JOURNAL ARTICLE
OBSERVATIONAL STUDY
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Sepsis in standard care: patients' characteristics, effectiveness of antimicrobial therapy and patient outcome--a cohort study.

Infection 2015 June
PURPOSE: Fast diagnosis and initiation of appropriate antibiotic therapy is pivotal for the survival of sepsis patients. However, most studies on suspected sepsis patients are conducted in the intensive care unit or in the emergency room setting, neglecting the standard care setting. This study evaluated sepsis risk factors, microbiological accurateness of the initial empiric antimicrobial therapy and its effect on hospital mortality in standard care patients.

METHODS: In this prospective observational cohort study, patients with clinically suspected sepsis meeting two or more SIRS criteria were screened on standard care wards. After hospital discharge, occurrence of an infection was assessed according to standardized criteria, and empirical antibiotic therapy was evaluated using antibiograms of recognized pathogens by expert review.

RESULTS: Of the 2384 screened patients, 298 fulfilled two or more SIRS criteria. Among these were 28.2 % SIRS patients without infection, 46.3 % non-bacteremic/fungemic sepsis patients and 25.5 % bacteremic/fungemic sepsis patients. Occurrence of a malignant disease and chills were associated with a higher risk of patients having bacteremic/fungemic sepsis, whereas other described risk factors remained insignificant. In total, 91.1 % of suspected sepsis patients received empirical antimicrobial therapy, but 41.1 % of bacteremic sepsis patients received inappropriate therapy. Non-surviving bacteremic sepsis patients received a higher proportion of inappropriate therapy than those who survived (p = 0.022).

CONCLUSIONS: A significant proportion of bacteremic sepsis patients receive inappropriate empiric antimicrobial therapy. Our results indicate that rapid availability of microbiological results is vital, since inappropriate antimicrobial therapy tended to increase the hospital mortality of sepsis patients.

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