The use of noninvasive respiratory support (NRS) has increased in recent decades in Neonatal Intensive Care Unit (NICU) as a means to reduce ventilator-induced lung injury. Various modes of NRS are available and in common use. However despite extensive research, the optimal modality of noninvasive modes remain unknown.~Noninvasive high-frequency oscillatory ventilation (NHFOV) is a relatively new mode. It consists of the application of a continuous distending positive pressure with superimposed oscillations. It is a method of augmenting Continuous positive airway pressure (CPAP) support potentially combining the advantages of both high-frequency oscillatory ventilation and CPAP.~The new NHFOV technique offers improved carbon dioxide (CO2) removal and increased functional residual capacity. The superimposed oscillations of NHFOV are thought to help avoid gas trapping and upregulate mean airway pressure.~This technique is also characterized by lower tidal volume resulting in fewer barotraumas /volutraumas and not needing synchronization. NHFOV was considered a strengthened version of CPAP.~The hypothesis is that NHFOV might be superior to NIPPV as a post-extubation respiratory support strategy to avoid reintubation and subsequent complications and/or sequelae in preterm infants.
A randomized controlled trial comparing Noninvasive high frequency oscillatory ventilation (NHFOV) and Noninvasive positive pressure ventilation (NIPPV) as post-extubation respiratory support in preterm neonates with respiratory distress syndrome(RDS)