Use of NIV has been shown to be more safe with lesser
complications. It preserves the cough reflex and reduces the
risk for ventilator‑associated pneumonia.[31] With NIV, oral
intake and speech can be maintained along with no requirement
of sedation. In a recent Cochrane systematic review on NIV
as a weaning strategy for MV in adults with respiratory failure,
which included 16 trials, suggested that noninvasive weaning
reduces mortality and pneumonia without increasing the risk
of weaning failure or re‑intubation [Figure 3].[