Transcranial Magnetic Stimulation in Children With Stroke
Overview
- Phase
- Phase 1
- Intervention
- Not specified
- Conditions
- Hemiparesis
- Sponsor
- Nationwide Children's Hospital
- Enrollment
- 4
- Locations
- 2
- Primary Endpoint
- Tolerance to repetitive stimulation
- Status
- Completed
- Last Updated
- 12 years ago
Overview
Brief Summary
This is a pilot study of repetitive transcranial magnetic stimulation (rTMS) to test tolerance and efficacy in children who have hemiparesis from acquired or presumed perinatal stroke.
Detailed Description
The investigators will begin to test the hypothesis that rTMS will be tolerated and will result in improved hand strength and mobility when compared with sham stimulation. Aim 1: To determine whether 1 Hz rTMS applied to the hemisphere opposite the infarct (contralesional or healthy hemisphere) is tolerated by children ages 6-18 years who have chronic motor sequelae from a stroke. Aim 2: To determine whether 8 sessions of inhibitory 1 Hz rTMS to the contralesional healthy hemisphere improves grip strength and hand mobility when compared with sham stimulation in controls.
Investigators
Warren Lo
Associate Clinical Professor of Pediatrics and Neurology
Nationwide Children's Hospital
Eligibility Criteria
Inclusion Criteria
- •A history of ischemic or hemorrhagic stroke at least 6 months prior to recruitment, and causing current unilateral motor impairment of hand function (scoring 1-3 on a modified Ashworth scale; scale explained in Appendix).
- •Cerebral infarction spares the transcallosal pathways.
- •Cerebral injury confirmed by brain MRI or CT
- •Ages 6-18 years inclusive.
Exclusion Criteria
- •The presence of an implanted device such as a pacemaker, vagal nerve stimulator, or recently implanted cardiovascular stent; arterial aneurysms; arteriovenous malformations; obstructive hydrocephalus.
- •Infarction of the cortical motor areas.
- •Presence of a brain tumor or suspected neurodegenerative disease.
- •Intractable epilepsy or a history of poorly controlled epilepsy.
- •Current use of medications that may lower seizure threshold (such as specific antipsychotics, specific antidepressants, amphetamines)
- •Hand function limited to rigid flexion or extension (score = 4 on the modified Ashworth scale)
- •Disorders causing hallucinations, delusions, or excessive anxiety or depression.
- •Pre-existing chronic pain syndromes including intractable headache and chronic daily headache.
- •Any sensorimotor or cognitive impairment that prevents valid responses on study measures.
- •Bilateral strokes (cerebral injuries) involving motor cortex and/or corpus callosum
Outcomes
Primary Outcomes
Tolerance to repetitive stimulation
Time Frame: Up to 2 days
The patient's reports of side effects recorded on the CRF at each session will be tabulated and the pre-stimulation scores will be subtracted from the post-stimulation scores. Cognitive function will be assessed with 6 measures (Executive Function / Spatial Problem Solving, Psychomotor Function / Speed of Processing, Visual Attention / Vigilance, Visual Learning \& Memory, Verbal Learning \& Memory, and Attention / Working Memory measures). As with the tolerance assessments, we will tabulate before-stimulation and after-stimulation assessments and analyze the difference.
Secondary Outcomes
- Upper extremity strength and mobility(Up to 2 Months)