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Ipsilateral motor evoked potentials in a patient with unihemispheric cortical atrophy due to Rasmussen encephalitis

Neural Regeneration Research 2019年第6期14卷 1025-1028页

作者： Raffaele Nardone Patrick B.Langthaler Andrea Orioli Viviana Versace Giuditta Ilaria Scarano Francesco Brigo Leopold Saltuari luca carnicelli Eugen Trinka luca Sebastianelli Department of Neurology Franz Tappeiner HospitalMeranoItaly Department of Neurology Hochzirl HospitalZirlAustria Centre for Cognitive Neurosciences Salzburg SalzburgAustria University for Medical Informatics and Health Technology UMITHall in TirolAustria Department of Neurology Christian Doppler KlinikParacelsus Medical UniversitySalzburgAustria Spinal Cord Injury and Tissue Regeneration Center SalzburgAustria Karl Landsteiner Institut für Neurorehabilitation und Raumfahrtneurologie SalzburgAustria Department of Mathematics Paris Lodron University of SalzburgAustria Department of Neurorehabilitation Hospital of VipitenoVipitenoItaly Research Unit for Neurorehabilitation South Tyrol BolzanoItaly Department of Psychology Franz Tappeiner HospitalMeranoItaly Department of Neuroscience Biomedicine and Movement ScienceUniversity of VeronaVeronaItaly

The role of the ipsilaterally descending motor pathways in the recovery mechanisms after unilateral hemispheric damage is still poorly understood. Motor output reorganization was investigated in a 56-year-old male patient with acquired unilateral hemispheric atrophy due to Rasmussen encephalitis. In particular,the ipsilateral corticospinal pathways were explored using focal transcranial magnetic stimulation. In the first dorsal interosseous and wrist extensors muscles, the median amplitudes of the ipsilateral motor evoked potentials induced by transcranial magnetic stimulation in the patient were higher than those of 10 age-matched healthy control subjects. In the biceps brachii muscle, the median amplitudes of the ipsilateral motor evoked potentials were the second largest in the patient compared to the controls. This study demonstrated a reinforcement of ipsilateral motor projections from the unaffected motor cortex to the hemiparetic hand in a subject with acquired unihemispheric cortical damage.

关键词： transcranial magnetic stimulation motor cortex ipsilateral motor evoked potentials ipsilateral motor pathways Rasmussen encephalitis cortical atrophy hemispheric damage

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