High-Flow Nasal Oxygenation Is Associated with Improved Respiratory Stability During Moderate Multimodal Analgosedation for Pars Plana Vitrectomy: A Randomized Controlled Trial

Background/Objectives: High-flow nasal oxygenation (HFNO) may improve respiratory stability during procedural sedation, but treatment-associated differences across patient risk categories remain uncertain. We compared HFNO with low-flow nasal oxygenation (LFNO) during moderate multimodal analgosedation (MMAS) for pars plana vitrectomy (PPV) in patients with ASA physical status I–III.