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JOURNAL ARTICLE
OBSERVATIONAL STUDY
Impact of inadequate initial antimicrobial therapy on mortality in patients with bacteraemic cholangitis: a retrospective cohort study.
Clinical Microbiology and Infection 2017 October
OBJECTIVES: Acute cholangitis is a common cause of bacteraemia resulting in severe sepsis or septic shock. The impact of the appropriate initial antimicrobial therapy on short-term mortality in bacteraemic cholangitis has not been well investigated.
METHODS: We conducted a retrospective cohort study of patients with bacteraemic cholangitis at two large tertiary care centres in Tokyo, Japan between 2009 and 2015. We determined the factors associated with 30-day all-cause mortality from the date of drawing the first positive blood culture, using a multivariate logistic regression analysis.
RESULTS: We identified 573 patients with bacteraemic cholangitis (median age, 77 years; male, 58.3%). The 30-day all-cause mortality rate was 6.6% (38/573). Inadequate initial antimicrobial therapy occurred in 133 (23.2%) patients. Factors associated with 30-day all-cause mortality included the Charlson co-morbidity index score >3 (adjusted odds ratio (aOR) 4.12; 95% CI 1.18-14.38), jaundice (total bilirubin >2.5 mg/dL) (aOR 3.39; 95% CI 1.46-7.89), septic shock within 48 h of the first positive blood culture (aOR 3.34; 95% CI 1.42-7.89), biliary obstruction due to hepatobiliary malignancy (aOR 8.00; 95% CI 2.92-21.97), and inadequate initial antimicrobial therapy (aOR 2.78; 95% CI 1.27-6.11).
CONCLUSIONS: Inadequate initial antimicrobial therapy was an important, modifiable determinant of survival.
METHODS: We conducted a retrospective cohort study of patients with bacteraemic cholangitis at two large tertiary care centres in Tokyo, Japan between 2009 and 2015. We determined the factors associated with 30-day all-cause mortality from the date of drawing the first positive blood culture, using a multivariate logistic regression analysis.
RESULTS: We identified 573 patients with bacteraemic cholangitis (median age, 77 years; male, 58.3%). The 30-day all-cause mortality rate was 6.6% (38/573). Inadequate initial antimicrobial therapy occurred in 133 (23.2%) patients. Factors associated with 30-day all-cause mortality included the Charlson co-morbidity index score >3 (adjusted odds ratio (aOR) 4.12; 95% CI 1.18-14.38), jaundice (total bilirubin >2.5 mg/dL) (aOR 3.39; 95% CI 1.46-7.89), septic shock within 48 h of the first positive blood culture (aOR 3.34; 95% CI 1.42-7.89), biliary obstruction due to hepatobiliary malignancy (aOR 8.00; 95% CI 2.92-21.97), and inadequate initial antimicrobial therapy (aOR 2.78; 95% CI 1.27-6.11).
CONCLUSIONS: Inadequate initial antimicrobial therapy was an important, modifiable determinant of survival.
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