Abstract
: Left ventricular-to-right atrial communication, known as Gerbode defect, is rare. However, right ventricular-to-left atrial communication is much rarer. We present a case of a middle-aged woman with a past history of primum atrial septal defect surgery who presented with dyspnea on exertion. Echocardiographic studies showed dehiscence of the pericardial atrial patch from atrioventricular junction, causing a right ventricular-to-left atrial communication with bidirectional shunt. A three-dimensional transesophageal echocardiographic reconstruction revealed a defect of septal tricuspid valve leaflet. In atrioventricular septal defect, the apical displacement of mitral valve insertion, together with a congenital defect of septal tricuspid valve leaflet, contributes to predisposing conditions for this communication.
MeSH terms
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Cardiac Surgical Procedures / adverse effects*
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Coronary Circulation
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Dyspnea / etiology
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Echocardiography, Doppler, Color
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Echocardiography, Three-Dimensional
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Echocardiography, Transesophageal
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Female
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Heart Atria / diagnostic imaging
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Heart Atria / physiopathology
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Heart Atria / surgery*
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Heart Septal Defects, Ventricular / diagnostic imaging
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Heart Septal Defects, Ventricular / physiopathology
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Heart Septal Defects, Ventricular / surgery*
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Heart Ventricles* / diagnostic imaging
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Heart Ventricles* / physiopathology
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Heart Ventricles* / surgery
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Hemodynamics
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Humans
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Middle Aged
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Treatment Outcome
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Tricuspid Valve / abnormalities*
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Tricuspid Valve / diagnostic imaging
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Tricuspid Valve / physiopathology
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Tricuspid Valve / surgery
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Tricuspid Valve Insufficiency / etiology
Supplementary concepts
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Partial atrioventricular canal