Transient tachypnea of the newborn (TTN) is a common form of respiratory distress in neonates.


TTN may involve a variety of conditions ranging from:

(1) failure to resorb intra-alveolar amniotic fluid

(2) transient left ventricular dysfunction

(3) surfactant deficiency

(4) pulmonary insufficiency


Clinical features:

(1) respiratory distress after delivery, often presenting with a low 1 minute Apgar score

(2) tachypnea

(3) need for respiratory support

(4) resolution in 2-3 days

(5) variable elevation of natriuretic peptides

(6) exclusion of other causes of respirator distress


The “double lung point” can be seen on lung ultrasonography.


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