“…4,5 The main clinical indications for the use of NIV are directed to the treatment of COPD exacerbation, acute pulmonary edema, pulmonary infection in immunosuppressed subjects, and, in some specific cases, acute pancreatitis. [6][7][8][9][10][11][12] NIV has also been employed to prevent re-intubation in subjects who developed postextubation respiratory failure and to shorten the duration of invasive mechanical ventilation by facilitating weaning (earlier extubation). 13,14 Although the use of NIV improves clinical outcomes, some complications and deleterious effects have also been recognized in clinical practice, such as aspiration, hemodynamic instability, dryness of secretions, and patientventilator asynchrony.…”