Surgical experience for prolapse of both atrioventricular valves in a patient with filamin A mutation.

A 21-year-old man underwent mitral valve replacement and tricuspid annuloplasty for severe mitral regurgitation and moderate tricuspid regurgitation. Until the operation, he had been treated for hypermobility type Ehlers-Danlos syndrome. Gene examination revealed a mutation in filamin A gene, which is the gene responsible for X-linked myxomatous valvular dystrophy.