systolic reflux murmur
Introduction
Introduction Systolic reflux murmur. It is the noise generated by the blood flowing back from the high pressure heart chamber through the abnormal passage to the low pressure heart chamber, also known as reflow noise. Found in organic heart disease: 1 atrioventricular valve regurgitation; 2 ventricular septal defect or perforation; 3 main pulmonary artery communication with pulmonary hypertension. Many people think that more exercise, less greasy food, quit smoking and alcohol can escape the claws of heart disease. In fact, this practice is not complete, because there are some daily neglected details of life will also murder your heart.
Cause
Cause
Found in organic heart disease: 1 atrioventricular valve regurgitation; 2 ventricular septal defect or perforation; 3 main pulmonary artery communication with pulmonary hypertension.
Examine
an examination
The characteristic of the heart sound map is that the noise is consistent or increasing or decreasing. It starts after S1 and often covers S1; it lasts longer, and it takes more systole and has higher frequency. The murmur of the mitral insufficiency (most loud outside the apex and apical area, or to the lower left scapula) occurs early in the contraction, or most of the systole. The intensity is above 2 to 3, the pitch is high, rough, boasting or musical, and there are many forms on the heart sound map. Ventricular septal defect murmur is most loud between the 3 to 4 ribs on the left sternal border.
Characteristics of systolic reflux murmur:
1 time limit occupies the entire systolic period as a full systolic murmur;
2 pitches are high;
3 forms are mostly consistent or variability;
4 intensity is proportional to the reverse flow rate (except for ventricular septal defect);
5 conduction is more extensive.
Diagnosis
Differential diagnosis
Differential diagnosis of systolic reflux murmur:
Mid-systolic jet murmur (referred to as jet murmur): seen in the semilunar valve or ventricular outflow tract stenosis, or the semilunar valve is normal and the ventricular ejection speed is too fast, or the blood is shunted from the high pressure cardiovascular cavity to the low pressure blood The lumen. It is mainly heard or recorded at the bottom of the heart. The characteristics of the heart sound map are: the noise has a gap between the high frequency component of S1 and S1, which is equivalent to the ventricular contraction period. The murmur is an increasing-decreasing diamond. The half-month stenosis causes an extension of the ejection time of the corresponding ventricle, which delays the peak of the noise. The degree of delay in the rhombohedron is proportional to the degree of stenosis, and the amplitude of the murmur is proportional to the average velocity of ventricular ejection. The frequency of the noise is parallel to the intensity of the noise. The jet murmur on one side is finally closed before the contralateral half moon flap is closed, but the contralateral half moon flap is closed. The location of the murmur, the duration of the systolic period, the morning and evening of the rhomboid, and the morphology are also related to the ventricular ejection volume, the ejection start time, the length of the ejection period, and the instantaneous blood flow changes during the ejection period. Common in pulmonary stenosis (PS) and so on.
