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Performance of the FilmArray Blood culture identification panel in positive blood culture bottles and cerebrospinal fluid for the diagnosis of sepsis and meningitis

機譯：FilmArray血培養(yǎng)識別面板在陽性血培養(yǎng)瓶和腦脊液中對敗血癥和腦膜炎的診斷性能

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Sepsis and meningitis are life threatening medical conditions. Culture-based methods are used for identification of the causative pathogens, but they can be improved by implementation of additional test systems. We evaluated the performance of the novel FilmArray blood culture identification (BCID; Biofire Diagnostics) panel for rapid and accurate identification of microorganisms in positive blood cultures and additionally, in this cerebrospinal fluid (CSF) pilot study for direct testing of CSF. A total of 107 positive blood cultures and 20 CSF samples (positive and negative) were investigated and compared to the routine procedures. Of the 107 positive blood cultures, 90.7% (97/107) showed monomicrobial growth and 9.3% (10/107) polymicrobial growth. The FilmArray BCID panel covered 89.3% (25/28) of the bacteria and 100% (2/2) of the yeasts found in this study and accurately identified all of them.From the 20 retrospective analyzed CSF, in 9 positive specimens 6 different bacterial species were identified. Discrepant identification results were found in 25% (5/20) and a low sensitivity of 50% (95% CI of 15.7% to 84.3%) was detected.Our study confirms the FilmArray BCID panel as a rapid, easy to handle PCR system with a good performance in positive blood cultures without Gram-staining result. However, our results additionally suggest that the system is not useful for direct CSF testing due to poor sensitivity.
機譯：敗血癥和腦膜炎是危及生命的醫(yī)學(xué)疾病?；谂囵B(yǎng)的方法可用于確定病原體，但是可以通過實施其他測試系統(tǒng)來加以改進。我們評估了新型FilmArray血液培養(yǎng)物鑒定（BCID; Biofire Diagnostics）面板的性能，可快速，準確地鑒定陽性血液培養(yǎng)物中的微生物，此外，該腦脊液（CSF）初步研究還用于直接測試CSF?？偣舱{(diào)查了107種陽性血液培養(yǎng)物和20種CSF樣品（陽性和陰性），并與常規(guī)程序進行了比較。在107種陽性血液培養(yǎng)物中，90.7％（97/107）表現(xiàn)出單微生物生長，而9.3％（10/107）表現(xiàn)出多微生物生長。 FilmArray BCID面板覆蓋了本研究中發(fā)現(xiàn)的89.3％（25/28）細菌和100％（2/2）酵母，并準確識別了所有細菌。從20份回顧性CSF中，在9個陽性樣本中有6種不同確定細菌種類。鑒定結(jié)果的差異為25％（5/20），靈敏度低至50％（95％CI為15.7％至84.3％）。我們的研究證實FilmArray BCID板是一種快速，易于操作的PCR系統(tǒng)在陽性血液培養(yǎng)中表現(xiàn)良好，沒有革蘭氏染色結(jié)果。但是，我們的結(jié)果還表明，由于靈敏度低，該系統(tǒng)不能用于直接CSF測試。

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