Comparison on the effect of mechanical ventilation with different suctioning in respiratory failure patients

Objective To investigate the effect on the parameters of respiratory and circulatory systems in respiratory failure patients receiving mechanical ventilation by different suctioning. Methods 40 respiratory failure patients receiving mechanical ventilation were randomly divided into control group and experimental group (20 patients per group). Individuals in experimental group were treated with closed endotracheal suctioning and the others were treated with open endotracheal suctioning. The parameters of respiratory and circulatory systems were observed before and after suctioning. All the subjects used own control. Results The parameters of respiratory and circulatory systems did not change significantly in experimental group. The heart rate,SpO2,Ppeak,Pplat have changed significantly and the SBP,RR and PaO2 also reached the statistical significance before and after suctioning in control group. However,Vt and PaCO2 did not change significantly(P ＞ 0.05).Conclusions Respiratory failure patients treated with closed endotracheal suctioning was safer and more effective than traditional open-suctioning. Key words: Suctioning; Respiratory failure; Mechanical ventilation; Artificial airway