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 ...

Blood flows through the heart and generates noises known as heart sounds. These noises occur due to heart valves opening and closing as the heart pumps blood. A doctor can gain valuable information by ...

The fourth heart sound (S4), also known as the “atrial gallop,” occurs just before S1 when the atria contract to force blood into the left ventricle. If the left ventricle is noncompliant, and atrial ...

The fourth heart sound (S4), also known as the "atrial gallop", occurs just before S1 when the atria contract to force blood into the LV. If the LV is non-compliant and atrial contraction forces blood ...

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.

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 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 ...