Mechanical ventilation can cause damage to the lung parenchyma, this is known as ventilatory induce lung injury (VILI).To avoid this damage, ventilatory strategies have been created, focused on the reduction of tidal volume, airway pressures and use of PEEP (positive end-expiratory pressure), which together are called "protective ventilation". Although ventilation with protective parameters seems to reduce VILI in one-lung ventilation, the optimal parameters are not clear.
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Ventilation/ perfusion ratio
Timeframe: 1 hour
Pulmonary mechanics
Timeframe: 1 hour
Arterial gas measurement
Timeframe: 20 minutes