Narrow murmur

Cardiac murmurs A group of mixed vocals with different frequencies, intensities, and long durations other than heart murmurs. It can be separated or continuous with the heart sound, and even completely cover the heart sound. It is divided into systolic murmur, diastolic murmur, and continuous murmur according to the period of its appearance; it can be divided into jetting, regurgitation, and music according to its nature; sound samples, thunder samples, hair dryers, machine samples, etc. Clinical significance can be divided into functional noise and organic noise. Functional murmurs are quite common in healthy people, and organic murmurs have important diagnostic significance for cardiomyopathy and certain congenital cardiovascular diseases.