EVALUATION Data collection will be made prospectively. Investigators will measure the parameters of lung mechanics (tidal volume expiratory airflow (TVe), peak inspiratory pressure (PIP), pressure at the end of exhalation (PEEP), inspiratory time (iT)), in each of inflations administered to preterm with VPP or during the administration of continuous positive airway pressure (CPAP) in spontaneous breathing, in the first 10 minutes after birth, recording the air leakage through the mask and obstructions. Investigators also measure parameters of respiratory status and hemodynamic (FIO 2, oxygen saturation, end tidal CO2, respiratory rate, heart rate), patient monitoring during the implementation of the protocol, blood gases, manipulations of the airway during intervention and the onset of complications.