Diastolic Rumble

Diastolic rumble

Diastolic rumble is a rough rumbling presystolic murmur heard above the apex of the heart and at the fifth point and merging with the clapping first heart sound. This murmur is one of the classic signs of mitral stenosis.

Mitral stenosis is a narrowing of the opening of the mitral valve through which blood must flow from the left atrium to the left ventricle. Due to the narrowing of the opening, an obstacle to normal blood flow occurs, as a result of which the pressure in the left atrium increases.

When the left atrium contracts before ventricular systole, it forces blood through the narrowed opening of the mitral valve, creating turbulence and vibration of the valve leaflets. This produces the characteristic rough diastolic rumble.

Thus, the presence of diastolic rumble indicates severe mitral stenosis and is an important diagnostic sign of this dangerous heart disease. Timely recognition and treatment of mitral stenosis is essential to prevent life-threatening complications.

Diastolic murmur, often combined with a systolic murmur, occurs when blood flow between the anterior and posterior parts of the mitral valve is impaired, which occurs when there is spasm at the site of narrowing of the valve opening due to thickening of the fibrous leaflet or the presence of infiltration of calcifications. In the presence of regurgitation, the mitral commissure does not participate in the formation of a blood stream, and the valve leaflets slam together. As a result, this murmur is coarser than the murmur of other valve defects, without any rebound shock.

The origin of diastolic murmur can be due to various reasons, but the main ones are infection and inflammation. Other factors that can cause a murmur are myocardial diseases such as myocardial infarction or heart failure. Mitral Valve (MV) stenosis can also cause murmurs as in diastole