Vertebral Artery Laceration Mimicking Elder Abuse

Abstract

Elder abuse was first described almost 30 years ago. Today, approximately 1 in 25 elders is abused each year in the United States. A newly described form of domestic violence, the incidence of elder abuse will surely increase as the elderly population grows. Physical abuse/inflicted trauma is generally considered the most extreme form of elder mistreatment and includes blunt trauma, sexual assault, traumatic alopecia, and burns. Elder homicide is usually due to gunshot wounds, blunt trauma, stab wounds, or asphyxia. However, the difficult aspect of assessing the possible elder abuse homicide victim is delineating such inflicted trauma from accidental trauma. We report the case of a 94-year-old "demented" male, who reportedly fell out of his wheelchair. He was transported to a local emergency room, where he became unresponsive during examination. He experienced respiratory distress and was pronounced dead shortly thereafter. At autopsy, he had periorbital contusions and a midline abrasion between the eyes, with underlying supraorbital contusion. The skull, brain, and spinal cord were unremarkable for signs of trauma. The major traumatic finding was in the neck region. Neck dissection revealed hemorrhage extending from the base of the skull to the level of T-1 and anteriorly about the soft tissues, strap muscles, and vasculature. The strap muscles were individually examined and were free of hemorrhage. The carotid arteries and jugular veins were unremarkable. The larynx, hyoid, and thyroid were intact, with only surrounding hemorrhage. Further examination revealed a horizontal fracture of the C5 vertebral body and a medial laceration of the left vertebral artery at the C5 level; subarachnoid hemorrhage was absent. What initially appeared to be trauma to the neck, worrisome for strangulation or blunt force trauma, was a large retropharyngeal hematoma from the left vertebral artery laceration. Traumatic rupture of the vertebral artery usually occurs at the C1 and C2 levels, with resultant subarachnoid hemorrhage. This is an especially vulnerable location since it is where the artery turns and then enters the skull. Associated injuries include spinal cord transection or contusion, brachial plexus injury, pharyngoesophageal injury, and vertebral fractures. Retropharyngeal hemorrhage may result from deep neck infection, tumor, and trauma. Hemorrhage associated with trauma often involves flexion of the cervical spine, followed by hyperextension. The accumulation of blood slowly impinges on the pharynx/larynx and vasculature structures. The exact injuries and etiology of the hemorrhage must be determined to distinguish strangulation from blunt force trauma. The presentation of signs and symptoms can be helpful in assessing the decedent; however, in the practice of forensic pathology such a history is more often lacking.

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