A polyurethane cuffed endotracheal tube is associated with decreased rates of ventilator-associated pneumonia☆
Abstract
Purpose
The aim of this study was to determine whether the use of a polyurethane-cuffed endotracheal tube would result in a decrease in ventilator-associated pneumonia rate.
Materials and Methods
We replaced conventional endotracheal tube with a polyurethane-cuff endotracheal tube (Microcuff, Kimberly-Clark Corporation, Rosewell, Ga) in all adult mechanically ventilated patients throughout our large academic hospital from July 2007 to June 2008. We retrospectively compared the rates of ventilator-associated pneumonia before, during, and after the intervention year by interrupted time-series analysis.
Results
Ventilator-associated pneumonia rates decreased from 5.3 per 1000 ventilator days before the use of the polyurethane-cuffed endotracheal tube to 2.8 per 1000 ventilator days during the intervention year (P = .0138). During the first 3 months after return to conventional tubes, the rate of ventilator-associated pneumonia was 3.5/1000 ventilator days. Use of the polyurethane-cuffed endotracheal tube was associated with an incidence risk ratio of ventilator-associated pneumonia of 0.572 (95% confidence interval, 0.340-0.963). In statistical regression analysis controlling for other possible alterations in the hospital environment, as measured by rate of tracheostomy-ventilator-associated pneumonia, the incidence risk ratio of ventilator-associated pneumonia in patients intubated with polyurethane-cuffed endotracheal tube was 0.565 (P = .032; 95% confidence interval, 0.335-0.953).
Conclusions
Use of a polyurethane-cuffed endotracheal tube was associated with a significant decrease in the rate of ventilator-associated pneumonia in our study.
Keywords: Pneumonia, Ventilator-associated, Nosocomial infections, Ventilators, Mechanical, Endotracheal tube
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☆ Funding/Support: This study was partially funded by Kimberly-Clark Corporation, Rosewell, Ga, which manufactures Microcuff. Kimberly-Clark Corporation supplied the Microcuff polyurethane-cuffed endotracheal tubes for the intervention year free of charge. Kimberly-Clark Corporation employees were not involved in the concept, design, or conduct of the study, nor were they involved in the analysis of data or review of the manuscript before submission. Dr Robert Hyzy has received a consulting fee of $5800 in 2008 and a $6000 unrestricted educational grant in 2007 from the Kimberly-Clark Corporation.
PII: S0883-9441(10)00163-2
doi:10.1016/j.jcrc.2010.05.035
© 2011 Elsevier Inc. All rights reserved.
