13/01/2026
https://zurl.co/KhmxZ PEEP can raise PaO2 while reducing global oxygen delivery when cardiac output falls. In ARDS it enlarges the baby lung by recruiting dependent regions but can also overdistend already aerated units and stabilise airways above the airway opening pressure. Its haemodynamic effects alter venous return, right ventricular afterload and left ventricular afterload, influencing end-organ perfusion.