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Types of affective response to stroke
J F Malec1, J W Richardson, M Sinaki
1Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN 55905.
Archives of Physical Medicine and Rehabilitation
|April 1, 1990
Summary
Depression after stroke is complex. Strict patient criteria revealed distinct symptom groups, with vegetative signs or distress linked to worse outcomes and longer hospital stays.
Area of Science:
- Neurology
- Psychiatry
- Rehabilitation Medicine
Background:
- Depression post-stroke is common but often studied in mixed patient groups.
- Previous research lacked strict inclusion criteria regarding age, neurological, psychiatric, and substance abuse histories.
Purpose of the Study:
- To investigate depression subtypes in a carefully selected stroke patient cohort.
- To identify clinical features associated with depression severity and functional outcomes after stroke.
Main Methods:
- A stringent selection process identified 26 eligible patients (age >55, no prior brain injury/disease, no major psychiatric/substance abuse history) from 155 stroke admissions.
- Standardized assessments including the Hamilton Depression Rating Scale, mood checklists, Mini-Mental State Examination, and dexamethasone suppression tests were administered.
- Neuropsychological evaluations were performed within six weeks of stroke onset.
Main Results:
- Four distinct clinical depression groups emerged: no affective symptoms, verbal distress only, vegetative symptoms only, and combined distress/vegetative symptoms.
- The presence of verbal distress or vegetative symptoms was associated with significantly longer hospital stays.
- Increased neuropsychological impairment correlated with the severity of depressive symptoms.
Conclusions:
- Depression after stroke presents in distinct clinical patterns, even in a highly selected group.
- Vegetative symptoms and verbal distress are significant indicators of poorer prognosis, including prolonged hospitalization and cognitive deficits.