A third heart sound, or S3, is a low-frequency, extra heart sound that may be heard with a stethoscope right after the normal ...

The first heart sound, or S1, is the "lub" of a normal heartbeat. It's a high-pitched sound that occurs at the beginning of systole—when the heart pumps blood out of the heart into the lungs or body.

The basic premise of the stethoscope has been around for centuries, largely unchanged. Jonathan Kitchen/DigitalVision via Getty Images When someone opens the door and enters a hospital room, wearing a ...

Heart sound analysis is an essential area of research in cardiology, focusing on the detection and classification of heart conditions through the analysis of phonocardiogram (PCG) signals. These ...

When someone opens the door and enters a hospital room, wearing a stethoscope is a telltale sign that they’re a clinician. This medical device has been around for over 200 years and remains a staple ...

Valentina Dargam receives funding from Florida Heart Research Foundation and National Institute of Health. Joshua Hutcheson receives funding from the Florida Heart Research Foundation, the American ...