Symmetric, high voltage, triphasic, slow wave EEG pattern – Medicine MCQ

Symmetric, high voltage, triphasic, slow wave EEG pattern is seen in?
A. Uremic encephalopathy
B. Hypoxic ischemic encephalopathy
C. Hypercapnic encephalopathy
D. Hepatic encephalopathy

Correct answer : D. Hepatic encephalopathy

  • Symmetric, high voltage, triphasic, slow wave EEG pattern is characteristic of hepatic encephalopathy.
  • But it is also seen in other conditions like
    • Encephalopathy secondary to pulmonary or renal failure
    • Acute hydrocephalus
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