Causes of cardiovascular murmur?

summary

The generation of vascular murmur is the same as that of heart murmur, which depends on the generation of vortex field. Normal blood vessels generally do not produce murmurs. When blood flows in blood vessels, it is caused by the acceleration of blood flow, or the vortex of blood flow caused by the blood flow passing through the stenosis to a wider place, or the blood flow passing through the abnormal channel. Causes of cardiovascular murmur? Let's talk about it

Causes of cardiovascular murmur?

Blood flow acceleration: blood flow in the vascular cavity is stratified flow, in which the central part of the fastest, the farther away from the central part of the slower, and the edge of the slowest. Catching elephants is called laminar flow. If the velocity of blood flow reaches or exceeds the velocity of laminar flow into turbulence, the turbulence field will be produced, which will cause the vibration and noise of the heart wall or blood vessel wall.

Stenosis of valve orifice: it is caused by turbulent flow field generated by blood flow passing through the stenosis. Organic stenosis, such as mitral valve stenosis, aortic valve stenosis, etc., relative stenosis, which is seen in ventricular cavity or large vessels (aorta or pulmonary artery) enlargement, causes relative stenosis of valve orifice, but the valve does not change,

Regurgitation of valve: it is caused by the turbulent flow field caused by the reverse flow of blood flow through the regurgitated valve. Organic insufficiency, such as rheumatic mitral insufficiency, aortic insufficiency. Relative insufficiency is caused by the following factors: the papillary muscle and bile cord move to both sides due to ventricular enlargement, such as dilated cardiomyopathy; Due to the insufficiency of tension of papillary muscle and femoral cord caused by ischemia of papillary muscle, mitral valve prolapse occurs at the time of maximum ventricular ejection, such as coronary heart disease; Due to the dilation of the great vessels, the valve rings also dilate, such as hypertension and aortic sclerosis.

matters needing attention

Pay attention to your diet. Daily life to eat low-fat food, such as lean meat and low-fat dairy products. Moderate drinking. Drinking 3-9 glasses of wine a week is good for the heart. But be careful not to drink too much, because drinking too much can cause heart disease.