Assessment of portable oxygen concentrators in infants undergoing hypoxic challenge testing. A randomised controlled crossover trial.

Aim: Due to reduced PaO , aircrafts at cruising altitudes are pressurised to a cabin altitude of 2438 m, equivalent to breathing FiO 0.15. Portable oxygen concentrators (POCs) are approved for onboard oxygen supply with lack of evidence, especially in infants.

Utility of the pediatric sleep questionnaire and pulse oximetry as screening tools in pediatric patients with suspected obstructive sleep apnea syndrome.

Objective. To assess the screening tools in snoring patients. Material and Methods.