Prevention of ventilator-associated pneumonia with heating wire of breath pipeline for single use

WEI Hai-ling; XIN Shao-bin

doi:10.3760/cma.j.issn.1673-4777.2012.08.011

Abstract：Objective To explore the clinical value of heating wire of disposable breath pipeline for preventing ventilator-associated pneumonia(VAP)in mechanically ventilated patients.Methods All patients who received mechanical ventilation(M V)were randomly divided into three groups:control group,treatment group A and treatment group B.There was not a heating wire in the breath pipeline of control group.There was one heating wire in the inspiratory pipeline of group A.There were two heating wires in the inspiratory and expiratory pipelines of group B.The number of the patients who got VAP and the time of getting VAP and the pathogenic bacteria of VAP were observed and compared.Results The incidences of early VAP of group A and B were all much lower than those of control group [5.6％(3/54)vs 26.4％(14/53),3.8％(2/53)vs 26.4％ (14/53),P＜0.05].The incidences of late VAP of group B was much lower than those of group A and control group [9.4％ (5/53)vs 22.6％ (12/53),9.4％ (5/53)vs 24.1％ (13/54),P ＜ 0.05].The time of getting VAP in group A and B were all later than that in the control group (P ＜ 0.05).The time of getting VAP in group B is later than group A (P ＜ 0.05).The infection rate of pseudomonas aeruginosa in group A,group B and control group were 7.4％ (4/54),3.8％ (2/ 53)and 34.0％ (18/53)(P ＜ 0.05).Conclusions The use of heating wire of disposable breath pipeline has lower incidence of the early VAP and later onset of VAP than general breath pipeline.The use of twin heating wire of disposable breath pipeline has lower incidence of the delayed VAP and later onset of VAP than a single heating wire of disposable breath pipeline.The use of heating wire can reduce the infection rate of pseudomonas aeruginosa.