Fig. 2 Stress echocardiographic images: A) parasternal long-axis view shows the systolic anterior motion (SAM) of the anterior mitral leaflet (arrow); B) 4-chamber long-axis view shows SAM (arrow); C) M-mode of the parasternal long axis shows the anterior mitral leaflet in close proximity to the septum at end-systole (arrow); and D) continuous-wave Doppler shows a left ventricular outflow velocity approaching 6 m/sec and a left ventricular outflow tract gradient >144 mmHg.

Ao = aorta; AV = aortic valve; LA = left atrium; LV = left ventricle; MV = mitral valve; RA = right atrium; RV = right ventricle