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Hybrid Nature of Ventilator Breaths
- Patient breaths on ventilators combine ventilator-generated pressure and patient-generated muscular pressure (PMUS).
- This hybrid mechanism creates challenges in managing ventilation for patients with spontaneous effort.
Patient Drive vs Lung-Protective Ventilation
- Strong patient respiratory drive often leads them to demand larger tidal volumes than ventilators set for lung protection.
- This mismatch causes patient discomfort and ventilator desynchrony.
Liberal Ventilator Settings for Comfort
- Liberalizing ventilator settings to match patient demand can improve comfort and avoid desynchrony.
- However, this may lead to non-lung-protective high tidal volumes that require clinical judgment.