Is mild mitral regurgitation a heart attack?

If

the frequency of mild mitral regurgitation is relatively low and the patient is healthy at ordinary times, no abnormality of the heart is found through cardiac color Doppler ultrasound and ECG. Mild mitral regurgitation may be caused by mental stress, which may lead to blood pressure exceeding the pressure that the mitral valve can withstand, causing mild mitral regurgitation, which is a normal physiological phenomenon. If the patient often has mild mitral regurgitation and palpitations at ordinary times, slight damage to mitral valve is found through cardiac color Doppler examination, which may be caused by myocarditis, myocardial infarction and other heart diseases. At this time, mild mitral regurgitation is heart disease.