EEG

  • Generalized 3-4 Hz spike and slow wave complexes on EEG are seen in Juvenile myoclonic epilepsy
  • REM sleep is often associated with dreaming
  • EEG is usually abnormal in Hepatic encephalopathy, Creutzfoldt - Jackob disease & Subacute sclerosing panencephalitis
  • With EEG shows periodic sharp biphasic waves diagnosis is Creutzfeldt Jakob disease
  • The characteristic EEG feature of absence seizures is 3 Hz spike & wave
  • The most characteristic EEG finding in complex partial (psychomotor) seizures is Spikes over the temporal lobes
  • Infantile spasms are associated with a hyperarrhythmic pattern on EEG
  • EEG taken during Stage 2 of sleep shows sleep spindles
  • Alpha block on EEG is seen during Concentrating
  • Slow waves In EEG activity seen in Delirium
  • EEG rhythm recorded from the surface of the scalp during REM sleep Beta
  • The frequency of A waves an EEG is 8-12 / s
  • The frequency of beta waves (per sec) in EEG is 13-30
  • EEG rhythm having lowest frequency is Delta
  • Buerger waves (alpha waves) of EEG have the rhythm per sec of 8-13
  • An EEG Is bilaterally symmetrical
  • A person with eyes closed and mind wandering will have Alpha wave in EEG
  • The normal adult human electroencephalogram (EEG) Will not show high frequency waves during Stage 3 sleep & Shows alpha rhythm when a person is awake but inattentive
  • The feature of petit mal epilepsy in EEG is Spike and dome
  • Hypothermia in anesthesia will produce decreased EEG activities
  • A symmetric high-voltage, triphasic slow wave pattern is seen on EEG in Hepatic encephalopathy
  • A symmetric high-voltage, triphasic slow wave pattern is seen on EEG in Hepatic encephalopathy
  • Burst Supression pattern on EEG is typically seen in Anoxic Encephalopathy
  • Burst – suppression EEG pattern is seen in Hypoxic ischemic encephalopathy, Phenobarbital administration to lower ICP in traumatic brain injury & Severe Hypothermia
  • Alpha wave in EEG are seen in Awake state
  • Delta waves on EEG are recorded in Deep sleep
  • Adder head appearance is seen in Uretrocoele
  • Brain fingerprinting Uses EEG on lead
  • The EEG cabins should be completely shielded by a continuous sheet of wire mesh of copper to avoid the picking up of noise from external electromagnetic disturbances. Such a shielding is called as Faraday cage
  • In EEG type of wave seen in metabolic encephalophathy is Delta
  • EEG in anesthesia is useful in Depth of general anesthesia
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