Hari P Chaliki

Keywords Aortic diseases/pathology, echocardiography, Doppler/methods, heart failure/etiology, Marfan syndrome/complications, reoperation, treatment outcome, ventricular outflow obstruction/diagnostic imaging/etiology/physiopathology Abstract A high-velocity gradient across the left ventricular outflow tract is most often caused by aortic valve stenosis. We describe the unusual case of a high-velocity gradient caused by a kinked ascending aortic graft in a 69-year-old man who had Marfan syndrome.