RESUMO
Objective To compare the detection results by bacteria pathogenic rate of ventilatorassociated pneumonia (VAP) pipeline and ventilator patients with mechanical ventilation,to investigate whether need to replace the ventilator weaning patients underwent another test of pipeline during mechanical ventilation.Methods This study selected using the ventilation mechanical ventilation for more than 48 hours,try (48 ± 4) hours required to mechanical ventilation in 69 patients.They were divided into two groups according to admission time,group A was in need of replacement ventilation pipeline of new again during mechanical ventilation,group B used the original pipeline.In offline,try again during mechanical ventilation after mechanical ventilation,once daily for 4 days to collect ventilator pipe air outlet samples for bacterial culture counts were observed,while offline,use again after 2 hours,12 hours of ventilator,24 hours,2 days,3 days,4 days of body temperature,white blood cell count,neutrophil classification and other indicators.The incidence of VAP was compared between two groups.Results The temperature,white blood cell count,neutrophil classification were (38.5 ± 1.6)℃,(11.8 ± 3.5)×109/L,0.85±0.16 in group A,while (38.4 ± 2.0) ℃,(12.1 ± 3.7)×109/L,0.84 ± 0.20 in group B,and there were no significant differences between two groups,P＞0.05.The incidence of VAP was 37.1％(13/35) and 35.3％(12/34) in group A and group B,and there was no significant difference,P＞ 0.05.Conclusion There is no necessary for trial offline patients without respiratory infection to change the ventilator pipe when to re-ventilate during the 7 days using period of the ventilator pile.
RESUMO
Objective To discuss the frequency of ventilator pipe replacement in ICU ward for reducing the frequency of VAP occurrence caused by bacterial colonization in ventilator-line. Methods 30 patients hospitalized to ICU ward from Janurary,2008 to June, 2009 who had mechanical-ventilation above 48h were randomly divided into group A, B and C with 30 patients in each group, then bacteria culture and strain analysis were employed for the pipeline sample of ventilator inspiratory side at the time point to be use and used mechanical ventilation for 1 day, 3 days and 7 days. Results There was no bacteria grew after ventilator-line sterilization, and positive ratio of bacterial culture in 1d, 3d and 7d were 46.66%,53.33% and 100.00%, respectively. Conclusions The frequency of ventilator pipe replacement should be shortened in patients with abdominal infection, to replace every 3 days is suitable in ICU where infectious patients gathered.