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題 名 | Time to Positivity in Blood Cultures of Adults with Nontyphoidal Salmonella Bacteremia |
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作 者 | Lin, Hui-wen; Hsu, Hsin-sui; Huang, Yu-tsung; Yang, Chia-jui; Hsu, Meng-shiuan; Liao, Chun-hsing; | 書刊名 | Journal of Microbiology, Immunology and Infection |
卷 期 | 49:3 2016.06[民105.06] |
頁 次 | 頁417-423 |
分類號 | 415.27 |
關鍵詞 | Bacteremia; Nontyphoidal Salmonella; Time to positivity; |
語 文 | 英文(English) |
英文摘要 | Background: Nontyphoidal Salmonella (NTS) is an important bacterial etiology of diarrheal disease, and it causes invasive diseases inimmunocompromised hosts. For bacteremia fromsome species, blood culture with a rapid time to positivity (TTP) is associated with greater mortality. This study investigatedTTPofNTS bacteremia and its relationship to clinical parameters and prognosis. Methods: Adult patients with NTS bacteremia who were admitted to a tertiary care facility in northern Taiwan from January 2010 to December 2012 were enrolled. Demographics, clinical andmicrobiological characteristics, and treatment responsewere reviewed. The TTP for each patient was retrieved from the automated machine. Results: Sixty-six adult patients (mean age, 66.1 years; range, 27e96 years) with NTS bacteremia were identified by the following serogroup distributions: serogroup B (23.4%), serogroup C1 (1.6%), serogroup C2 (6.3%), and serogroup D (68.8%). The in-hospital mortality, 14-day mortality, and 30-day mortality were 15.2%, 7.6%, and 12.1%, respectively. The TTP ranged 6.5e41.7 hours (median: 11.5 hours). Patientswith rapid TTP (less than 10 hours), compared to patientswithout rapid TTP, were more likely to have liver cirrhosis (31.6% vs. 6.4%, p Z 0.013), endovascular lesions (21.1% vs. 4.3%, p Z 0.05), higher bacteremia score, intensive care unit admission (57.9% vs. 25.5%, pZ0.021), and septic shock (63.2% vs. 12.8%, p < 0.001). There were no significant differences in the in-hospital mortality and 14-day mortality between patients with TTP <10 hours and patients with TTP _10 hours. Conclusion: The TTP of blood cultures, interpreted with a cut-off point of <10 hours, in patients with NTS bacteremia may provide useful diagnostic and prognostic information. |
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