilation of the abnormal valve. Surgery is generally preferred. Non invasive treatment can not increase the valve area and is limited to slowing the heart rate to allow more time for ventricular filling. This is of limited benefit.

How effective is an ultrasound (at ER) to rule out Mitral Valve Prolapse or Mitral Stenosis?

Ultrasound dx. An ultrasound examination is the test that is the most operator-dependent exam in medicine. It usually is not performed in the ER. MVP is usually a benign condition but mitral stenosis can be very serious. I would speak to a cardiologist about this. A good one can pick these conditions up by just listening with a stethoscope.
Not great. A formal echocardiogram with assessment by doppler is essential to make a diagnosis of mitral stenosis. ER ultrasounds are good for screening but not for a definitive diagnosis.

How do you diagnose mitral valve stenosis?

Stethoscope & echo. Mitral stenosis can be diagnosed by a characteristic murmur heard with a stethoscope. This can be confirmed by an echocardiogram (an ultrasound exam) which can help assess the severity of the narrowing of the valve.
Echocardiogram. If a physician hears a specific heart sound, he/ she can order an ultrasound of the heart (echocardiogram) which will look at the valves and can detect the mitral stenosis.

How do you tell the severity of mitral valve stenosis?

Several ways. There are several ways to check how severe your mitral stenosis is. The most common and least invasive method is by transthoracic echocardiography, an ultrasound of the heart.
Different tests.. The main way of evaluating the heart is with ultrasound which is referred to as echo. It can estimate the pressure change across the valve. <5 mm hg mild. 5-10 moderate and >10 severe. Also we can measure blood pressure in the lungs if this is very high that is sign if severe stenosis. Recently cardiac MRI can be used to evaluate the heart too.

What is mitral valve stenosis?

Narrowing. This is a narrowing of the valve opening usually caused by rheumatic fever. It eventually leads to respiratory symptoms and heart failure. Fortunately it can be successfully treated with surgery.
Mitral valve. The mitral valve has to open properly to let blood flow into the left ventricle from the atrium. If it doesn't, we call this stenosis. It has to close to keep the blood flowing toward the body, if it doesn't we call this regurgitation or insufficiency. Either or both problems can exist with the valve if its abnormal. Insufficiency is more common.

Is mitral valve stenosis dangerous or not?

Depends. This depends on how severe the stenosis is. It is important to see a cardiologist and continue to watch this condition closely as it changes over time, and you may need surgery at some point in time.

How could mitral valve stenosis be treated?

If severe, surgery. True, classical mitral stenosis is caused by rheumatic fever. Some types can be very aggressive causing compromised cardiac output & symptoms of marked shortness of breath & fatigue. There are no medical interventions that treat mitral stenosis. This leaves, when the time is appropriate, surgical repair or replacement. Balloon based interventions have not proven to be satisfactorily effective.
Surgery. If you have symptomatic mitral stenosis, you need a valvuloplasty (through a catheter) or surgical commissurotomy or valve replacement depending on your age and the condition of your valve.

I may have mitral valve stenosis. Is that bad?

Depends. This depends on how severe the stenosis is. It is important to see a cardiologist and continue to watch this condition closely as it changes over time, and you may need surgery at some point in time.
It depends. Mitral stenosis is a disease of the mitral valve which doesn't let the valve open enough. It is more common in the us to see the valve leak. The issue is how blocked is the valve. If the mv is too tight then pressure builds up in the lungs and the lungs get sick with pulmonary hypertension. The usual treatment would be a valve replacement though some can be repaired.