title: [How long should an acquired heart valve disease be conservatively treated, when should surgery be done?].
mesh_terms: D001022:Aortic Valve Insufficiency / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D006349:Heart Valve Diseases / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000601:surgery
vernacular_title: Wie lange soll ein erworbener Herzfehler exspektativ behandelt werden, wann muss operiert werden?