| Traumatic Basal Subarachnoid Hemorrhage (Vertebral-Basilar Artery Injury) |
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Joong Seok Seo , Shin Mong Kang |
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Department of Forensic Medicine, National Institute of Scientific Investigation, Seoul, Korea |
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| Abstract |
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During the last few years the traumatic basal subar achnoid hemorrhage(SAH) has been recognized that blows to the neck, head and face can give rise to fatal SAH because of tearing of the intrathecal course of a vertebral artery or basilar artery. No doubt a number of SAH are due to rupture of non-aneur ysmal vessels or an aneur ysm too small to find, but unrecogni zed vertebral artery trauma would have accounted for remai nder. In these cases, there may be no external sign at all. Unfortunately the deep or lateral portion of neck is the area that is not routinely dissected at autopsy. This is probably why this syndrome was not recognized until a few years ago. The mechanisms of injury and hemorrhage have been inadequately explored and demonstrated due to absence of appropriate and adequate anatomi c dissection. According to the current literature on the traumatic basal SAH, the cause of death is now hypothesized to have been a tear in the vertebral ar tery associated with hyperextensi on and rotation. |
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