固定双上肢并悬挂家兔死亡机理的研究 |
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引用本文: | 姜富学,欧桂生,竞花兰,廖信彪,张宜骏,余彦耿,成建定,李朝晖. 固定双上肢并悬挂家兔死亡机理的研究[J]. 中国法医学杂志, 2006, 21(2): 68-70 |
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作者姓名: | 姜富学 欧桂生 竞花兰 廖信彪 张宜骏 余彦耿 成建定 李朝晖 |
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作者单位: | 1. 中山大学中山医学院法医学系,广东,广州,510089;广州市刑事科学技术研究所,广东,广州,510030 2. 广东省公安厅刑事科学技术研究所,广东,广州,510050 3. 中山大学中山医学院法医学系,广东,广州,510089 |
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基金项目: | 广东省科技厅科研项目;公安部科研项目 |
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摘 要: | 目的观测固定双上肢并悬挂家兔的血气变化及膈肌的肌电变化,探讨体位性窒息死亡的发生机制。方法建立家兔体位性窒息死模型,在实验前、后分别抽取家兔耳缘动脉和左心室血2m l进行血气分析,并监测实验过程中家兔膈肌肌电图(EMGd i)的变化。结果实验组与对照组均有缺氧、二氧化碳储留以及氧饱和度下降,但是实验组的二氧化碳储留比对照组低,氧饱和度比对照组高,缺氧情况比对照组低。在连续记录的EMGd i中,早期EMGd i较晚期EMGd i的高频与低频(H/L)比值显著降低,超过20%。结论固定双上肢并悬挂家兔死亡与膈肌疲劳导致缺氧窒息有关
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关 键 词: | 法医病理学 体位性窒息 膈肌疲劳 血气分析 肌电变化 |
文章编号: | 1001-5728(2006)02-0068-03 |
修稿时间: | 2004-09-02 |
Study on the mechanism in death from hanging by bound limbs in rabbits |
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Abstract: | Objective To study the mechanism in death from positional asphyxia by determination of blood-gas and record of diaphragmatic electromyogram(EMGdi) in rabbits hanged by bound limbs.Methods After model of the positional asphyxia death was established,blood-gas analysis was conducted in both the experimental and control groups.During the experiment course,EMGdi was continuously monitored.Results Decrease in PaO_2 and SaO_2 and increase in PaCO_2 were detected in both the experimental and control animals.But the increase in PaCO_2 in experimental group was less than that in control group,and the decrease in PaO_2 and SaO_2 in the experimental group is less than in the control group.By analyzing the ratio of high to low frequency in EMGdi between pre-and post-experiment,it is noted that there was a significant decrease of the ratio of H/L,which exceeded 20%.Conclusion Death in the rabbits hang with bound limbs is associated with asphyxia which may be caused by diaphgram fatigue. |
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Keywords: | Forensic pathology Positional asphyxia Diaphragm fatigue Blood-gas EMGdi |
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