Use of the RAM Cannula with Early Bubble Continuous Positive Airway Pressure Requires Higher Pressures: Clinical and In vitro Evaluations.

· The transmission of the pressure oscillations from bubble CPAP is diminished with the RAM cannula.. · Increasing set CPAP pressures was associated with a decreased delivery room intubation rate and a decreased CPAP failure rate within 72 hours.. · Clinicians using the RAM cannula for bCPAP will need to increase pressures to obtain adequate lung inflation or change to a nasal interface designed for bCPAP..