Cor Triatriatum and Intracardiac Anomalous Pulmonary Venous Return: An Inborn Atrial Flow Inversion

A neonate with a diagnosis of nonobstructive intracardiac type total anomalous pulmonary venous connection presented with profound cyanosis in the first days of life. The preoperative specialist echocardiographic examination also identified the presence of partial cor triatriatum dexter. The anatomic pattern of this exceedingly rare disease's association, its peculiar clinical presentation, and surgical management are discussed. (c) 2022 by The Society of Thoracic Surgeons