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Vucic S, Stanley Chen KH, Kiernan MC, Hallett M, Benninger DH, Di Lazzaro V, Rossini PM, Benussi A, Berardelli A, Currà A, Krieg SM, Lefaucheur JP, Long Lo Y, Macdonell RA, Massimini M, Rosanova M, Picht T, Stinear CM, Paulus W, Ugawa Y, Ziemann U, Chen R. Clinical diagnostic utility of transcranial magnetic stimulation in neurological disorders. Updated report of an IFCN committee. Clin Neurophysiol 2023; 150:131-175. [PMID: 37068329 PMCID: PMC10192339 DOI: 10.1016/j.clinph.2023.03.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/28/2023] [Accepted: 03/09/2023] [Indexed: 03/31/2023]
Abstract
The review provides a comprehensive update (previous report: Chen R, Cros D, Curra A, Di Lazzaro V, Lefaucheur JP, Magistris MR, et al. The clinical diagnostic utility of transcranial magnetic stimulation: report of an IFCN committee. Clin Neurophysiol 2008;119(3):504-32) on clinical diagnostic utility of transcranial magnetic stimulation (TMS) in neurological diseases. Most TMS measures rely on stimulation of motor cortex and recording of motor evoked potentials. Paired-pulse TMS techniques, incorporating conventional amplitude-based and threshold tracking, have established clinical utility in neurodegenerative, movement, episodic (epilepsy, migraines), chronic pain and functional diseases. Cortical hyperexcitability has emerged as a diagnostic aid in amyotrophic lateral sclerosis. Single-pulse TMS measures are of utility in stroke, and myelopathy even in the absence of radiological changes. Short-latency afferent inhibition, related to central cholinergic transmission, is reduced in Alzheimer's disease. The triple stimulation technique (TST) may enhance diagnostic utility of conventional TMS measures to detect upper motor neuron involvement. The recording of motor evoked potentials can be used to perform functional mapping of the motor cortex or in preoperative assessment of eloquent brain regions before surgical resection of brain tumors. TMS exhibits utility in assessing lumbosacral/cervical nerve root function, especially in demyelinating neuropathies, and may be of utility in localizing the site of facial nerve palsies. TMS measures also have high sensitivity in detecting subclinical corticospinal lesions in multiple sclerosis. Abnormalities in central motor conduction time or TST correlate with motor impairment and disability in MS. Cerebellar stimulation may detect lesions in the cerebellum or cerebello-dentato-thalamo-motor cortical pathways. Combining TMS with electroencephalography, provides a novel method to measure parameters altered in neurological disorders, including cortical excitability, effective connectivity, and response complexity.
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Affiliation(s)
- Steve Vucic
- Brain, Nerve Research Center, The University of Sydney, Sydney, Australia.
| | - Kai-Hsiang Stanley Chen
- Department of Neurology, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan
| | - Matthew C Kiernan
- Brain and Mind Centre, The University of Sydney; and Department of Neurology, Royal Prince Alfred Hospital, Australia
| | - Mark Hallett
- Human Motor Control Section, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Bethesda, Maryland, United States
| | - David H Benninger
- Department of Neurology, University Hospital of Lausanne (CHUV), Switzerland
| | - Vincenzo Di Lazzaro
- Unit of Neurology, Neurophysiology, Neurobiology, Department of Medicine, University Campus Bio-Medico of Rome, Rome, Italy
| | - Paolo M Rossini
- Department of Neurosci & Neurorehab IRCCS San Raffaele-Rome, Italy
| | - Alberto Benussi
- Centre for Neurodegenerative Disorders, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Alfredo Berardelli
- IRCCS Neuromed, Pozzilli; Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - Antonio Currà
- Department of Medico-Surgical Sciences and Biotechnologies, Alfredo Fiorini Hospital, Sapienza University of Rome, Terracina, LT, Italy
| | - Sandro M Krieg
- Department of Neurosurgery, Technical University Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Jean-Pascal Lefaucheur
- Univ Paris Est Creteil, EA4391, ENT, Créteil, France; Clinical Neurophysiology Unit, Henri Mondor Hospital, AP-HP, Créteil, France
| | - Yew Long Lo
- Department of Neurology, National Neuroscience Institute, Singapore General Hospital, Singapore, and Duke-NUS Medical School, Singapore
| | | | - Marcello Massimini
- Dipartimento di Scienze Biomediche e Cliniche, Università degli Studi di Milano, Milan, Italy; Istituto Di Ricovero e Cura a Carattere Scientifico, Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Mario Rosanova
- Department of Biomedical and Clinical Sciences University of Milan, Milan, Italy
| | - Thomas Picht
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Cluster of Excellence: "Matters of Activity. Image Space Material," Humboldt University, Berlin Simulation and Training Center (BeST), Charité-Universitätsmedizin Berlin, Germany
| | - Cathy M Stinear
- Department of Medicine Waipapa Taumata Rau, University of Auckland, Auckland, Aotearoa, New Zealand
| | - Walter Paulus
- Department of Neurology, Ludwig-Maximilians-Universität München, München, Germany
| | - Yoshikazu Ugawa
- Department of Human Neurophysiology, School of Medicine, Fukushima Medical University, Japan
| | - Ulf Ziemann
- Department of Neurology and Stroke, Eberhard Karls University of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany; Hertie Institute for Clinical Brain Research, Eberhard Karls University of Tübingen, Otfried-Müller-Straße 27, 72076 Tübingen, Germany
| | - Robert Chen
- Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital-UHN, Division of Neurology-University of Toronto, Toronto Canada
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Mittal N, Majdic BC, Peterson CL. Intermittent theta burst stimulation modulates biceps brachii corticomotor excitability in individuals with tetraplegia. J Neuroeng Rehabil 2022; 19:73. [PMID: 35843943 PMCID: PMC9290267 DOI: 10.1186/s12984-022-01049-9] [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: 09/17/2021] [Accepted: 07/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intermittent theta burst stimulation (iTBS) is a form of repetitive transcranial magnetic stimulation (TMS) that can increase corticomotor excitability of hand muscles in individuals with spinal cord injury (SCI). The objective of this study was to determine the effect of iTBS on the corticomotor excitability of the biceps brachii in individuals with tetraplegia. METHODS Ten individuals with low cervical SCI (C5-C8) and ten nonimpaired individuals completed three independent sessions. Motor evoked potentials (MEPs) served as our measure of corticomotor excitability and were collected before and after iTBS. MEPs were normalized by the electromyography corresponding to maximum voluntary contraction and analyzed using linear mixed effects models to determine the effect of iTBS (active or sham) on normalized MEPs (nMEPs). iTBS effects were compared to a ratio of active and resting motor thresholds as a measurement of corticomotor conductance potential. RESULTS Relative to sham, active iTBS increased nMEPs over time (p < 0.001) in individuals with SCI, but not nonimpaired individuals (p = 0.915). The amplitude of nMEPs were correlated with the biceps corticomotor conductance potential (p < 0.001), with nMEPs decreasing as the ratio increased at different rates after sham or active iTBS. CONCLUSIONS Preliminary results suggest that iTBS increases biceps corticomotor excitability in individuals with tetraplegia with effects that may be predicted by corticomotor conductance potential. Clinical trial registration NCT03277521 Registered on clinicaltrials.gov on August 24, 2017.
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Affiliation(s)
- Neil Mittal
- grid.224260.00000 0004 0458 8737Biomedical Engineering, College of Engineering, Rehabilitation Engineering to Advance Ability Lab, Virginia Commonwealth University, Biotech Eight, 737 N 5th Street, Richmond, VA 23219 USA
| | - Blaize C. Majdic
- grid.224260.00000 0004 0458 8737Biomedical Engineering, College of Engineering, Rehabilitation Engineering to Advance Ability Lab, Virginia Commonwealth University, Biotech Eight, 737 N 5th Street, Richmond, VA 23219 USA
| | - Carrie L. Peterson
- grid.224260.00000 0004 0458 8737Biomedical Engineering, College of Engineering, Rehabilitation Engineering to Advance Ability Lab, Virginia Commonwealth University, Biotech Eight, 737 N 5th Street, Richmond, VA 23219 USA
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Leemhuis E, Giuffrida V, De Martino ML, Forte G, Pecchinenda A, De Gennaro L, Giannini AM, Pazzaglia M. Rethinking the Body in the Brain after Spinal Cord Injury. J Clin Med 2022; 11:jcm11020388. [PMID: 35054089 PMCID: PMC8780443 DOI: 10.3390/jcm11020388] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 01/12/2022] [Indexed: 02/05/2023] Open
Abstract
Spinal cord injuries (SCI) are disruptive neurological events that severly affect the body leading to the interruption of sensorimotor and autonomic pathways. Recent research highlighted SCI-related alterations extend beyond than the expected network, involving most of the central nervous system and goes far beyond primary sensorimotor cortices. The present perspective offers an alternative, useful way to interpret conflicting findings by focusing on the deafferented and deefferented body as the central object of interest. After an introduction to the main processes involved in reorganization according to SCI, we will focus separately on the body regions of the head, upper limbs, and lower limbs in complete, incomplete, and deafferent SCI participants. On one hand, the imprinting of the body’s spatial organization is entrenched in the brain such that its representation likely lasts for the entire lifetime of patients, independent of the severity of the SCI. However, neural activity is extremely adaptable, even over short time scales, and is modulated by changing conditions or different compensative strategies. Therefore, a better understanding of both aspects is an invaluable clinical resource for rehabilitation and the successful use of modern robotic technologies.
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Affiliation(s)
- Erik Leemhuis
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
- Action and Body Lab, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Valentina Giuffrida
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
- Action and Body Lab, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Maria Luisa De Martino
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
- Action and Body Lab, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Giuseppe Forte
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
- Action and Body Lab, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Correspondence: (G.F.); (M.P.); Tel.: +39-6-49917633 (M.P.)
| | - Anna Pecchinenda
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
| | - Luigi De Gennaro
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
- Action and Body Lab, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
| | - Anna Maria Giannini
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
| | - Mariella Pazzaglia
- Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy; (E.L.); (V.G.); (M.L.D.M.); (A.P.); (L.D.G.); (A.M.G.)
- Action and Body Lab, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy
- Correspondence: (G.F.); (M.P.); Tel.: +39-6-49917633 (M.P.)
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Kikkert S, Pfyffer D, Verling M, Freund P, Wenderoth N. Finger somatotopy is preserved after tetraplegia but deteriorates over time. eLife 2021; 10:e67713. [PMID: 34665133 PMCID: PMC8575460 DOI: 10.7554/elife.67713] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 10/18/2021] [Indexed: 12/12/2022] Open
Abstract
Previous studies showed reorganised and/or altered activity in the primary sensorimotor cortex after a spinal cord injury (SCI), suggested to reflect abnormal processing. However, little is known about whether somatotopically specific representations can be activated despite reduced or absent afferent hand inputs. In this observational study, we used functional MRI and a (attempted) finger movement task in tetraplegic patients to characterise the somatotopic hand layout in primary somatosensory cortex. We further used structural MRI to assess spared spinal tissue bridges. We found that somatotopic hand representations can be activated through attempted finger movements in the absence of sensory and motor hand functioning, and no spared spinal tissue bridges. Such preserved hand somatotopy could be exploited by rehabilitation approaches that aim to establish new hand-brain functional connections after SCI (e.g. neuroprosthetics). However, over years since SCI the hand representation somatotopy deteriorated, suggesting that somatotopic hand representations are more easily targeted within the first years after SCI.
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Affiliation(s)
- Sanne Kikkert
- Neural Control of Movement Laboratory, Department of Health Sciences and Technology, ETH ZürichZürichSwitzerland
- Spinal Cord Injury Center, Balgrist University Hospital, University of ZürichZürichSwitzerland
| | - Dario Pfyffer
- Spinal Cord Injury Center, Balgrist University Hospital, University of ZürichZürichSwitzerland
| | - Michaela Verling
- Neural Control of Movement Laboratory, Department of Health Sciences and Technology, ETH ZürichZürichSwitzerland
| | - Patrick Freund
- Spinal Cord Injury Center, Balgrist University Hospital, University of ZürichZürichSwitzerland
- Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, University College LondonLondonUnited Kingdom
- Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, University College LondonLondonUnited Kingdom
- Department of Neurophysics, Max Planck Institute for Human Cognitive and Brain SciencesLeipzigGermany
| | - Nicole Wenderoth
- Neural Control of Movement Laboratory, Department of Health Sciences and Technology, ETH ZürichZürichSwitzerland
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Cerebellar contribution to sensorimotor adaptation deficits in humans with spinal cord injury. Sci Rep 2021; 11:2507. [PMID: 33510183 PMCID: PMC7843630 DOI: 10.1038/s41598-020-77543-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 10/29/2020] [Indexed: 11/08/2022] Open
Abstract
Humans with spinal cord injury (SCI) show deficits in associating motor commands and sensory feedback. Do these deficits affect their ability to adapt movements to new demands? To address this question, we used a robotic exoskeleton to examine learning of a sensorimotor adaptation task during reaching movements by distorting the relationship between hand movement and visual feedback in 22 individuals with chronic incomplete cervical SCI and 22 age-matched control subjects. We found that SCI individuals showed a reduced ability to learn from movement errors compared with control subjects. Sensorimotor areas in anterior and posterior cerebellar lobules contribute to learning of movement errors in intact humans. Structural brain imaging showed that sensorimotor areas in the cerebellum, including lobules I-VI, were reduced in size in SCI compared with control subjects and cerebellar atrophy increased with increasing time post injury. Notably, the degree of spared tissue in the cerebellum was positively correlated with learning rates, indicating participants with lesser atrophy showed higher learning rates. These results suggest that the reduced ability to learn from movement errors during reaching movements in humans with SCI involves abnormalities in the spinocerebellar structures. We argue that this information might help in the rehabilitation of people with SCI.
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Granata G, Valle G, Di Iorio R, Iodice F, Petrini FM, Strauss I, D'anna E, Iberite F, Lauretti L, Fernandez E, Romanello R, Stieglitz T, Raspopovic S, Calabresi P, Micera S, Rossini PM. Cortical plasticity after hand prostheses use: Is the hypothesis of deafferented cortex "invasion" always true? Clin Neurophysiol 2020; 131:2341-2348. [PMID: 32828036 DOI: 10.1016/j.clinph.2020.06.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/14/2020] [Accepted: 06/11/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To study motor cortex plasticity after a period of training with a new prototype of bidirectional hand prosthesis in three left trans-radial amputees, correlating these changes with the modification of Phantom Limb Pain (PLP) in the same period. METHODS Each subject underwent a brain motor mapping with Transcranial Magnetic Stimulation (TMS) and PLP evaluation with questionnaires during a six-month training with a prototype of bidirectional hand prosthesis. RESULTS The baseline motor maps showed in all three amputees a smaller area of muscles representation of the amputated side compared to the intact limb. After training, there was a partial reversal of the baseline asymmetry. The two subjects affected by PLP experienced a statistically significant reduction of pain. CONCLUSIONS Two apparently opposite findings, the invasion of the "deafferented" cortex by neighbouring areas and the "persistence" of neural structures after amputation, could vary according to different target used for measurement. Our results do not support a correlation between PLP and motor cortical changes. SIGNIFICANCE The selection of the target and of the task is essential for studies investigating motor brain plasticity. This study boosts against a direct and unique role of motor cortical changes on PLP genesis.
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Affiliation(s)
- G Granata
- Area of Neuroscience, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy.
| | - G Valle
- The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy; Bertarelli Foundation Chair in Translational Neural Engineering. Center for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - R Di Iorio
- Area of Neuroscience, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - F Iodice
- Area of Neuroscience, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy; Department of Neuroscience, San Raffaele Pisana IRCCS, Rome, Italy
| | - F M Petrini
- Bertarelli Foundation Chair in Translational Neural Engineering. Center for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - I Strauss
- The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy; Bertarelli Foundation Chair in Translational Neural Engineering. Center for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - E D'anna
- Bertarelli Foundation Chair in Translational Neural Engineering. Center for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - F Iberite
- The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy
| | - L Lauretti
- Institute of Neurosurgery, Catholic University of The Sacred Heart, Roma, Italy
| | - E Fernandez
- Institute of Neurosurgery, Catholic University of The Sacred Heart, Roma, Italy
| | - R Romanello
- Area of Neuroscience, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - T Stieglitz
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering-IMTEK, Bernstein Center Freiburg and BrainLinks-BrainTools Center, University of Freiburg, Freiburg, Germany
| | - S Raspopovic
- Bertarelli Foundation Chair in Translational Neural Engineering. Center for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - P Calabresi
- Area of Neuroscience, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - S Micera
- The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy; Bertarelli Foundation Chair in Translational Neural Engineering. Center for Neuroprosthetics and Institute of Bioengineering, School of Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - P M Rossini
- Department of Neuroscience, San Raffaele Pisana IRCCS, Rome, Italy
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