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  • Title: Preserved cortical somatosensory evoked potentials in apnoeic coma with loss of brain-stem reflexes: case report.
    Author: Wagner W, Ungersböck K, Perneczky A.
    Journal: J Neurol; 1993; 240(4):243-8. PubMed ID: 8496713.
    Abstract:
    A comatose patient suffering from diffuse cerebellar haemorrhage developed apnoea and brainstem areflexia, i.e. the clinical signs of brain death. However, median nerve somatosensory evoked potential testing 2.5 h and 22 h after the onset of this clinical syndrome showed cortical potentials partly preserved; these were abolished 46 h after the beginning of the clinical signs of brain death. This case report underlines the need for electrophysiological confirmation of brain death in patients with primarily infratentorial lesions.
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