Thank you for posting your query.
The most likely cause of fainting
episodes in your father could be post-stroke epilepsy
In this condition, the epilepsy starts because of scar formation in the brain (due to the blood clot).
It is well treatable with medications such as levetiracetam
At the same time, medicines to prevent further brain strokes such as aspirin
should be continued.
Dr Sudhir Kumar MD DM (Neurology)