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EEG findings during basilar migraine attacks in children
G P Ramelli1, M Sturzenegger, F Donati
1Department of Paediatrics, Universitäts-Kinderklinik, Inselspital, Berne, Switzerland.
Electroencephalography and Clinical Neurophysiology
|January 1, 1999
Summary
Basilar migraine (BM) in children can cause EEG abnormalities, including slow wave activity during attacks. These EEG findings resolve over time and should not be mistaken for serious brain-stem lesions.
Area of Science:
- Neurology
- Pediatrics
- Neurophysiology
Background:
- Basilar migraine (BM) is a subtype of migraine characterized by neurological symptoms affecting the brainstem.
- Pediatric basilar migraine requires careful diagnostic evaluation to differentiate from other neurological conditions.
Observation:
- This study reports on four pediatric patients diagnosed with basilar migraine.
- Electroencephalogram (EEG) recordings were performed during acute attacks and during follow-up.
Findings:
- Early EEG (within 4 hours) showed diffuse polymorphic subdelta-delta activity.
- Later EEG (around 16 hours) revealed occipital predominant delta-theta activity.
- All observed EEG abnormalities resolved by the follow-up EEG.
Implications:
- EEG findings in pediatric basilar migraine can mimic structural brain lesions.
- Clinicians must integrate EEG results with clinical presentation to avoid misdiagnosis of brain-stem infarction or inflammation.
- Understanding the transient nature of EEG changes is crucial for accurate diagnosis and management of pediatric basilar migraine.