Electroencephalography (EEG): Difference between revisions
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#Electrocerebral silence | #Electrocerebral silence | ||
#Alpha rhythm | #Alpha rhythm | ||
#Burst suppression. Burst suppression occurs during states of general anesthesia or coma. Burst suppression is an on/off pattern of EEG activity characterized by periods of high cortical electrical activity followed by periods of low electrical activity. The periods of hyperexcitability are variable but can last 0. | #Burst suppression. Burst suppression occurs during states of general anesthesia or coma. Burst suppression is an on/off pattern of EEG activity characterized by periods of high cortical electrical activity followed by periods of low electrical activity. The periods of hyperexcitability are variable but can last 0.5–10 seconds in duration. The periods of low electrical activity or suppression are likely due to transient increases in GABAergic inhibition of cortical activity, whereas cortical hyperexcitability may arise from ongoing glutamatergic transmission. | ||
#Ischemia | #Ischemia | ||
#Hyper-hypothermia | #Hyper-hypothermia | ||
Revision as of 20:38, 25 February 2020
Generators
Classification of frequency
Recording montages
Patterns
- Electrocerebral silence
- Alpha rhythm
- Burst suppression. Burst suppression occurs during states of general anesthesia or coma. Burst suppression is an on/off pattern of EEG activity characterized by periods of high cortical electrical activity followed by periods of low electrical activity. The periods of hyperexcitability are variable but can last 0.5–10 seconds in duration. The periods of low electrical activity or suppression are likely due to transient increases in GABAergic inhibition of cortical activity, whereas cortical hyperexcitability may arise from ongoing glutamatergic transmission.
- Ischemia
- Hyper-hypothermia
- Changes in ventilation
- Artifact
Processing Methods
- Fourier series analysis
- Bispectral array
- Mapping techniques
Electrocorticography
Functional Mapping
Intraoperative Monitoring
- Carotid Endarterectomy
- Seizure Surgery
- Cardiac Surgery
- Deliberate Hypotension
- Deliberate Hypothermia
- Barbiturate Coma
- Intracranial Vascular Procedures