Cor triloculare biventriculare, single atrium is hemodynamically similar to atrial septal defect.
Cor triloculare biventriculare is a rare form of congenital heart disease that presents similarly to a large atrial septal defect, with mild tachypnea, cyanosis, and clubbing of the fingers and toes. In patients with cor triloculare biventriculare, electrocardiography demonstrates a superior QRS axis. Echocardiography is diagnostic.
