Subjective Posttraumatic Syndrome

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Abstract
Evoked responses testing including pattern visual evoked potentials (VEP) and brain stem auditory evoked potentials (BAEP) were performed in 57 subjects suffering from subjective posttraumatic syndrome (SPTS). Of the subjects, 36 had loss of consciousness after head injury. Abnormalities were found in 12 of 57 subjects (21%). The pathological findings by percentage were 25% in subjects who had loss of consciousness after head injury (9 of 36 cases) and 14% in subjects without loss of consciousness (3 of 21 cases). Evoked response alterations were more frequent in subjects with frontal and/or occipital trauma; BAEP abnormalities were more frequent than VEP. Evoked responses testing could be a useful noninvasive technique to evidence an organic dysfunction of CNS in some subjects with SPTS.