Cardiac Arrest in a Patient With Arrhythmic Mitral Valve Prolapse Syndrome: Multiple Possible Etiologies.

Arrhythmic mitral valve prolapse syndrome is associated with a high risk of death. A 60-year-old man with arrhythmic mitral valve prolapse syndrome was monitored with an implantable loop recorder. Nine months later dyspnea developed, followed by cardiac arrest. Echocardiography showed mitral valve chordal rupture. He underwent successful surgical mitral valve repair. (Level of Difficulty: Intermediate.).