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  • Title: Spinal cord damage in surgery of the abdominal aorta.
    Author: Szilagyi DE, Hageman JH, Smith RF, Elliott JP.
    Journal: Surgery; 1978 Jan; 83(1):38-56. PubMed ID: 619471.
    Abstract:
    The incidence, etiology, and clinical manifestations of spinal cord damage after abdominal aortic operations and abdominal aortography are defined on grounds of the authors' experience and of a survey of the pertinent literature. In the authors' experience the incidence of cord damage was 0.25% (three of 3,164) after abdominal aortic operations and 0.01% (two of 17,494) after abdominal aortography. As regards postoperative cord complications in the authors' series, they occurred only in cases of aneurysm, were 10 times more common in ruptured than in unruptured aneurysms, and the neurological loss usually was complete flaccid paraplegia (five of eight or 62%) with high mortality (three of eight or 38%), and rare partial (two of eight or 25%) or complete (one of eight or 13%) recovery. Recovery was more likely the lesser than neurological loss. The cause of postoperative spinal cord damage was ischemia resulting from the interruption of a critical radicular artery at the lower thoracic or high lumbar vertebral levels in the presence of anomalously located greater radicular or infrarenal radicular arteries. High aortic clamping and hypotension increased the probability of this occurrence, which essentially was unpredictable and, therefore, unavoidable. In postartographic cases the cord damage is more variable in its extent, and its cause is a chemical insult brought about by flooding the anterior spinal artery with contrast medium to which the patient probably is hypersensitive. In both groups treatment of the established clinical picture (paraplegia) is confined to support and rehabilitation.
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