title: Computed tomography score and pulmonary function in infants with chronic lung disease of infancy.
abstract: Chronic lung disease of infancy (CLDI) remains a common outcome among infants born extremely prematurely. In older children and adults with lung disease, pulmonary function and computed tomography (CT) scores are used to follow up respiratory disease and assess disease severity. For infants and toddlers, however, these outcomes have been used very infrequently and most often, a dichotomous respiratory outcome (presence or absence of CLDI) is employed. We evaluated the performance of CT score and pulmonary function to differentiate infants and toddlers with CLDI from a control group. CT scans, forced expiratory flows and pulmonary diffusing capacity were obtained in 39 CLDI patients and 41 controls (aged 4-33 months). CT scans were quantified using a scoring system, while pulmonary function was expressed as Z-scores. CT score outperformed pulmonary function in identifying those with CLDI. There were no significant correlations between CT score and pulmonary function. CT score had a better performance than pulmonary function in differentiating individuals with CLDI; however, these outcomes may reflect differing components of the pulmonary pathophysiology of CLDI. This new information on pulmonary outcomes can assist in designing studies with these parameters. Future studies will be required to evaluate which of the outcomes can better detect improvement with therapeutic intervention and/or lung growth.
authors.affiliation: Section of Pulmonology, James Whitcomb Riley Hospital for Children, 702 Barnhill Drive, Indianapolis, IN 46202-5225, USA.
authors.forename: E E
authors.initials: EE
authors.lastname: Sarria
authors.forename: R
authors.initials: R
authors.lastname: Mattiello
authors.forename: L
authors.initials: L
authors.lastname: Rao
authors.forename: M R
authors.initials: MR
authors.lastname: Wanner
authors.forename: M E
authors.initials: ME
authors.lastname: Raske
authors.forename: C
authors.initials: C
authors.lastname: Tiller
authors.forename: R
authors.initials: R
authors.lastname: Kimmel
authors.forename: R S
authors.initials: RS
authors.lastname: Tepper
mesh_terms: D001997:Bronchopulmonary Dysplasia / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D005540:Forced Expiratory Flow Rates; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D008168:Lung / Q000000981:diagnostic imaging / Q000254:growth & development / Q000502:physiology; D008297:Male; D011653:Pulmonary Diffusing Capacity / Q000379:methods* / Q000592:standards; D012372:ROC Curve; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed / Q000379:methods* / Q000592:standards