This study evaluates the effect of non-invasive high frequency oscillations applied via a highflow nasal cannula ('Osciflow') compared to highflow nasal cannula without oscillations (HF) on desaturations and bradycardia in premature infants. It uses a crossover design. Infants are randomized to begin the study with either Osciflow or HF. Both modes are applied for 4 hours. Infants are monitored with an oximetry sensor to measure peripheral oxygen saturation (SpO2) and pulse rate, and with a transcutaneous CO2-transducer. Further measurements include respiratory rate and 'Bernese pain scale' evaluated by nursing staff and Electrical Impedance Tomography (EIT) in a subset of patients.
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Paired difference in the total number of desaturations and bradycardia between Osciflow and HF
Timeframe: 180-minute recording periods for each therapy