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(A) Transesophageal color Doppler method showing the systolic anterior motion of the mitral valve and aliased flow in the left ventricular outflow tract during systole. Continuous wave Doppler showed a gradient ranging between 50 (B), 80 (C), and 180 mmHg (D) in different steps of the surgical procedure. LA, left atrium; LV, left ventricle; AO, aorta.
