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Sudden death after facial impacts: Is the brainstem involved?
L Tuchtan1, C Delteil1, Y Godio-Raboutet2
1Forensic Department, APHM, Hôpital de la Timone, 264, rue Saint-Pierre, 13385 Marseille, France; CNRS, EFS, ADES, Aix-Marseille University, 27, avenue Jean-Moulin, 13385 Marseille, France.
Morphologie : Bulletin De L'Association Des Anatomistes
|August 17, 2021
Summary
Facial impacts can cause fatal brain injuries, even without visible external trauma. Comprehensive forensic pathology and toxicology are crucial for determining cause of death in these medicolegal cases.
Area of Science:
- Forensic Medicine
- Neuropathology
- Toxicology
Background:
- Facial impacts, even low-intensity ones during altercations, can lead to severe brain injuries.
- Establishing a direct link between impact force and fatal outcome is challenging in criminal cases.
- Autopsies may not reveal the cause of death if brain lesions are only visible pathologically.
Observation:
- Three cases of death after facial impacts with witness accounts were studied.
- Brain lesions were identified solely through pathological examination.
- Head hyperextension during facial impact can transmit forces to the brain.
Findings:
- Death may result from reflex mechanisms (e.g., vagal hyperstimulation) or direct central nervous system injury (axonal damage).
- External examination and superficial incisions may not show evidence of fatal injury.
- Subtle brain lesions require detailed pathological and toxicological analysis.
Implications:
- Autopsy alone is insufficient to determine cause of death in certain facial impact cases.
- Comprehensive investigation including pathology and toxicology is essential for accurate medicolegal interpretation.
- This highlights the need for advanced diagnostic methods in forensic investigations of violent trauma.
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