title: [Noninvasive assessment of an aortic bioprosthesis malfunction with Doppler echocardiography].
abstract: A 27-year-old patient with aortic stenosis received a Carpentier Edwards bioprosthesis and a reconstruction of the mitral valve, in 1978. With auscultation, M-mode and two-dimensional echocardiography, we diagnosed in 1985 a malfunction of the aortic prosthesis with restenosis, insufficiency and mitral insufficiency. A reliable qualitative and quantitative non-invasive assessment, however, was only possible with Doppler echocardiography. The velocity of blood flow over the aortic valve was measured with the continuous-wave Doppler technique; the aortic valve pressure gradient and the valve area were determined. The pulsed Doppler allowed a semi-quantitative evaluation of the severity of the aortic and mitral insufficiency. The intraoperative and pathological anatomical results confirmed the results from Doppler echocardiography: aortic valve prosthesis malfunction with restenosis and insufficiency and mild haemodynamically insignificant mitral valve insufficiency. The need for cardiac catheterization in patients with valvular heart disease and prosthesis is discussed.
mesh_terms: D000328:Adult; D001024:Aortic Valve Stenosis / Q000601:surgery*; D001705:Bioprosthesis; D006328:Cardiac Catheterization; D004452:Echocardiography; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis*; D011475:Prosthesis Failure; D012212:Rheology
vernacular_title: Nichtinvasive Beurteilung einer Aorten-Bioprothesen-Dysfunktion mit der Doppler-Echokardiographie.