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 ...

S1 is the first heart sound that doctors can hear using a stethoscope. The vibrations that occur when the mitral and tricuspid valves in the heart close produce the S1 sound. There are two common ...

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

There are a few common extra heart sounds that the clinician may encounter. These include ejection sounds that occur with pulmonic or AS heard in early systole, “clicks” that are heard in mitral or ...

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 ...

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.

San Francisco, CA - Calling into question the "time-honored" tradition of using third and fourth heart sounds to identify cardiac abnormalities, a new study indicates that the overall diagnostic ...

Atlanta, GA - The Heart Sounds Tutorial, an online simulation of a cardiac physical examination, will be demonstrated throughout the American College of Cardiology 51st Annual Scientific Session.

IT IS possible that the existence of the heart sounds was known to Hippocrates 1 and even that he made use of his knowledge for diagnostic purposes, but William Harvey 2 seems to have been the first ...

The second heart sound (S2) 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 ...

Researchers develop a method to identify aortic valve dysfunction using complex network analysis that is accurate, simple to use, and low-cost. They used heart sound data to create a complex network ...