title: Noninvasive diagnosis of left ventricular outflow tract obstruction caused by a porcine mitral prosthesis.
abstract: A patient developed shortness of breath 8 years after mitral valve replacement with a porcine prosthesis. Doppler echocardiography revealed left ventricular outflow tract obstruction created by a protruding prosthesis.
mesh_terms: D000818:Animals; D001705:Bioprosthesis / Q000009:adverse effects*; D006328:Cardiac Catheterization; D003327:Coronary Disease / Q000175:diagnosis* / Q000209:etiology; D004452:Echocardiography; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve