We have observed by means of the phonocardiographic technic that auscultatory presystolic murmurs may at times be an auscultatory illusion owing to certain variations in the first heart sound.

This type of heart murmur is considered innocent, meaning it is not correlated with any heart disease or abnormalities and ...

University of Cambridge Heart murmurs are a key indicator of heart disease in dogs Researchers started with a database of heart sounds from about 1,000 human patients and developed a machine ...