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