An S4 heart sound is a low-pitched sound that occurs toward the end of the diastole. In some cases, an underlying health condition, often one affecting the left ventricle, may cause the S4 heart sound ...

When the doctor places that cold stethoscope on your chest, she’s listening for two distinct sounds – lub-DUB. “You can almost set your clock to what you are hearing,” said internist Mary Ann Kuzma.

Every year, hundreds of thousands of Americans die from heart disease–the leading cause of death in the country. In some ...

The second heart sound is produced by the closure of the aortic and pulmonic valves. The sound produced by the closure of the aortic valve is termed A2 and the sound produced by the closure of the ...

The first heart sound (S1) results from the closing of the mitral and tricuspid valves. The sound produced by the closure of the mitral valve is termed M1, and the sound produced by closure of the ...

The S3 heart sound occurs as the mitral valve opens and allows blood to fill the left ventricle passively. The sound happens as a result of blood striking the left ventricle during early diastole. An ...

Wearable heart sound devices mark a groundbreaking shift in cardiac care, enabling continuous, non-invasive monitoring and transforming the prevention, diagnosis, and treatment of cardiovascular ...

If you set a cardiac nurse loose on a Propeller microcontroller and some parts you might not know what to expect. But we’re intrigued by the outcome of this project which looks to mimic a heartbeat’s ...