High Flow Nasal Cannula Versus High Velocity Nasal Insufflation for Weaning

"Eligible subjects successfully passing a SBT will be extubated and immediately randomized (1:1:1) to receive one of the following post-extubation respiratory supports for ≥24 hours:~HVNI Arm: High-Velocity Nasal Insufflation (Flow: 40-60 L/min, FiO₂ titrated to SpO₂ ≥92%)."

HFNC Arm: High-Flow Nasal Cannula (Flow: 50-60 L/min, FiO₂ titrated to SpO₂ ≥92%).

NIV Arm: Non-Invasive Ventilation (Mode: \[e.g., PSV\], IPAP: \[e.g., 8-12 cmH₂O\], EPAP: \[e.g., 4-6 cmH₂O\], FiO₂ titrated to SpO₂ ≥92%) delivered via \[e.g., oronasal mask\] for ≥16 hours/day initially, with weaning per protocol.