The Blue Baby - Neonatal Cyanosis - Differential, Physiology, Investigations and Management

Presentation done in the context of the 11th McGill Neonatal Conference on Neonatal Cardiac Issues (June 1st, 2022). Here we review cases with neonatal cyanosis secondary to congenital heart defect or persistent pulmonary hypertension. There are 4 cases presented and review the physiology, anatomies, investigations, differential diagnosis and management. We will review: transposition of great arteries, pulmonary valvular stenosis, persistent pulmonary hypertension in the newborn secondary to premature ductal closure during fetal life and total anomalous pulmonary venous return. The presentation is focused on physiology concepts and very early stabilisation. The presentation does not review the exhaustive management of all these conditions.