Fa yi xue za zhi
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Positional asphyxia of restraint means that when an individual was limited in an abnormal body position, asphyxia would take place owing to the disorder of spontaneous respiratory function, and finally it lead to die. So, it belongs to a special type of the mechanical asphyxia. From the cases reported, we could found that it would take place in several conditions. ⋯ Following the more cases reported, many experts of forensic medicine had investigated it on the mechanism of death and the standard of identification, but they could not reach to agreements. So, they have changed the directions of the researches, began to value the factors of risk and research how to avoid it. In the following text, the mechanism of death, factors of risk, preventive methods, standard of identification and prospecting of positional asphyxia of restraint were reviewed.
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We discovered that the surface area and the length of body wounds or scar can not be calculated each other in the existing standards. It may be unfair to some assessments of body surface impairment. It is necessary to raise a means to solve this problem and provide the reference for the colleague.