High Prevalence of Social Cognition Disorders and Mild Cognitive Impairment Long Term After Stroke

Social cognition disorders after stroke are poorly described. Yet, rehabilitation difficulties are frequent after stroke. This study aimed to evaluate the frequency of social cognition disorders 3 years after a first-ever stroke and to assess the factors associated with this condition. The second aim was to describe all the cognitive domains altered in the same population.

Patients who suffered from a first-ever ischemic or hemorrhagic stroke underwent clinical and neuropsychological assessment, which included the mini-Social cognition and Emotional Assessment (SEA) for evaluating social cognition.

The 43 included patients were 67±15 years old, with a median Neurological Institute of Health Stroke Scale (NIHSS) (± interquartile range) at 0±1, and a median modified Rankin Scale (± interquartile range) at 1±1. Twenty patients (46.5%) had poor results in the facial emotions subtest; this factor was associated with a low educational grade (P=0.001). Fourteen patients (34.2%) had poor results on the "faux-pas" recognition subtest; this factor was associated with nonverbal episodic memory disorders (P=0.01). Thirty four patients (79.1%) had cognitive impairment, with at least 1 cognitive domain affected.

The study demonstrates the high frequency of social cognition impairment 3 years after the first-ever stroke in young patients. Doctors and nurses should be sensitized to cognitive handicap after stroke because of difficulties for rehabilitation and returning to work.