Double-outlet right atrium is an extremely rare congenital cardiac defect, in which the right atrium drains into both ventricles. Here in, we present a peculiar case involving an 8-year-old female with double-outlet right atrium characterized by three distinct atrioventricular valves and a membranous ventricular septal defect. This is associated with right atrium to left ventricular flow through the accessory atrioventricular valve while maintaining adequate size of the right ventricle. Additionally, we include a comprehensive review of the literature to underscore the variability in clinical presentation and management strategies.
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