Comparison of Continuous Positive Airway Pressure (CPAP) and Non-Invasive Positive Pressure Ventilation (NIPPV) in Preterm Newborns With Respiratory Distress Syndrome.

Primary objective: to evaluate safety and efficacy of two different non-invasive respiratory support modalities in preterm neonatal patients with respiratory distress syndrome. Secondary objective is to compare different respiratory support mode performance in different gestational age groups. Primary endpoint is treatment failure. With this study, the following hypotheses will be tested: Hypothesis 1: NIPPV has a lower failure rate compared to CPAP mode. Hypothesis 2: NIPPV complication rate is non-superior compared to CPAP.