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KMID : 0357820160400020055
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Korean Journal of Legal Medicine
2016 Volume.40 No. 2 p.55 ~ p.60
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A Comparative Study of Postmortem Bacterial Culture and Identification Methods
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Na Joo-Young
Park Ji-Hye
Ham Suk-Hoon
Kim Hyung-Seok
Park Jong-Tae
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Abstract
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Postmortem bacterial culture can be valuable for investigating deaths and determining the cause of death. However, there are many concerns regarding postmortem bacterial culture such as postmortem transmigration and agonal spread of bacteria. The two main methods for identification of the bacteria are biochemical and genetic methods. In Korea, the genetic method has been used for postmortem bacterial culture and identification in forensic medicine. However, there is a lack of consensus on the method to be used for postmortem bacterial culture and identification. Herein, we compared the genetic and biochemical methods of postmortem bacterial culture in autopsy practice. Both analyses were performed on the same samples. Bacteria were identified in 28 of the 34 cases (82.4%). Of the 74 comparable samples, only 28 (37.8%) showed consistent results by both methods. In addition, the biochemical method had a shorter reporting time and was more sensitive. In conclusion, we analyzed the causes of the inconsistency between the two methods and provided appropriate conditions and protocols for postmortem bacterial culture and identification.
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KEYWORD
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Postmortem, Bacteria, Biochemical processes, Genetic processes
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