title: Echocardiographic patterns of prosthetic valve malfunction.
mesh_terms: D004452:Echocardiography; D005069:Evaluation Studies as Topic; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000601:surgery*; D013927:Thrombosis / Q000175:diagnosis*