We describe an unusual example of double-outlet right atrium with separate atrioventricular junctions. The straddling and overriding tricuspid valve had two orifices, and the mitral valve was morphologically normal. An appropriate understanding of the morphology of the atrioventricular junctions, the valves, and the subvalvar apparatus, along with the location of the atrioventricular conduction axis, allowed for successful biventricular repair.
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References
1.
Van MieropLH. Pathology and pathogenesis of endocardial cushion defects. Surgical implications. In: Second Henry Ford Hospital International Symposium on Cardiac Surgery.
Appleton-Century-Crofts;
1977:
201–
207.
2.
AndersonRH.
Surgical repair of straddling and overriding tricuspid valve. Cardiol Young.
1997;
7(
2):
122–
128.
3.
GuptaSKGuptaARamakrishnanSAndersonRH.
Clarifying the atrioventricular junctional anatomy in the setting of double outlet right atrium. Ann Ped Cardiol.
2015;
8(
3):
233–
238.
4.
IsomatsuYUKurosawaHIImaiYA.
Straddling tricuspid valve without a ventricular septal defect. Heart.
1989;
62(
3):
222–
224.
5.
SpicerDEAndersonRHBackerCL.
Clarifying the surgical morphology of inlet ventricular septal defects. Ann Thorac Surg.
2013;
95(
1):
236–
241.