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Repetitive wide-band cortical power in benign adult familial myoclonus epilepsy 良性成人家族性肌阵挛性癫痫的重复宽带皮质功率
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-19 DOI: 10.1016/j.clinph.2025.2111486
Haruo Yamanaka , Katsuya Kobayashi , Takefumi Hitomi , Maya Tojima , Masao Matsuhashi , Kiyohide Usami , Ryosuke Takahashi , Akio Ikeda

Background

Cortical tremor (CT), a rhythmic variant of cortical myoclonus (CM), is the hallmark of benign adult familial myoclonus epilepsy (BAFME), though the underlying mechanism of rhythmicity remains unproven. This study aimed to reveal the cortical rhythmic activity of CT using induced activity analysis for somatosensory evoked potentials (SEP).

Methods

We investigated 46 SEP datasets from 23 patients (11 with BAFME, 12 with other CM) and 35 SEPs from 18 healthy controls. SEPs were recorded by 1.1-Hz stimuli at a sampling rate of 10,000 Hz. A short-time Fourier transform was applied to each SEP epoch, and the power spectrums were averaged. We set an analysis window of 0–150 ms and a frequency range of 0–1,000 Hz for time–frequency representation and compared the induced power changes between groups.

Results

Stimulus-induced power changes over a wide-band (0–1000 Hz) were conspicuously prominent in BAFME patients compared to both CM and controls. These activities presented repetitive and alternating increases and decreases in power and its total number of induced activities were the highest in age 40s and declined with aging.

Conclusions

We demonstrated rhythmic cortical activity in BAFME patients, which may reflect the underlying pathophysiology of CT.

Significance

Detecting the induced activity of a single somatosensory stimulus may offer novel insights into the pathophysiology of BAFME.
背景皮质震颤(CT)是皮质肌阵挛(CM)的一种节律变体,是良性成人家族性肌阵挛性癫痫(BAFME)的标志,尽管节律性的潜在机制尚未得到证实。本研究旨在利用体感诱发电位(SEP)的诱发活动分析来揭示CT皮层的节律性活动。方法对23例BAFME患者(11例BAFME, 12例其他CM)的46个SEP数据集和18例健康对照的35个SEP数据集进行分析。在1.1 Hz的刺激下,以10,000 Hz的采样率记录sep。对每个SEP历元进行短时傅里叶变换,对功率谱进行平均。我们设置了0-150 ms的分析窗口和0-1,000 Hz的频率范围来表示时间-频率,并比较了组间诱导功率的变化。结果与CM和对照组相比,BAFME患者在宽频带(0-1000 Hz)上刺激引起的功率变化明显突出。这些活动的强度呈反复、交替的增减趋势,诱导活动总数在40岁时最高,随年龄增长而下降。结论BAFME患者有节律性皮层活动,这可能反映了CT的潜在病理生理。意义检测单个体感刺激的诱导活性可能为BAFME的病理生理学提供新的见解。
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引用次数: 0
Revisiting the accuracy of motor evoked potential determination: The overlooked role of surface electrode montage 重新审视运动诱发电位测定的准确性:表面电极蒙太奇被忽视的作用
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-17 DOI: 10.1016/j.clinph.2025.2111483
Marco Antonio Cavalcanti Garcia , Anaelli Aparecida Nogueira-Campos
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引用次数: 0
Reply to “Revisiting the accuracy of motor evoked potential determination: The overlooked role of surface electrode montage” 回复“重新审视运动诱发电位测定的准确性:表面电极蒙太奇被忽视的作用”。
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-17 DOI: 10.1016/j.clinph.2025.2111481
Marten Nuyts , Stefanie Verstraelen , Joana Frieske , Raf Meesen , Sybren Van Hoornweder
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引用次数: 0
The integrity of double-blinding of continuous theta-burst stimulation targeting the supplementary motor area in a within-subjects design 以辅助运动区域为目标的连续脉冲刺激双盲实验的完整性。
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-17 DOI: 10.1016/j.clinph.2025.2111482
Melker Hagsäter , Jonatan Malmros , Jonas Persson , Jonas Jester-Broms , Robert Bodén
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引用次数: 0
Clinical neurophysiology in movement disorders: toward integration into systems-based practice 运动障碍的临床神经生理学:迈向系统实践的整合。
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-16 DOI: 10.1016/j.clinph.2025.2111480
Karlo J. Lizarraga , Robert Chen
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引用次数: 0
Is EEG useful in predicting neurotoxicity and outcomes related to chimeric antigen receptor (CAR) T-cell therapy? 脑电图在预测嵌合抗原受体(CAR) t细胞治疗相关的神经毒性和预后方面有用吗?
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-16 DOI: 10.1016/j.clinph.2025.2111484
Brin E. Freund , Adrian Safa , Filippo Emanuele Colella , Guido Chiriboga , Toni Betiku , Andy Shar , Cornelia Drees , Jeffrey Britton , Anteneh M. Feyissa , William O. Tatum

Background

Chimeric antigen receptor (CAR) T-cell therapy revolutionized cancer treatment, though has potential for neurotoxicity (immune effector cell-associated neurotoxicity syndrome, ICANS). EEG has been proposed as a predictive and prognostic tool in ICANS.

Objective

Evaluate pre-treatment EEG, neuroimaging, and clinical features in predicting ICANS, and EEG in prognosis in ICANS.

Methods

Retrospective multicenter study involving adult patients who underwent CAR T-cell therapy at Mayo Clinic Florida, Minnesota, and Arizona between October 2019 and July 2024. Univariable, multivariable and survival analyses were performed.

Results

We included 207 patients (111 female). Pre-treatment EEG was performed in 50.2 % of patients. Multivariable analysis of EEG, imaging, and clinical data demonstrated older age (roughly 1 % increased odds per 1 year of increased age, p = 0.006) and generalized slowing on pre-treatment EEG being associated with ICANS (p = 0.021). There were no factors predictive of hospital duration or survival in ICANS using multivariable analysis. Patients with ICANS had longer hospitalization (p < 0.001) and were less likely to survive at 12- and 24-months (p = 0.001, p < 0.001 respectively).

Conclusion

ICANS is associated with longer hospitalization and worse survival. ICANS risk increases with older age. Generalized slowing on pre-treatment EEG may identify patients at risk of ICANS.

Significance

ICANS is associated with worse outcomes and may be predicted by pre-treatment EEG and older age.
背景:嵌合抗原受体(CAR) t细胞疗法彻底改变了癌症治疗,尽管它有潜在的神经毒性(免疫效应细胞相关神经毒性综合征,ICANS)。脑电图已被建议作为ICANS的预测和预后工具。目的:评价治疗前脑电图、神经影像学和临床特征对ICANS的预测价值,以及脑电图对ICANS预后的影响。方法:回顾性多中心研究,涉及2019年10月至2024年7月期间在佛罗里达州、明尼苏达州和亚利桑那州梅奥诊所接受CAR - t细胞治疗的成年患者。进行单变量、多变量和生存分析。结果:纳入207例患者,其中女性111例。50.2%的患者在治疗前进行脑电图检查。脑电图、影像学和临床数据的多变量分析表明,年龄越大(每增加1年的几率增加约1%,p = 0.006)和治疗前脑电图的普遍减慢与ICANS有关(p = 0.021)。使用多变量分析,没有预测ICANS患者住院时间或生存的因素。结论:ICANS患者住院时间较长,生存期较差。ICANS的风险随着年龄的增长而增加。治疗前脑电图的全身性减慢可以识别有ICANS风险的患者。意义:ICANS与较差的预后相关,可通过治疗前脑电图和年龄预测。
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引用次数: 0
Corticospinal excitability as distinctive neurophysiological feature of acquired glycine receptor antibody syndrome 皮质脊髓兴奋性是获得性甘氨酸受体抗体综合征的独特神经生理特征
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-14 DOI: 10.1016/j.clinph.2025.2111479
Pietro Antenucci , Lorenzo Rocchi , Emanuela Maria Raho , Michele Laudisi , Mariachiara Sensi , Maura Pugliatti , Anna Latorre , Jay Guido Capone
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引用次数: 0
Brain connectivity predict surgical outcomes of low-grade epilepsy-associated neuroepithelial tumors 脑连通性预测低级别癫痫相关神经上皮肿瘤的手术结果
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-13 DOI: 10.1016/j.clinph.2025.2111478
Wenjie Ming , Yang Zheng , Qi Lian , Chunhong Shen , Yinxi Zhang , Zhongjin Wang , Shuang Wang , Fang Li , Zhe Zheng , Yu Qi , Junming Zhu , Hemmings Wu

Objective

Low-grade epilepsy-associated neuroepithelial tumors (LEATs) often cause drug-resistant epilepsy. Despite complete resection of these lesions, approximately 20% of patients continue to experience suboptimal seizure control. This study aims to investigate the predictive value of quantitative features in determining the surgical outcomes for LEAT patients.

Methods

We retrospectively analyzed 44 temporal LEAT patients who underwent gross-total lesionectomy. EEG features, including power spectral density (PSD) and weighted phase lag index (wPLI), were compared between patients with good (Engel I) and poor (Engel II-IV) outcomes. Significant EEG features were identified through these analyses. Domain Adversarial Neural Network (DANN) was employed to assess the predictive value of these features for surgical outcomes.

Results

No significant PSD differences were found, but patients with good outcomes had higher alpha-band wPLI (p = 0.008). LEATnet, predicted outcomes with an AUC of 0.81and correctly classified 8 of 11 patients in the independent validation cohort.

Conclusions

Alpha-band functional connectivity is a key predictor of surgical outcomes in LEAT patients.

Significance

EEG-based connectivity analysis may improve prognostic accuracy and aid clinical decision-making in LEAT epilepsy.
目的:低级别癫痫相关神经上皮肿瘤(LEATs)常引起耐药癫痫。尽管完全切除了这些病变,大约20%的患者仍然经历不理想的癫痫控制。本研究旨在探讨定量特征在确定LEAT患者手术结果中的预测价值。方法回顾性分析44例颞叶LEAT患者行病灶全切术。比较好(Engel I)和差(Engel II-IV)患者的EEG特征,包括功率谱密度(PSD)和加权相位滞后指数(wPLI)。通过这些分析确定了重要的脑电图特征。应用领域对抗神经网络(DANN)来评估这些特征对手术结果的预测价值。结果两组患者PSD无显著差异,但预后良好的患者α带wPLI较高(p = 0.008)。LEATnet预测结果的AUC为0.81,并在独立验证队列中正确分类了11例患者中的8例。结论alpha -band功能连通性是LEAT患者手术预后的重要预测指标。基于脑电图的连通性分析可提高LEAT癫痫的预后准确性和辅助临床决策。
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引用次数: 0
Spatial activation of motor evoked potentials depends on paired-pulse transcranial magnetic stimulation orientation and intensity 运动诱发电位的空间激活取决于对脉冲经颅磁刺激的方向和强度
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-10 DOI: 10.1016/j.clinph.2025.2111477
Shokoofeh Parvin , Joona Juurakko , Heikki Sinisalo , Giacinto L. Cerone , Alberto Botter , Risto J. Ilmoniemi , Harri Piitulainen , Victor H. Souza

Objective

To investigate how stimulus orientation, intensity, and interstimulus interval (ISI) in paired-pulse transcranial magnetic stimulation (TMS) influence the spatial activation of motor evoked potentials (MEPs) in forearm flexor muscles.

Methods

Paired-pulse paradigms were applied to the motor cortex using multi-coil TMS (mTMS) to control the stimulus parameters electronically without coil repositioning. MEP spatial activation was recorded with a high-density surface electromyography (HDsEMG) grid over the forearm muscles. Conditioning stimuli (CS) were delivered at anterior-to-medial (0°) and posterior-to-medial (90°) orientations and 70–90 % of resting motor threshold (rMT), followed by test stimuli (TS) at 0° and 110 % rMT. ISIs of 0.5 and 8 ms probed neuronal refractoriness and intracortical facilitation, respectively.

Results

MEPs were facilitated at 8-ms and suppressed at 0.5-ms ISI. At 0.5 ms, changing CS orientation from 0° to 90° reduced suppression. Increasing CS intensity shifted activation centroids medially in most cases. Centroids were more medial at 8 ms and more lateral at 0.5 ms.

Conclusions

TMS pulse orientation, intensity, and ISI systematically affect the magnitude and spatial activation of forearm muscles.

Significance

Our findings highlight the utility of mTMS–HDsEMG in probing neurophysiological mechanisms of corticomotor control with important diagnostic and therapeutic clinical implications.
目的探讨双脉冲经颅磁刺激(TMS)对前臂屈肌运动诱发电位(MEPs)空间激活的影响。方法采用多线圈经颅磁刺激(mTMS)对运动皮层进行脉冲电刺激,无需重新定位线圈即可控制刺激参数。通过前臂肌肉的高密度表面肌电图(HDsEMG)网格记录MEP空间激活。条件反射刺激(CS)在前内侧(0°)和后内侧(90°)方向和70 - 90%的静息运动阈值(rMT)上进行,然后是测试刺激(TS)在0°和110% rMT上进行。0.5和8 ms的ISIs分别探测神经元的难治性和皮质内便利化。结果meps在8 ms时促进,在0.5 ms时抑制。在0.5 ms时,将CS方向从0°改变为90°降低了抑制。在大多数情况下,CS强度的增加使激活质心向内移动。结论stms脉冲方向、强度和ISI系统地影响前臂肌肉的大小和空间激活。我们的研究结果强调了mTMS-HDsEMG在探索皮质运动控制的神经生理机制方面的应用,具有重要的诊断和治疗临床意义。
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引用次数: 0
The price of scientific regulatory misclassification: the case of non-invasive brain stimulation in Europe. 科学监管错误分类的代价:欧洲非侵入性脑刺激的案例。
IF 3.6 3区 医学 Q1 CLINICAL NEUROLOGY Pub Date : 2025-12-09 DOI: 10.1016/j.clinph.2025.2111473
Simone Russo
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引用次数: 0
期刊
Clinical Neurophysiology
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