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Clinical accompaniments of the burst-suppression EEG pattern
A L Reeves1, B F Westmoreland, D W Klass
1Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.
Summary
Electroencephalogram (EEG) burst-suppression patterns after anoxic brain injury often indicate a poor prognosis. This study reviews 12 cases of unusual movements accompanying EEG bursts in comatose patients.
Area of Science:
- Neurology
- Neurophysiology
Background:
- A burst-suppression pattern on electroencephalogram (EEG) following anoxic brain injury typically signifies a poor prognosis.
- Associated phenomena include myoclonic jerks and, rarely, oral, ocular, or appendicular movements.
Observation:
- Movements accompanying electrographic bursts in comatose patients can be mistaken for volitional actions.
- These movements may complicate the assessment of consciousness and responsiveness to stimuli.
Findings:
- This review details 12 cases of diverse movements occurring with EEG bursts post-cerebral anoxic insult.
- The findings highlight the varied clinical presentations that can arise in these critical neurological conditions.
Implications:
- Understanding these associated movements is crucial for accurate clinical assessment in comatose patients.
- Recognizing these non-volitional movements can prevent misinterpretation of patient status and aid in prognostication.