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

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 tha...

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Bibliographic Details
Main Authors: Kalyanraddi Chikkagoudar, Palak Gupta, Nageswara Rao Koneti, Tapan K Dash, Vinoth Doraiswamy
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2020-01-01
Series:Annals of Pediatric Cardiology
Subjects:
Online Access:http://www.annalspc.com/article.asp?issn=0974-2069;year=2020;volume=13;issue=2;spage=157;epage=159;aulast=Chikkagoudar
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Summary: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.
ISSN:0974-2069