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Related Experiment Videos

Blink reflex in stroke: follow-up and correlation with function and CT parameters.

A Catz1, Y Steinvil, I Reider-Groswasser

  • 1Loewenstein Rehabilitation Hospital, Raanana, Israel.

European Neurology
|January 1, 1988
PubMed
Summary

Blink reflex (BR) changes after stroke correlate with lesion size and initial walking ability. This study explores the relationship between BR and motor function recovery following unilateral hemispheric cerebrovascular accident.

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Area of Science:

  • Neurology
  • Neuroscience
  • Rehabilitation Medicine

Background:

  • Unilateral hemispheric cerebrovascular accident (stroke) frequently causes motor deficits.
  • Assessing neurological recovery after stroke is crucial for effective rehabilitation.

Purpose of the Study:

  • To investigate the serial changes in blink reflex (BR) following unilateral hemispheric cerebrovascular accident.
  • To correlate BR parameters with lesion characteristics and functional recovery, specifically walking and arm function.

Main Methods:

  • Blink reflex (BR) was assessed serially at 1, 2, and 3 months post-stroke.
  • Functional status (walking, arm function) was evaluated.
  • Cerebral computed tomography (CT) scans were used to determine lesion extent and location.

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Main Results:

  • Depressed R2 components of the BR correlated with larger lesion sizes.
  • Initial walking ability showed correlation with the latency and amplitude of R2 elicited by stimulation of the paretic side.
  • No significant correlation was found between BR and arm function or final ambulatory status.

Conclusions:

  • Blink reflex alterations are associated with lesion severity and early motor recovery after stroke.
  • A potential neural pathway model links BR facilitating fibers to facial movement pathways.