Neurophysiologie Clinique/Clinical Neurophysiology最新文献

{"title":"Great toe drop: Raison D'etre for ultrasound-guided electromyography","authors":"Mahmud Fazıl Aksakal , Ahmad Jasem Abdulsalam , Ayşen Akıncı , Bayram Kaymak , Levent Özçakar","doi":"10.1016/j.neucli.2024.102948","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102948","url":null,"abstract":"","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 2","pages":"Article 102948"},"PeriodicalIF":3.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140321186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of transcranial direct current stimulation of the left primary motor cortex area on hand grip strength and dexterity in healthy individuals: A double-blind randomized sham-controlled trial","authors":"Sharareh Roshanzamir ,&nbsp;Tayebeh Sadat Salehi Rihani ,&nbsp;Afsaneh Dadarkhah","doi":"10.1016/j.neucli.2024.102959","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102959","url":null,"abstract":"<div><h3>Background and objective</h3><p>Motor function plays a critical role in everyday activities, from basic self-care tasks to complex activities that require precision and dexterity. This study was conducted to investigate the effects of transcranial direct current stimulation (tDCS) on grip strength and hand dexterity in healthy individuals.</p></div><div><h3>Method</h3><p>We conducted a double-blind randomized clinical trial with two groups of sham and active tDCS. The anode was fixed over the primary motor cortex area M1 on the C3 point. The primary outcome was hand grip strength measured by a dynamometer and the secondary outcomes were hand dexterity and assembly assessed by the Purdue Pegboard test. The tDCS program was administered at rest three and two times for the first and second week for a total of five sessions of 20 min each.</p></div><div><h3>Results</h3><p>There was no significant improvement in the mean difference in grip strength between the sham (<em>N</em> = 27) and active (<em>N</em> = 27) tDCS groups (1.7 vs. 2.3, Mann-Whitney <em>U</em> test, <em>P</em> = 0.869, <em>d</em> = 0.02). Participants who received active tDCS showed subtle improvements in right-hand dexterity (0.6 vs. 1.3, <em>U</em> test <em>P</em> = 0.017, <em>d</em> = 0.33) and overall manual dexterity (1.4 vs. 3.2, <em>U</em> test <em>P</em> = 0.023, <em>d</em> = 0.31) compared with the sham group. Other comparisons for hand dexterity and assembly (motor coordination and fine skills during the manipulation of small objects) between the two groups were not significant. We did not find any adverse effects of sham or active tDCS.</p></div><div><h3>Conclusion</h3><p>Our study showed a potential for clinical improvement in hand dexterity after five sessions of tDCS in healthy individuals.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 4","pages":"Article 102959"},"PeriodicalIF":3.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140309766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative analysis of visually normal EEG reveals spectral power abnormalities in temporal lobe epilepsy","authors":"Maria Celeste Bonacci ,&nbsp;Ilaria Sammarra ,&nbsp;Maria Eugenia Caligiuri ,&nbsp;Miriam Sturniolo ,&nbsp;Iolanda Martino ,&nbsp;Patrizia Vizza ,&nbsp;Pierangelo Veltri ,&nbsp;Antonio Gambardella","doi":"10.1016/j.neucli.2024.102951","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102951","url":null,"abstract":"<div><h3>Objective</h3><p>To compare quantitative spectral parameters of visually-normal EEG between Mesial Temporal Lobe Epilepsy (MTLE) patients and healthy controls (HC).</p></div><div><h3>Method</h3><p>We enrolled 26 MTLE patients and 26 HC. From each recording we calculated total power of all frequency bands and determined alpha-theta (ATR) and alpha-delta (ADR) power ratios in different brain regions. Group-wise differences between spectral parameters were investigated (<em>p</em> &lt; 0.05). To test for associations between spectral-power and cognitive status, we evaluated correlations between neuropsychological tests and quantitative EEG (qEEG) metrics.</p></div><div><h3>Results</h3><p>In all comparisons, ATR and ADR were significantly decreased in MTLE patients compared to HC, particularly over the hemisphere ipsilateral to epileptic activity. A positive correlation was seen in MTLE patients between ATR in ipsilateral temporal lobe, and results of neuropsychological tests of auditory verbal learning (RAVLT and RAVLT-D), short term verbal memory (Digit span backwards), and executive function (Weigl's sorting test). ADR values in the contralateral posterior region correlated positively with RAVLT-D and Digit span backwards tests.</p></div><div><h3>Discussion</h3><p>Results confirmed that the power spectrum of qEEG is shifted towards lower frequencies in MTLE patients compared to HC.</p></div><div><h3>Conclusion</h3><p>Of note, our results were found in visually-normal recordings, providing further evidence of the value of qEEG for longitudinal monitoring of MTLE patients over time. Exploratory analysis of associations between qEEG and neuropsychological data suggest this could be useful for investigating effects of antiseizure medications on cognitive integrity in patients.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 3","pages":"Article 102951"},"PeriodicalIF":3.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0987705324000091/pdfft?md5=b589ca6fe7764618de2c54b3659eee78&pid=1-s2.0-S0987705324000091-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140321444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SFEMG in extensor digitorum communis and tibialis anterior: Relative sensitivity in myasthenia gravis","authors":"Thomas Zambelis,&nbsp;Vasiliki Zouvelou,&nbsp;Evangelos Anagnostou","doi":"10.1016/j.neucli.2024.102957","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102957","url":null,"abstract":"","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 4","pages":"Article 102957"},"PeriodicalIF":3.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140309684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Test-retest reliability of corticokinematic coherence in young children with cerebral palsy: An observational longitudinal study","authors":"Josselin Démas ,&nbsp;Mathieu Bourguignon ,&nbsp;Rodolphe Bailly ,&nbsp;Sandra Bouvier ,&nbsp;Sylvain Brochard ,&nbsp;Mickael Dinomais ,&nbsp;Patrick Van Bogaert","doi":"10.1016/j.neucli.2024.102965","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102965","url":null,"abstract":"<div><h3>Objectives</h3><p>To assess the test-retest reliability of the corticokinematic coherence (CKC), an electrophysiological marker of proprioception, in children with cerebral palsy (CP).</p></div><div><h3>Methods</h3><p>Electroencephalography (EEG) signals from 15 children with unilateral or bilateral CP aged 23 to 53 months were recorded in two sessions 3 months apart using 128-channel EEG caps. During each session, children's fingers were moved at 2 Hz by an experimenter, in separate recordings for the more-affected (MA) and less-affected (LA) hands. The CKC was computed at the electrode and source levels, at movement frequency F0 (2 Hz) and its first harmonic F1 (4 Hz). A two-way mixed-effects model intraclass-correlation coefficient (ICC) was computed for the maximum CKC strength across electrodes at F0 and F1 obtained during the two sessions.</p></div><div><h3>Results</h3><p>ICC of the CKC strength acquired from LA and MA hands pooled together were respectively 0.51 (95% CI: 0.30–0.68) at F0 and 0.96 (95% CI: 0.93–0.98) at F1. The mean distances separating the CKC peaks in the source space at the two evaluation times were in the order of a centimeter.</p></div><div><h3>Conclusion</h3><p>CKC is a robust electrophysiologic marker to study the longitudinal changes in cortical processing of proprioceptive afferences in young children with CP.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 4","pages":"Article 102965"},"PeriodicalIF":3.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140309744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EEG and acute confusional state at the emergency department","authors":"Sabine Prud'hon ,&nbsp;Hélène Amiel ,&nbsp;Adrien Zanin ,&nbsp;Eric Revue ,&nbsp;Nathalie Kubis ,&nbsp;Pierre Lozeron","doi":"10.1016/j.neucli.2024.102966","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102966","url":null,"abstract":"<div><h3>Objectives</h3><p>Acute confusional state (ACS) is a common cause of admission to the emergency department (ED). It can be related to numerous etiologies. Electroencephalography (EEG) can show specific abnormalities in cases of non-convulsive status epilepticus (NCSE), or metabolic or toxic encephalopathy. However, up to 80% of patients with a final diagnosis of NCSE have an ACS initially attributed to another cause. The exact place of EEG in the diagnostic work-up remains unclear.</p></div><div><h3>Methods</h3><p>Data of consecutive patients admitted to the ED for an ACS in a two-year period and who were referred for an EEG were collected. The initial working diagnosis was based on medical history, clinical, biological and imaging investigations allowing classification into four diagnostic categories. Comparison to the final diagnosis was performed after EEG recordings (and sometimes additional tests) were performed, which allowed the reclassification of some patients from one category to another.</p></div><div><h3>Results</h3><p>Seventy-five patients (mean age: 71.1 years) were included with the following suspected diagnoses: seizures for 8 (11%), encephalopathy for 14 (19%), other cause for 34 (45%) and unknown for 19 (25%). EEG was recorded after a mean of 1.5 days after symptom onset, and resulted in the reclassification of patients as follows: seizure for 15 (20%), encephalopathy for 15 (20%), other cause for 29 (39%) and unknown cause for 16 (21%). Moreover, ongoing epileptic activity (NCSE or seizure) and interictal epileptiform activity were found in eight (11%) patients initially diagnosed in another category.</p></div><div><h3>Discussion</h3><p>In our cohort, EEG was a key examination in the management strategy of ACS in 11% of patients admitted to the ED. It resulted in a diagnosis of epilepsy in these patients admitted with unusual confounding presentations.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 4","pages":"Article 102966"},"PeriodicalIF":3.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140296958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Focal to bilateral tonic-clonic seizure induced by high-frequency repetitive transcranial magnetic stimulation over the primary motor cortex in a woman with chronic low back pain: A case report","authors":"Philippe Patricio ,&nbsp;Hugo Massé-Alarie","doi":"10.1016/j.neucli.2024.102967","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102967","url":null,"abstract":"","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 4","pages":"Article 102967"},"PeriodicalIF":3.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140309683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Toward an electroclinical approach for neurophysiological hypersomnolence in sleep medicine","authors":"Jean-Arthur Micoulaud-Franchi ,&nbsp;Régis Lopez ,&nbsp;Aileen McGonigal ,&nbsp;Lino Nobili","doi":"10.1016/j.neucli.2024.102958","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102958","url":null,"abstract":"","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 2","pages":"Article 102958"},"PeriodicalIF":3.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140134573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sleepiness and the transition from wakefulness to sleep","authors":"Thomas Andrillon ,&nbsp;Jacques Taillard ,&nbsp;Mélanie Strauss","doi":"10.1016/j.neucli.2024.102954","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102954","url":null,"abstract":"<div><p>The transition from wakefulness to sleep is a progressive process that is reflected in the gradual loss of responsiveness, an alteration of cognitive functions, and a drastic shift in brain dynamics. These changes do not occur all at once. The sleep onset period (SOP) refers here to this period of transition between wakefulness and sleep. For example, although transitions of brain activity at sleep onset can occur within seconds in a given brain region, these changes occur at different time points across the brain, resulting in a SOP that can last several minutes. Likewise, the transition to sleep impacts cognitive and behavioral levels in a graded and staged fashion. It is often accompanied and preceded by a sensation of drowsiness and the subjective feeling of a need for sleep, also associated with specific physiological and behavioral signatures. To better characterize fluctuations in vigilance and the SOP, a multidimensional approach is thus warranted. Such a multidimensional approach could mitigate important limitations in the current classification of sleep, leading ultimately to better diagnoses and treatments of individuals with sleep and/or vigilance disorders. These insights could also be translated in real-life settings to either facilitate sleep onset in individuals with sleep difficulties or, on the contrary, prevent or control inappropriate sleep onsets.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 2","pages":"Article 102954"},"PeriodicalIF":3.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140062715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neuromuscular electrical stimulation for the treatment of diabetic sensorimotor polyneuropathy: A prospective, cohort, proof-of-concept study","authors":"Sasha Smith ,&nbsp;Raveena Ravikumar ,&nbsp;Catarina Carvalho ,&nbsp;Pasha Normahani ,&nbsp;Tristan Lane ,&nbsp;Alun H Davies","doi":"10.1016/j.neucli.2024.102943","DOIUrl":"https://doi.org/10.1016/j.neucli.2024.102943","url":null,"abstract":"<div><h3>Objective</h3><p>To assess a potential efficacy signal, safety and feasibility of neuromuscular electrical stimulation (NMES) therapy as an adjunct to standard care in patients with diabetic sensorimotor polyneuropathy (DSPN).</p></div><div><h3>Methods</h3><p>In this single-centre, prospective, cohort, proof-of-concept study, 25 patients with DSPN consented to at least one daily 30-minute NMES therapy session (Revitive® IX) for 10 weeks, with 20 patients completing the study. The primary outcome measure was nerve conductivity assessed using a nerve conduction study of the sural, superficial peroneal, common peroneal and tibial nerves at 10 weeks compared to baseline. Secondary outcomes included superficial femoral artery (SFA) haemodynamics during NMES therapy compared to rest and quality-of-life at 10 weeks compared to baseline.</p></div><div><h3>Results</h3><p>At 10 weeks, there were significant increases in sural sensory nerve action potential amplitude and conduction velocity (<em>p</em> &lt; 0.001), superficial peroneal sensory nerve action potential amplitude (<em>p</em> = 0.001) and conduction velocity (<em>p</em> = 0.002), common peroneal nerve conduction velocity (<em>p</em> = 0.004) and tibial nerve compound muscle action potential amplitude (<em>p</em> = 0.002) compared to baseline. SFA volume flow and time-averaged mean velocity significantly increased (<em>p</em> ≤ 0.003) during NMES compared to rest. Patient-reported Michigan Neuropathy Screening Instrument scores significantly decreased (<em>p</em> = 0.028) at 10 weeks compared to baseline. Three unrelated adverse events occurred, and 15 participants adhered to treatment.</p></div><div><h3>Conclusions</h3><p>NMES therapy as an adjunct to standard care for 10 weeks significantly increased lower limb nerve conductivity in patients with DSPN and may be beneficial in the treatment of DSPN.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 3","pages":"Article 102943"},"PeriodicalIF":3.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0987705324000017/pdfft?md5=6f09a8d3ff8df854c5cafac25d7d4f00&pid=1-s2.0-S0987705324000017-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139993063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}