Domain-specific cognitive recovery after first-ever stroke: a follow-up study of 111 cases

J Int Neuropsychol Soc. 2005 Nov;11(7):795-806. doi: 10.1017/s1355617705050952.

Abstract

The objective of this study is to examine the prognosis of acute cognitive disorders post-stroke, and to evaluate which clinical factors predict domain-specific cognitive recovery. We followed the course of cognitive functioning in 111 stroke patients and 77 healthy controls by administering two neuropsychological examinations with a 6 to 10 month interval (mean interval, 7.5 +/- 1.3 months). The baseline examination was administered within three weeks post-stroke (mean interval, 7.9 +/- 4.2 days). To examine determinants of domain-specific cognitive recovery, we recorded vascular risk factors, clinical variables, and lesion characteristics. Recovery in visual perception/construction (83%) and visual memory (78%) was the most common. An acute cognitive disorder predicted a long-term disorder in the same domain (all p < .05), except for visual perception/construction. Factors associated with poor cognitive recovery were age (all p < .01), preexistent verbal ability (all p < .005), lesion locations involving the temporal (all p < .05), frontal (p < .05) and occipital lobe (allp < .05), lesion volume (p < or = .001), and diabetes mellitus (p < .01). An early neuropsychological examination provides valuable information on long-term cognitive performance. The prognosis of higher-level visual disorders is the most favorable. Cognitive recovery is associated with age, preexistent ability, lesion volume, lesion location, and diabetes mellitus.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Cognition / physiology*
  • Female
  • Humans
  • Language
  • Male
  • Memory / physiology
  • Middle Aged
  • Neuropsychological Tests
  • Prognosis
  • Psychomotor Performance / physiology
  • Risk Factors
  • Stroke / psychology*
  • Stroke Rehabilitation
  • Vascular Diseases / physiopathology
  • Visual Perception / physiology