Microorganisms causing pyogenic spondylitis: Comparison of community and hospital-acquired types
Abstract
Pyogenic spondylitis is a common infectious disease caused by various microorganisms. It is difficult to predict the infecting microorganism at the time of initiation of treatment. Pneumonia is generally clarified into community or hospitalacquired types based on where the infection was acquired, and the infecting microorganisms are different for each type. We retrospectively analyzed 20 cases of pyogenic spondylitis treated in our hospital and categorized the cases into community and hospital-acquired types. We also identified the infecting microorganisms and the rate of sepsis in each type. There were 12 cases of community-acquired and 8 of hospital-acquired infection. The major infecting microorganisms responsible for the community-acquired type were Gram-positive cocci, and those responsible for the hospital-acquired type were methicillinresistant Staphylococcus aureus and Gram-negative bacilli. The rate of sepsis was significantly different for both groups: 16% for the community-acquired type and 75% for the hospital-acquired type. The classification of pyogenic spondylitis based on where the infection was acquired may be useful for predicting which microorganisms are responsible for the disease.
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