 BPD not only contributes to the mortality of preterm infants but is also associated with impaired neurosensory development in Extremely Low Birth Weight ELBW survivors, frequent readmission to hospital in the first 2 years of life, as well as with an increased risk of asthma, lung function abnormalities and persistent respiratory symptoms in adolescence and young adulthood. Systemic corticosteroids are effective in preventing BPD, but their use is practically prohibited given their adverse effects on neurodevelopment. Early inhalation of corticosteroids has been shown to be associated with secondary pulmonary benefits, but its effect on survival without BPD and on neurodevelopment remains unclear. 