Exploring Cerebellar Inhibition of the Motor Cortex in Stroke Patients

Study Overview
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Brief Summary
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The past 10 years of research in post stroke patients have shown certain types of rehabilitation can help neuronal plasticity of the brain. Transcranial magnetic stimulation (TMS) can be used to monitor this plasticity by mapping the brain's function (measuring brain activity). Recent research suggests that TMS can be used for both prognosis (determining future function) and to determine what type of rehabilitation therapy will work best after stroke. The purposes of this research study are to: 1) determine changes in cerebellar activity after motor cortical stroke 2) compare changes in recovery of motor function with changes in cerebellar - motor cortex connections; 3) determine the ability of TMS to predict functional outcome after stroke. The primary hypotheses are: 1) functional recovery will be correlated with TMS changes (as measure of motor threshold (MT), intracortical inhibition, cerebellar cerebral inhibition (CBI), motor evoked potentials (MEPs) and recruitment curves; 2) baseline TMS will predict future functional outcomes.

Detailed Description
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Transcranial magnetic stimulation (TMS) can be used to monitor this plasticity by mapping the brain's function (measuring brain activity). Recent research suggests that TMS can be used for both prognosis (determining future function) and to determine what type of rehabilitation therapy will work best after stroke. The purposes of this research study are to: 1) determine changes in cerebellar activity after motor cortical stroke 2) compare changes in recovery of motor function with changes in cerebellar - motor cortex connections; 3) determine the ability of TMS to predict functional outcome after stroke. The primary hypotheses are: 1) functional recovery will be correlated with TMS changes (as measure of motor threshold (MT), intracortical inhibition, cerebellar cerebral inhibition (CBI), motor evoked potentials (MEPs) and recruitment curves; 2) baseline TMS will predict future functional outcomes.

Official Title
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Exploring Cerebellar Inhibition of the Motor Cortex in Stroke Patients

Conditions
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Stroke

Intervention / Treatment
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* Other: Functional clinical and TMS diagnostic


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: one sided ischemic stroke confirmed by radiology adults Exclusion Criteria: brainstem stroke cerebellar stroke seizure with the recent stroke any history of uncontrolled seizure pregnancy or planning on getting pregnant during the next year recent history (past year) of alcohol and drug abuse (due to lack of follow up) Other criteria include TMS exclusions: aneurysm clips, previous surgery over motor cortex, open craniotomy.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Other: Functional clinical and TMS diagnostic|Functional clinical and TMS diagnostic examination to evaluate corticospinal motor tract activity and corticocerebellar tract activity and its relation with stroke recovery|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Motor function on the Upper Limb Fugl-Meyer Scale and the motor evoked potentials (MEP) on the Transcranial Magnetic Stimulation. | To explore the relationship between the cerebellar brain inhibition - CBI and motor function of upper extremities of patients with stroke. The cerebellar brain inhibition will be assessed by Transcranial Magnetic Stimulation (TMS) and the motor function of the upper extremities by the Upper Limb Fugl-Meyer Scale. | 3 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Stroke, Transcranial Magnetic Stimulation, Neuronal Plasticity, Rehabilitation