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Common arterial trunk with intact septum and hypoplastic right ventricle: An uncommon embryological entity


1 Department of Pediatric Cardiology, CARE Hospitals, Hyderabad, Telangana, India
2 Department of Pediatric Cardiac Surgery, CARE Hospitals, Hyderabad, Telangana, India

Correspondence Address:
Dr. Vinoth Doraiswamy
Department of Pediatric Cardiology, CARE Hospitals, Road No. 1, Banjara Hills, Hyderabad - 500 034, Telangana
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/apc.APC_48_19

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Year : 2020  |  Volume : 13  |  Issue : 2  |  Page : 157-159

 

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Embryologically, the common arterial trunk (CAT) is due to the failure of septation by the major outflow cushions. This invariably leads to the presence of an associated large juxta-arterial ventricular septal defect. Overriding of the ventricular septum leads to its biventricular origin in more than 2/3rd of cases. Uncommonly, CAT may be associated with an intact ventricular septum (IVS) and univentricular origin. We describe an infant with CAT, intact IVS, hypoplastic right ventricle, and Ebstein's anomaly of the tricuspid valve who presented to us and palliated successfully. The embryological mechanisms are discussed in this report.






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1 Department of Pediatric Cardiology, CARE Hospitals, Hyderabad, Telangana, India
2 Department of Pediatric Cardiac Surgery, CARE Hospitals, Hyderabad, Telangana, India

Correspondence Address:
Dr. Vinoth Doraiswamy
Department of Pediatric Cardiology, CARE Hospitals, Road No. 1, Banjara Hills, Hyderabad - 500 034, Telangana
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/apc.APC_48_19

Rights and Permissions

Embryologically, the common arterial trunk (CAT) is due to the failure of septation by the major outflow cushions. This invariably leads to the presence of an associated large juxta-arterial ventricular septal defect. Overriding of the ventricular septum leads to its biventricular origin in more than 2/3rd of cases. Uncommonly, CAT may be associated with an intact ventricular septum (IVS) and univentricular origin. We describe an infant with CAT, intact IVS, hypoplastic right ventricle, and Ebstein's anomaly of the tricuspid valve who presented to us and palliated successfully. The embryological mechanisms are discussed in this report.






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