title: Usefulness of echocardiography in patients undergoing mitral valve surgery.
mesh_terms: D000328:Adult; D002302:Cardiac Output; D004452:Echocardiography; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D008943:Mitral Valve / Q000502:physiology / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000175:diagnosis; D008946:Mitral Valve Stenosis / Q000601:surgery; D014159:Transducers