[Value of echocardiography-dobutamine in the study of reserve myocardial contractility in aortic stenosis with alteration of left ventricular function. Apropos of a case].
The authors report a case of tight aortic stenosis, without coronary artery disease, presenting with heart failure, alteration of global left ventricular contractility and a low gradient. Increasing-dose dobutamine echocardiography demonstrated an improvement of myocardial contractility and an accentuation of the transvalvular gradient. The place of this examination in the therapeutic strategy and follow-up of the disease is discussed in the light of the current data of the literature.
Deluche
L
L
Service de Cardiologie, Hôpital Cardiologique du Haut-Lévêque, Pessac.
Laffort
P
P
Pepin
C
C
Vircoulon
B
B
Bonnet
J
J
Roudaut
R
R
D000368:Aged; D001024:Aortic Valve Stenosis / Q000150:complications / Q000175:diagnosis / Q000628:therapy*; D002316:Cardiotonic Agents; D004280:Dobutamine; D004452:Echocardiography; D006801:Humans; D008297:Male; D009200:Myocardial Contraction; D018487:Ventricular Dysfunction, Left / Q000209:etiology / Q000628:therapy*
D002316:Cardiotonic Agents; D004280:Dobutamine