Bronchiectasis in Infants and Preschool Children Diagnosed with Cystic Fibrosis after Newborn Screening
Objectives
To determine the prevalence of bronchiectasis in young children with cystic fibrosis (CF) diagnosed after newborn screening (NBS) and the relationship of bronchiectasis to pulmonary inflammation and infection.
Study design
Children were diagnosed with CF after NBS. Computed tomography and bronchoalveolar lavage were performed with anesthesia (n = 96). Scans were analyzed for the presence and extent of abnormalities.
Results
The prevalence of bronchiectasis was 22% and increased with age (P = .001). Factors associated with bronchiectasis included absolute neutrophil count (P = .03), neutrophil elastase concentration (P = .001), and Pseudomonas aeruginosa infection (P = .03).
Conclusions
Pulmonary abnormalities are common in infants and young children with CF and relate to neutrophilic inflammation and infection with P. aeruginosa. Current models of care for infants with CF fail to prevent respiratory sequelae. Bronchiectasis is a clinically relevant endpoint that could be used for intervention trials that commence soon after CF is diagnosed after NBS.
AREST CF, Australian Respiratory Early Surveillance Team for Cystic Fibrosis, BAL, Bronchoalveolar lavage, BWT, Bronchial wall thickening, CF, Cystic fibrosis, CT, Computed tomography, ESP, Early surveillance program, NBS, Newborn screening
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This study is supported by Cystic Fibrosis Foundation (USA) (Project grant support), National Health and Medical Research Council (Australia) (Project grant support and Fellowships [S.M.S., P.D.S.]), and) Cystic Fibrosis (Australia) (Project grant support). The authors declare no conflicts of interest.
PII: S0022-3476(09)00474-0
doi:10.1016/j.jpeds.2009.05.005
© 2009 Mosby, Inc. All rights reserved.
Refers to article:
- Gastric Acid Inhibition for Fat Malabsorption or Gastroesophageal Reflux Disease in Cystic Fibrosis: Longitudinal Effect on Bacterial Colonization and Pulmonary Function , 17 August 2009
