Iwasaki Y, Yashiki M, Namera A, Miyazaki T, Kojima T
Department of Legal Medicine, Hiroshima University School of Medicine, Japan.
Forensic Sci Int. 1998 Jun 8;94(1-2):111-8. doi: 10.1016/s0379-0738(98)00063-2.
Alcohol concentrations in the mixed left and right heart blood, urine and stomach contents of 186 cadavers were analyzed by gas chromatography in order to find the influence of postmortem diffusion of alcohol from the stomach contents to the heart blood. In 39 cases where blood alcohol concentrations (BACs) were less than 0.10 mg/g, alcohol in the stomach contents was suggested to be due to postmortem production, and the postmortem diffusion of alcohol from the stomach contents to the heart blood was less than 10%. In 147 where BACs were 0.10 mg/g and more, ratios of BAC to urine alcohol concentration (UAC) were 1.0 and more in 47 cases (32%), and less than 1.0 in 100 cases (68%). In 17 of these 147 cases, alcohol concentrations in stomach contents (SACs) were more than ten times as high as BACs. Where the highest ratio of SAC/BAC was 60.1, the BAC of 0.14 mg/g was suspected to be due to drinking. In the case where the highest SAC was 50.8 mg/g, the BAC of 5.18 mg/g, the highest in this study, seemed to be little affected by the diffusion. These results suggest that it is important to compare BAC, UAC and SAC to assess the influence of postmortem diffusion of alcohol from the stomach contents to the heart blood.
对186具尸体的左右混合心脏血液、尿液和胃内容物中的酒精浓度进行气相色谱分析，以探究死后酒精从胃内容物扩散至心脏血液的影响。在39例血液酒精浓度（BAC）低于0.10mg/g的案例中，胃内容物中的酒精被认为是死后产生的，且死后酒精从胃内容物扩散至心脏血液的比例低于10%。在147例BAC为0.10mg/g及以上的案例中，47例（32%）的BAC与尿液酒精浓度（UAC）之比为1.0及以上，100例（68%）低于1.0。在这147例中的17例中，胃内容物酒精浓度（SAC）比BAC高出十倍以上。最高SAC/BAC比为60.1时，0.14mg/g的BAC被怀疑是饮酒所致。在最高SAC为50.8mg/g的案例中，本研究中最高的5.18mg/g的BAC似乎受扩散影响较小。这些结果表明，比较BAC、UAC和SAC对于评估死后酒精从胃内容物扩散至心脏血液的影响很重要。
