Extradural cortical stimulation for neural network recovery in stroke patients

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Abstract

BACKGROUND:

Extradural cortical stimulation combines the advantages of repetitive transcranial magnetic stimulation, transcranial direct current stimulation, subdural cortical stimulation and deep brain stimulation, which can significantly improve motor and language function after stroke.

OBJECTIVE:

To review the theoretical research and clinical application of extradural cortical stimulation for stroke recovery.

METHODS:

An online retrieval of PubMed database and CNKI database between January 1995 and April 2014 was performed for articles on theoretical research and clinical application of extradural cortical stimulation for stroke recovery, with the key words of “cortical stimulation, extradural motor cortex stimulation, extradural cortical implants, extradural cortical stimulation, stroke, rehabilitation” in English and Chinese.

RESULTS AND CONCLUSION:

Because of implantable cortical stimulation, the advantage of extradural cortical stimulation is its minimal invasiveness, high accuracy and transdural contact with the brain. For lack of effective treatment for the chronic phase of stroke patients with motor and language dysfunction, extradural cortical stimulation may be a new therapeutic method. Motor and language functional improvement must derive from reactivation of plasticity, local enhancement of perilesional areas, enhancement of network function and inter-hemispheric balance function, and amplification of sensory input.

Subject headings:

stroke; electric stimulation; review

Subject headings:

Zhao JL, Li JQ, Niu SL, Gao J. Extradural cortical stimulation for neural network recovery in stroke patients. Zhongguo Zuzhi Gongcheng Yanjiu. 2014;18(30):4900-4905.

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