Continuous Positive Airway Pressure vs. Nasal Intermittent Positive Pressure Ventilation in Preterm Neonates: What if Mean Airway Pressures were Equivalent?

Respiratory support for preterm neonates in modern neonatal intensive care unit is predominantly with the use of non-invasive interfaces. Continuous positive airway pressure (CPAP) and nasal intermittent positive pressure ventilation (NIPPV) are the prototypical and most commonly utilized forms of non-invasive respiratory support, and each has unique gas flow characteristics. In meta-analyses of clinical trials till date, NIPPV has been shown to likely reduce respiratory failure and need for intubation compared to CPAP. However, a significant limitation of the included studies has been the higher mean airway pressures used during NIPPV. Thus, it is unclear to what extent any benefits seen with NIPPV are due to the cyclic pressure application vs. the higher mean airway pressures. In this review, we elaborate on these limitations and summarize the available evidence comparing NIPPV and CPAP at equivalent mean airway pressures. Finally, we call for further studies comparing non-invasive respiratory support modes at equal mean airway pressures.

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The authors declare that they have no conflict of interest.