Yamasaki Shigeru, Kobayashi Aki K, Nishi Katsuji
Department of Legal Medicine, Shiga University of Medical Science, Seta Tukinowa-cho, Otsu, 520-2912, Shiga, Japan,
Forensic Sci Med Pathol. 2007 Mar;3(1):45-51. doi: 10.1385/FSMP:3:1:45.
Most evaluations of the pathophysiological processes of suicidal hangings are based on animal experiments and only a few have examined the hanging process. The little information available is mostly the result of animal experiments that have focused on tracheal obstructions. In the study presented here, a camcorder was set up by the victim to record the entire hanging process. According to the analysis from the recording, the complete asphyxial process lasted only 2 minutes and 43 seconds. Stage 1 (the prodromal stage) was especially short. Typical convulsions were not observed in this case. Body movements, such as clonic and tonic spasms, were not noticed in stage 2 (the dyspnea stage). Because the body did not touch the ground, the pressure on the neck by the ligature caused cerebral ischemia as a result of the obstruction of the neck vessels. Consequently, it can be hypothesized that sui cide by hanging may not be based on the effect of changed concentration in the blood of carbon dioxide and oxygen, but on the effect of cerebral ischemia.
大多数关于自杀性缢吊病理生理过程的评估都基于动物实验，仅有少数研究对缢吊过程进行了考察。现有的少量信息大多来自聚焦于气管阻塞的动物实验。在本研究中，受害者自行设置了一台摄像机来记录整个缢吊过程。根据录像分析，整个窒息过程仅持续了2分43秒。第一阶段（前驱期）尤为短暂。该案例中未观察到典型的抽搐症状。在第二阶段（呼吸困难期）未注意到身体出现阵挛性和强直性痉挛等身体动作。由于身体未接触地面，绳索对颈部的压迫导致颈部血管阻塞，进而引起脑缺血。因此，可以推测自杀性缢吊可能并非基于血液中二氧化碳和氧气浓度变化的影响，而是基于脑缺血的影响。
