Table 1: The comparison of HFNCO and NIV systems.
HFNCO | NIV |
Fixed flow and variable pressure levels | Variable flow for fixed pressure |
Able to reduce dead space | Increases dead space |
Does not effect tidal volume | May increase tidal volume |
Reduces respiratory workload | More effective in reducing respiratory workload |
Minimal gastric distention | Loss of pressure when mouth is opened |
Pressure can be maintained |