Evaluated Value of Multimodality Evoked Potential in Vascular Lesions of the Thalamus

We reviewed the cases of 9 patients with vascular lesions in thalamus, 5 hemorrhage and 4 infarctions that were confirmed clinical and CT findings. Generally CT scan and clinical datas proved to be helpful to the diagnosis and prognosis to thalamic lesion. However, these findings are not exactly correlated to prognosis of patients. We can gain more informative factors to our patients for Multimodal evoked potential examination (MEP) to analysis. Especially in our cases, MEP findings proved to be the most effective results in the determinations of the prognosis. We review the literature and discuss the treatment and discuss the treatment and prognosis in thalamic lesion. Emphasis is placed on the current and optimal method of the evaluation of prognosis in thalamic lesions using MEP combined with the finding of CT scan and clinical status.

Evaluation of Brain Function in Human Head Trauma with Multimodality Evoked Potentials

The multimodality evoked potentials(MEP)(somatosensory, auditory, and visual evoked potentials) is studied in patients with various head trauma. The use of evoked potentials for the evaluation of disorders of the nervous system has become a most valuable aid to the neurosurgeon and neurologist, often providing information of critical value without recourse to invasive technique. The multimodality evoked potentials is classified in three grades per modality as the degree of abnormality of the electrophysiological data. Data from 20 normal Korean subject are given for comparison with the abnormal data obtained from 96 patiemts with head trauma. The multimodality evoked potentials is a simple and useful method for clinical evaluation of abnormal function of the brain and prediciton of the patient's outcome in the head trauma patients.