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Metelski N, Gu Y, Quinn L, Friel KM, Gordon AM. Safety and efficacy of non-invasive brain stimulation for the upper extremities in children with cerebral palsy: A systematic review. Dev Med Child Neurol 2024; 66:573-597. [PMID: 37528530 DOI: 10.1111/dmcn.15720] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/17/2023] [Accepted: 06/21/2023] [Indexed: 08/03/2023]
Abstract
AIM To evaluate available evidence examining safety and efficacy of non-invasive brain stimulation (NIBS) on upper extremity outcomes in children with cerebral palsy (CP). METHOD We electronically searched 12 sources up to May 2023 using JBI and Cochrane guidelines. Two reviewers selected articles with predetermined eligibility criteria, conducted data extraction, and assessed risk of bias using the Cochrane Risk of Bias criteria. RESULTS Nineteen studies were included: eight using repetitive transcranial magnetic stimulation (rTMS) and 11 using transcranial direct current stimulation (tDCS). Moderate certainty evidence supports the safety of rTMS and tDCS for children with CP. Very low to moderate certainty evidence suggests that rTMS and tDCS result in little to no difference in upper extremity outcomes. INTERPRETATION Evidence indicates that NIBS is a safe and feasible intervention to target upper extremity outcomes in children with CP, although it also indicates little to no significant impact on upper extremity outcomes. These findings are discussed in relation to the heterogeneous participants' characteristics and stimulation parameters. Larger studies of high methodological quality are required to inform future research and protocols for NIBS.
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Affiliation(s)
- Nicole Metelski
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, New York, USA
| | - Yu Gu
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, New York, USA
| | - Lori Quinn
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, New York, USA
| | - Kathleen M Friel
- Burke Neurological Institute, White Plains, New York, and Weill Cornell Medicine, New York, New York, USA
| | - Andrew M Gordon
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, New York, USA
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2
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Gangwani RR, Mark JI, Vaughn RM, Holland H, Thorpe DE, Alexander JJ, Surkar SM, Cassidy JM. Corticomuscular Coherence in Children with Unilateral Cerebral Palsy: A Feasibility and Preliminary Protocol Study. J Child Neurol 2023; 38:357-366. [PMID: 37448333 PMCID: PMC10466949 DOI: 10.1177/08830738231187010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/02/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
Objective This study assessed the feasibility of corticomuscular coherence measurement during a goal-directed task in children with unilateral cerebral palsy while establishing optimal experimental parameters. Methods Participants (Manual Ability Classification System levels I-III) completed a submaximal isometric goal-directed grip task during simultaneous electroencephalography and electromyography (EMG) acquisition. Results All participants (n = 11, 6 females, mean age 11.3 ±2.4 years) completed corticomuscular coherence procedures. Of the 40 trials obtained per extremity, an average of 29 (n = 9) and 27 (n = 10) trials were retained from the more- and less-affected extremities, respectively. Obtaining measurement stability required an average of 28 trials per extremity. Conclusion Findings from this work support the feasibility of corticomuscular coherence measurement in children with unilateral cerebral palsy. Acquiring 28 to 40 corticomuscular coherence trials per extremity is ideal. The experimental parameters established in this work will inform future corticomuscular coherence application in pediatric unilateral cerebral palsy.
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Affiliation(s)
- Rachana R. Gangwani
- Department of Health Sciences, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jasper I. Mark
- Department of Health Sciences, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Rachel M. Vaughn
- Department of Health Sciences, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Deborah E. Thorpe
- Department of Health Sciences, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Joshua J. Alexander
- Departments of Physical Medicine and Rehabilitation and Pediatrics, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Swati M. Surkar
- Department of Physical Therapy, East Carolina University, Greenville, NC, USA
| | - Jessica M. Cassidy
- Department of Health Sciences, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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3
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Steinbusch CVM, Defesche A, van der Leij B, Rameckers EAA, Knijnenburg ACS, Vermeulen JRJ, Janssen-Potten YJM. The Effect of Bimanual Intensive Functional Training on Somatosensory Hand Function in Children with Unilateral Spastic Cerebral Palsy: An Observational Study. J Clin Med 2023; 12:jcm12041595. [PMID: 36836129 PMCID: PMC9960591 DOI: 10.3390/jcm12041595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023] Open
Abstract
(1) Background: Next to motor impairments, children with unilateral spastic cerebral palsy (CP) often experience sensory impairments. Intensive bimanual training is well known for improving motor abilities, though its effect on sensory impairments is less known. (2) Objective: To investigate whether bimanual intensive functional therapy without using enriched sensory materials improves somatosensory hand function. (3) Methods: A total of twenty-four participants with CP (12-17 years of age) received 80-90 h of intensive functional training aimed at improving bimanual performance in daily life. Somatosensory hand function was measured before training, directly after training, and at six months follow-up. Outcome measures were: proprioception, measured by thumb and wrist position tasks and thumb localization tasks; vibration sensation; tactile perception; and stereognosis. (4) Results: Next to improving on their individual treatment goals, after training, participants also showed significant improvements in the perception of thumb and wrist position, vibration sensation, tactile perception, and stereognosis of the more affected hand. Improvements were retained at six months follow-up. Conversely, proprioception measured by the thumb localization tasks did not improve after training. (5) Conclusions: Intensive functional bimanual training without environmental tactile enrichment may improve the somatosensory function of the more affected hand in children with unilateral spastic CP.
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Affiliation(s)
- Catherine V. M. Steinbusch
- Adelante Rehabilitation Centre, 6301 KA Valkenburg, The Netherlands
- Research School CAPHRI, Department of Rehabilitation Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
- Correspondence:
| | - Anke Defesche
- Adelante Rehabilitation Centre, 6301 KA Valkenburg, The Netherlands
| | | | - Eugene A. A. Rameckers
- Research School CAPHRI, Department of Rehabilitation Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
- Adelante Centre of Expertise in Rehabilitation and Audiology, 6432 CC Hoensbroek, The Netherlands
- Paediatric Rehabilitation, Biomed, Faculty of Medicine & Health Science, Hasselt University, 3500 Hasselt, Belgium
| | - Annemarie C. S. Knijnenburg
- Department of Neurology, Maastricht University Medical Centre+, 6229 ER Maastricht, The Netherlands
- Research School Mental Health and NeuroScience, Maastricht University Medical Centre+, 6229 ER Maastricht, The Netherlands
| | - Jeroen R. J. Vermeulen
- Department of Neurology, Maastricht University Medical Centre+, 6229 ER Maastricht, The Netherlands
- Research School Mental Health and NeuroScience, Maastricht University Medical Centre+, 6229 ER Maastricht, The Netherlands
| | - Yvonne J. M. Janssen-Potten
- Research School CAPHRI, Department of Rehabilitation Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
- Adelante Centre of Expertise in Rehabilitation and Audiology, 6432 CC Hoensbroek, The Netherlands
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4
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Kuo HC, Ferre CL, Chin KY, Friel KM, Gordon AM. Mirror movements and brain pathology in children with unilateral cerebral palsy. Dev Med Child Neurol 2023; 65:264-273. [PMID: 35751166 DOI: 10.1111/dmcn.15322] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 05/21/2022] [Accepted: 05/23/2022] [Indexed: 01/04/2023]
Abstract
AIM We systematically examined the relationship between mirror movements and brain lesion type, corticospinal tract (CST) organization, and hand function to determine the relevance between mirror movements, brain lesion, the CST pattern, and hand function in children with unilateral cerebral palsy (CP). METHOD Forty-eight children (mean age 9y 9mo [SD 3y 3mo], range 6-18y; 30 males, 18 females) with unilateral CP participated. Mirror movements, brain lesion type, CST pattern identified by transcranial magnetic stimulation, and clinical outcomes were evaluated. Children performed four unilateral tasks: hand opening/closing, finger opposition, individuation, and finger 'walking'. Mirror movements induced in the contralateral hand were scored using standardized criteria (scores 0-4 using the Woods and Teuber scale). RESULTS We found that children with periventricular lesion may have stronger mirror movement scores induced in either hand than those with middle cerebral artery lesion (more affected hand: p=0.02; less affected hand: p<0.01). The highest mirror movement score a child exhibits across the tested tasks (i.e. scores of 3-4 using the Woods and Teuber scoring criteria) may potentially be an indicator of an ipsilateral CST connectivity pattern (p=0.03). Significant correlations were observed between higher mirror movement scores when performing hand opening/closing as well as finger walking and better unimanual dexterity (Spearman's rank correlation coefficient rs =0.44, p=0.002; rs =0.46, p=0.002 respectively). INTERPRETATION Brain lesions may be predictive of the strength of mirror movements in either hand in children with unilateral CP. Our findings warrant further studies to extensively investigate the relationship between mirror movements and the underlying brain pathology. WHAT THIS PAPER ADDS Brain lesion type may be predictive of mirror movement scores induced in either hand in children with unilateral cerebral palsy. The highest mirror movement score a child exhibits across the tested tasks may indicate corticospinal tract connectivity pattern in children with unilateral cerebral palsy.
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Affiliation(s)
- Hsing-Ching Kuo
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, USA.,Department of Physical Medicine & Rehabilitation, University of California Davis, Sacramento, CA, USA
| | - Claudio L Ferre
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, USA.,Department of Occupational Therapy, Boston University, Boston, MA, USA
| | - Karen Y Chin
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, USA
| | | | - Andrew M Gordon
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, USA
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5
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Jiang B, Mackay MT, Stence N, Domi T, Dlamini N, Lo W, Wintermark M. Neuroimaging in Pediatric Stroke. Semin Pediatr Neurol 2022; 43:100989. [PMID: 36344022 DOI: 10.1016/j.spen.2022.100989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022]
Abstract
Pediatric stroke is unfortunately not a rare condition. It is associated with severe disability and mortality because of the complexity of potential clinical manifestations, and the resulting delay in seeking care and in diagnosis. Neuroimaging plays an important role in the multidisciplinary response for pediatric stroke patients. The rapid development of adult endovascular thrombectomy has created a new momentum in health professionals caring for pediatric stroke patients. Neuroimaging is critical to make decisions of identifying appropriate candidates for thrombectomy. This review article will review current neuroimaging techniques, imaging work-up strategies and special considerations in pediatric stroke. For resources limited areas, recommendation of substitute imaging approaches will be provided. Finally, promising new techniques and hypothesis-driven research protocols will be discussed.
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Affiliation(s)
- Bin Jiang
- Department of Radiology, Neuroradiology Section, Stanford University, Stanford, CA.
| | - Mark T Mackay
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Victoria, Australia.
| | - Nicholas Stence
- Department of Radiology, pediatric Neuroradiology Section, University of Colorado School of Medicine, Aurora, CO
| | - Trish Domi
- Department of Neurology, Hospital for Sick Children, Toronto, Canada.
| | - Nomazulu Dlamini
- Department of Neurology, Hospital for Sick Children, Toronto, Canada.
| | - Warren Lo
- Department of Pediatrics and Neurology, The Ohio State University & Nationwide Children's Hospital, Columbus, OH.
| | - Max Wintermark
- Department of Neuroradiology, University of Texas MD Anderson Center, Houston, TX.
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6
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Trevarrow M, Sanmann JN, Wilson TW, Kurz MJ. A Val 66Met polymorphism is associated with weaker somatosensory cortical activity in individuals with cerebral palsy. Heliyon 2022; 8:e10545. [PMID: 36119851 PMCID: PMC9474307 DOI: 10.1016/j.heliyon.2022.e10545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 06/21/2022] [Accepted: 08/31/2022] [Indexed: 11/27/2022] Open
Abstract
Background The brain-derived neurotrophic factor (BDNF) protein plays a prominent role in the capacity for neuroplastic change. However, a single nucleotide polymorphism at codon 66 of the BDNF gene results in significant reductions in neuroplastic change. Potentially, this polymorphism also contributes to the weaker somatosensory cortical activity that has been extensively reported in the neuroimaging literature on cerebral palsy (CP). Aims The primary objective of this study was to use magnetoencephalography (MEG) to probe if BDNF genotype affects the strength of the somatosensory-evoked cortical activity seen within individuals with CP. Methods and procedures and Procedures: Twenty individuals with CP and eighteen neurotypical controls participated. Standardized low resolution brain electromagnetic tomography (sLORETA) was used to image the somatosensory cortical activity evoked by stimulation of the tibial nerve. BDNF genotypes were determined from saliva samples. Outcomes and results The somatosensory cortical activity was weaker in individuals with CP compared to healthy controls (P = 0.04). The individuals with a Val66Met or Met66Met BDNF polymorphism also showed a reduced response compared to the individuals without the polymorphism (P = 0.03), had higher GMFCS levels (P = 0.04), and decreased walking velocity (P = 0.05). Conclusions and implications These results convey that BDNF genotype influences the strength of the somatosensory activity and mobility in individuals with CP. What this paper adds Previous literature has extensively documented altered sensorimotor cortical activity in individuals with CP, which ultimately contributes to the clinical deficits in sensorimotor processing documented in this population. While some individuals with CP see vast improvements in their sensorimotor functioning following therapeutic intervention, others are clear non-responders. The underlying basis for this discrepancy is not well understood. Our study is the first to identify that a polymorphism at the gene that codes for brain derived neurotrophic factor (BDNF), a protein well-known to be involved in the capacity for neuroplastic change, may influence the altered sensorimotor cortical activity within this population. Potentially, individuals with CP that have a polymorphism at the BDNF gene may reflect those that have difficulties in achieving beneficial outcomes following intervention. Thus, these individuals may require different therapeutic approaches in order to stimulate neuroplastic change and get similar benefits from therapy as their neurotypical peers.
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Affiliation(s)
- Michael Trevarrow
- Institute for Human Neuroscience, Boys Town National Research Hospital, Omaha, NE, USA
| | - Jennifer N Sanmann
- Department of Genetic Medicine, Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, NE, USA
| | - Tony W Wilson
- Institute for Human Neuroscience, Boys Town National Research Hospital, Omaha, NE, USA.,Department of Pharmacology and Neuroscience, College of Medicine, Creighton University, Omaha, NE, USA
| | - Max J Kurz
- Institute for Human Neuroscience, Boys Town National Research Hospital, Omaha, NE, USA.,Department of Pharmacology and Neuroscience, College of Medicine, Creighton University, Omaha, NE, USA
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7
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Kuo HC, Litzenberger J, Nettel-Aguirre A, Zewdie E, Kirton A. Exploring Clinical and Neurophysiological Factors Associated with Response to Constraint Therapy and Brain Stimulation in Children with Hemiparetic Cerebral Palsy. Dev Neurorehabil 2022; 25:229-238. [PMID: 34392795 DOI: 10.1080/17518423.2021.1964103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Perinatal stroke causes hemiparetic cerebral palsy (HCP) and lifelong disability. Constraint-induced movement therapy (CIMT) and neurostimulation may enhance motor function, but the individual factors associated with responsiveness are undetermined. OBJECTIVE We explored the clinical and neurophysiological factors associated with responsiveness to CIMT and/or brain stimulation within a clinical trial. METHODS PLASTIC CHAMPS was a randomized, blinded, sham-controlled trial (n = 45) of CIMT and neurostimulation paired with intensive, goal-directed therapy. Primary outcome was the Assisting Hand Assessment (AHA). Classification trees created through recursive partitioning suggested clinical and neurophysiological profiles associated with improvement at 6-months. RESULTS Both clinical (stroke side (left) and age >14 years) and neurophysiological (intracortical inhibition/facilitation and motor threshold) were associated with responsiveness across treatment groups with positive predictive values (PPV) approaching 80%. CONCLUSION This preliminary analysis suggested sets of variables that may be associated with response to intensive therapies in HCP. Further modeling in larger trials is required.
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Affiliation(s)
- Hsing-Ching Kuo
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Alberta Children's Hospital Research Institute, Calgary, Canada.,Department of Pediatrics and Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, Canada
| | | | - Alberto Nettel-Aguirre
- Alberta Children's Hospital Research Institute, Calgary, Canada.,Departments of Pediatrics and Community Health Sciences, Primary Institution is the University of Calgary, Calgary, Canada.,O'Brien Institute for Public Health, University of Calgary, Calgary, Canada
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Alberta Children's Hospital Research Institute, Calgary, Canada.,Department of Pediatrics and Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Alberta Children's Hospital Research Institute, Calgary, Canada.,Department of Pediatrics and Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, Canada
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8
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Kuo HC, Zewdie E, Giuffre A, Gan LS, Carlson HL, Wrightson J, Kirton A. Robotic mapping of motor cortex in children with perinatal stroke and hemiparesis. Hum Brain Mapp 2022; 43:3745-3758. [PMID: 35451540 PMCID: PMC9294290 DOI: 10.1002/hbm.25881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/15/2022] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
Brain stimulation combined with intensive therapy may improve hand function in children with perinatal stroke‐induced unilateral cerebral palsy (UCP). However, response to therapy varies and underlying neuroplasticity mechanisms remain unclear. Here, we aimed to characterize robotic motor mapping outcomes in children with UCP. Twenty‐nine children with perinatal stroke and UCP (median age 11 ± 2 years) were compared to 24 typically developing controls (TDC). Robotic, neuronavigated transcranial magnetic stimulation was employed to define bilateral motor maps including area, volume, and peak motor evoked potential (MEP). Map outcomes were compared to the primary clinical outcome of the Jebsen–Taylor Test of Hand Function (JTT). Maps were reliably obtained in the contralesional motor cortex (24/29) but challenging in the lesioned hemisphere (5/29). Within the contralesional M1 of participants with UCP, area and peak MEP amplitude of the unaffected map were larger than the affected map. When comparing bilateral maps within the contralesional M1 in children with UCP to that of TDC, only peak MEP amplitudes were different, being smaller for the affected hand as compared to TDC. We observed correlations between the unaffected map when stimulating the contralesional M1 and function of the unaffected hand. Robotic motor mapping can characterize motor cortex neurophysiology in children with perinatal stroke. Map area and peak MEP amplitude may represent discrete biomarkers of developmental plasticity in the contralesional M1. Correlations between map metrics and hand function suggest clinical relevance and utility in studies of interventional plasticity.
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Affiliation(s)
- Hsing-Ching Kuo
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Physical Medicine & Rehabilitation, University of California Davis, Sacramento, California, USA
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adrianna Giuffre
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Liu Shi Gan
- Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada
| | - Helen L Carlson
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - James Wrightson
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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9
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Saiote C, Sutter E, Xenopoulos-Oddsson A, Rao R, Georgieff M, Rudser K, Peyton C, Dean D, McAdams RM, Gillick B. Study Protocol: Multimodal Longitudinal Assessment of Infant Brain Organization and Recovery in Perinatal Brain Injury. Pediatr Phys Ther 2022; 34:268-276. [PMID: 35385465 PMCID: PMC9200232 DOI: 10.1097/pep.0000000000000886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Perinatal brain injury is a primary cause of cerebral palsy, a condition resulting in lifelong motor impairment. Infancy is an important period of motor system development, including development of the corticospinal tract (CST), the primary pathway for cortical movement control. The interaction between perinatal stroke recovery, CST organization, and resultant motor outcome in infants is not well understood. METHODS Here, we present a protocol for multimodal longitudinal assessment of brain development and motor function following perinatal brain injury using transcranial magnetic stimulation and magnetic resonance imaging to noninvasively measure CST functional and structural integrity across multiple time points in infants 3 to 24 months of age. We will further assess the association between cortical excitability, integrity, and motor function. DISCUSSION This protocol will identify bioindicators of motor outcome and neuroplasticity and subsequently inform early detection, diagnosis, and intervention strategies for infants with perinatal stroke, brain bleeds, and related diagnoses.
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Affiliation(s)
- Catarina Saiote
- Waisman Center (Drs Saiote, Sutter, Dean, and Gillick), Department of Pediatrics (Drs Dean, McAdams, and Gillick), and Department of Medical Physics (Dr Dean), University of Wisconsin-Madison, Madison, Wisconsin; Department of Rehabilitation Medicine (Dr Sutter and Ms Xenopoulos-Oddsson), Department of Pediatrics (Drs Rao and Georgieff), and Division of Biostatistics (Dr Rudser), University of Minnesota, Minneapolis, Minnesota; Department of Physical Therapy and Human Movement Sciences, Department of Pediatrics (Dr Peyton), Northwestern University, Chicago, Illinois
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10
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Jobst C, D'Souza SJ, Causton N, Master S, Switzer L, Cheyne D, Fehlings D. Somatosensory Plasticity in Hemiplegic Cerebral Palsy Following Constraint Induced Movement Therapy. Pediatr Neurol 2022; 126:80-88. [PMID: 34742103 DOI: 10.1016/j.pediatrneurol.2021.09.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/16/2021] [Accepted: 09/25/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Children with hemiplegic cerebral palsy (HCP) experience upper limb somatosensory and motor deficits. Although constraint-induced movement therapy (CIMT) improves motor function, its impact on somatosensory function remains underinvestigated. OBJECTIVE The objective of this study was to evaluate somatosensory perception and related brain responses in children with HCP, before and after a somatosensory enhanced CIMT protocol, as measured using clinical sensory and motor assessments and magnetoencephalography. METHODS Children with HCP attended a somatosensory enhanced CIMT camp. Clinical somatosensory (tactile registration, 2-point discrimination, stereognosis, proprioception, kinesthesia) and motor outcomes (Quality of Upper Extremity Skills [QUEST] Total/Grasp, Jebsen-Taylor Hand Function Test, grip strength, Assisting Hand Assessment), as well as latency and amplitude of magnetoencephalography somatosensory evoked fields (SEF), were assessed before and after the CIMT camp with paired sample t-tests or Wilcoxon signed-rank tests. RESULTS Twelve children with HCP (mean age: 7.5 years, standard deviation: 2.4) participated. Significant improvements in tactile registration for the affected (hemiplegic) hand (Z = 2.39, P = 0.02) were observed in addition to statistically and clinically significant improvements in QUEST total (t = 3.24, P = 0.007), QUEST grasp (t = 3.24, P = 0.007), Assisting Hand Assessment (Z = 2.25, P = 0.03), and Jebsen-Taylor Hand Function Test (t = -2.62, P = 0.03). A significant increase in the SEF peak amplitude was also found in the affected hand 100 ms after stimulus onset (t = -2.22, P = 0.04). CONCLUSIONS Improvements in somatosensory clinical function and neural processing in the affected primary somatosensory cortex in children with HCP were observed after a somatosensory enhanced CIMT program. Further investigation is warranted to continue to evaluate the effectiveness of a sensory enhanced CIMT program in larger samples and controlled study designs.
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Affiliation(s)
- Cecilia Jobst
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Samantha J D'Souza
- Rehabilitation Science Institute, University of Toronto, Toronto, Ontario, Canada; Holland Bloorview Kids Rehabilitation Hospital, Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Natasha Causton
- Holland Bloorview Kids Rehabilitation Hospital, Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Sabah Master
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Lauren Switzer
- Holland Bloorview Kids Rehabilitation Hospital, Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Douglas Cheyne
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada; Holland Bloorview Kids Rehabilitation Hospital, Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Darcy Fehlings
- Rehabilitation Science Institute, University of Toronto, Toronto, Ontario, Canada; Holland Bloorview Kids Rehabilitation Hospital, Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada.
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11
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Newell KM, Rovegno I. Teaching Children's Motor Skills for Team Games Through Guided Discovery: How Constraints Enhance Learning. Front Psychol 2021; 12:724848. [PMID: 34955954 PMCID: PMC8707507 DOI: 10.3389/fpsyg.2021.724848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 11/08/2021] [Indexed: 11/23/2022] Open
Abstract
In this paper we examine the role of instructional strategies as constraints within a discovery learning framework for the teaching of open skill team ball games to elementary school-aged children. The cohesive and adaptive integration of constraints (individual, environment, and task) by practitioners of movement and physical activity (instructor, teacher, coach) is proposed as the pathway to exploiting the effectiveness of guided discovery learning. The qualitative analysis of the practical instantiations of this framework by expert teachers is examined with respect to the learning of open skill team invasion games (e.g., basketball, soccer). The primary constraints to action in this learning-teaching developmental framework are coordinated so as to keep the self-organization of skill development (movement pattern and tactics) continually evolving, while preserving the child's motivation and enjoyment for the expanding repertoire and performance capacity of his/her perceptual-motor skills. In this open skill and elementary school age-related context, generality and specificity are both necessary and complementary in the expression of task, skill and practice influences on motor learning and performance.
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Affiliation(s)
- Karl M. Newell
- Department of Kinesiology, University of Georgia, Athens, GA, United States
| | - Inez Rovegno
- College of Education, University of Alabama, Tuscaloosa, AL, United States
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12
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Motor Organization in Schizencephaly: Outcomes of Transcranial Magnetic Stimulation and Diffusion Tensor Imaging of Motor Tract Projections Correlate with the Different Domains of Hand Function. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9956609. [PMID: 34527746 PMCID: PMC8437638 DOI: 10.1155/2021/9956609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/12/2021] [Accepted: 08/14/2021] [Indexed: 12/30/2022]
Abstract
Objective Schizencephaly is a rare congenital malformation that causes motor impairment. To determine the treatment strategy, each domain of the motor functions should be appropriately evaluated. We correlated a color map of diffusion tensor imaging (DTI) and transcranial magnetic stimulation (TMS) with the hand function test (HFT) to identify the type of hand function that each test (DTI and TMS) reflects. Further, we attempted to demonstrate the motor neuron organization in schizencephaly. Method This retrospective study was conducted on 12 patients with schizencephaly. TMS was conducted in the first dorsal interosseous (FDI), biceps (BB), and deltoid muscles of the upper extremity, and contralateral MEP (cMEP) and ipsilateral MEP (iMEP) were recorded. The HFT included the grip strength, box and block (B&B), and 9-hole peg test. The schizencephalic cleft was confirmed using magnetic resonance imaging, and the corticospinal tract (CST) was identified using the color map of DTI. The symmetry indices for the peduncle and CST at pons level were calculated as the ratios of the cross-sectional area of the less-affected side and that of the more-affected side. Result In the more-affected hemisphere TMS, no iMEP was obtained. In the less-affected hemisphere TMS, the iMEP response was detected in 9 patients and cMEP in all patients, which was similar to the pattern observed in unilateral lesion. Paretic hand grip strength was strongly correlated with the presence of iMEP (p = 0.044). The symmetry index of the color map of DTI was significantly correlated with the B&B (p = 0.008, R 2 = 0.416), whereas the symmetry index of the peduncle was not correlated with all HFTs. Conclusion In patients with schizencephaly, the iMEP response rate is correlated with the hand function related to strength, while the symmetricity of the CST by the color map of DTI is correlated with the hand function associated with dexterity. Additionally, we suggest the possible motor organization pattern of schizencephaly following interhemispheric competition.
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13
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Azizi S, Irani A, Shahrokhi A, Rahimian E, Mirbagheri MM. Contribution of altered corticospinal microstructure to gait impairment in children with cerebral palsy. Clin Neurophysiol 2021; 132:2211-2221. [PMID: 34311204 DOI: 10.1016/j.clinph.2021.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Corticospinal tract (CST) injury may lead to motor disorders in children with Cerebral Palsy (CP). However, the precise underlying mechanisms are still ambiguous. We aimed to characterize the CST structure and function in children with CP and determine their contributions to balance and gait impairments. METHOD Twenty-six children with spastic CP participated. Transcranial magnetic stimulation (TMS) and diffusion tensor imaging (DTI) were utilized to characterize CST structure and function. Common clinical measures were used to assess gait speed, endurance and balance, and mobility. RESULTS CST structure and function were significantly altered in children with CP. Different abnormal patterns of CST structure were identified as either abnormal appearance of brain hemispheres (Group-1) or semi-normal CST appearance (Group-2). We found significant correlations between the DTI parameters of the more affected CST and gait features only in Group-1. CONCLUSION CST structure and function are abnormal in children with CP and these abnormalities may contribute to balance and gait impairment in some children with CP. SIGNIFICANCE Our findings may lead to the development of further investigations on the mechanisms underlying gait impairment in children with CP and on decision-making for more effective rehabilitation.
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Affiliation(s)
- Shahla Azizi
- Medical Physics and Biomedical Engineering Department, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ashkan Irani
- Department of Occupational Therapy, Faculty of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Elham Rahimian
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
| | - Mehdi M Mirbagheri
- Medical Physics and Biomedical Engineering Department, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Physical Medicine and Rehabilitation Department, Northwestern University, USA.
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14
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Perinatal stroke: mapping and modulating developmental plasticity. Nat Rev Neurol 2021; 17:415-432. [PMID: 34127850 DOI: 10.1038/s41582-021-00503-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2021] [Indexed: 02/04/2023]
Abstract
Most cases of hemiparetic cerebral palsy are caused by perinatal stroke, resulting in lifelong disability for millions of people. However, our understanding of how the motor system develops following such early unilateral brain injury is increasing. Tools such as neuroimaging and brain stimulation are generating informed maps of the unique motor networks that emerge following perinatal stroke. As a focal injury of defined timing in an otherwise healthy brain, perinatal stroke represents an ideal human model of developmental plasticity. Here, we provide an introduction to perinatal stroke epidemiology and outcomes, before reviewing models of developmental plasticity after perinatal stroke. We then examine existing therapeutic approaches, including constraint, bimanual and other occupational therapies, and their potential synergy with non-invasive neurostimulation. We end by discussing the promise of exciting new therapies, including novel neurostimulation, brain-computer interfaces and robotics, all focused on improving outcomes after perinatal stroke.
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15
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Robert MT, Ferre CL, Chin KY, Brandao MB, Carmel J, Araneda R, Bleyenheuft Y, Friel K, Gordon AM. Intensive Bimanual Intervention for Children Who Have Undergone Hemispherectomy: A Pilot Study. Pediatr Phys Ther 2021; 33:120-127. [PMID: 34151886 DOI: 10.1097/pep.0000000000000804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To conduct a pilot study to assess the feasibility and effectiveness of an intensive bimanual intervention on upper limb function in children who have undergone hemispherectomy. METHODS Thirteen children received 90 hours of intensive bimanual training (Hand-Arm Bimanual Intensive Therapy, HABIT). The Jebsen-Taylor Test of Hand Function (JTTHF), Box and Block Test (BBT), Assisting Hand Assessment (AHA), ABILHAND-Kids, and Canadian Occupational Performance Measure (COPM) were assessed by a masked clinician twice before, immediately, and 6 months after treatment. RESULTS Significant improvements over time were found in the JTTHF, AHA, ABILHAND-Kids, and COPM. CONCLUSION Completion of HABIT was feasible for children with hemispherectomy. Improvement of bimanual function and functional goals can be related to the nature of the activities prioritized in HABIT training.
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Affiliation(s)
- Maxime T Robert
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration (Dr Robert), Faculty of Medicine, Université Laval, Quebec, Canada; Department of Occupational Therapy (Dr Ferre), Boston University, Boston, Massachusetts; Department of Biobehavioral Sciences (Ms Chin and Dr Gordon), Teachers College, Columbia University, New York, New York; Burke Neurological Institute (Ms Chin and Dr Friel), Weill Cornell Medicine, New York, New York; Graduate Program in Rehabilitation Sciences (Dr Brandao), School of Physical Education, Physical Therapy and Occupational Therapy, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Weinberg Family Cerebral Palsy Center (Dr Carmel), Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Institute of Neuroscience (Drs Araneda and Bleyenheuft), Université catholique de Louvain, Brussels, Belgium
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16
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Robert MT, Gutterman J, Ferre CL, Chin K, Brandao MB, Gordon AM, Friel K. Corpus Callosum Integrity Relates to Improvement of Upper-Extremity Function Following Intensive Rehabilitation in Children With Unilateral Spastic Cerebral Palsy. Neurorehabil Neural Repair 2021; 35:534-544. [PMID: 33955304 PMCID: PMC8135240 DOI: 10.1177/15459683211011220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Background The corpus callosum (CC) plays an important role in upper extremity (UE) function. The impact on UE function in children with unilateral spastic cerebral palsy (USCP) and improvements following intensive interventions remain unknown. Objectives To examine the (1) relationship between UE function and CC integrity and (2) relationship between CC integrity and changes in UE function following intensive interventions. Methods We retrospectively analyzed clinical and neuroimaging data from a sample of convenience of 44 participants (age 9.40 ± 3.10 years) from 2 larger trials. Participants received 90 hours of Hand-Arm Bimanual Intensive Therapy (HABIT) or Constraint-Induced Movement Therapy (CIMT). Unimanual dexterity (Jebsen-Taylor Test of Hand Function [JTTHF]) and bimanual performance (Assisting Hand Assessment [AHA]) were assessed preintervention and postintervention. CC tractography was reconstructed with diffusion tensor imaging (DTI) and segmented into 3 regions (genu, midbody, splenium). Pearson correlations and regression were used to assess the relationship between outcomes and DTI parameters (ie, fractional anisotropy [FA], number of streamlines, and mean, radial, and axial diffusivity). Results Both groups improved in bimanual performance (P < .01). The CIMT group improved in unimanual dexterity (P < .01). Baseline unimanual dexterity and bimanual performance correlated with FA and number of streamlines for most CC regions (P < .05). Following CIMT, pre-post changes in JTTHF were negatively correlated with axial and radial diffusivity of the CC, and AHA with splenium and number of streamlines for the CC, midbody, and splenium (all P < .05). Following HABIT, midbody FA was positively correlated with pre-post AHA changes (r = 0.417; P = .042). Conclusions CC integrity is important for UE function in children with USCP.
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Affiliation(s)
| | | | | | | | - Marina B Brandao
- Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Kathleen Friel
- Burke Neurological Institute, Weill Cornell Medicine, New York, NY, USA
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17
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Friel KM, Ferre CL, Brandao M, Kuo HC, Chin K, Hung YC, Robert MT, Flamand VH, Smorenburg A, Bleyenheuft Y, Carmel JB, Campos T, Gordon AM. Improvements in Upper Extremity Function Following Intensive Training Are Independent of Corticospinal Tract Organization in Children With Unilateral Spastic Cerebral Palsy: A Clinical Randomized Trial. Front Neurol 2021; 12:660780. [PMID: 34012418 PMCID: PMC8127842 DOI: 10.3389/fneur.2021.660780] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/06/2021] [Indexed: 12/30/2022] Open
Abstract
Background/Objectives: Intensive training of the more affected upper extremity (UE) has been shown to be effective for children with unilateral spastic cerebral palsy (USCP). Two types of UE training have been particularly successful: Constraint-Induced Movement Therapy (CIMT) and Bimanual training. Reorganization of the corticospinal tract (CST) early during development often occurs in USCP. Prior studies have suggested that children with an ipsilateral CST controlling the affected UE may improve less following CIMT than children with a contralateral CST. We tested the hypothesis that improvements in UE function after intensive training depend on CST laterality. Study Participants and Setting: Eighty-two children with USCP, age 5 years 10 months to 17 years, University laboratory setting. Materials/Methods: Single-pulse transcranial magnetic stimulation (TMS) was used to determine each child's CST connectivity pattern. Children were stratified by age, sex, baseline hand function and CST connectivity pattern, and randomized to receive either CIMT or Bimanual training, each of which were provided in a day-camp setting (90 h). Hand function was tested before, immediately and 6 months after the intervention with the Jebsen-Taylor Test of Hand Function, the Assisting Hand Assessment, the Box and Block Test, and ABILHAND-Kids. The Canadian Occupational Performance Measure was used to track goal achievement and the Pediatric Evaluation of Disability Inventory was used to assess functioning in daily living activities at home. Results: In contrast to our hypothesis, participants had statistically similar improvements for both CIMT and Bimanual training for all measures independent of their CST connectivity pattern (contralateral, ipsilateral, or bilateral) (p < 0.05 in all cases). Conclusions/Significance: The efficacy of CIMT and Bimanual training is independent of CST connectivity pattern. Children with an ipsilateral CST, previously thought to be maladaptive, have the capacity to improve as well as children with a contralateral or bilateral CST following intensive CIMT or Bimanual training. Clinical Trial Registration:www.ClinicalTrials.gov, identifier NCT02918890.
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Affiliation(s)
- Kathleen M Friel
- Burke Neurological Institute, White Plains, NY, United States.,Weill Cornell Medicine, New York, NY, United States
| | - Claudio L Ferre
- Burke Neurological Institute, White Plains, NY, United States.,Teachers College, Columbia University, New York, NY, United States
| | - Marina Brandao
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Hsing-Ching Kuo
- Teachers College, Columbia University, New York, NY, United States
| | - Karen Chin
- Burke Neurological Institute, White Plains, NY, United States.,Teachers College, Columbia University, New York, NY, United States
| | - Ya-Ching Hung
- Queens College, City University of New York, New York, NY, United States
| | - Maxime T Robert
- Burke Neurological Institute, White Plains, NY, United States.,Weill Cornell Medicine, New York, NY, United States
| | | | - Ana Smorenburg
- Burke Neurological Institute, White Plains, NY, United States.,Weill Cornell Medicine, New York, NY, United States
| | | | - Jason B Carmel
- Weinberg Family Cerebral Palsy Center, Columbia University Medical Center, New York, NY, United States
| | - Talita Campos
- Burke Neurological Institute, White Plains, NY, United States.,Teachers College, Columbia University, New York, NY, United States
| | - Andrew M Gordon
- Teachers College, Columbia University, New York, NY, United States
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18
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Araneda R, Dricot L, Ebner-Karestinos D, Paradis J, Gordon AM, Friel KM, Bleyenheuft Y. Brain activation changes following motor training in children with unilateral cerebral palsy: An fMRI study. Ann Phys Rehabil Med 2021; 64:101502. [PMID: 33647530 DOI: 10.1016/j.rehab.2021.101502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/18/2020] [Accepted: 12/21/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Intensive motor-learning-based interventions have demonstrated efficacy for improving motor function in children with unilateral spastic cerebral palsy (USCP). Although this improvement has been associated mainly with neuroplastic changes in the primary sensori-motor cortices, this plasticity may also involve a wider fronto-parietal network for motor learning. OBJECTIVE To determine whether hand-arm bimanual intensive therapy including lower extremities (HABIT-ILE) induces brain activation changes in an extensive network for motor skill learning and whether these changes are related to functional changes observed after HABIT-ILE. METHODS In total, 25 children with USCP were behaviourally assessed in manual dexterity and everyday activities before and after HABIT-ILE. Functional imagery monitored brain activity while participants manipulated objects using their less-affected, more-affected or both hands. Two random-effects-group analyses performed at the whole-brain level assessed the brain activity network before and after therapy. Three other random-effects-group analyses assessed brain activity changes after therapy. Spearman's correlations were used to evaluate the correlation between behavioural and brain activity changes. RESULTS The same fronto-parietal network was identified before and after therapy. After the intervention, the more-affected hand manipulation elicited a decrease in activity on the motor cortex of the non-lesional hemisphere and an increase in activity on motor areas of the lesional hemisphere. The less-affected hand manipulation generated a decrease in activity of sensorimotor areas in the non-lesional hemisphere. Both-hands manipulation elicited an increase in activity of both hemispheres. Furthermore, we observed an association between brain activity changes and changes in everyday activity assessments. CONCLUSION Brain activation changes were observed in a fronto-parietal network underlying motor skill learning with HABIT-ILE in children with USCP. Two different patterns were observed, probably related to different phases of motor skill learning, representing an increased practice-dependent brain recruitment or a brain activation refinement by more efficient means. CLINICALTRIALS.GOV: NCT01700777 &NCT02667613.
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Affiliation(s)
- Rodrigo Araneda
- Institute of neuroscience, Université catholique de Louvain, Brussels, Belgium
| | - Laurance Dricot
- Institute of neuroscience, Université catholique de Louvain, Brussels, Belgium
| | | | - Julie Paradis
- Institute of neuroscience, Université catholique de Louvain, Brussels, Belgium
| | - Andrew M Gordon
- Department of biobehavioural sciences, Teachers college, Columbia University, New York, USA
| | - Kathleen M Friel
- Burke-Cornell medical research institute, White Plains, New York, USA
| | - Yannick Bleyenheuft
- Institute of neuroscience, Université catholique de Louvain, Brussels, Belgium.
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19
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Tymofiyeva O, Gaschler R. Training-Induced Neural Plasticity in Youth: A Systematic Review of Structural and Functional MRI Studies. Front Hum Neurosci 2021; 14:497245. [PMID: 33536885 PMCID: PMC7848153 DOI: 10.3389/fnhum.2020.497245] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 12/01/2020] [Indexed: 01/17/2023] Open
Abstract
Experience-dependent neural plasticity is high in the developing brain, presenting a unique window of opportunity for training. To optimize existing training programs and develop new interventions, it is important to understand what processes take place in the developing brain during training. Here, we systematically review MRI-based evidence of training-induced neural plasticity in children and adolescents. A total of 71 articles were included in the review. Significant changes in brain activation, structure, microstructure, and structural and functional connectivity were reported with different types of trainings in the majority (87%) of the studies. Significant correlation of performance improvement with neural changes was reported in 51% of the studies. Yet, only 48% of the studies had a control condition. Overall, the review supports the hypothesized neural changes with training while at the same time charting empirical and methodological desiderata for future research.
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Affiliation(s)
- Olga Tymofiyeva
- Department of Radiology & Biomedical Imaging, University of California, San Francisco, CA, United States.,Department of Psychology, University of Hagen, Hagen, Germany
| | - Robert Gaschler
- Department of Psychology, University of Hagen, Hagen, Germany
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20
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Imaging Developmental and Interventional Plasticity Following Perinatal Stroke. Can J Neurol Sci 2020; 48:157-171. [DOI: 10.1017/cjn.2020.166] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
ABSTRACT:Perinatal stroke occurs around the time of birth and leads to lifelong neurological disabilities including hemiparetic cerebral palsy. Magnetic resonance imaging (MRI) has revolutionized our understanding of developmental neuroplasticity following early injury, quantifying volumetric, structural, functional, and metabolic compensatory changes after perinatal stroke. Such techniques can also be used to investigate how the brain responds to treatment (interventional neuroplasticity). Here, we review the current state of knowledge of how established and emerging neuroimaging modalities are informing neuroplasticity models in children with perinatal stroke. Specifically, we review structural imaging characterizing lesion characteristics and volumetrics, diffusion tensor imaging investigating white matter tracts and networks, task-based functional MRI for localizing function, resting state functional imaging for characterizing functional connectomes, and spectroscopy examining neurometabolic changes. Key challenges and exciting avenues for future investigations are also considered.
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21
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Carneiro MIS, Russo C, Masson R, Rossi Sebastiano D, Baranello G, Turati C, Bolognini N. Motor learning in unilateral cerebral palsy and the influence of corticospinal tract reorganization. Eur J Paediatr Neurol 2020; 27:49-59. [PMID: 32417186 DOI: 10.1016/j.ejpn.2020.04.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 04/06/2020] [Accepted: 04/25/2020] [Indexed: 11/28/2022]
Abstract
Cerebral Palsy (CP) is a complex neurological disorder, characterized by congenital motor disability associated with behaviour, perception and cognition disorders. The sensorimotor impairments represent the main hallmark of the disease, significantly impacting the quality of life. So far, few studies have investigated motor learning abilities in CP and their association with the plastic reorganization of the motor system remains largely unknown. The present proof-of-principle study explored explicit motor sequence learning in children with unilateral CP and different patterns of motor system reorganization (bilateral, ipsilateral, contralateral). Children with unilateral CP, and a group of age-matched typically developing (TD) children, underwent a sequential finger tapping task, performed with the affected hand by children with CP and with the non-dominant hand by TD children. The pattern of corticospinal tract projections in hemiparetic patients was assessed by single-pulse Transcranial Magnetic Stimulation (TMS). Results showed the presence of finger dexterity impairments in children with unilateral CP presenting with a bilateral or an ipsilateral control of the affected (trained) hand, as compared to TD children. Conversely, motor sequence learning was impaired in unilateral CP with ipsilateral or contralateral corticospinal reorganization, but not in the case of a bilateral control of the paretic hand. These preliminary findings, although referred to small clinical samples, suggest that unilateral control of the paretic upper-limb, from the ipsilateral or the contralateral motor cortex, may not be sufficient to develop typical motor learning with the affected hand, which seems to require a bilateral representation in the motor cortex. This evidence has potential implications for fine motor skills rehabilitation in CP.
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Affiliation(s)
- Maíra I S Carneiro
- University of Milano-Bicocca, Department of Psychology & NeuroMI - Milan Center for Neuroscience, Milan, Italy.
| | - Cristina Russo
- University of Milano-Bicocca, Department of Psychology & NeuroMI - Milan Center for Neuroscience, Milan, Italy
| | - Riccardo Masson
- Fondazione IRCCS Istituto Neurologico C. Besta, Developmental Neurology Unit, Milan, Italy
| | | | - Giovanni Baranello
- Fondazione IRCCS Istituto Neurologico C. Besta, Developmental Neurology Unit, Milan, Italy
| | - Chiara Turati
- University of Milano-Bicocca, Department of Psychology & NeuroMI - Milan Center for Neuroscience, Milan, Italy
| | - Nadia Bolognini
- University of Milano-Bicocca, Department of Psychology & NeuroMI - Milan Center for Neuroscience, Milan, Italy; IRCCS Istituto Auxologico, Laboratory of Neuropsychology, Milan, Italy.
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22
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Simon-Martinez C, Mailleux L, Hoskens J, Ortibus E, Jaspers E, Wenderoth N, Sgandurra G, Cioni G, Molenaers G, Klingels K, Feys H. Randomized controlled trial combining constraint-induced movement therapy and action-observation training in unilateral cerebral palsy: clinical effects and influencing factors of treatment response. Ther Adv Neurol Disord 2020; 13:1756286419898065. [PMID: 32031542 PMCID: PMC6977217 DOI: 10.1177/1756286419898065] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 12/09/2019] [Indexed: 01/21/2023] Open
Abstract
Introduction: Constraint-induced movement therapy (CIMT) improves upper limb (UL) motor
execution in unilateral cerebral palsy (uCP). As these children also show
motor planning deficits, action-observation training (AOT) might be of
additional value. Here, we investigated the combined effect of AOT to CIMT
and identified factors influencing treatment response. Methods: A total of 44 children with uCP (mean 9 years 6 months, SD 1 year 10 months)
participated in a 9-day camp wearing a splint for 6 h/day and were allocated
to the CIMT + AOT (n = 22) and the CIMT + placebo group
(n = 22). The CIMT + AOT group received 15 h of AOT
(i.e. video-observation) and executed the observed tasks, whilst the
CIMT + AOT group watched videos free of biological motion and executed the
same tasks. The primary outcome measure was bimanual performance. Secondary
outcomes included measures of body function and activity level assessed
before (T1), after the intervention (T2), and at 6 months follow-up (T3).
Influencing factors included behavioural and neurological
characteristics. Results: Although no between-groups differences were found
(p > 0.05; η2 = 0–16), the addition of AOT
led to higher gains in children with initially poorer bimanual performance
(p = 0.02; η2 = 0.14). Both groups improved
in all outcome measures after the intervention and retained the gains at
follow up (p < 0.01; η2 = 0.02–0.71). Poor
sensory function resulted in larger improvements in the total group
(p = 0.03; η2 = 0.25) and high amounts of
mirror movements tended to result in a better response to the additional AOT
training (p = 0.06; η2 = 0.18). Improvements
were similar irrespective of the type of brain lesion or corticospinal tract
wiring pattern. Conclusions: Adding AOT to CIMT, resulted in a better outcome for children with poor motor
function and high amounts of mirror movements. CIMT with or without AOT
seems to be more beneficial for children with poor sensory function. Trial registration: Registered at ClinicalTrials.gov on 22nd August 2017 (ClinicalTrials.gov
identifier: NCT03256357).
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Affiliation(s)
- Cristina Simon-Martinez
- KU Leuven, Department of Rehabilitation Sciences, Herestraat 49, bus 1510, Leuven, 3000, Belgium
| | - Lisa Mailleux
- KU Leuven, Department of Rehabilitation Sciences, Leuven, Belgium
| | - Jasmine Hoskens
- KU Leuven, Department of Rehabilitation Sciences, Leuven, Belgium
| | - Els Ortibus
- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
| | - Ellen Jaspers
- Neural Control of Movement Lab, Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | - Nicole Wenderoth
- Neural Control of Movement Lab, Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | - Giuseppina Sgandurra
- Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Calambrone, Italy
| | - Giovanni Cioni
- Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Calambrone, Italy
| | - Guy Molenaers
- KU Leuven, Department of Development and Regeneration, Leuven, Belgium
| | - Katrijn Klingels
- KU Leuven, Department of Rehabilitation Sciences, Leuven, Belgium
| | - Hilde Feys
- KU Leuven, Department of Rehabilitation Sciences, Leuven, Belgium
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Hoffman RM, Wilson TW, Kurz MJ. Hand Motor Actions of Children With Cerebral Palsy Are Associated With Abnormal Sensorimotor Cortical Oscillations. Neurorehabil Neural Repair 2019; 33:1018-1028. [PMID: 31679451 DOI: 10.1177/1545968319883880] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background. The neuroimaging literature on cerebral palsy (CP) has predominantly focused on identifying the structural aberrations (eg, fiber track integrity), with very few studies examining neural activity within the key networks that serve the production of hand movements. Objective. We aimed to start to fill this knowledge gap by using magnetoencephalographic brain imaging to quantify the temporal dynamics of the sensorimotor oscillations during a hand motor action. Methods: Children with CP (n = 12; MACS [Manual Abilities Classification System] levels I-III) and typically developing (TD) children (n = 26) performed an arrow-based version of the Eriksen flanker task where a button press was performed with either the second or third digit of the right hand depending on the arrow's direction. Results: Overall, the children with CP were less accurate and had slower reaction times compared with the TD children. These behavioral differences were closely linked with aberrant sensorimotor cortical oscillations seen in the children with CP. Compared with the TD children, the children with CP had a weaker gamma (68-82 Hz) response during motor execution and a weaker post-movement beta rebound (PMBR; 14-26 Hz) response on movement termination. Moreover, we observed a significant correlation between the amplitude of the gamma and PMBR with reaction time, with weaker gamma and PMBR responses being linked with slower reaction times. Conclusions: Overall, these results suggest that aberrations in motor-related gamma and beta cortical oscillations are associated with the impaired hand motor actions seen in children with CP.
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Affiliation(s)
| | - Tony W Wilson
- University of Nebraska Medical Center, Omaha, NE, USA
| | - Max J Kurz
- University of Nebraska Medical Center, Omaha, NE, USA
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Riddell M, Kuo HC, Zewdie E, Kirton A. Mirror movements in children with unilateral cerebral palsy due to perinatal stroke: clinical correlates of plasticity reorganization. Dev Med Child Neurol 2019; 61:943-949. [PMID: 30690708 DOI: 10.1111/dmcn.14155] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/27/2018] [Indexed: 11/29/2022]
Abstract
AIM We aimed to determine if the mirror movements that often result in children with unilateral cerebral palsy (CP) after perinatal stroke represent a clinical biomarker of developmental plasticity. METHOD This was a prospective, controlled cohort study. Mirror movements in children with unilateral CP from a population-based cohort were compared to those of typically developing controls. The population with stroke was assessed further via electromyography (EMG), motor function, and corticospinal organization investigations. Mirror movements were quantified (0-5) bidirectionally. EMG mirror movements were quantified during voluntary contraction. Motor function was quantified by validated measures including the Assisting Hand Assessment (AHA). Corticospinal organization was categorized as ipsilateral or contralateral using transcranial magnetic stimulation (TMS). The relationships between mirror movements, function, and corticospinal organization were assessed (t-tests, Pearson rank correlation coefficients). RESULTS Ninety-two participants were scored (55 males, 37 females, mean [SD] 12y [5y 6mo], range 4-17y), 63 with complete motor outcomes and 39 with TMS data. EMG ratios correlated with clinical mirror movements (r=0.562, p=0.008). Mild mirror activity in controls declined with age (r=-0.459, p<0.001). Mirroring was stronger with tasks performed by the affected hand (p<0.001). Mirror movements correlated with AHA scores (r=-0.255, p=0.04) and poor motor outcome (p<0.001). Unaffected hand mirror activity was higher in children with ipsilateral corticospinal tract arrangements (p<0.001). INTERPRETATION Clinical mirror movements correlate with disability and corticospinal organization in children with unilateral CP with perinatal stroke. This simple bedside biomarker could facilitate patient selection for personalized rehabilitation. WHAT THIS PAPER ADDS Mirror movements are a clinical indicator of corticospinal organization in children with unilateral cerebral palsy with perinatal stroke. Mirroring is strongest in children with ipsilateral corticospinal tract reorganization. The concept of a 'directionality factor' to mirror movements highlights additional, clinically relevant functional correlations.
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Affiliation(s)
- Madison Riddell
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Hsing-Ching Kuo
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Calgary, Alberta, Canada
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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25
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Nemanich ST, Mueller BA, Gillick BT. Neurite orientation dispersion and density imaging quantifies corticospinal tract microstructural organization in children with unilateral cerebral palsy. Hum Brain Mapp 2019; 40:4888-4900. [PMID: 31355991 DOI: 10.1002/hbm.24744] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 12/11/2022] Open
Abstract
Children with unilateral cerebral palsy (UCP) due to early brain injury exhibit disrupted connectivity of corticospinal tracts (CSTs), which can be quantified using diffusion-weighted magnetic resonance imaging (DWI). Diffusion tensor imaging (DTI) is commonly used to quantify white matter organization, however, this model lacks the biological specificity to accurately describe underlying microstructural properties. Newer approaches, such as neurite orientation dispersion and density imaging (NODDI), may provide more biologically accurate information regarding CST microstructure. In this study, we directly compared metrics of CST microstructure using NODDI and DTI models to characterize the microstructural organization of corticospinal pathways. Twenty participants with UCP participating in a neuromodulation/rehabilitation intervention underwent imaging including multi-shell DWI; 10 participants' datasets were adequately completed for neuroimaging analysis. Task fMRI-guided probabilistic tractography from motor cortex to brainstem was performed at baseline and follow-up to reconstruct the CSTs. Diffusion metrics were compared between hemispheres at baseline, and between baseline and follow-up to test for intervention effects. Correlation analyses were used to compare baseline metrics to changes in hand function following the intervention. DTI results showed that mean fractional anisotropy in lesioned and nonlesioned CSTs did not significantly differ, but mean, axial, and radial diffusivity were greater in the lesioned CST. For NODDI, intracellular volume fraction (ICVF) and orientation dispersion index (ODI) were lower in the lesioned CST. Unimanual function was strongly correlated with ICVF, but not FA. NODDI may reveal distinct properties of CST microstructure that are linked to motor function, indicating their potential in characterizing brain structure and development.
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Affiliation(s)
- Samuel T Nemanich
- Division of Physical Therapy, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Bryon A Mueller
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, Minnesota
| | - Bernadette T Gillick
- Division of Physical Therapy, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, Minnesota
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26
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Nemanich ST, Rich TL, Chen CY, Menk J, Rudser K, Chen M, Meekins G, Gillick BT. Influence of Combined Transcranial Direct Current Stimulation and Motor Training on Corticospinal Excitability in Children With Unilateral Cerebral Palsy. Front Hum Neurosci 2019; 13:137. [PMID: 31105541 PMCID: PMC6492624 DOI: 10.3389/fnhum.2019.00137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/08/2019] [Indexed: 11/13/2022] Open
Abstract
Combined non-invasive brain stimulation (NIBS) and rehabilitation interventions have the potential to improve function in children with unilateral cerebral palsy (UCP), however their effects on developing brain function are not well understood. In a proof-of-principle study, we used single-pulse transcranial magnetic stimulation (TMS) to measure changes in corticospinal excitability and relationships to motor performance following a randomized controlled trial consisting of 10 days of combined constraint-induced movement therapy (CIMT) and cathodal transcranial direct current stimulation (tDCS) applied to the contralesional motor cortex. Twenty children and young adults (mean age = 12 years, 9 months, range = 7 years, 7 months, 21 years, 7 months) with UCP participated. TMS testing was performed before, after, and 6 months after the intervention to measure motor evoked potential (MEP) amplitude and cortical silent period (CSP) duration. The association between neurophysiologic and motor outcomes and differences in excitability between hemispheres were examined. Contralesional MEP amplitude decreased as hypothesized in five of five participants receiving active tDCS immediately after and 6 months after the intervention, however no statistically significant differences between intervention groups were noted for MEP amplitude [mean difference = −323.9 μV, 95% CI = (−989, 341), p = 0.34] or CSP duration [mean difference = 3.9 ms, 95% CI = (−7.7, 15.5), p = 0.51]. Changes in corticospinal excitability were not statistically associated with improvements in hand function after the intervention. Across all participants, MEP amplitudes measured in the more-affected hand from both contralesional (mean difference = −474.5 μV) and ipsilesional hemispheres (−624.5 μV) were smaller compared to the less-affected hand. Assessing neurophysiologic changes after tDCS in children with UCP provides an understanding of long-term effects on brain excitability to help determine its potential as a therapeutic intervention. Additional investigation into the neurophysiologic effects of tDCS in larger samples of children with UCP are needed to confirm these findings.
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Affiliation(s)
- Samuel T Nemanich
- Divisions of Physical Therapy and Rehabilitation Science, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Tonya L Rich
- Divisions of Physical Therapy and Rehabilitation Science, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Chao-Ying Chen
- Divisions of Physical Therapy and Rehabilitation Science, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, United States.,Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Jeremiah Menk
- Clinical and Translational Science Institute, Biostatistics, Design, and Analysis Center, University of Minnesota, Minneapolis, MN, United States
| | - Kyle Rudser
- School of Public Health, Division of Biostatistics, University of Minnesota, Minneapolis, MN, United States
| | - Mo Chen
- Non-invasive Neuromodulation Laboratory, University of Minnesota, Minneapolis, MN, United States
| | - Gregg Meekins
- Department of Neurology, University of Minnesota, Minneapolis, MN, United States
| | - Bernadette T Gillick
- Divisions of Physical Therapy and Rehabilitation Science, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, United States
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Hoare BJ, Wallen MA, Thorley MN, Jackman ML, Carey LM, Imms C. Constraint-induced movement therapy in children with unilateral cerebral palsy. Cochrane Database Syst Rev 2019; 4:CD004149. [PMID: 30932166 PMCID: PMC6442500 DOI: 10.1002/14651858.cd004149.pub3] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Unilateral cerebral palsy (CP) is a condition that affects muscle control and function on one side of the body. Children with unilateral CP experience difficulties using their hands together secondary to disturbances that occur in the developing fetal or infant brain. Often, the more affected limb is disregarded. Constraint-induced movement therapy (CIMT) aims to increase use of the more affected upper limb and improve bimanual performance. CIMT is based on two principles: restraining the use of the less affected limb (for example, using a splint, mitt or sling) and intensive therapeutic practice of the more affected limb. OBJECTIVES To evaluate the effect of constraint-induced movement therapy (CIMT) in the treatment of the more affected upper limb in children with unilateral CP. SEARCH METHODS In March 2018 we searched CENTRAL, MEDLINE, Embase, CINAHL, PEDro, OTseeker, five other databases and three trials registers. We also ran citation searches, checked reference lists, contacted experts, handsearched key journals and searched using Google Scholar. SELECTION CRITERIA Randomised controlled trials (RCTs), cluster-RCTs or clinically controlled trials implemented with children with unilateral CP, aged between 0 and 19 years, where CIMT was compared with a different form of CIMT, or a low dose, high-dose or dose-matched alternative form of upper-limb intervention such as bimanual intervention. Primarily, outcomes were bimanual performance, unimanual capacity and manual ability. Secondary outcomes included measures of self-care, body function, participation and quality of life. DATA COLLECTION AND ANALYSIS Two review authors independently screened titles and abstracts to eliminate ineligible studies. Five review authors were paired to extract data and assess risk of bias in each included study. GRADE assessments were undertaken by two review authors. MAIN RESULTS We included 36 trials (1264 participants), published between 2004 and 2018. Sample sizes ranged from 11 to 105 (mean 35). Mean age was 5.96 years (standard deviation (SD) 1.82), range three months to 19.8 years; 53% male and 47% participants had left hemiplegia. Fifty-seven outcome measures were used across studies. Average length of CIMT programs was four weeks (range one to 10 weeks). Frequency of sessions ranged from twice weekly to seven days per week. Duration of intervention sessions ranged from 0.5 to eight hours per day. The mean total number of hours of CIMT provided was 137 hours (range 20 to 504 hours). The most common constraint devices were a mitt/glove or a sling (11 studies each).We judged the risk of bias as moderate to high across the studies. KEY RESULTS Primary outcomes at primary endpoint (immediately after intervention)CIMT versus low-dose comparison (e.g. occupational therapy)We found low-quality evidence that CIMT was more effective than a low-dose comparison for improving bimanual performance (mean difference (MD) 5.44 Assisting Hand Assessment (AHA) units, 95% confidence interval (CI) 2.37 to 8.51).CIMT was more effective than a low-dose comparison for improving unimanual capacity (Quality of upper extremity skills test (QUEST) - Dissociated movement MD 5.95, 95% CI 2.02 to 9.87; Grasps; MD 7.57, 95% CI 2.10 to 13.05; Weight bearing MD 5.92, 95% CI 2.21 to 9.6; Protective extension MD 12.54, 95% CI 8.60 to 16.47). Three studies reported adverse events, including frustration, constraint refusal and reversible skin irritations from casting.CIMT versus high-dose comparison (e.g. individualised occupational therapy, bimanual therapy)When compared with a high-dose comparison, CIMT was not more effective for improving bimanual performance (MD -0.39 AHA Units, 95% CI -3.14 to 2.36). There was no evidence that CIMT was more effective than a high-dose comparison for improving unimanual capacity in a single study using QUEST (Dissociated movement MD 0.49, 95% CI -10.71 to 11.69; Grasp MD -0.20, 95% CI -11.84 to 11.44). Two studies reported that some children experienced frustration participating in CIMT.CIMT versus dose-matched comparison (e.g. Hand Arm Bimanual Intensive Therapy, bimanual therapy, occupational therapy)There was no evidence of differences in bimanual performance between groups receiving CIMT or a dose-matched comparison (MD 0.80 AHA units, 95% CI -0.78 to 2.38).There was no evidence that CIMT was more effective than a dose-matched comparison for improving unimanual capacity (Box and Blocks Test MD 1.11, 95% CI -0.06 to 2.28; Melbourne Assessment MD 1.48, 95% CI -0.49 to 3.44; QUEST Dissociated movement MD 6.51, 95% CI -0.74 to 13.76; Grasp, MD 6.63, 95% CI -2.38 to 15.65; Weightbearing MD -2.31, 95% CI -8.02 to 3.40) except for the Protective extension domain (MD 6.86, 95% CI 0.14 to 13.58).There was no evidence of differences in manual ability between groups receiving CIMT or a dose-matched comparison (ABILHAND-Kids MD 0.74, 95% CI 0.31 to 1.18). From 15 studies, two children did not tolerate CIMT and three experienced difficulty. AUTHORS' CONCLUSIONS The quality of evidence for all conclusions was low to very low. For children with unilateral CP, there was some evidence that CIMT resulted in improved bimanual performance and unimanual capacity when compared to a low-dose comparison, but not when compared to a high-dose or dose-matched comparison. Based on the evidence available, CIMT appears to be safe for children with CP.
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Affiliation(s)
- Brian J Hoare
- Monash Children's HospitalVictorian Paediatric Rehabilitation Service246 Clayton RdClaytonVictoriaAustralia3168
| | - Margaret A Wallen
- Australian Catholic UniversitySchool of Allied Health, Faculty of Health SciencesNorth SydneyAustralia
| | - Megan N Thorley
- Royal Children's HospitalRehabilitationHerston RoadBrisbaneQueenslandAustralia4006
| | - Michelle L Jackman
- John Hunter Children's HospitalPaediatric Occupational TherapyLambton RoadNew LambtonNew South WalesAustralia2310
| | - Leeanne M Carey
- Florey Institute of Neuroscience and Mental Health, The University of MelbourneNeurorehabilitation and Recovery, Stroke DivisionMelbourneVictoriaAustralia3081
| | - Christine Imms
- Australian Catholic UniversityCentre for Disability & Development ResearchLevel 2, Daniel Mannix Building17 Young StreetMelbourneVictoriaAustralia3065
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Adler C, Hessenauer M, Lipp J, Kunze S, Geigenberger C, Hörning A, Schaudeck M, Berweck S, Staudt M. Learning to cope with mirror movements in unilateral spastic cerebral palsy: a brief report. Dev Neurorehabil 2019; 22:141-146. [PMID: 29787338 DOI: 10.1080/17518423.2018.1474501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
PURPOSE Mirror movements (MM) in unilateral spastic cerebral palsy (USCP) interfere with many bimanual activities of daily living. METHODS Here, we developed a specific bimanual therapeutic regimen, focusing on asymmetric simultaneous movements of the two hands. Twelve children (6-17 years old; complete data available in ten children) with USCP and MM were included. RESULTS After three weeks of inpatient rehabilitation, we observed significant improvements for two self-defined bimanual goal activities (Goal Attainment Scaling, Canadian Occupational Performance Measure) and for bimanual performance in general (Assisting Hand Assessment). These improvements were still present 6 months later. In contrast, even immediately after therapy, the severity of MM had not changed. CONCLUSIONS Hence, targeted bimanual therapy improved bimanual performance, but did not lead to a reduction of MM. The results of this pilot study might suggest that children with MM benefit more from acquiring strategies to cope with MM than by an active training which aimed to reduce MM.
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Affiliation(s)
- Caroline Adler
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany.,b Public Health Faculty of Medicine Gustav Carl Carus , TU Dresden , Dresden, Germany
| | - Melanie Hessenauer
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany
| | - Johanna Lipp
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany
| | - Silke Kunze
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany
| | - Carina Geigenberger
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany
| | - Andrea Hörning
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany
| | - Martina Schaudeck
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany
| | - Steffen Berweck
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany.,c Dr. von Hauners Children's Hospital , Ludwig-Maximilians-University , Munich , Germany
| | - Martin Staudt
- a Clinic for Neuropediatrics and Neurorehabilitation , Epilepsy Centre for Children and Adolescents , Vogtareuth , Germany.,d Dept. Pediatric Neurology and Developmental Medicine , University Children's Hospital , Tübingen , Germany
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Chamudot R, Parush S, Rigbi A, Gross-Tsur V. Brain Lesions as a Predictor of Therapeutic Outcomes of Hand Function in Infants With Unilateral Cerebral Palsy. J Child Neurol 2018; 33:918-924. [PMID: 30307370 DOI: 10.1177/0883073818801632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIM The present study aimed to investigate whether the response variability of infants to modified constraint-induced movement therapy and bimanual therapy are associated with different types of brain lesions. METHOD Infants with unilateral cerebral palsy (N = 22) ages 8-15 months (mean = 10.95, standard deviation = 2.15 months) were grouped according to having either a periventricular brain lesion or a middle cerebral artery infarct lesion. Improvement in hand function was analyzed based on the mini-Assistive Hand Assessment results. RESULTS Infants with periventricular brain lesion displayed greater positive response to upper limb treatment compared to those with middle cerebral artery infarct ( P = .02). A significant difference in improvement according to type of treatment was found in the middle cerebral artery infarct group but not in the periventricular brain lesion. CONCLUSION The present study showed an association between the type of brain lesion and the efficacy of upper limb treatment in infants. Infants with periventricular brain lesions displayed greater positive responses than those with middle cerebral artery infarct.
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Affiliation(s)
- Rena Chamudot
- 1 School of Occupational Therapy, Faculty of Medicine, Hebrew University of Jerusalem, Israel
| | - Shula Parush
- 1 School of Occupational Therapy, Faculty of Medicine, Hebrew University of Jerusalem, Israel
| | - Amihai Rigbi
- 2 Research Authority and Faculty of Education, Beit Berl Academic College, Kfar-Sava, Israel
| | - Varda Gross-Tsur
- 3 Neuropediatric Unit, Shaare Zedek Medical Center.,4 The Hebrew University School of Medicine, Jerusalem, Israel
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Potentials of Ultrahigh-Field MRI for the Study of Somatosensory Reorganization in Congenital Hemiplegia. Neural Plast 2018; 2018:8472807. [PMID: 30595689 PMCID: PMC6286762 DOI: 10.1155/2018/8472807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/03/2018] [Accepted: 09/04/2018] [Indexed: 12/03/2022] Open
Abstract
Reorganization of somatosensory function influences the clinical recovery of subjects with congenital unilateral brain lesions. Ultrahigh-field (UHF) functional MRI (fMRI) with the use of a 7 T magnet has the potential to contribute fundamentally to the current knowledge of such plasticity mechanisms. The purpose of this study was to obtain preliminary information on the possible advantages of the study of somatosensory reorganization at UHF fMRI. We enrolled 6 young adults (mean age 25 ± 6 years) with congenital unilateral brain lesions (4 in the left hemisphere and 2 in the right hemisphere; 4 with perilesional motor reorganization and 2 with contralesional motor reorganization) and 7 healthy age-matched controls. Nondominant hand sensory assessment included stereognosis and 2-point discrimination. Task-dependent fMRI was performed to elicit a somatosensory activation by using a safe and quantitative device developed ad hoc to deliver a reproducible gentle tactile stimulus to the distal phalanx of thumb and index fingers. Group analysis was performed in the control group. Individual analyses in the native space were performed with data of hemiplegic subjects. The gentle tactile stimulus showed great accuracy in determining somatosensory cortex activation. Single-subject gentle tactile stimulus showed an S1 activation in the postcentral gyrus and an S2 activation in the inferior parietal insular cortex. A correlation emerged between an index of S1 reorganization (distance between expected and reorganized S1) and sensory deficit (p < 0.05) in subjects with hemiplegia, with higher distance related to a more severe sensory deficit. Increase in spatial resolution at 7 T allows a better localization of reorganized tactile function validated by its correlation with clinical measures. Our results support the S1 early-determination hypothesis and support the central role of topography of reorganized S1 compared to a less relevant S1-M1 integration.
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Somatosensory Plasticity in Pediatric Cerebral Palsy following Constraint-Induced Movement Therapy. Neural Plast 2018; 2018:1891978. [PMID: 30532772 PMCID: PMC6250030 DOI: 10.1155/2018/1891978] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 09/16/2018] [Indexed: 01/15/2023] Open
Abstract
Cerebral palsy (CP) is predominantly a disorder of movement, with evidence of sensory-motor dysfunction. CIMT1 is a widely used treatment for hemiplegic CP. However, effects of CIMT on somatosensory processing remain unclear. To examine potential CIMT-induced changes in cortical tactile processing, we designed a prospective study, during which 10 children with hemiplegic CP (5 to 8 years old) underwent an intensive one-week-long nonremovable hard-constraint CIMT. Before and directly after the treatment, we recorded their cortical event-related potential (ERP) responses to calibrated light touch (versus a control stimulus) at the more and less affected hand. To provide insights into the core neurophysiological deficits in light touch processing in CP as well as into the plasticity of this function following CIMT, we analyzed the ERPs within an electrical neuroimaging framework. After CIMT, brain areas governing the more affected hand responded to touch in configurations similar to those activated by the hemisphere controlling the less affected hand before CIMT. This was in contrast to the affected hand where configurations resembled those of the more affected hand before CIMT. Furthermore, dysfunctional patterns of brain activity, identified using hierarchical ERP cluster analyses, appeared reduced after CIMT in proportion with changes in sensory-motor measures (grip or pinch movements). These novel results suggest recovery of functional sensory activation as one possible mechanism underlying the effectiveness of intensive constraint-based therapy on motor functions in the more affected upper extremity in CP. However, maladaptive effects on the less affected constrained extremity may also have occurred. Our findings also highlight the use of electrical neuroimaging as feasible methodology to measure changes in tactile function after treatment even in young children, as it does not require active participation.
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Kuo HC, Zewdie E, Ciechanski P, Damji O, Kirton A. Intervention-Induced Motor Cortex Plasticity in Hemiparetic Children With Perinatal Stroke. Neurorehabil Neural Repair 2018; 32:941-952. [DOI: 10.1177/1545968318801546] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hsing-Ching Kuo
- Alberta Children’s Hospital, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada
- University of Calgary, Calgary, Alberta, Canada
| | - Ephrem Zewdie
- Alberta Children’s Hospital, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada
- University of Calgary, Calgary, Alberta, Canada
| | - Patrick Ciechanski
- Alberta Children’s Hospital, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada
| | - Omar Damji
- Alberta Children’s Hospital, Calgary, Alberta, Canada
| | - Adam Kirton
- Alberta Children’s Hospital, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada
- University of Calgary, Calgary, Alberta, Canada
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Jung NH, Münchau A, Mall V. [Neuronal plasticity and neuromodulation in pediatric neurology]. DER NERVENARZT 2018; 89:1131-1139. [PMID: 30141068 DOI: 10.1007/s00115-018-0586-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Neuronal plasticity is a core mechanism for learning and memory. Abnormal neuronal plasticity has emerged as a key mechanism in many neurological and neuropediatric diseases. OBJECTIVE Chances and perspectives of neuromodulation techniques in neurological and neuropediatric diseases with altered neuronal plasticity. MATERIAL AND METHODS Presentation and discussion of own results of neuronal plasticity investigations in patients with neurodevelopmental disorders including RASopathies, autism spectrum disorders (ASD) and Gilles de la Tourette syndrome (GTS). RESULTS The results of neuronal plasticity studies in patients with RASopathies, ASD and GTS underline the pathophysiological relevance of abnormal neuronal plasticity in these diseases. Transcranial magnetic stimulation (TMS) is a useful tool to examine and also induce neuronal plasticity in these patients. CONCLUSION Neuronal plasticity appears to be an important pathophysiological factor in neuronal developmental disorders and can be investigated using TMS. New and innovative techniques may offer novel approaches for individualized TMS applications, particularly in children with neuropediatric conditions.
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Affiliation(s)
- N H Jung
- Fakultät für Medizin, Lehrstuhl für Sozialpädiatrie, Technische Universität München, Heiglhoftstr. 65, 81377, München, Deutschland.
| | - A Münchau
- Institut für Neurogenetik, Universität zu Lübeck, Marie-Curie-Straße, 23562, Lübeck, Deutschland
| | - V Mall
- Fakultät für Medizin, Lehrstuhl für Sozialpädiatrie, Technische Universität München, Heiglhoftstr. 65, 81377, München, Deutschland
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Simon-Martinez C, Mailleux L, Ortibus E, Fehrenbach A, Sgandurra G, Cioni G, Desloovere K, Wenderoth N, Demaerel P, Sunaert S, Molenaers G, Feys H, Klingels K. Combining constraint-induced movement therapy and action-observation training in children with unilateral cerebral palsy: a randomized controlled trial. BMC Pediatr 2018; 18:250. [PMID: 30064396 PMCID: PMC6069849 DOI: 10.1186/s12887-018-1228-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 07/19/2018] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Upper limb (UL) deficits in children with unilateral cerebral palsy (uCP) have traditionally been targeted with motor execution treatment models, such as modified Constraint-Induced Movement Therapy (mCIMT). However, new approaches based on a neurophysiological model such as Action-Observation Training (AOT) may provide new opportunities for enhanced motor learning. The aim of this study is to describe a randomised controlled trial (RCT) protocol investigating the effects of an intensive treatment model, combining mCIMT and AOT compared to mCIMT alone on UL function in children with uCP. Additionally, the role of neurological factors as potential biomarkers of treatment response will be analysed. METHODS An evaluator-blinded RCT will be conducted in 42 children aged between 6 and 12 years. Before randomization, children will be stratified according to their House Functional Classification Scale, age and type of corticospinal tract wiring. A 2-week day-camp will be set up in which children receive intensive mCIMT therapy for 6 hours a day on 9 out of 11 consecutive days (54 h) including AOT or control condition (15 h). During AOT, these children watch video sequences showing goal-directed actions and subsequently execute the observed actions with the more impaired UL. The control group performs the same actions after watching computer games without human motion. The primary outcome measure will be the Assisting Hand Assessment. Secondary outcomes comprise clinical assessments across body function, activity and participation level of the International Classification of Function, Disability and Health. Furthermore, to quantitatively evaluate UL movement patterns, a three-dimensional motion analysis will be conducted. UL function will be assessed at baseline, immediately before and after intervention and at 6 months follow up. Brain imaging comprising structural and functional connectivity measures as well as Transcranial Magnetic Stimulation (TMS) to evaluate corticospinal tract wiring will be acquired before the intervention. DISCUSSION This paper describes the methodology of an RCT with two main objectives: (1) to evaluate the added value of AOT to mCIMT on UL outcome in children with uCP and (2) to investigate the role of neurological factors as potential biomarkers of treatment response. TRIAL REGISTRATION NCT03256357 registered on 21st August 2017 (retrospectively registered).
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Affiliation(s)
| | - Lisa Mailleux
- Department of Rehabilitation Sciences, KU Leuven - University of Leuven, Leuven, Belgium
| | - Els Ortibus
- Department of Development and Regeneration, KU Leuven - University of Leuven, Leuven, Belgium
| | - Anna Fehrenbach
- Department of Rehabilitation Sciences, KU Leuven - University of Leuven, Leuven, Belgium
| | - Giuseppina Sgandurra
- Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Calambrone, Italy
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Giovanni Cioni
- Department of Developmental Neuroscience, IRCCS Fondazione Stella Maris, Calambrone, Italy
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Kaat Desloovere
- Department of Rehabilitation Sciences, KU Leuven - University of Leuven, Leuven, Belgium
- Clinical Motion Analysis Laboratory, University Hospitals Leuven, Pellenberg, Belgium
| | - Nicole Wenderoth
- Neural Control of Movement Lab, Department of Health Sciences and Technology, ETH, Zurich, Switzerland
| | - Philippe Demaerel
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Stefan Sunaert
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Guy Molenaers
- Department of Development and Regeneration, KU Leuven - University of Leuven, Leuven, Belgium
| | - Hilde Feys
- Department of Rehabilitation Sciences, KU Leuven - University of Leuven, Leuven, Belgium
| | - Katrijn Klingels
- Department of Rehabilitation Sciences, KU Leuven - University of Leuven, Leuven, Belgium
- Rehabilitation Research Centre, BIOMED, Hasselt University, Diepenbeek, Belgium
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Gillick B, Rich T, Nemanich S, Chen CY, Menk J, Mueller B, Chen M, Ward M, Meekins G, Feyma T, Krach L, Rudser K. Transcranial direct current stimulation and constraint-induced therapy in cerebral palsy: A randomized, blinded, sham-controlled clinical trial. Eur J Paediatr Neurol 2018; 22:358-368. [PMID: 29456128 PMCID: PMC5899638 DOI: 10.1016/j.ejpn.2018.02.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/22/2018] [Accepted: 02/01/2018] [Indexed: 12/16/2022]
Abstract
We investigated the safety, feasibility, and efficacy of transcranial direct current stimulation (tDCS) combined with constraint-induced movement therapy (CIMT) in children and young adults with unilateral cerebral palsy. Twenty participants were randomized to receive active or sham tDCS. The intervention consisted of 10 consecutive weekday sessions of tDCS applied to the non-lesioned hemisphere (20 min) concurrently with CIMT (120 min). Participants, caregivers, and interventionists were blinded to group assignment. The primary safety outcome investigated adverse events. The primary behavioral outcome was the Assisting Hand Assessment. All 20 participants (mean age = 12.7 yrs, range = 7.4-21.6 years) were evaluated for the primary outcomes. No serious adverse events occurred, and the most commonly reported minor adverse events were headache and itchiness. Both groups demonstrated a significant improvement in hand function after the intervention, although no significant effect of tDCS was observed (between-group difference = -2.18, 95% CI = [-6.48, 2.12], p = 0.30). Although hand function improved overall, no significant differences between intervention groups were found. Children with preserved corticospinal tract circuitry from the lesioned hemisphere, compared to those without, showed greater improvement in hand function (mean difference = 3.04, 95% CI = [-0.64, 6.72], p = 0.099). Our study demonstrates the safety and feasibility of serial sessions of tDCS, and presents preliminary evidence for the effect of CST circuitry on outcomes following tDCS/CIMT. Future work in children with unilateral cerebral palsy should focus on the optimal dosing and consider individual brain circuitry when describing response to combined interventions. CLINICAL TRIALS REGISTRATION Clinicaltrials.govNCT 02250092.
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Affiliation(s)
- Bernadette Gillick
- Department of Rehabilitation Medicine, University of Minnesota, 420 Delaware St SE, MMC 388, Minneapolis, MN, 55455, USA.
| | - Tonya Rich
- Department of Rehabilitation Medicine, University of Minnesota, 420 Delaware St SE, MMC 388, Minneapolis, MN, 55455, USA
| | - Samuel Nemanich
- Department of Rehabilitation Medicine, University of Minnesota, 420 Delaware St SE, MMC 388, Minneapolis, MN, 55455, USA
| | - Chao-Ying Chen
- Department of Rehabilitation Medicine, University of Minnesota, 420 Delaware St SE, MMC 388, Minneapolis, MN, 55455, USA
| | - Jeremiah Menk
- School of Public Health, Division of Biostatistics, University of Minnesota, 420 Delaware St SE, MMC 303, Minneapolis, MN, 55455, USA
| | - Bryon Mueller
- Department of Psychiatry, University of Minnesota, 2450 Riverside Ave. S, Minneapolis, MN, 55454, USA
| | - Mo Chen
- Institute for Engineering and Medicine, University of Minnesota, 420 Delaware St. SE, MMC 609, Minneapolis, MN, 55455, USA
| | - Marcie Ward
- Gillette Children's Specialty Healthcare, 200 East University Ave., St. Paul, MN, 55101, USA
| | - Gregg Meekins
- Department of Neurology, University of Minnesota, 420 Delaware St SE, MMC 295, Minneapolis, MN, 55455, USA
| | - Tim Feyma
- Gillette Children's Specialty Healthcare, 200 East University Ave., St. Paul, MN, 55101, USA
| | - Linda Krach
- Courage Kenny Rehabilitation Institute, 800 East 28th St., Minneapolis, MN, 55407, USA
| | - Kyle Rudser
- School of Public Health, Division of Biostatistics, University of Minnesota, 420 Delaware St SE, MMC 303, Minneapolis, MN, 55455, USA
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Gillick BT, Gordon AM, Feyma T, Krach LE, Carmel J, Rich TL, Bleyenheuft Y, Friel K. Non-Invasive Brain Stimulation in Children With Unilateral Cerebral Palsy: A Protocol and Risk Mitigation Guide. Front Pediatr 2018; 6:56. [PMID: 29616203 PMCID: PMC5864860 DOI: 10.3389/fped.2018.00056] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 02/26/2018] [Indexed: 01/04/2023] Open
Abstract
Non-invasive brain stimulation has been increasingly investigated, mainly in adults, with the aims of influencing motor recovery after stroke. However, a consensus on safety and optimal study design has not been established in pediatrics. The low incidence of reported major adverse events in adults with and without clinical conditions has expedited the exploration of NIBS in children with paralleled purposes to influence motor skill development after neurological injury. Considering developmental variability in children, with or without a neurologic diagnosis, adult dosing and protocols may not be appropriate. The purpose of this paper is to present recommendations and tools for the prevention and mitigation of adverse events (AEs) during NIBS in children with unilateral cerebral palsy (UCP). Our recommendations provide a framework for pediatric NIBS study design. The key components of this report on NIBS AEs are (a) a summary of related literature to provide the background evidence and (b) tools for anticipating and managing AEs from four international pediatric laboratories. These recommendations provide a preliminary guide for the assessment of safety and risk mitigation of NIBS in children with UCP. Consistent reporting of safety, feasibility, and tolerability will refine NIBS practice guidelines contributing to future clinical translations of NIBS.
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Affiliation(s)
- Bernadette T Gillick
- Physical Therapy Division, Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, United States
| | - Andrew M Gordon
- Department of Biobehavioral Sciences, Teachers College, Columbia University, New York, NY, United States
| | - Tim Feyma
- Gillette Children's Specialty Healthcare, Pediatric Neurology, St. Paul, MN, United States
| | - Linda E Krach
- Courage Kenny Rehabilitation Institute, Minneapolis, MN, United States
| | - Jason Carmel
- Weill-Cornell Medical College, Blythedale Children's Hospital, Burke Medical Research Institute, White Plains, NY, United States
| | - Tonya L Rich
- Rehabilitation Science, University of Minnesota, Minneapolis, MN, United States
| | - Yannick Bleyenheuft
- Institute of Neuroscience (IoNS), Universite catholique de Louvain, Brussels, Belgium
| | - Kathleen Friel
- Weill-Cornell Medical College, Blythedale Children's Hospital, Burke Medical Research Institute, White Plains, NY, United States
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Abstract
PURPOSE OF REVIEW To demonstrate how neurophysiological tools have advanced our understanding of the pathophysiology of paediatric movement disorders, and of neuroplasticity in the developing brain. RECENT FINDINGS Delineation of corticospinal tract connectivity using transcranial magnetic stimulation (TMS) is being investigated as a potential biomarker for response to therapy. TMS measures of cortical excitability and neuroplasticity are also being used to investigate the effects of therapy, demonstrating neuroplastic changes that relate to functional improvements. Analyses of evoked potentials and event-related changes in the electroencephalogaphy spectral activity provide growing evidence for the important role of aberrant sensory processing in the pathophysiology of many different movement disorders. Neurophysiological findings demonstrate that children with clinically similar phenotypes may have differing underlying pathophysiology, which in turn may explain differential response to therapy. Neurophysiological parameters can act as biomarkers, providing a means to stratify individuals, and are well suited to provide biofeedback. They therefore have enormous potential to facilitate improvements to therapy. SUMMARY Although currently a small field, the role of neurophysiology in paediatric movement disorders is poised to expand, both fuelled by and contributing to the rapidly growing fields of neuro-rehabilitation and neuromodulation and the move towards a more individualized therapeutic approach.
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Rich TL, Menk JS, Rudser KD, Feyma T, Gillick BT. Less-Affected Hand Function in Children With Hemiparetic Unilateral Cerebral Palsy: A Comparison Study With Typically Developing Peers. Neurorehabil Neural Repair 2017; 31:965-976. [PMID: 29130382 DOI: 10.1177/1545968317739997] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Neurorehabilitation interventions in children with unilateral cerebral palsy (UCP) target motor abilities in daily life yet deficits in hand skills persist. Limitations in the less-affected hand may affect overall bimanual hand skills. OBJECTIVE To compare hand function, by timed motor performance on the Jebsen-Taylor Test of Hand Function (JTTHF) and grip strength of children with UCP to children with typical development (CTD), aged 8 to 18 years old. Exploratory analyses compared hand function measures with regard to neurophysiological outcomes measured by transcranial magnetic stimulation and between group comparisons of hemispheric motor threshold. METHODS Baseline hand skills were evaluated in 47 children (21 UCP; 26 CTD). Single-pulse transcranial magnetic stimulation testing assessed corticospinal tract and motor threshold. RESULTS The mean difference of the less-affected hand of children with UCP to the dominant hand of CTD on the JTTHF was 21.4 seconds (95% CI = 9.32-33.46, P = .001). The mean difference in grip strength was -30.8 N (95% CI = -61.9 to 0.31, P = .052). Resting motor thresholds between groups were not significant, but age was significantly associated with resting motor threshold ( P < .001; P = .001). Children with UCP ipsilateral pattern of motor representation demonstrated greater mean differences between hands than children with contralateral pattern of motor representation ( P < .001). All results were adjusted for age and sex. CONCLUSIONS The less-affected hand in children with UCP underperformed the dominant hand of CTD. Limitations were greater in children with UCP ipsilateral motor pattern. Rehabilitation in the less-affected hand may be warranted. Bilateral hand function in future studies may help identify the optimal rehabilitation and neuromodulatory intervention.
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Affiliation(s)
| | | | | | - Timothy Feyma
- 2 Gillette Children's Specialty Healthcare, St Paul, MN, USA
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Rich TL, Menk JS, Rudser KD, Chen M, Meekins GD, Peña E, Feyma T, Bawroski K, Bush C, Gillick BT. Determining Electrode Placement for Transcranial Direct Current Stimulation: A Comparison of EEG- Versus TMS-Guided Methods. Clin EEG Neurosci 2017; 48:367-375. [PMID: 28530154 PMCID: PMC5933436 DOI: 10.1177/1550059417709177] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Transcranial direct current stimulation (tDCS) is increasingly researched as an adjuvant to motor rehabilitation for children with hemiparesis. The optimal method for the primary motor cortex (M1) somatotopic localization for tDCS electrode placement has not been established. The objective, therefore, was to determine the location of the M1 derived using the 10/20 electroencephalography (EEG) system and transcranial magnetic stimulation (TMS) in children with hemiparesis (CWH) and a comparison group of typically developing children (TDC). We hypothesized a difference in location for CWH but not for TDC. The 2 locations were evaluated in 47 children (21 CWH, 26 TDC). Distances between the locations were measured pending presence of a motor evoked potential. Distances between the EEG and TMS locations that exceeded the 2.5 cm × 2.5 cm rubber electrode area are reported in percentages [95% confidence interval] in CWH-nonlesioned hemisphere was 68.8% [41.3-89.0], lesioned: 85.7% [57.2-98.2]; TDC-dominant hemisphere 73.9% [51.6-89.8], nondominant: 82.6% [61.2-95.0]. Distances that exceeded the 3 × 5 cm electrode sponge area in CWH-nonlesioned was 25.0% [7.3-52.4], lesioned was 28.6% [8.4-58.1]; TDC-dominant was 52.2% [30.6-73.2], nondominant was 43.5 [23.2-65.5]). Distances that exceeded the 5 × 7 cm electrode sponge area in CWH-nonlesioned was 18.8% [4.0-45.6] and lesioned was 21.4% [4.7-50.8]; TDC-dominant was 21.7% [7.5-43.7] and nondominant was 26.1% [10.2-48.4]. Individual variability in brain somatotopic organization may influence surface scalp localization of underlying M1 in children regardless of neurologic impairment. Findings suggest further investigation of optimal tDCS electrode placement. EEG and TMS methods reveal variability in localizing M1 in children regardless of stroke diagnosis. This study was registered on clinicaltrials.gov NCT02015338.
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Affiliation(s)
- Tonya L. Rich
- Department of Physical Medicine and Rehabilitation, Program in Rehabilitation Science, University of Minnesota, Minneapolis, MN, USA
| | - Jeremiah S. Menk
- Biostatistical Design and Analysis Center, Clinical and Translational Science Institute, University of Minnesota, Minneapolis, MN, USA
| | - Kyle D. Rudser
- Biostatistical Design and Analysis Center, Clinical and Translational Science Institute, University of Minnesota, Minneapolis, MN, USA
| | - Mo Chen
- Non-Invasive Neuromodulation Laboratory, Institute for Engineering in Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Gregg D. Meekins
- Department of Neurology, University of Minnesota, Medical School, Minneapolis, MN, USA
| | - Edgar Peña
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Timothy Feyma
- Gillette Children’s Specialty Healthcare, St Paul, MN, USA
| | - Kay Bawroski
- Gillette Children’s Specialty Healthcare, St Paul, MN, USA
| | - Christina Bush
- Gillette Children’s Specialty Healthcare, St Paul, MN, USA
| | - Bernadette T. Gillick
- Department of Physical Medicine and Rehabilitation, Program in Rehabilitation Science, University of Minnesota, Minneapolis, MN, USA
- Department of Physical Medicine and Rehabilitation, Program in Physical Therapy, University of Minnesota, Minneapolis, MN, USA
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Gordon AM. Impaired Voluntary Movement Control and Its Rehabilitation in Cerebral Palsy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 957:291-311. [PMID: 28035572 DOI: 10.1007/978-3-319-47313-0_16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Cerebral palsy is caused by early damage to the developing brain, as the most common pediatric neurological disorder. Hemiplegia (unilateral spastic cerebral palsy) is the most common subtype, and the resulting impairments, lateralized to one body side, especially affect the upper extremity, limiting daily function. This chapter first describes the pathophysiology and mechanisms underlying impaired upper extremity control of cerebral palsy. It will be shown that the severity of impaired hand function closely relates to the integrity of the corticospinal tract innervating the affected hand. It will also shown that the developing corticospinal tract can reorganize its connectivity depending on the timing and location of CNS injury, which also has implications for the severity of hand impairments and rehabilitation. The mechanisms underlying impaired motor function will be highlighted, including deficits in movement execution and planning and sensorimotor integration. It will be shown that despite having unimanual hand impairments, bimanual movement control deficits and mirror movements also impact function. Evidence for motor learning-based therapies including Constraint-Induced Movement Therapy and Bimanual Training, and the possible pathophysiological predictors of treatment outcome and plasticity will be described. Finally, future directions for rehabilitations will be presented.
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Affiliation(s)
- Andrew M Gordon
- Department of Biobehavioral Sciences, Teachers College, Columbia University, 525 West 120th Street, New York, New York, Box 93, 10027, USA.
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Lin YL, Potter-Baker KA. Using theoretical models from adult stroke recovery to improve use of noninvasive brain stimulation for children with congenital hemiparesis. J Neurophysiol 2017; 118:1435-1438. [PMID: 28539399 DOI: 10.1152/jn.00258.2017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 05/23/2017] [Accepted: 05/23/2017] [Indexed: 11/22/2022] Open
Abstract
Noninvasive brain stimulation has been widely used for adults with stroke to improve upper limb motor function. A recent study by Kirton and colleagues (Kirton A, Ciechanski P, Zewdie E, Andersen J, Nettel-Aguirre A, Carlson H, Carsolio L, Herrero M, Quigley J, Mineyko A, Hodge J, Hill M. Neurology 88: 259-267, 2017) applied noninvasive brain stimulation to children with congenital hemiparesis but found no significant effect of noninvasive brain stimulation on motor function. Here, we explore theories about cortical reorganization in both adult and children with hemiparesis and discuss how to improve the approaches of noninvasive brain stimulation to generate optimal motor improvement and development for children with congenital hemiparesis.
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Affiliation(s)
- Yin-Liang Lin
- Department of Biomedical Engineering, Cleveland Clinic Foundation, Cleveland, Ohio
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Gerstl L, Heinen F, Borggraefe I, Olivieri M, Kurnik K, Nicolai T, Reiter K, Berweck S, Schröder AS. Pädiatrischer Schlaganfall – ein kinderneurologischer Notfall. Monatsschr Kinderheilkd 2017. [DOI: 10.1007/s00112-016-0119-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dlamini N, Wintermark M, Fullerton H, Strother S, Lee W, Bjornson B, Guilliams KP, Miller S, Kirton A, Filippi CG, Linds A, Askalan R, deVeber G. Harnessing Neuroimaging Capability in Pediatric Stroke: Proceedings of the Stroke Imaging Laboratory for Children Workshop. Pediatr Neurol 2017; 69:3-10. [PMID: 28259513 DOI: 10.1016/j.pediatrneurol.2017.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 12/22/2022]
Abstract
On June 5, 2015 the International Pediatric Stroke Study and the Stroke Imaging Laboratory for Children cohosted a unique workshop focused on developing neuroimaging research in pediatric stroke. Pediatric neurologists, neuroradiologists, interventional neuroradiologists, physicists, nurse practitioners, neuropsychologists, and imaging research scientists from around the world attended this one-day meeting. Our objectives were to (1) establish a group of experts to collaborate in advancing pediatric neuroimaging for stroke, (2) develop consensus clinical and research magnetic resonance imaging protocols for pediatric stroke patients, and (3) develop imaging-based research strategies in pediatric ischemic stroke. This article provides a summary of the meeting proceedings focusing on identified challenges and solutions and outcomes from the meeting. Further details on the workshop contents and outcomes are provided in three additional articles in the current issue of Pediatric Neurology.
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Affiliation(s)
- Nomazulu Dlamini
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.
| | - Max Wintermark
- Division of Neuroradiology, Department of Radiology, Stanford University, Stanford, California
| | - Heather Fullerton
- Department of Neurology, University of California, San Francisco, San Francisco, California; Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Stephen Strother
- Department of Medical Biophysics, Rotman Research Institute at Baycrest, University of Toronto, Toronto, Ontario, Canada
| | - Wayne Lee
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Bruce Bjornson
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada; Developmental Neurosciences and Child Health, Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - Kristin P Guilliams
- Division of Pediatric Neurology, Department of Neurology, Washington University in St. Louis, St. Louis, Missouri; Division of Critical Care Medicine, Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri
| | - Steven Miller
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Adam Kirton
- Department of Pediatrics, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Clinical Neurosciences, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Christopher G Filippi
- Department of Radiology, Northwell Health, Manhasset, New York; Department of Neurology, University of Vermont Medical Center, Burlington, Vermont
| | - Alexandra Linds
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Rand Askalan
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Gabrielle deVeber
- Division of Neurology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
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Carlson HL, MacMaster FP, Harris AD, Kirton A. Spectroscopic biomarkers of motor cortex developmental plasticity in hemiparetic children after perinatal stroke. Hum Brain Mapp 2017; 38:1574-1587. [PMID: 27859933 PMCID: PMC6866903 DOI: 10.1002/hbm.23472] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 10/20/2016] [Accepted: 11/07/2016] [Indexed: 01/26/2023] Open
Abstract
Perinatal stroke causes hemiparetic cerebral palsy and lifelong motor disability. Bilateral motor cortices are key hubs within the motor network and their neurophysiology determines clinical function. Establishing biomarkers of motor cortex function is imperative for developing and evaluating restorative interventional strategies. Proton magnetic resonance spectroscopy (MRS) quantifies metabolite concentrations indicative of underlying neuronal health and metabolism in vivo. We used functional magnetic resonance imaging (MRI)-guided MRS to investigate motor cortex metabolism in children with perinatal stroke. Children aged 6-18 years with MRI-confirmed perinatal stroke and hemiparetic cerebral palsy were recruited from a population-based cohort. Metabolite concentrations were assessed using a PRESS sequence (3T, TE = 30 ms, voxel = 4 cc). Voxel location was guided by functional MRI activations during finger tapping tasks. Spectra were analysed using LCModel. Metabolites were quantified, cerebral spinal fluid corrected and compared between groups (ANCOVA) controlling for age. Associations with clinical motor performance (Assisting Hand, Melbourne, Box-and-Blocks) were assessed. Fifty-two participants were studied (19 arterial, 14 venous, 19 control). Stroke participants demonstrated differences between lesioned and nonlesioned motor cortex N-acetyl-aspartate [NAA mean concentration = 10.8 ± 1.9 vs. 12.0 ± 1.2, P < 0.01], creatine [Cre 8.0 ± 0.9 vs. 7.4 ± 0.9, P < 0.05] and myo-Inositol [Ins 6.5 ± 0.84 vs. 5.8 ± 1.1, P < 0.01]. Lesioned motor cortex NAA and creatine were strongly correlated with motor performance in children with arterial but not venous strokes. Interrogation of motor cortex by fMRI-guided MRS is feasible in children with perinatal stroke. Metabolite differences between hemispheres, stroke types and correlations with motor performance support functional relevance. MRS may be valuable in understanding the neurophysiology of developmental neuroplasticity in cerebral palsy. Hum Brain Mapp 38:1574-1587, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Helen L. Carlson
- Calgary Pediatric Stroke ProgramAlberta Children's HospitalCalgaryABCanada
- Alberta Children's Hospital Research Institute (ACHRI)ABCanadaCalgary
- NeurosciencesAlberta Children's HospitalCalgaryABCanada
- Department of PediatricsUniversity of CalgaryCalgaryABCanada
| | - Frank P. MacMaster
- Alberta Children's Hospital Research Institute (ACHRI)ABCanadaCalgary
- Department of PediatricsUniversity of CalgaryCalgaryABCanada
- Hotchkiss Brain Institute, University of CalgaryCalgaryABCanada
- Department of PsychiatryUniversity of CalgaryABCanada
- The Mathison Centre for Mental Health Research and Education, University of CalgaryCalgaryABCanada
- Child and Adolescent Imaging Research (CAIR) Programs, Alberta Children's HospitalCalgaryABCanada
- Strategic Clinical Network for Addictions and Mental HealthAlberta Health ServicesCalgaryABCanada
| | - Ashley D. Harris
- Alberta Children's Hospital Research Institute (ACHRI)ABCanadaCalgary
- Hotchkiss Brain Institute, University of CalgaryCalgaryABCanada
- Child and Adolescent Imaging Research (CAIR) Programs, Alberta Children's HospitalCalgaryABCanada
- Department of RadiologyUniversity of CalgaryCalgaryABCanada
| | - Adam Kirton
- Calgary Pediatric Stroke ProgramAlberta Children's HospitalCalgaryABCanada
- Alberta Children's Hospital Research Institute (ACHRI)ABCanadaCalgary
- NeurosciencesAlberta Children's HospitalCalgaryABCanada
- Department of PediatricsUniversity of CalgaryCalgaryABCanada
- Hotchkiss Brain Institute, University of CalgaryCalgaryABCanada
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Kirton A. Advancing non-invasive neuromodulation clinical trials in children: Lessons from perinatal stroke. Eur J Paediatr Neurol 2017; 21:75-103. [PMID: 27470654 DOI: 10.1016/j.ejpn.2016.07.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 06/21/2016] [Accepted: 07/02/2016] [Indexed: 12/18/2022]
Abstract
Applications of non-invasive brain stimulation including therapeutic neuromodulation are expanding at an alarming rate. Increasingly established scientific principles, including directional modulation of well-informed cortical targets, are advancing clinical trial development. However, high levels of disease burden coupled with zealous enthusiasm may be getting ahead of rational research and evidence. Experience is limited in the developing brain where additional issues must be considered. Properly designed and meticulously executed clinical trials are essential and required to advance and optimize the potential of non-invasive neuromodulation without risking the well-being of children and families. Perinatal stroke causes most hemiplegic cerebral palsy and, as a focal injury of defined timing in an otherwise healthy brain, is an ideal human model of developmental plasticity. Advanced models of how the motor systems of young brains develop following early stroke are affording novel windows of opportunity for neuromodulation clinical trials, possibly directing neuroplasticity toward better outcomes. Reviewing the principles of clinical trial design relevant to neuromodulation and using perinatal stroke as a model, this article reviews the current and future issues of advancing such trials in children.
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Affiliation(s)
- Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, 2888 Shaganappi Trail NW, Calgary, AB T3B6A8, Canada.
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Kirton A, Ciechanski P, Zewdie E, Andersen J, Nettel-Aguirre A, Carlson H, Carsolio L, Herrero M, Quigley J, Mineyko A, Hodge J, Hill M. Transcranial direct current stimulation for children with perinatal stroke and hemiparesis. Neurology 2016; 88:259-267. [DOI: 10.1212/wnl.0000000000003518] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/05/2016] [Indexed: 12/14/2022] Open
Abstract
Objective:To determine whether the addition of transcranial direct current stimulation (tDCS) to intensive therapy increases motor function in children with perinatal stroke and hemiparetic cerebral palsy.Methods:This was a randomized, controlled, double-blind clinical trial. Participants were recruited from a population-based cohort with MRI-classified unilateral perinatal stroke, age of 6 to 18 years, and disabling hemiparesis. All completed a goal-directed, peer-supported, 2-week after-school motor learning camp (32 hours of therapy). Participants were randomized 1:1 to 1 mA cathodal tDCS over the contralesional primary motor cortex (M1) for the initial 20 minutes of daily therapy or sham. Primary subjective (Canadian Occupational Performance Measure [COPM]), objective (Assisting Hand Assessment [AHA]), safety, and secondary outcomes were measured at 1 week and 2 months after intervention. Analysis was by intention to treat.Results:Twenty-four participants were randomized (median age 11.8 ± 2.7 years, range 6.7–17.8). COPM performance and satisfaction scores doubled at 1 week with sustained gains at 2 months (p < 0.001). COPM scores increased more with tDCS compared to sham control (p = 0.004). AHA scores demonstrated only mild increases at both time points with no tDCS effects. Procedures were safe and well tolerated with no decrease in either arm function or serious adverse events.Conclusion:tDCS trials appear feasible and safe in hemiparetic children. Lack of change in objective motor function may reflect underdosing of therapy. Marked gains in subjective function with tDCS warrant further study.ClinicalTrials.gov identifier:NCT02170285.Classification of evidence:This study provides Class II evidence that for children with perinatal stroke and hemiparetic cerebral palsy, the addition of tDCS to moderate-dose motor learning therapy does not significantly improve motor function as measured by the AHA.
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Zewdie E, Damji O, Ciechanski P, Seeger T, Kirton A. Contralesional Corticomotor Neurophysiology in Hemiparetic Children With Perinatal Stroke. Neurorehabil Neural Repair 2016; 31:261-271. [DOI: 10.1177/1545968316680485] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | - Omar Damji
- University of Calgary, Calgary, Alberta, Canada
| | | | | | - Adam Kirton
- University of Calgary, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute, Calgary, Alberta, Canada
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Smorenburg ARP, Gordon AM, Kuo HC, Ferre CL, Brandao M, Bleyenheuft Y, Carmel JB, Friel KM. Does Corticospinal Tract Connectivity Influence the Response to Intensive Bimanual Therapy in Children With Unilateral Cerebral Palsy? Neurorehabil Neural Repair 2016; 31:250-260. [PMID: 27856938 DOI: 10.1177/1545968316675427] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Reorganization of the corticospinal tract (CST) can occur in unilateral spastic cerebral palsy (USCP). The affected hand can be controlled via (1) typical contralateral projections from the lesioned hemisphere, (2) ipsilateral projections from the nonlesioned hemisphere, and (3) a combination of contralateral and ipsilateral projections (ie, bilateral). Intensive bimanual therapy and constraint-induced movement therapy (CIMT) improve hand function of children with USCP. Earlier it was suggested that the CST connectivity pattern may influence the efficacy of CIMT. OBJECTIVE To examine whether CST projection pattern influences the efficacy of intensive bimanual therapy in children with USCP. PARTICIPANTS Thirty-three children with USCP (age 8.9 ± 2.6 years, 16 females). METHODS Bimanual therapy was provided in a day-camp setting (90 hours). Participants were involved in different bimanual play and functional activities actively engaging both hands. Hand function was tested before and after the intervention with the Jebsen-Taylor Test of Hand Function, Assisting Hand Assessment, ABILHAND-Kids, and the Canadian Occupational Performance Measure. Single-pulse transcranial magnetic stimulation (TMS) was used to determine each child's CST projection pattern (ie, ipsilateral, contralateral, or bilateral). RESULTS Children whose affected hand was controlled only by ipsilateral CST projections had worse Jebsen-Taylor Test of Hand Function and Assisting Hand Assessment scores than children in the contralateral group at baseline. Bimanual hand use and functional hand use was independent of CST projection pattern. After bimanual therapy, improvements on all outcome measures were observed, and these improvements were independent of the CST connectivity pattern. CONCLUSION The efficacy of bimanual therapy on hand function in children with USCP appears to be independent of CST connectivity pattern.
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Affiliation(s)
| | | | - Hsing-Ching Kuo
- 1 Burke-Cornell Medical Research Institute, White Plains, NY, USA.,2 Teachers College, Columbia University, New York, NY, USA
| | - Claudio L Ferre
- 1 Burke-Cornell Medical Research Institute, White Plains, NY, USA.,2 Teachers College, Columbia University, New York, NY, USA
| | - Marina Brandao
- 3 Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Jason B Carmel
- 1 Burke-Cornell Medical Research Institute, White Plains, NY, USA.,5 Weill Cornell Medical College, New York, NY, USA
| | - Kathleen M Friel
- 1 Burke-Cornell Medical Research Institute, White Plains, NY, USA.,5 Weill Cornell Medical College, New York, NY, USA
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Rudisch J, Butler J, Izadi H, Zielinski IM, Aarts P, Birtles D, Green D. Kinematic parameters of hand movement during a disparate bimanual movement task in children with unilateral Cerebral Palsy. Hum Mov Sci 2016; 46:239-50. [PMID: 26803675 DOI: 10.1016/j.humov.2016.01.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 01/11/2016] [Accepted: 01/12/2016] [Indexed: 10/22/2022]
Abstract
Children with unilateral Cerebral Palsy (uCP) experience problems performing tasks requiring the coordinated use of both hands (bimanual coordination; BC). Additionally, some children with uCP display involuntary symmetrical activation of the opposing hand (mirrored movements). Measures, used to investigate therapy-related improvements focus on the functionality of the affected hand during unimanual or bimanual tasks. None however specifically address spatiotemporal integration of both hands. We explored the kinematics of hand movements during a bimanual task to identify parameters of BC. Thirty-seven children (aged 10.9±2.6years, 20 male) diagnosed with uCP participated. 3D kinematic motion analysis was performed during the task requiring opening of a box with their affected- (AH) or less-affected hand (LAH), and pressing a button inside with the opposite hand. Temporal and spatial components of data were extracted and related to measures of hand function and level of impairment. Total task duration was correlated with the Jebsen-Taylor Test of Hand Function in both conditions (either hand leading with the lid-opening). Spatial accuracy of the LAH when the box was opened with their AH was correlated with outcomes on the Children's Hand Use Experience Questionnaire. Additionally, we found a subgroup of children displaying non-symmetrical movement interference associated with greater movement overlap when their affected hand opened the box. This subgroup also demonstrated decreased use of the affected hand during bimanual tasks. Further investigation of bimanual interference, which goes beyond small scaled symmetrical mirrored movements, is needed to consider its impact on bimanual task performance following early unilateral brain injury.
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Affiliation(s)
- Julian Rudisch
- Department of Sport and Health Sciences, Oxford Brookes University, Oxford, United Kingdom.
| | - Jenny Butler
- Department of Sport and Health Sciences, Oxford Brookes University, Oxford, United Kingdom
| | - Hooshang Izadi
- Department of Mechanical Engineering and Mathematical Sciences, Oxford Brookes University, Oxford, United Kingdom
| | | | | | - Deirdre Birtles
- School of Psychology, University of East London, London, United Kingdom
| | - Dido Green
- Department of Sport and Health Sciences, Oxford Brookes University, Oxford, United Kingdom
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Neuroplasticity: Insights from Patients Harboring Gliomas. Neural Plast 2016; 2016:2365063. [PMID: 27478645 PMCID: PMC4949342 DOI: 10.1155/2016/2365063] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 06/08/2016] [Indexed: 12/16/2022] Open
Abstract
Neuroplasticity is the ability of the brain to reorganize itself during normal development and in response to illness. Recent advances in neuroimaging and direct cortical stimulation in human subjects have given neuroscientists a window into the timing and functional anatomy of brain networks underlying this dynamic process. This review will discuss the current knowledge about the mechanisms underlying neuroplasticity, with a particular emphasis on reorganization following CNS pathology. First, traditional mechanisms of neuroplasticity, most relevant to learning and memory, will be addressed, followed by a review of adaptive mechanisms in response to pathology, particularly the recruitment of perilesional cortical regions and unmasking of latent connections. Next, we discuss the utility and limitations of various investigative techniques, such as direct electrocortical stimulation (DES), functional magnetic resonance imaging (fMRI), corticocortical evoked potential (CCEP), and diffusion tensor imaging (DTI). Finally, the clinical utility of these results will be highlighted as well as possible future studies aimed at better understanding of the plastic potential of the brain with the ultimate goal of improving quality of life for patients with neurologic injury.
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