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Chinese Journal of Burns ; (6): 296-299, 2010.
Article in Chinese | WPRIM | ID: wpr-305592

ABSTRACT

<p><b>OBJECTIVE</b>To study the clinical distribution characteristics and vicissitude of antibiotic resistance of Acinetobacter baumannii (AB), and to look for the risk factors of AB infection in order to provide reasonable reference for the prevention and treatment of its infection.</p><p><b>METHODS</b>Specimens of blood, venous catheters, sputum, wound exudates and pharyngeal swabs from 156 patients hospitalized in our burn ICU from January 2006 to December 2008 were collected and cultured. The clinical distribution and antibiotic resistance of AB were determined and analyzed. The risk factors related to AB infection were analyzed. Drug resistance rate data were processed with WHONET 5.3 software; the other data were processed with chi-square test and Logistic regression analysis.</p><p><b>RESULTS</b>Ninety-two strains of AB were identified during the three years from different kinds of specimens, with 41 (44.6%) from wound exudates, 14 (15.2%) from pharyngeal swabs and sputum respectively, 13 (14.1%) from blood, and 10 (10.9%) from venous catheters. AB accounted for 23.1% (30/130), 27.5% (25/91), 28.2% (37/131) respectively among the strains detected in 2006, 2007, and 2008. During the three years, except for imipenem and cefoperazone/sulbactam, the average resistance rates of AB to other ten commonly used antibiotics were all above 50.0%. Burn area (χ(2) = 24.374, P = 0.000), mechanical ventilation (χ(2) = 8.968, P = 0.003), duration of use of antibiotics (χ(2) = 3.981, P = 0.046), and deep venous catheterization (χ(2) = 9.170, P = 0.002) were the risk factors of AB infection, and the former two were independent risk factors.</p><p><b>CONCLUSIONS</b>There is a pan-drug resistance tendency of AB in our burn ICU, and the positive culture rates are increasing in recent years. Disinfection and isolation measures, appropriate use of antibiotics, avoidance of invasive performances such as deep venous catheterization and tracheostomy, or shortening their duration are important means to prevent and control infection of AB.</p>


Subject(s)
Adult , Female , Humans , Male , Young Adult , Acinetobacter Infections , Epidemiology , Acinetobacter baumannii , Burns , Epidemiology , Microbiology , China , Epidemiology , Cross Infection , Microbiology , Drug Resistance, Bacterial , Intensive Care Units
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