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 ...

The correct answer is prosthetic mitral valve regurgitation. This patient underwent mitral valve repair with a Bjork-Shiley mechanical prosthesis in the 1980s. Mechanical valves always pose problems ...

Mitral valve prolapse is a common cause of a heart murmur caused by a "leaky" heart valve. Most cases of mitral valve prolapse are not serious and only need to be monitored. Mitral valve prolapse is ...

The mitral valve, so named because of its similarity to a bishop’s miter, has five important structural elements: 1) the mitral annulus, 2) the mitral valve leaflets, 3) the commissures, 4) chordae ...