burst suppression pattern
Pronunciation: burst suh-PRESH-un PAT-urn
EEG pattern characterized by alternating periods of high-amplitude activity and electrical silence.
Full Definition
Burst suppression pattern is a distinctive EEG finding consisting of alternating periods of high-voltage, mixed-frequency activity (bursts) and periods of low-amplitude or flat electrical activity (suppression). In pediatric neurology, this pattern can indicate severe brain dysfunction from various causes including anoxic brain injury, severe encephalitis, metabolic disorders, or medication effects (particularly anesthetic agents or anticonvulsants). The suppression ratio—the percentage of time spent in the suppressed state—correlates with severity of brain dysfunction. In neonates, burst suppression may be seen in severe hypoxic-ischemic encephalopathy and carries a poor neurological prognosis.
Usage
Usage note: Specify suppression ratio when quantified. Distinguish from other periodic EEG patterns and note clinical context.
In Context
- "The EEG showed burst suppression with a suppression ratio of 80%, indicating severe cerebral dysfunction." — Neurophysiology report
- "Burst suppression pattern emerged following anesthetic induction with propofol for status epilepticus treatment." — ICU monitoring note