This is the 4849th most frequent Russian word.
инсульт
Stroke.
In this sentence, 'инсульт' is used to refer to a medical condition, specifically a stroke, indicating a past health event of the subject's grandfather.
У моего дедушки был инсульт в прошлом году.
My grandfather had a stroke last year.
Here, 'инсульт' is mentioned in a cause-effect relationship, describing the aftermath and recovery process following the medical condition.
После инсульта она долго восстанавливалась и проходила реабилитацию.
After the stroke, she took a long time to recover and underwent rehabilitation.
In this sentence, 'инсульт' is used in plural form to discuss the general concept of strokes in the context of prevention measures.