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AIM—To investigate whether children
with cystic fibrosis under 3 years of age have disordered breathing and
episodes of oxygen desaturation during sleep.
METHODS—We studied 19 infants (9 boys and 10 girls) with cystic fibrosis, mean age 13.1 months (range 3-36 months) and 20 age and sex matched healthy subjects. Patients and controls underwent an overnight polysomnographic study and respiratory function testing on the following morning.
RESULTS—Seven patients with ongoing respiratory tract inflammation had disordered breathing and episodes of oxygen desaturation during sleep. Pulse oximetry showed a significantly lower mean oxygen saturation (SaO2) and a higher percentage of total sleep time spent with SaO2 less than 93% in symptomatic children than in controls.
CONCLUSION—Results suggest that infants and young children with cystic fibrosis and mild airways inflammation (rhinitis, cough, red throat) have episodes of oxygen desaturation during sleep.