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  • Title: A New Combined Technique Reducing the Risk of Paraplegia during Thoracoabdominal Aorta Replacement.
    Author: Tozzi P, Pralong E, Gronchi F, Siniscalchi G.
    Journal: Thorac Cardiovasc Surg; 2017 Mar; 65(2):126-129. PubMed ID: 27050813.
    Abstract:
    Acute spinal cord ischemia during thoracoabdominal aorta replacement is a dreadful complication. Existing tools (motor evoked potential [MEP] and somatosensory evoked potential [SSEP]) do not allow differentiating between central and peripheral paraplegia. Therefore, the surgeon often performs unnecessary reimplantation of intercostal arteries: this is time consuming, and significantly increases bleeding complications. We present a simple technique combining MEP and peripheral compound muscle action potential induced by posterior tibialis nerve stimulation, enabling the surgeon to quickly discriminate between central and peripheral neurologic injury. The surgeon has one more tool to drive in real time the optimal surgical strategy. This strategy guides the decision as to which side branches ought to be reimplanted, thus minimizing the risk of paraplegia.
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