What condition does NPPV specifically reduce the risk of?

Noninvasive Positive Pressure Ventilation (NPPV) specifically reduces the risk of ventilator-induced lung injuries. This is primarily due to the fact that NPPV avoids the complications associated with invasive mechanical ventilation, such as intubation. By maintaining adequate ventilation and oxygenation without the need to insert an endotracheal tube, NPPV minimizes the trauma to the airway and lung tissue that can occur with invasive methods.

These ventilator-induced lung injuries often arise from factors like barotrauma, volutrauma, and respiratory alkalosis due to excessive pressure and volume from invasive mechanical ventilation techniques. NPPV provides pressures that can assist with ventilation while allowing patients to maintain their own airway protection, further reducing the likelihood of injury. Thus, the noninvasive aspect of NPPV can significantly decrease associated complications that would be more prevalent with traditional mechanical ventilation methods.