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Three‐Dimensional Transesophageal Echocardiographic Demonstration of Anatomical Defects in AV Septal Defect Patients Presenting for Reoperation

We present two‐ and three‐dimensional transesophageal echocardiographic findings of two adult patients who presented for reoperation after previous repair of a partial atrioventricular (AV) septal defect. Both patients had a cleft in the left AV valve with severe regurgitation. One patient had an additional 10 × 5 mm defect connecting the left ventricle to the right atrium through the AV junction. Three‐dimensional echocardiography was superior to two‐dimensional echocardiography in comprehensively delineating the anatomical defects in the left AV valve and the AV junction. (ECHOCARDIOGRAPHY, Volume 20, January 2003)