Stroke patient with mirror movement of the affected hand due to an ipsilateral motor pathway confirmed by transcranial magnetic stimulation: a case report.
A stroke patient with right hemiplegia and mirror movement underwent transcranial magnetic stimulation (TMS) and somatosensory-evoked potential (SEP) testing. The motor-evoked potentials (MEPs) of both abductor pollicis brevis muscles after stimulating the unaffected right hemisphere showed similar latencies, and were potentially produced by corticospinal tracts from the same motor cortex. N(20) responses of SEPs were recorded at C(4)' after contralateral stimulation of the unaffected left median nerve, but not stimulation of the affected right median nerve. The mirror movements and motor recovery might have utilized an ipsilateral motor pathway between the unaffected hemisphere and the affected hand.
Etoh
Seiji
S
Department of Rehabilitation and Physical Medicine, Faculty of Medicine, Kagoshima University, Kagoshima, Japan. etohs@m2.kufm.kagoshima-u.ac.jp
Noma
Tomokazu
T
Matsumoto
Shuji
S
Kamishita
Tomoyuki
T
Shimodozono
Megumi
M
Ogata
Atsuko
A
Kawahira
Kazumi
K
D020240:Apraxia, Ideomotor / Q000209:etiology; D004525:Efferent Pathways / Q000503:physiopathology; D019054:Evoked Potentials, Motor; D005073:Evoked Potentials, Somatosensory; D005260:Female; D007839:Functional Laterality; D006225:Hand / Q000503:physiopathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009069:Movement Disorders / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology*; D010291:Paresis / Q000209:etiology; D020521:Stroke / Q000150:complications* / Q000473:pathology / Q000503:physiopathology; D050781:Transcranial Magnetic Stimulation