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  • Title: [Prospective studies of multimodal evoked potentials in patients after cranio-cerebral injury].
    Author: Pierzchała K, Kazibutowska Z, Liska A, Rogoz B.
    Journal: Neurol Neurochir Pol; 1991; 25(5):656-63. PubMed ID: 1808528.
    Abstract:
    In 42 patients aged 18-68 years somatosensory, visual and brainstem auditory evoked potentials were studied in the first month after trauma and after 6-8 months after craniocerebral trauma for evaluation of their diagnostic importance in less severe craniocerebral trauma. On the basis of the results of neurological examination, CT of the head, and duration of unconsciousness in 22 cases brain concussion and in 20 cases brain contusion was diagnosed. In patients after brain concussion the frequency of early and late abnormalities after head trauma was as follows: for SSEP 36.4% and 27.3% respectively, for visual evoked potentials 21.1% and 5.3%, for auditory potentials 9.5% and 4.8%. In cases of brain contusion abnormalities were found in the 1st month and 6-8 months after trauma in SSEP in 60% and 20% respectively, in visual EP in 11.1% and 22.2%, and in auditory EP in 30% and 40%. In the group of concussion the greatest and most persistent changes developed in the later components od SSEP. Among certain patients with brain contusion deterioration of the results of visual and auditory evoked potentials were noted late after trauma.
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