Study of improved tracheal tubes in the critical patients of ventilation

Objective To investigate practicability of improved tracheal tubes in the intubated - ventilated patients. Methods It used by advanced disquisitive method , the critical patients who needed to spile in tracheal and machine ventilation, were randomly divided into control group, treatment A group and treatment B group. All the patients used improved intubations. Sputum and subglottic secretion were measured by bacteriology every group, and morbidity of ventilator associated pneumonia(VAP) were an alysed. Results Subglottic secretion were more in 24 hours in treatment B group than in control group and treatment A group. Morbidity of voice hoarseness in the treatment A group and control group were significantly higher than those in treatment B group. There were significant differences between the treatment A group and treatment B group. Morbidity of VAP in control group was higher than that in treatment A group and treatment B group, and morbidity of late VAP in control group was higher than that in treatment A group and treatment B group. Conclusion Improved tracheal tubes can clear awaysubglottic sevretion,it' s one of the best and the most effective measure to prevent the VAP in the critical patients of ventilation. Application of improved tracheal tube can decrease morbidity of VAP.