aetiology of cyanosis in neonates

Last reviewed 01/2018

Cardiac and circulatory causes include:

• transposition of the great arteries
• stenosis or atresia of the pulmonary artery or tricuspid valve
• total anomalous pulmonary venous return
• persistent foetal circulation

Respiratory causes include:

• all causes of respiratory distress syndrome
• birth asphyxia, birth injury or bleed
• obstruction of the airway, for example in Pierre-Robin syndrome or choanal atresia