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Aortic stenosis with severe left ventricular dysfunction and low transvalvular pressure gradients

Risk stratification by low-dose dobutamine echocardiography

Jean-Luc Monin, MD^*, Mehran Monchi, MD, Virginie Gest, MD^*, Anne-Marie Duval-Moulin, MD^*, Jean-Luc Dubois-Rande, MD, PhD^* and Pascal Gueret, MD, FACC^*

^* Fédération de Cardiologie, Hôpital Henri Mondor, Créteil, France
University Hospital Sart Tilman, Liège, Belgium

View larger version (15K): [in a new window]   Figure 1 Kaplan-Meier survival curves by group and treatment. Med = medical therapy.

View larger version (28K): [in a new window]   Figure 2 Preoperative and postoperative New York Heart Association (NYHA) functional classes of the 21 patients in group I who survived after valve replacement.

View larger version (24K): [in a new window]   Figure 3 Left ventricular ejection fractions (LVEF) before (preop) and after (postop) valve replacement in group I patients. Open circles represent individual patient data (n = 16); solid horizontal lines indicate median values; and hatched boxes indicate quartiles.