IRCT20190221042783N1 IRCT 2019-06-12 Iran University of Medical Sciences The effect of ventilator weaning protocol on duration of mechanical ventilation Effect of protocol-directed versus conventional-directed weaning for reducing the duration of mechanical ventilation in cardiac surgery patients who developed AKI. 2018-01-21 anticipated 100 Complete https://irct.ir/trial/37724 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Simple randomization. N/A Acute renal failure. Intervention 1: Intervention group: After the open heart surgery, the patients will transfer to CCU . In the Intervention group patients will separate from ventilator based on adopted mechanical ventilation weaning protocol (WM 42-05) and ventilation time will recorded. In this protocol, based on patient's readiness and considering the criteria and patient's status based on the protocol, some parameters (respiratory rate, arterial oxygen saturation, consciousness, minute volume and effective cough) will be evaluated. Intervention 2: Control group: After the open heart surgery, the patients will transfer to CCU . In the control group patients will separate from ventilator based on conventional method and ventilation time will recorded. No - There is not a plan to make this available Justification or reason for not sharing IPD is No more information