Briefly about eeg uses importance indications
EEG (electroencephalogram) records electrical activity of the brain via scalp electrodes. Key uses:
- Epilepsy: primary tool for diagnosing seizure types, localizing foci, guiding treatment
- Sleep disorders: identifies sleep stages, diagnoses insomnia, narcolepsy, sleep apnea patterns
- Encephalopathy: detects metabolic, toxic, or infectious brain dysfunction
- Brain death: confirms cerebral inactivity (isoelectric EEG)
- Coma monitoring: assesses depth and prognosis
- ICU/continuous monitoring: detects non-convulsive status epilepticus
- Cognitive/psychiatric research: used in dementia workup, CJD (periodic sharp waves)
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