Alonso-Ojembarrena A, Serna-Guerediaga I, Aldecoa-Bilbao V, et al. - Researchers here examined the diagnostic accuracy of the lung ultrasound (LUS) score to predict moderate-severe bronchopulmonary dysplasia (msBPD) as well as examined if scanning of posterior lung fields improves the diagnostic accuracy. In this multicenter prospective observational study conducted in 6 centers, they obtained two LUS aeration scores, one involving only anterolateral lung fields (LUS score-al) and the other adding the posterior fields (LUS score-p) at birth, 3rd day of life (DOL), 7th DOL, 14th DOL and 21st DOL. They included a total of 832 LUS exams in 298 infants. Both LUS score-p and LUS score-al exhibited a similar moderate diagnostic accuracy to prognosticate msBPD since the 3rd DOL. Only at 14th DOL, slightly improved diagnostic accuracy was observed with scanning posterior lung fields. Addition of gestational age and gender led to improvement in the diagnostic accuracy of the LUS scores. Overall findings suggest the LUS score as valuable for stratifying BPD risk early after birth.