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Bilateral independent periodic lateralised epileptiform discharges at presentation followed by rapid recovery: novel observations from a case of Epstein-Barr virus encephalitis


Bilateral independent periodic lateralised epileptiform discharges (BIPLEDs) in electroencephalograms (EEGs) are commonly caused by anoxic encephalopathy and central nervous system infections. They are associated with coma and high mortality and are thus markers of poor prognosis. We present a case of encephalitis who presented with BIPLEDs in EEG. Though the clinical, EEG and MRI features closely resembled herpes simplex encephalitis, further investigations proved it to be Epstein-Barr virus (EBV) encephalitis. Despite the presence of BIPLEDs in the EEG, the patient had a rapid clinical response to therapy with acyclovir. We emphasise that BIPLEDs may not always indicate poor prognosis especially in the setting of EBV encephalitis.

  • infection (neurology)
  • neuroimaging

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