invasive respiratory support

HFNC Kubicka et al (Pediatrics.2008) concluded thatHFNC therapy using cannulae of 0.2-cm outerdiameter can generate some level of CPAPwhen the mouth is closed. The amount of pressure generated wasrelated to the flow rate, the size of the leakaround the nasal cannula, , and the degree ofmouth opening. They also raised the important safety andmonitoring issues for the use of thesedevices.