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. 2022 Sep 1;13:951850. doi: 10.3389/fneur.2022.951850

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Copyright © 2022 Xie, Ma, Ji, Liu, Cai and Wu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The percentages of the patients with increased background frequency and decreased number of spikes on interictal EEG. (A) Compared with the baseline data of patients before stimulator implantation, at 6, 12, 18, and 24 months after stimulator implantation, the percentage of the patients whose background frequency increased >1.5Hz was respectively, 15.0, 50.0, 58.3 and 62.5%; and (B) Compared with the baseline data, at 6, 12, 18, and 24 months after stimulator implantation, the percentage of the patients whose interictal EEG showed a >50% decrease in spike number was respectively, 10, 40.0, 41.6 and 50.0%.