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 ...

Mitral valve regurgitation is a common heart valve condition in which the mitral valve cannot close properly. Cardiologists may implant mitral valve clips to help the valve close effectively. Mitral ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

Doctors classify mitral valve regurgitation into four progressive stages. Symptoms typically don’t appear until the final stages but monitoring and treatment in earlier stages may help slow ...