Fluid Responsiveness in Post-cardiac Surgery

"The EEO test will be performed by interrupting the mechanical ventilation at end-expiration over 15 seconds using the end-expiratory hold button available on the ventilator.~The EIO test will be performed by interrupting the mechanical ventilation at end-inspiration over 15 seconds using the end-inspiratory hold button available on the ventilator."

elevating tidal volume from 6 ml/kg to 8 ml/kg for only 60 seconds