Unusual form of accidental mechanical asphyxia

Area of Science:

• Forensic Pathology
• Accident Investigation

Background:

• Mechanical asphyxia is a significant cause of accidental death.
• Atypical strangulation cases are rarely documented in forensic literature.

Observation:

• A 46-year-old male sustained fatal injuries trapped between automatic doors.
• External examination revealed an incomplete ligature mark and abrasions on the neck.
• Autopsy showed signs of asphyxia, hyoid-laryngeal complex fractures, and neck soft tissue bruising.

Findings:

• The cause of death was determined to be mechanical asphyxia, specifically atypical strangulation and hanging.
• Alcohol was present, but toxicology was otherwise negative.
• Stimulation of baroreceptor nerve endings in the carotid sinus and sheath was a likely contributing factor.

Implications:

• This case underscores the potential for fatal accidental strangulation in everyday environments.
• Highlights the importance of considering baroreceptor reflex in mechanical asphyxia deaths.
• Contributes to the limited literature on unusual forms of accidental asphyxia.