Comparing HHHFNC and nCPAP Ventilation Methods for the Prevention of Extubation Failure in Preterm Infants

Purpose is to show that HHHFNC method is as effective and safe as nCPAPand even more comfortable than it as non-invasive respiratory support for the prevention of extubation failure in preterm with gestational age of 26-32 weeks. Patients requiring mechanical ventilation for at least 6 hours on the first 7 postnatal days will be included in the study.When patients were Fi O2 \< 0,40, Pa CO2 \< 65 mmHg, pH\> 7.20, MAP (mean airway pressure) \<7 cm H2O, they will be extubated if statistically stable.Oxygen-air mixture of 4-6 l / min flow rate will be set in HHHFNC group, and pressure will be set to 5-8 cm H2O in NCPAP group. When flow is 2 l / min, FiO2 is\<0.30 at 24 hours and above, free oxygen will be introduced. In NCPAP group, when pressure is 5 cm H2O and FiO2 \< 0.30 at 24 hours and above, free oxygen will be introduced.