Post Stroke Cognitive Impairment

Age above 60 years, refusal to participate in the study, pre-existing dementia or significant psychiatric illness, severe aphasia or communication deficits precluding cognitive testing or severe comorbid condition limiting follow-ups, systemic diseases that are known to affect the central nervous system, such as (thyroid dysfunction, chronic infections, or system failure like liver or renal failure), significant sensory impairment (deafness and blindness), history of malignancy and those who have had neurosurgical procedures or severe head trauma at any time before a stroke.