Change in connection between corticospinal tract and Broca's area during motor recovery in a patient with an intracerebral hemorrhage

Title
Change in connection between corticospinal tract and Broca's area during motor recovery in a patient with an intracerebral hemorrhage
Author(s)
장성호권혁규
Keywords
FUNCTIONAL CONNECTIVITY; HAND MOTOR; EXCITABILITY; TRACTOGRAPHY; LANGUAGE; SPEECH; STROKE; TASK; MODULATION; TRACKING
Issue Date
201107
Publisher
SHENYANG EDITORIAL DEPT NEURAL REGENERATION RES
Citation
NEURAL REGENERATION RESEARCH, v.6, no.17, pp.1313 - 1315
Abstract
The present study reported a 42-year-old male patient who underwent conservative management for a spontaneous intracerebral hemorrhage in the left corona radiata and the basal ganglia. The patient presented with complete weakness of the right upper and lower extremities at the onset of intracerebral hemorrhage; however, he showed progressive motor recovery to the level that he was able to extent the affected extremities against some resistance at 5 weeks after onset. The corticospinal tract of the affected (left) hemisphere connected to the left Broca's area at 3 weeks after onset as shown by diffusion tensor tractography. By contrast, this connection had disappeared at 5 weeks after onset as shown by diffusion tensor tractogaphy. Transcranial magnetic stimulation study showed that no motor evoked potential was elicited from the affected (left) hemisphere at 3 weeks after onset, but motor evoked potentials were elicited at 5 weeks after onset. These findings suggest that the connection between the injured corticospinal tract and Broca's area in this patient appears to be a compensation for severe motor weakness; consequently, the connection seems to disappear with motor recovery.
URI
http://hdl.handle.net/YU.REPOSITORY/24882http://dx.doi.org/10.3969/j.issn.1673-5374.2011.17.006
ISSN
1673-5374
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의과대학 > 재활의학교실 > Articles
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