EEG Abnormalities as Diagnostic and Prognostic Factor for Encephalitis

The aim of the study is to examine whether EEG abnormalities in patients with encephalitis might be prognostic and diagnostic factors for final epilepsy outcome and/or be correlated with the severity of the disability.

The most frequent causes of encephalitis were HSV, WNV, INF V, MTB, St PN, St AU. There was a highly statistically significant positive correlation between the severity of the EEG abnormalities at the beginning of the disease (r = 0.410, p <0.01) and the ultimate outcome.

Electroencephalography in the early stages of encephalitis shows diagnostic and prognostic significance and, in combination with the overall severity of the clinical picture, could contribute to the diagnosis and assessment of outcomes and, ultimately, the correction of treatment and faster recovery of patients. This is particularly true for viral encephalitis.