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題名 Survival of Patients With Vancomycin-Resistant Enterococcus faecium Bacteremia Treated With Conventional or High Doses of Daptomycin or Linezolid Is Associated With the Rate of Bacterial Clearance
作者 Chuang, Yu-Chung;Lin, Hsin-Yi;Chen, Pao-Yu;Lin, Chi-Ying;Chen, Yee-Chun;Wang, Jann-Tay;Chang, Shan-Chwen
林馨怡
Lin, Hsin-Yi
貢獻者 經濟系
日期 2018-10
上傳時間 13-Sep-2018 17:56:02 (UTC+8)
摘要 OBJECTIVES:
     Vancomycin-resistant enterococci are important pathogens for healthcare-associated infections. Although linezolid is bacteriostatic and daptomycin is rapidly bactericidal against vancomycin-resistant enterococci in vitro, it is not clear whether they differ in their effect on bacterial clearance in patients with vancomycin-resistant enterococci bloodstream infections.
     
     DESIGN:
     Prospective observational study.
     
     SETTING:
     Two university hospitals and research laboratory.
     
     PATIENTS:
     Patients with vancomycin-resistant enterococci bloodstream infection proven by blood cultures were prospectively enrolled from January 2010 to July 2015.
     
     INTERVENTIONS:
     Sequential blood samples were collected. Real-time quantitative polymerase chain reaction was used to monitor bacterial loads.
     
     MEASUREMENTS AND MAIN RESULTS:
     One hundred eight patients with vancomycin-resistant enterococci bloodstream infection were enrolled. Quantitative polymerase chain reaction assays were performed on 465 blood isolates. We found this method to be closely correlated with colony-forming units and more sensitive than culture. Sixty-three patients (58.3%) received "conventional dose" daptomycin (6-9 mg/kg), 15 (13.9%) received high-dose daptomycin (≥ 9 mg/kg), and 30 (27.8%) were treated with linezolid (600 mg every 12 hr) as sole agents. The initial mean bacterial load was 1.03 log10 copies/mL and unrelated to survival. Survivors had a more rapid early bacterial clearance than nonsurvivors (Δ log10 copies/mL/d; -0.16 vs 0.31; p = 0.02). Multivariable logistic regression showed that a slower early bacterial clearance independently predicted increased mortality (odds ratio, 3.21; 95% CI, 1.03-10.02; p = 0.045). Conventional dose daptomycin was associated with a significantly slower rate of bacterial clearance than high-dose daptomycin (Δ log10 copies/mL/d; -0.04 vs -0.41; p < 0.001) and linezolid (-0.04 vs -0.56; p = 0.043).
     
     CONCLUSIONS:
     We found that survivors of vancomycin-resistant enterococci bloodstream infection had a significantly more rapid early bacterial clearance by quantitative polymerase chain reaction than nonsurvivors. High-dose daptomycin and linezolid were associated with more rapid bacterial clearance than conventional dose daptomycin. These results support recommendations that conventional dose daptomycin not be used for the treatment of patients with vancomycin-resistant enterococci bloodstream infection.
關聯 Critical Care Medicine, 46(10), 1634–1642
資料類型 article
DOI https://doi.org/10.1097/CCM.0000000000003264
dc.contributor 經濟系-
dc.creator (作者) Chuang, Yu-Chung;Lin, Hsin-Yi;Chen, Pao-Yu;Lin, Chi-Ying;Chen, Yee-Chun;Wang, Jann-Tay;Chang, Shan-Chwenen_US
dc.creator (作者) 林馨怡zh_TW
dc.creator (作者) Lin, Hsin-Yien_US
dc.date (日期) 2018-10-
dc.date.accessioned 13-Sep-2018 17:56:02 (UTC+8)-
dc.date.available 13-Sep-2018 17:56:02 (UTC+8)-
dc.date.issued (上傳時間) 13-Sep-2018 17:56:02 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/120086-
dc.description.abstract (摘要) OBJECTIVES:
     Vancomycin-resistant enterococci are important pathogens for healthcare-associated infections. Although linezolid is bacteriostatic and daptomycin is rapidly bactericidal against vancomycin-resistant enterococci in vitro, it is not clear whether they differ in their effect on bacterial clearance in patients with vancomycin-resistant enterococci bloodstream infections.
     
     DESIGN:
     Prospective observational study.
     
     SETTING:
     Two university hospitals and research laboratory.
     
     PATIENTS:
     Patients with vancomycin-resistant enterococci bloodstream infection proven by blood cultures were prospectively enrolled from January 2010 to July 2015.
     
     INTERVENTIONS:
     Sequential blood samples were collected. Real-time quantitative polymerase chain reaction was used to monitor bacterial loads.
     
     MEASUREMENTS AND MAIN RESULTS:
     One hundred eight patients with vancomycin-resistant enterococci bloodstream infection were enrolled. Quantitative polymerase chain reaction assays were performed on 465 blood isolates. We found this method to be closely correlated with colony-forming units and more sensitive than culture. Sixty-three patients (58.3%) received "conventional dose" daptomycin (6-9 mg/kg), 15 (13.9%) received high-dose daptomycin (≥ 9 mg/kg), and 30 (27.8%) were treated with linezolid (600 mg every 12 hr) as sole agents. The initial mean bacterial load was 1.03 log10 copies/mL and unrelated to survival. Survivors had a more rapid early bacterial clearance than nonsurvivors (Δ log10 copies/mL/d; -0.16 vs 0.31; p = 0.02). Multivariable logistic regression showed that a slower early bacterial clearance independently predicted increased mortality (odds ratio, 3.21; 95% CI, 1.03-10.02; p = 0.045). Conventional dose daptomycin was associated with a significantly slower rate of bacterial clearance than high-dose daptomycin (Δ log10 copies/mL/d; -0.04 vs -0.41; p < 0.001) and linezolid (-0.04 vs -0.56; p = 0.043).
     
     CONCLUSIONS:
     We found that survivors of vancomycin-resistant enterococci bloodstream infection had a significantly more rapid early bacterial clearance by quantitative polymerase chain reaction than nonsurvivors. High-dose daptomycin and linezolid were associated with more rapid bacterial clearance than conventional dose daptomycin. These results support recommendations that conventional dose daptomycin not be used for the treatment of patients with vancomycin-resistant enterococci bloodstream infection.
en_US
dc.format.extent 108 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Critical Care Medicine, 46(10), 1634–1642-
dc.title (題名) Survival of Patients With Vancomycin-Resistant Enterococcus faecium Bacteremia Treated With Conventional or High Doses of Daptomycin or Linezolid Is Associated With the Rate of Bacterial Clearanceen_US
dc.type (資料類型) article-
dc.identifier.doi (DOI) 10.1097/CCM.0000000000003264-
dc.doi.uri (DOI) https://doi.org/10.1097/CCM.0000000000003264-