The disappearance of nonsustained ventricular tachycardia after surgical repair in a patient with mitral annular disjunction and mitral valve prolapse.

Mitral annular disjunction (MAD) is a structural abnormality defined as the separation of the ventricular myocardium between the mitral valve annulus and the left atrial wall. It is present in some patients with mitral valve prolapse (MVP) and is associated with papillary muscle fibrosis and ventricular arrhythmia. Although it is easy to diagnose, it can be overlooked in daily practice. This study presents the case of a 42-year-old patient who was admitted to the cardiology clinic with complaints of palpitation and syncope. The patient was diagnosed with bileaflet MVP, MAD, and severe mitral regurgitation using transthoracic echocardiography and cardiac magnetic resonance imaging, in which ventricular tachycardia disappeared following subsequent surgical repair.