Quantifying changes over 1 year in motor and cognitive skill after transient ischemic attack (TIA) using robotics.

Area of Science:

• Neuroscience
• Neurology
• Rehabilitation Medicine

Background:

• Transient ischemic attack (TIA) and migraine are associated with potential long-term motor and cognitive deficits.
• Quantifying these deficits and their changes over time is crucial for understanding neurological recovery.
• Robotic assessment offers objective measures of motor, sensory, and cognitive function.

Purpose of the Study:

• To quantify motor and cognitive deficits in individuals following TIA.
• To track changes in functional abilities over one year using robotic assessments.
• To compare TIA outcomes with an active control group of migraineurs.

Main Methods:

• 48 individuals with TIA and 28 individuals with migraine completed 8 behavioral tasks using the Kinarm Exoskeleton robot.
• Assessments were conducted at multiple time points up to 52 weeks post-symptom resolution.
• Task Score was used to measure overall performance and changes over time, accounting for learning effects.

Main Results:

• Both TIA and migraine groups showed impairments in robotic tasks within 2 weeks and at 1 year post-symptom resolution, particularly in cognitive-motor integration.
• Up to 51.3% of TIA patients and 37.5% of migraine patients had task impairments within 2 weeks.
• Persistent impairments were observed in up to 18% (TIA) and 10% (migraine) at 1 year, with 25-30% experiencing performance deterioration.

Conclusions:

• Transient neurological events like TIA and migraine can lead to persistent neurological impairments.
• While most performance is stable, some individuals experience significant changes, indicating heterogeneity in recovery.
• Individual neurological status assessment is vital post-TIA or migraine to address lasting effects and inform potential interventions.