1. Ventilation protocol.
Ventilation protocol. The PEEP group raised peak inspiratory pressure (PIP) through 5-cm H2O PEEP increments every 2 min while keeping a fixed inspiratory driving pressure of 15 cm H2O. There is no current anesthesia workstation available supporting PEEP levels >50 cm H2O; therefore, breaking the fixed inspiratory driving pressure was necessary in those animals that already had reached PEEP of 50 cm H2O without signs of pneumothorax. In those cases, PIP was increased directly while keeping PEEP constant at 50 cm H2O.
Patricio González-Pizarro et al. Respir Care 2016;61:
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