What do systematic reviews say?

NIPPV vs no NIPPV

NIPPV showed no clear difference in mortality compared with no NIPPV (moderate certainty).

• Non‐invasive positive pressure ventilation for prevention of complications after pulmonary resection in lung cancer… 2019 · Cochrane Headline outcomes only
  RR 0.6 [0.24, 1.53]
  4 studies · 151 participants
  Moderate