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Post-Stroke Cognitive Impairment is Frequent After Infra-Tentorial Infarct.

Henrik Moliis1, Hanna Jokinen2, Eeva Parkkonen1

  • 1Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association
|September 21, 2021
PubMed
Summary
This summary is machine-generated.

Cognitive impairment after stroke is common, regardless of infarct location. Both infra-tentorial and supra-tentorial infarcts lead to similar rates of cognitive deficits, impacting rehabilitation needs.

Keywords:
Brain stem infarctionCerebellar infarctionCognitive functionsStroke

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Area of Science:

  • Neuroscience
  • Neurology
  • Cognitive Science

Background:

  • Post-stroke cognitive impairment is a known consequence of supra-tentorial infarcts.
  • The prevalence and severity of cognitive deficits following infra-tentorial infarcts remain less understood.
  • This study investigates cognitive impairment in relation to infarct location.

Purpose of the Study:

  • To compare the frequency and prognostic value of domain-specific cognitive deficits after infra-tentorial and supra-tentorial infarcts.
  • To elucidate the impact of infra-tentorial infarcts on cognitive function.
  • To inform rehabilitation strategies for stroke survivors.

Main Methods:

  • A cohort of 244 first-ever stroke patients was analyzed, with 37 experiencing infra-tentorial infarcts.
  • Comprehensive neuropsychological examinations assessed 9 cognitive domains 3 months post-stroke.
  • Functional disability was evaluated at 15 months using the modified Rankin Scale.

Main Results:

  • No significant differences were found in the frequency of cognitive deficits between infra-tentorial and supra-tentorial infarct groups.
  • 73% of infra-tentorial infarct patients and 82% of supra-tentorial infarct patients exhibited at least one cognitive deficit.
  • Visuo-constructional deficits in infra-tentorial infarct patients were linked to functional disability (OR 9.0).
  • Executive and visuo-constructional deficits in supra-tentorial infarct patients were associated with functional disability (OR 2.9 for both).

Conclusions:

  • Cognitive deficits are equally prevalent in patients with infra-tentorial infarcts compared to supra-tentorial infarcts.
  • Recognizing these cognitive deficits is crucial for effective stroke rehabilitation.
  • Infarct location does not significantly alter the likelihood of cognitive impairment post-stroke.