Which mitral disorder is characterized by redundancy of the mitral valve's leaflets?

Mitral valve prolapse is characterized by redundancy of the mitral valve's leaflets. In this condition, one or both of the valve leaflets bulge (prolapse) back into the left atrium during systole, which indicates an abnormality in the structural integrity of the valve. The excess tissue and elongation of the chordae tendineae contribute to this redundancy, leading to potential regurgitation of blood back into the atrium. It’s a common condition that may be asymptomatic but can also lead to complications such as arrhythmias or significant regurgitation if severe. This distinguishes it from the other conditions listed, which do not specifically involve the redundancy or abnormal structure of the mitral valve leaflets.