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[Electroencephalography and cranial computed tomography in a posterior infarct]
B Griewing1, A Lütcke, L Mertins
1Neurologische Universitätsklinik, Universität Marburg/Lahn.
EEG-EMG Zeitschrift Fur Elektroenzephalographie, Elektromyographie Und Verwandte Gebiete
|September 1, 1992
Summary
Electroencephalograms in patients with posterior cerebral artery infarction reveal that thalamic involvement correlates with bilateral temporal EEG abnormalities. This finding aids in understanding brain function after stroke.
Area of Science:
- Neurology
- Neurophysiology
Background:
- Cerebral infarction in the posterior cerebral artery (PCA) territory can affect brain function.
- Electroencephalography (EEG) is used to assess brain activity.
Purpose of the Study:
- To investigate EEG alterations in patients with PCA infarction.
- To determine the relationship between thalamic involvement and EEG findings.
Main Methods:
- Interpreted EEGs from 50 patients diagnosed with PCA infarction.
- Utilized clinical findings and CT scans for diagnosis.
- Correlated EEG abnormalities with CT-confirmed thalamic structure involvement.
Main Results:
- All patients exhibited EEG changes in the occipital region.
- Bilateral paroxysmal temporal EEG abnormalities were observed in most cases, lateralized to the infarction site.
- These temporal abnormalities were exclusively present in patients with co-existing thalamic structure involvement.
Conclusions:
- Thalamic structure involvement in PCA infarction is associated with specific bilateral temporal EEG abnormalities.
- EEG can help identify the extent of brain dysfunction beyond the primary infarction site.
- Findings suggest a functional connection between thalamic structures and temporal lobe activity in PCA infarction.