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Vagus Nerve Stimulation Therapy for Drug-Resistant Epilepsy Ichiro Sugiyama 1,2 , Mariko Fukumura 2,3 , Kenzo Kosugi 2 , Masahiro Toda 2 1Department of Neurosurgery, Inagi Municipal Hospital 2Department of Neurosurgery, Keio University School of Medicine 3Department of Neurosurgery, Saitama City Hospital Keyword: 迷走神経刺激 , 薬剤抵抗性てんかん , てんかん外科 , 緩和的治療 , ニューロモデュレーション , vagus nerve stimulation , drug-resistant epilepsy , epilepsy surgery , adjunctive treatment , neuromodulation pp.985-990
Published Date 2022/8/1
DOI https://doi.org/10.11477/mf.1416202165
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Abstract

Epilepsy is a neurological disorder with abnormal brain activity. It causes convulsions or periods of unusual behavior, sensations, and sometimes loss of awareness. Drug-resistant epilepsy (DRE) affects an estimated 15%-20% of patients with epilepsy. Vagus nerve stimulation (VNS) is a type of neuromodulation. VNS therapy is an adjunctive neurostimulation treatment for DRE patients who are unsuitable for respective surgery or have experienced unsuccessful surgery. VNS involves the use of a device to stimulate the vagus nerve with electrical impulses. VNS is not a cure for epilepsy, and most epilepsy patients can still experience seizures or use epilepsy medication after the procedure. However, 60%-70% of patients can have over 50% reduction in seizures 5 years after the VNS procedure. Seizure intensity may also reduce. VNS is safe with tolerable side effects in most cases. The mechanism of VNS action against epilepsy is still not accurately verified. Some people believe that VNS therapy improves their mood, memory, or alertness and may also help reduce depression. VNS therapy is also expected to work in other indications, including psychiatric, gastrointestinal, endocrinological, and immunological disorders.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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