[Fatigue in neurological disease: different patterns in stroke and multiple sclerosis]

Area of Science:

• Neurology
• Psychiatry

Context:

• Fatigue is a common and complex symptom in patients with multiple sclerosis (MS) and stroke.
• The characteristics and implications of fatigue can differ between these neurological conditions due to varying pathophysiology and lesion locations.
• Previous research has not extensively compared fatigue syndrome in matched MS and stroke patient populations.

Purpose:

• To compare the syndrome of fatigue in patients with multiple sclerosis (MS) and stroke.
• To identify differences and similarities in the experience and impact of fatigue between these two patient groups, matched for handicap levels.

Summary:

• A study involving 79 stroke and 39 MS outpatients, matched for minimal disability and absence of depression, assessed fatigue using the Fatigue Assessing Instrument (FAI).
• Results indicated significantly higher fatigue scores in MS patients compared to stroke patients, particularly in psychic impact, severity, and specificity.
• While MS patients experienced greater psychic impact from fatigue (impaired motivation, concentration, irritability), the functional consequences on physical, professional, and social activities were comparable between the groups.

Impact:

• Fatigue is more prevalent and severe in MS patients than in stroke patients, irrespective of disability level.
• The psychic dimension of fatigue is a key differentiator in MS, even in the absence of clinical depression.
• Despite differing severity and characteristics, the overall impact of fatigue on daily functioning is similar for both MS and stroke patients.