Journal of echocardiography
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A 75-year-old man was referred to our echocardiography laboratory for presurgical evaluation. His past history included ventricular septal defect closure. ⋯ The peak flow velocity of the flow increased from 1.4 m/s in the left decubitus position to 2.9 m/s in the right decubitus position. Double-chamber right ventricle with intermittent mid-ventricular obstruction during the right decubitus position was confirmed by transesophageal echocardiography.