Muggenthaler H, Hubig M, Schenkl S, Mall G
Institute of Forensic Medicine, Jena University Hospital - Friedrich Schiller University Jena, Germany.
Institute of Forensic Medicine, Jena University Hospital - Friedrich Schiller University Jena, Germany.
Leg Med (Tokyo). 2017 Sep;28:10-14. doi: 10.1016/j.legalmed.2017.06.005. Epub 2017 Jun 27.
Numerous physiological and pathological mechanisms can cause elevated or lowered body core temperatures. Deviations from the physiological level of about 37°C can influence temperature based death time estimations. However, it has not been investigated by means of thermodynamics, to which extent hypo- and hyperthermia bias death time estimates. Using numerical simulation, the present study investigates the errors inherent in temperature based death time estimation in case of elevated or lowered body core temperatures before death. The most considerable errors with regard to the normothermic model occur in the first few hours post-mortem. With decreasing body core temperature and increasing post-mortem time the error diminishes and stagnates at a nearly constant level.
许多生理和病理机制可导致人体核心温度升高或降低。偏离约37°C的生理水平会影响基于温度的死亡时间估计。然而，尚未通过热力学方法研究体温过低和过高对死亡时间估计的偏差程度。本研究采用数值模拟方法，调查了死亡前人体核心温度升高或降低情况下基于温度的死亡时间估计中固有的误差。与正常体温模型相比，最显著的误差出现在死后的最初几个小时。随着人体核心温度的降低和死后时间的增加，误差减小并在接近恒定的水平上趋于稳定。
