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RESEARCH ARTICLE
Year : 2016  |  Volume : 11  |  Issue : 12  |  Page : 1932-1939

Does a combined intervention program of repetitive transcranial magnetic stimulation and intensive occupational therapy affect cognitive function in patients with post-stroke upper limb hemiparesis?


1 Department of Rehabilitation Medicine, The Jikei University School of Medicine, Tokyo, Japan
2 Department of Rehabilitation Medicine, Kyoto Ohara Memorial Hospital, Kyoto, Japan

Correspondence Address:
Takatoshi Hara
Department of Rehabilitation Medicine, The Jikei University School of Medicine, Tokyo
Japan
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1673-5374.197134

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Low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) to the contralesional hemisphere and intensive occupational therapy (iOT) have been shown to contribute to a significant improvement in upper limb hemiparesis in patients with chronic stroke. However, the effect of the combined intervention program of LF-rTMS and iOT on cognitive function is unknown. We retrospectively investigated whether the combined treatment influence patient's Trail-Making Test part B (TMT-B) performance, which is a group of easy and inexpensive neuropsychological tests that evaluate several cognitive functions. Twenty-five patients received 11 sessions of LF-rTMS to the contralesional hemisphere and 2 sessions of iOT per day over 15 successive days. Patients with right- and left-sided hemiparesis demonstrated significant improvements in upper limb motor function following the combined intervention program. Only patients with right-sided hemiparesis exhibited improved TMT-B performance following the combined intervention program, and there was a significant negative correlation between Fugl-Meyer Assessment scale total score change and TMT-B performance. The results indicate the possibility that LF-rTMS to the contralesional hemisphere combined with iOT improves the upper limb motor function and cognitive function of patients with right-sided hemiparesis. However, further studies are necessary to elucidate the mechanism of improved cognitive function.


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