title: Prosthetic mitral regurgitation detected by Doppler echocardiography.
mesh_terms: D004452:Echocardiography / Q000379:methods*; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D008944:Mitral Valve Insufficiency / Q000175:diagnosis*; D014465:Ultrasonics