What is the difference between mitral stenosis and mitral regurgitation?

In mitral valve stenosis, the valve narrows, restricting blood flow through the heart. In mitral valve regurgitation, the valve does not close completely, allowing blood to flow backward through the valve and possibly into the lungs.

How does mitral stenosis cause mitral regurgitation?

Mitral valve stenosis occurs when the mitral valve in your heart narrows, restricting blood flow into the main pumping chamber. Your mitral valve may also leak, causing blood to flow back through the valve each time the left ventricle contracts. This condition is called mitral valve regurgitation.

What is mitral regurgitation PPT?

Mitral Regurgitation  Mitral regurgitation (MR) is defined as an abnormal reversal of blood flow from the left ventricle (LV) to the left atrium (LA).  It is caused by disruption in any part of the mitral valve (MV) apparatus.

What is stenosis and regurgitation?

Overview. The aortic valve controls blood flow from the heart to the rest of the body. In aortic stenosis, the valve narrows, restricting blood flow from the heart. In aortic regurgitation, the valve opening does not close completely, causing blood to leak backward into the heart.

Is mitral regurgitation and systolic or diastolic murmur?

The four most commonly encountered diastolic murmurs include aortic and pulmonary valve regurgitation, and mitral and tricuspid valve rumbles (Table 27.1). Compared to most systolic murmurs, diastolic murmurs are usually more difficult to hear, and certain auscultatory techniques are essential for their detection.

Why does mitral valve regurgitation occur?

A tear can cause leakage through the mitral valve suddenly and may require repair by heart surgery. Trauma to the chest also can rupture the cords. Rheumatic fever. Rheumatic fever — a complication of untreated strep throat — can damage the mitral valve, leading to mitral valve regurgitation early or later in life.

What type of murmur is mitral stenosis?

The diastolic murmur of mitral stenosis is of low pitch, rumbling in character, and best heard at the apex with the patient in the left lateral position. It commences after the opening snap of the mitral valve, and the duration of the murmur correlates with the severity of the stenosis.

What happens when you have mitral regurgitation?

Severe mitral valve regurgitation places an extra strain on the heart because, with blood pumping backward, there is less blood going forward with each beat. The left ventricle gets bigger and, if untreated, weakens. This can cause heart failure.