2011年における鹿児島県の浴室内突然死例の検討 : 死後CT検査導入による検案時の死因判定の変化について

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  • 2011ネン ニ オケル カゴシマケン ノ ヨクシツ ナイ トツゼンシレイ ノ ケントウ : シゴ CT ケンサ ドウニュウ ニ ヨル ケンアンジ ノ シイン ハンテイ ノ ヘンカ ニ ツイテ

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Cases of sudden death in the bath in Kagoshima Prefecture in 2011 were investigated. The total number of cases was 226 (112 males and 114 females), which corresponds to a crude mortality rate of 13.3 per 100,000 person-year. The rate was the highest of the past 6 years. As reported previously, many of the deaths (55.3%) occurred during the winter. The mean ambient temperature of Kagoshima City for the year, as well as that for the winter, was the lowest of the past 6 years. In addition, most of the deaths (88.1%) occurred in the elderly population (aged ≧ 65 years), which has been increasing in Kagoshima Prefecture. The lower ambient temperature and the shift to aging of the society may explain the increased mortality rate of sudden death in the bath in 2011. We compared the cause of death recorded on the death certificate between cases subjected to postmortem computed tomography (CT) scanning were performed (CT cases) and non-CT cases in 2009-2011. The incidence ratio of drowning cases was significantly higher in CT cases than in non-CT cases. In contrast, the incidence ratio of cardiovascular disease cases was significantly lower in non-CT cases than in CT cases. In order to make an appropriate preventive plan for the incidence of sudden death in the bath, it is necessary to determine the accurate cause and the pathological mechanisms of each death by accumulating evidence from autopsy.

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