the practical guide for NIV part 3

Continuous positive airway pressure (CPAP):

• CPAP is a  fixed positive pressure throughout the respiratory cycle.
• CPAP appears to be more effective in reducing the need for tracheal intubation and possibly mortality in patients presenting with with acute cardiogenic pulmonary oedema (ACPE).

Bi-level positive airway pressure (BiPAP):

• BiPAP is when the ventilator delivers different levels of pressure during inspiration (IPAP) and expiration (EPAP).
• BiPAP ventilation appears to be more effective in reducing mortality and the need for tracheal intubation in patients with an acute decompensation of COPD.