کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3347378 | 1215965 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Prevalence and epidemiology of microbial pathogens causing bloodstream infections: results of the OASIS multicenter study Prevalence and epidemiology of microbial pathogens causing bloodstream infections: results of the OASIS multicenter study](/preview/png/3347378.png)
Beginning on April 2007, a prospective multicenter study was performed to investigate prevalence and epidemiology of microbial pathogens causing bloodstream infections (BSIs). Twenty microbiology laboratories participated to the survey over a 1-year period. A total of 11 638 episodes of BSI occurred in 11 202 patients, with 8.5% (n = 985) of episodes being polymicrobial. Of 12 781 causative organisms, aerobic Gram-negative bacteria were 47.4% (n = 6058), whereas Gram-positives accounted for 43.9% (n = 5608). The remaining organisms included fungal species (n = 924, 7.2%) and anaerobes (n = 191, 1.5%). The most prevalent agents were Escherichia coli (21.7%), Staphylococcus aureus (14.9%), Staphylococcus epidermidis (8.2%), Pseudomonas aeruginosa (7.0%), and Enterococcus faecalis (6.3%). Isolates recovered from patients admitted to medical, surgical, and intensive care units accounted for 62.9%, 17.7%, and 19.4% of cases, respectively. BSIs were classified as hospital-acquired in 67.2% of cases. Compared with previous studies, our data show an increasing role of Gram-negative bacteria among both hospital- and community-acquired blood isolates.
Journal: Diagnostic Microbiology and Infectious Disease - Volume 69, Issue 4, April 2011, Pages 363–369