TY - JOUR T1 - The changing pattern of chronic lung disease of prematurity. JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 448 LP - 451 DO - 10.1136/adc.64.4_Spec_No.448 VL - 64 IS - 4 Spec No AU - I Hyde AU - R E English AU - J D Williams Y1 - 1989/04/01 UR - http://adc.bmj.com/content/64/4_Spec_No/448.abstract N2 - Thirty four infants with chronic lung disease of prematurity were reviewed and divided into two groups on the appearance of the chest radiograph. Type 1 disease (n = 19) was defined as homogeneous or patchy ill defined opacification in the lungs without coarse reticulation, and type 2 disease (n = 11) had the classical appearance of bronchopulmonary dysplasia. Four patients could not be classified. We conclude that type 1 disease represents typical chronic lung disease of premature infants, and type 2 is usually complicated by pulmonary interstitial emphysema. As no infant with type 1 disease died, its histopathological basis is unknown. ER -