Post-stroke epilepsy: From clinical predictors to possible mechanisms

Area of Science:

• Neurology
• Epileptology
• Stroke Medicine

Background:

• Stroke is the leading cause of new-onset epilepsy in elderly individuals.
• Post-stroke epilepsy (PSE) accounts for a significant portion of unprovoked seizures in older adults.
• This review examines the epidemiology, risk factors, mechanisms, and management of PSE.

Purpose of the Study:

• To review the current understanding of post-stroke epilepsy (PSE).
• To identify risk factors, underlying mechanisms, and potential prevention and treatment strategies for PSE.
• To synthesize existing literature on the growing field of PSE research.

Main Methods:

• Comprehensive literature search using PubMed and Cochrane Library databases.
• Keywords included "stroke, epilepsy", "stroke, seizure", "post-stroke seizure", and "post-stroke epilepsy".
• Manual analysis of reference lists from selected articles and reviews to identify additional relevant studies.

Main Results:

• Post-stroke epilepsy (PSE) occurs in approximately 6% of stroke patients.
• Key risk factors for PSE include cortical lesions, stroke severity, younger age, and early seizures (ES).
• Statins show potential for PSE prevention due to anticonvulsant and neuroprotective effects; AED monotherapy manages seizures but doesn't prevent focus formation.

Conclusions:

• Further research is essential to elucidate the pathophysiology of PSE.
• Developing effective prevention strategies for post-stroke epilepsy requires continued investigation.
• Understanding the role of early seizures in epileptogenesis is crucial for future interventions.