A Fatal Tracheal Impalement Injury: An Accidental Fall from a Height or Suicidal Event? A Case Report and Review of the Literature

Abstract

Learning Objectives: Following this presentation, attendees will have gained a comprehensive understanding of impalement-related deaths and their mechanisms. Emphasis will be placed on the value of a multidisciplinary approach to case analysis Impact Statement: This presentation contributes to the forensic science community by underscoring the importance of meticulous crime scene inspection and a multidisciplinary forensic approach to the body, raising critical questions concerning the accidental versus suicidal nature of impalement events as well as implications for occupational safety and prevention. A comparative evaluation with current literature enhances the discussion and informs forensic practice. Introduction. Site inspections represent the initial and irreplicable step in corpse recovery. The involvement of a forensic pathologist in the early phases of investigation is crucial to ensure accurate collection of evidence and data. Impalement fatalities are rare in medico-legal practice.1 A literature review was conducted to explore the spectrum of injuries and scenarios that may lead to fatal or near-fatal impalement. 2 Case Report. A57-year-old male construction worker was found deceased at the base of a scaffold, exhibiting a penetrating injury to the anterior neck. Forensic examination of the scene revealed an iron stake, typically a plant support, with blood on its upper end, morphologically consistent with the neck wound. Autopsy, histological, toxicological, and instrumental analyses determined the cause of death to be passive impalement trauma to the anterior neck, resulting in tracheal rupture. Surveillance footage corroborated the accidental fall from the scaffold and the immediate, self-removal of the iron stake post-injury. Toxicology revealed blood alcohol positivity. Conclusion. This case highlights the diagnostic complexity of passive impalement trauma, as illustrated through comparative analysis and supported by existing medical literature. It emphasizes the critical role of forensic crime scene reconstruction in differentiating accidental events from suicidal acts. The multidisciplinary integration of pathology, toxicology, and video analysis proved essential in elucidating the sequence of events and determining the cause of death. Furthermore, the findings underscore the importance of stringent workplace safety measures and reinforce the value of interprofessional collaboration in forensic investigations. References: 1. Byard RW. A forensic evaluation of impalement injuries. Med Sci Law. 2018 Apr;58(2):85-92. doi: 10.1177/0025802418755588. Epub 2018 Jan 24. PMID: 29363383. 2. Padoan A.et al. Impalement injuries in forensic pathology: case studies and literature review. Legal Medicine. 2021.