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Ⅰ.は じ め に
一般にくも膜下出血患者の予後は不良であり,1/3から半数の患者が死亡すると言われている.厚生労働省の統計上,くも膜下出血を主死因とする死亡者数は近年微増傾向にある3)が,海外ではくも膜下出血発症者の死亡率が徐々に低下しているとの報告2,5)もある.今回われわれは,過去10年間のくも膜下出血患者から死亡例を抽出し,頻度,年齢,死亡原因,神経学的重症度,脳血管攣縮の有無などの関連因子について経時的な検討を行った.
We retrospectively reviewed the mortality rate of the patients with subarachnoid hemorrhage (SAH) who received initial treatment in Kurashiki Central Hospital, for the 10-year period from 1999 through 2008. The overall mortality was 18.1% (120/662). The average fatality rate in such cases has shown a decreasing trend, from 24.2% in 1999-2002 to 15.9% in 2005-2008 (p=0.016). Transition in initial diagnostic modality from the time-consuming digital subtraction angiography to the less-invasive computed tomographic angiography, appropriate indication for the operation, and improvement in postoperative management might affect this decline in fatality cases.
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