Use of Orotracheal Continuous Positive Airway Pressure (CPAP) in Newborns With Respiratory Failure

Nasal CPAP is a excellent ventilation modality for newborns, but the incidence of pneumothorax is high (65.% - 9%) our hypothesis is when the baby open the mouth or crie the pressure in the airway is variable, the investigators evaluate a closed system with a intubated baby with a orotracheal system but with a elastic reservoir , the reservoir distend and the pressure in the airway is constant ,with this system the investigators protect the lungs for damage . The investigators want compare the use of nasal CPAP, mechanical ventilation and orotracheal CPAP with a compensation bag (gregory system) in newborns with respiratory failure .