Heart Failure
COPD
- BIPAP > CPAP
- High Intensity (TV 10-15 ml/kg)
Asthma
Mechanisms of PPV (CPAP / BIPAP)
- Airway stenting
- improves alveolar recruitment
- LV Afterload ⬇️
- Lowers LV transmural pressures
- Raises RV afterload
- Preload ⬇️
- decreases venous return
- Decreases Work of Breathing
- offloads respiratory muscles
