The flap over mitral valve prolapse

A billowing mitral valve poses trouble mainly when it gets leaky.

It has been a long, strange trip for mitral valve prolapse. Since this valve abnormality gained its name in the early 1960s, it has been called both dangerous and benign, widespread and uncommon. The title of an editorial in the British Medical Journal summed up the confusion like this: "Mitral valve prolapse: harbinger of death or variant of normal?"

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