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Late epileptic seizures after cerebral infarction
A Awada1, M F Omojola, T Obeid
1Neurology Section, King Fahd National Guard Hospital, Riyadh, Saudi Arabia.
Acta Neurologica Scandinavica
|May 29, 1999
Summary
Late epileptic seizures after cerebral infarction are often partial motor seizures. Large cortical infarcts and preserved brain tissue within the infarct predict seizure development, increasing risk in patients with leukoaraiosis or renal failure.
Area of Science:
- Neurology
- Neurosurgery
- Stroke Medicine
Background:
- Epilepsy is a common complication of stroke.
- Late epileptic seizures can significantly impact patient outcomes after cerebral infarction.
Purpose of the Study:
- To identify the characteristics of late epileptic seizures following cerebral infarction.
- To determine clinical and radiological predictors of late seizure development post-stroke.
Main Methods:
- Comparative study of 86 patients with late seizures versus 285 controls without seizures after cerebral infarction.
- Exclusion of patients with seizures occurring only at stroke onset.
- Statistical analysis using odds ratios.
Main Results:
- Simple partial, predominantly motor seizures, were most common.
- Predictive factors for seizures included large cortical infarcts and preserved brain tissue within the infarct.
- Leukoaraiosis and conditions lowering seizure threshold (e.g., renal failure) increased seizure risk.
Conclusions:
- Late seizures after cerebral infarction often manifest as partial motor seizures.
- Identifying predictive factors aids in risk stratification and potential intervention for post-stroke epilepsy.