Discussion
This study showed no significant difference between the volume control and pressure control groups at 10, 20, and 30 min after the ventilation initiation. According to the literature review, it seems that there is no similar study investigating the effect of two volume and pressure modes on endotracheal tube cuff pressure, and this study is the first study to investigate the effect of two modes of volume and pressure ventilation on cuff pressure. Previous studies have indicated that the maximum airway pressure is significantly lower in the pressure control ventilation mode compared to the volume control ventilation mode. For example, a study conducted by Tyagi et al. (2011) comparing volume control and pressure control ventilation in patients undergoing laparoscopic cholecystectomy demonstrated that airway pressure was significantly lower in pressure control mode than in volume control mode [Based on the current study results, the passage of time significantly reduced cuff pressure in both volume control and pressure control groups. So, both groups had the lowest cuff pressure at 30 min after ventilation.According to the results of the study by Sole et al. (2011), which evaluated an intervention to maintain cuff pressure in patients undergoing mechanical ventilation, the passage of time reduced cuff pressure significantly [