Lung-protective ventilation (LPV), characterized by low tidal volumes and appropriate PEEP, is a cornerstone in managing patients with acute respiratory distress syndrome (ARDS). However, its application in patients with severe acute brain injury raises concerns. The potential for lung protective ventilation to increase intracranial pressure due to hypercapnia and elevated PEEP levels necessitates a closer examination of its safety and efficacy in this unique patient population.