信州大学医学部附属病院における血液培養検査の陽性率と検出菌の年次別検討

概要

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Blood-stream infections (BSIs) are prevalent in critical care settings and are associated with a high attributable morbidity and mortality. Blood culture is one of the most important tests to detect and identify the pathogens causing BSI. In this study, we performed a retrospective case series analysis of 644 laboratoryconfirmed episodes of bacteraemia at Shinshu University Hospital between 1 July 2001 and 31 December 2005. Although bacterial culture examinations decreased in number during these 5 years, blood cultures gradually increased. Positive rates went up from 8.1％ to 12.6％. The most commonly isolated microorganisms were coagulase-negative staphylococci (CNS)(23.1％), Staphylococcus aureus (14.7％), Klebsiella species(9.3％) and Escherichia coli (9.1％). Staphylococcus species accounted for 37.8％ of all microorganisms detected. The proportion of the microorganisms did not change remarkably during the study period. The microorganisms commonly cultured were different among the departments because infected sites were specific for each department. Blood culture is a valuable examination to identify causable microorganisms in any bacterial infection.
信州医学会の論文