Fracture of Temporal Bone With Exsanguination: Pathology and Mechanism
Autor: | J.H.N. Deck, B. Blenkinsop, M.S. Pollanen, E.M. Farkas |
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Rok vydání: | 1992 |
Předmět: |
Pathology
medicine.medical_specialty business.industry Head injury Autopsy General Medicine Anatomy medicine.disease Surgery Skull medicine.anatomical_structure Blunt Neurology Skull fracture medicine.artery Temporal bone otorhinolaryngologic diseases Middle ear Medicine Neurology (clinical) Internal carotid artery business |
Zdroj: | Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques. 19:196-200 |
ISSN: | 2057-0155 0317-1671 |
Popis: | Eight cases of basal skull fracture with transverse fracture of the petrous temporal bone with medial extension to the internal carotid artery and lateral extension of the structures of the middle ear are described. Injuries in all cases were due to major blunt impact to the head usually occurring in a motor vehicle accident. General autopsy revealed major blood loss without any obvious external or internal site of hemorrhage suggesting that exsanguination was a complication of the head injury. The internal carotid arteries at the most medial extension of the fractures were lacerated or transected in all cases. In selected cases, the cervical internal carotid arteries were perfused and perfusate escaped rapidly from the ear(s) with the majority of fluid bypassing the cerebral venous system. Magnetic resonance image reconstruction of sequential sections of the fractured base of the skull confirmed the laceration of the internal carotid arteries and disruption of the middle ear. Based on this evidence, we propose that some displaced fractures of the base of the skull produce carotid-middle ear continuities which act as arterial shunts, resulting in rapid fatal exsanguination through the ear. |
Databáze: | OpenAIRE |
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