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Saurabh Kumar Gupta1, Anunay Gupta1, Sivasubramanian Ramakrishnan1, Robert H Anderson2
1 Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
2 Institute of Genetic Medicine, University of Newcastle, Newcastle-upon-Tyne, United Kingdom
Correspondence Address:
Saurabh Kumar Gupta
Assistant Professor, Department of Cardiology, Room No. 23, 7th floor CT Centre, All India Institute of Medical Sciences, New Delhi - 29
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0974-2069.164688
Double outlet atrium is a rare cardiac anomaly wherein one of the atriums, most frequently the right atrium, opens into both the ventricles. Although seen more commonly in the setting of atrioventricular septal defect, this arrangement can also be found when one of the atrioventricular connections is atretic due to absence of the atrioventricular connection and the other atrioventricular valve straddles the muscular ventricular septum. It is the specific anatomy and connections of the atrioventricular junction that clarifies the situation and distinguishes between these two types of double outlet atrium. In this report, we present a case of double outlet right atrium co-existing with the absence of left atrioventricular connection. We then discuss the morphologic aspects of this interesting anomaly.
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