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Meta-Analysis
. 2007 Apr 28;334(7599):889.
doi: 10.1136/bmj.39136.528160.BE. Epub 2007 Mar 26.

Oral decontamination for prevention of pneumonia in mechanically ventilated adults: systematic review and meta-analysis

Ee Yuee Chan  1 , Annie Ruest, Maureen O Meade, Deborah J Cook
Affiliations
Meta-Analysis

Oral decontamination for prevention of pneumonia in mechanically ventilated adults: systematic review and meta-analysis

Ee Yuee Chan et al. BMJ. .

Abstract

Objective: To evaluate the effect of oral decontamination on the incidence of ventilator associated pneumonia and mortality in mechanically ventilated adults.

Design: Systematic review and meta-analysis.

Data sources: Medline, Embase, CINAHL, the Cochrane Library, trials registers, reference lists, conference proceedings, and investigators in the specialty.

Review methods: Two independent reviewers screened studies for inclusion, assessed trial quality, and extracted data. Eligible trials were randomised controlled trials enrolling mechanically ventilated adults that compared the effects of daily oral application of antibiotics or antiseptics with no prophylaxis.

Results: 11 trials totalling 3242 patients met the inclusion criteria. Among four trials with 1098 patients, oral application of antibiotics did not significantly reduce the incidence of ventilator associated pneumonia (relative risk 0.69, 95% confidence interval 0.41 to 1.18). In seven trials with 2144 patients, however, oral application of antiseptics significantly reduced the incidence of ventilator associated pneumonia (0.56, 0.39 to 0.81). When the results of the 11 trials were pooled, rates of ventilator associated pneumonia were lower among patients receiving either method of oral decontamination (0.61, 0.45 to 0.82). Mortality was not influenced by prophylaxis with either antibiotics (0.94, 0.73 to 1.21) or antiseptics (0.96, 0.69 to 1.33) nor was duration of mechanical ventilation or stay in the intensive care unit.

Conclusions: Oral decontamination of mechanically ventilated adults using antiseptics is associated with a lower risk of ventilator associated pneumonia. Neither antiseptic nor antibiotic oral decontamination reduced mortality or duration of mechanical ventilation or stay in the intensive care unit.

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Conflict of interest statement

Competing interests: None declared.

Figures

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Fig 1 Flow of studies through trial
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Fig 2 Forest plot showing effect of oral decontamination prophylaxis compared with no prophylaxis on risk of ventilator associated pneumonia
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Fig 3 Forest plot showing effect of oral decontamination prophylaxis compared with no prophylaxis on overall mortality
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Fig 4 Forest plot showing effect of oral decontamination prophylaxis compared with no prophylaxis on duration (days) of mechanical ventilation and duration of stay (days) in an intensive care unit
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Fig 5 Funnel plots assessing publication bias for ventilator associated pneumonia
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