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Endotracheal intubation, the insertion of an endotracheal tube (ETT) through the vocal cords into the trachea, is an essential and potentially life-saving procedure in neonates. Most commonly, endotracheal intubation is required soon after birth in infants who are apneic, require extensive resuscitation, have high supplemental oxygen requirements or are performed for the administration of exogenous surfactant to preterm infants with respiratory distress syndrome.