道路交通事故中不典型挤压性窒息死因分析

Analysis of death cause: atypical asphyxia aue to overlay in traffic accident

目的分析道路交通事故中不典型挤压性窒息致死案例,探讨道路交通事故中不典型挤压性窒息死亡案件中的法医学鉴定要点。方法分析2例道路交通事故中不典型挤压性窒息致死案例的现场调查、尸表检验、解剖检验、病理组织学检验及法医毒化分析检验结果,总结道路交通事故中不典型挤压性窒息致死案件的法医病理学鉴定要点及注意事项。结果死者均于夜间因道路交通事故致电动三轮摩托车翻覆至路旁沟渠中挤压其胸背部及面颈部,事发现场天气寒冷(均低于0℃)。现场调查得知案件中尸表检验均可见与现场车辆压迫相对应的压痕,但解剖检验结果均未发现明显的皮下、肌肉、骨骼及内脏损伤。双肺均有不同程度的淤血及水肿表现,其中一例男性死者心血酒精检验为377.7mg/100ml,此外尸检未查见其他致死性疾病及损伤。结论道路交通事故中不典型挤压性窒息的体表损伤程度较轻,须综合现场所有重要因素,综合分析确证并排除各方面因素后再做出死因判定。

Objective In order to further review forensic pathology key points of atypical asphyxia due to overlay of death cases in traffic accident, we reported several death cases of atypical asphyxia due to overlay in traffic accident. Methods We analysized several death cases of overlay in traffic accident including accident scene investigation, body surface examination, autopsy examination, histopathology examination, forensic toxicology analysis ,and then tried to find out forensic pathology key points of atypical asphyxia due to o- verlay of death cases in traffic accident. Results The cases died in traffic accident at night when the electrical tricycle overturned out of the road and overlay onto the chest, back, neck or face. In addition, the temperature of the accident scene is under 0 ℃. The obvious compression marks were found on the body during the accident scene investigation, but no apparent subcutaneous, muscular, skeletal or organic injuries. All of cases were observed pulmonary anoxia and edema. The blood alcohol examination of male specimen was 377.7mg/ 100ml. There were no other fetal diseases or injuries during the rest forensic examination. Conclusion The mechanical injuries of the deaths are slightly in atypical asphyxia due to overlay in traffic accident. We must take all the parameters that might be involved in the death cause ,and rule in or rule out the related matters before drawing the final conclusion.