Clément Renaud, Guay Jean-Pierre, Redpath Margaret, Sauvageau Anny
Laboratoire de sciences judiciaires et de médecine légale, Montreal, Canada.
Am J Forensic Med Pathol. 2011 Dec;32(4):378-82. doi: 10.1097/PAF.0b013e3181db7ecf.
Petechiae, one of the classic signs of asphyxia, are thought to be more frequently observed in cases of hanging where part of the body is supporting the victim's weight, ie, cases of incomplete hanging. However, there is very little evidence-based medicine to support this claim. The present study is intended to evaluate the relationship between petechiae and the type of hanging (complete vs. incomplete). Furthermore, several other variables were analyzed to determine if they contribute significantly to the presence of petechiae. An 8.5-year retrospective study of 206 cases of death by hanging reviewed autopsy reports for the presence of petechiae. For each case, the following information was also compiled: gender and age, height and weight, body mass index, the type of hanging (complete or incomplete suspension), the type of ligature used (narrow or wide), and whether or not the victim had received cardiopulmonary resuscitation maneuvers. Statistical analysis revealed that the incidence was higher among incomplete hanging victims compared with cases of complete suspension and that the incidence of petechiae varied inversely with the height of the victims. The other factors were not shown to contribute significantly to the presence of petechiae.
瘀点是窒息的典型体征之一，据认为在部分身体支撑受害者体重的缢死案例中，即不完全缢死的案例中，更常观察到瘀点。然而，几乎没有循证医学证据支持这一说法。本研究旨在评估瘀点与缢死类型（完全缢死与不完全缢死）之间的关系。此外，还分析了其他几个变量，以确定它们是否对瘀点的出现有显著影响。一项对206例缢死死亡案例的8.5年回顾性研究，审查了尸检报告中瘀点的情况。对于每个案例，还收集了以下信息：性别和年龄、身高和体重、体重指数、缢死类型（完全悬吊或不完全悬吊）、使用的绳索类型（窄或宽），以及受害者是否接受过心肺复苏操作。统计分析显示，与完全悬吊案例相比，不完全悬吊受害者中瘀点的发生率更高，且瘀点的发生率与受害者身高呈反比。其他因素未显示对瘀点的出现有显著影响。
