Toxic/Metabolic Infectious

Question 1

What EEG finding is most often associated with severe anoxic encephalopathy?

Answer 1

Burst suppression that may not be associated with clinical myoclonic jerks

Question 2

What EEG finding is most often associated with metabolic, especially hepatic, encephalpathy?

Answer 2

triphasic waves

Question 3

What EEG finding is most often associated with subacute sclerosing panencephaltis? (SSPE)

Answer 3

Periodic bursts every 4-10 seconds

Question 4

What EEG finding is most often associated with CJD?

Answer 4

initially slower than normal activity with loss of normal background

Progression: Bursts of biphasic and triphasic sharp waves

Question 5

What EEG finding is most often associated with meningitis?

Answer 5

Slow background ,
gen. slow
progression to polymorphic high voltage delta, frontal predominance, or low voltage slow or burst suppression

Question 6

What EEG finding are most often associated with herpes simplex encephalitis? (HSE)

Answer 6

Focal temporal spikes or sharp waves that can be unilateral or bilateral usually occuring periodically at a rate of 1 every 1-3 sec.