{"title":"Twenty years of SIRPIDs: What have we learned?","authors":"Michael W.K. Fong , Lawrence J. Hirsch","doi":"10.1016/j.neucli.2024.103024","DOIUrl":"10.1016/j.neucli.2024.103024","url":null,"abstract":"","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103024"},"PeriodicalIF":2.7,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535199","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}
Mariana Lopes Martins , Melyssa Kellyane Cavalcanti Galdino , Daniel Soares Ferreira Silva , Eliza Carolina Dantas Valença , Mariana Braz dos Santos , Jessica Figueiredo de Medeiros , Daniel Gomes da Silva Machado , Marine Raquel Diniz da Rosa
{"title":"Effect of transcranial direct current stimulation on tinnitus modulation: A randomized, double-blind, and placebo-controlled clinical trial","authors":"Mariana Lopes Martins , Melyssa Kellyane Cavalcanti Galdino , Daniel Soares Ferreira Silva , Eliza Carolina Dantas Valença , Mariana Braz dos Santos , Jessica Figueiredo de Medeiros , Daniel Gomes da Silva Machado , Marine Raquel Diniz da Rosa","doi":"10.1016/j.neucli.2024.103020","DOIUrl":"10.1016/j.neucli.2024.103020","url":null,"abstract":"<div><h3>Objectives</h3><div>To evaluate the short and long-term effects of anodal tDCS (a-tDCS) targeting the left temporoparietal area (LTA) on tinnitus severity, annoyance, and loudness.</div></div><div><h3>Methods</h3><div>This is a double-blind, randomized, sham-controlled, and parallel-group clinical trial. A total of 42 individuals with tinnitus were randomized to a-tDCS (<em>n</em> = 24) or sham tDCS (<em>n</em> = 18). The a-tDCS group received tDCS over the LTA during five consecutive day sessions (2 mA, 20 min). The sham group received a placebo current with the same characteristics as the a-tDCS group. Participants were assessed at baseline, after the fifth session, and at the 30-day follow-up, using hearing assessments and symptom questionnaires.</div></div><div><h3>Results</h3><div>There was no effect of comparison between groups or interaction effect (time x group) in all hearing assessments and symptom questionnaires. There was only a main effect of time for Tinnitus Handicap Inventory - THI [F(1.642, 45.988) = 5.128; <em>p</em> = 0.014; η<sup>2</sup> = 0.155]. Bonferroni post hoc showed that there was a significant difference in THI in the sham group between pre and post-treatment [CI (0.107, 14.643; <em>p</em> = 0.046)]. However, there was no difference between pre-treatment and follow-up THI, or between post-treatment and follow-up THI. There was no treatment effect on tinnitus severity (assessed by Tinnitus Functional Inventory - TFI), tinnitus annoyance or loudness (assessed by Visual Analogue Scale - VAS), or tinnitus pitch, loudness or minimum masking level (assessed by tinnitometry).</div></div><div><h3>Conclusion</h3><div>Five consecutive sessions of a-tDCS targeting LTA do not improve tinnitus severity, annoyance, and loudness. Future studies should investigate if other tDCS protocols are effective or a combination of tDCS with other forms of treatment.</div></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103020"},"PeriodicalIF":2.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504824","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}
Hamid Karimi-Rouzbahani , Simon Vogrin , Miao Cao , Chris Plummer , Aileen McGonigal
{"title":"Multimodal and quantitative analysis of the epileptogenic zone network in the pre-surgical evaluation of drug-resistant focal epilepsy","authors":"Hamid Karimi-Rouzbahani , Simon Vogrin , Miao Cao , Chris Plummer , Aileen McGonigal","doi":"10.1016/j.neucli.2024.103021","DOIUrl":"10.1016/j.neucli.2024.103021","url":null,"abstract":"<div><div>Surgical resection for epilepsy often fails due to incomplete Epileptogenic Zone Network (EZN) localization from scalp electroencephalography (EEG), stereo-EEG (SEEG), and Magnetic Resonance Imaging (MRI). Subjective interpretation based on interictal, or ictal recordings limits conventional EZN localization. This study employs multimodal analysis using high-density-EEG (HDEEG), Magnetoencephalography (MEG), functional-MRI (fMRI), and SEEG to overcome these limitations in a patient with drug-resistant MRI-negative focal epilepsy. A 17-year-old with drug-resistant epilepsy underwent evaluation. HDEEG, MEG, fMRI, and SEEG were used, with a novel HDEEG-cap facilitating simultaneous EEG-MEG and EEG-fMRI recordings. Electrical and magnetic source imaging were performed, and fMRI data were analysed for homogenous regions. SEEG analysis involved spike detection, spike timing analysis, ictal fast activity quantification, and Granger-based connectivity analysis. Non-invasive sessions revealed consistent interictal source imaging results identifying the EZN in the right anterior cingulate cortex. EEG-fMRI highlighted broader activation in the right cingulate cortex. SEEG analysis localized spikes and fast activity in the right anterior and posterior cingulate gyri. Multi-modal analysis suggested the EZN in the right frontal lobe, primarily involving the anterior and mid-cingulate cortices. Multi-modal non-invasive analyses can optimise SEEG implantation and surgical decision-making. Invasive analyses corroborated non-invasive findings, emphasising the importance of individual-case quantitative analysis across modalities in complex epilepsy cases.</div></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103021"},"PeriodicalIF":2.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504825","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}
Thibaut Mussigmann , Benjamin Bardel , Silvia Casarotto , Suhan Senova , Mario Rosanova , François Vialatte , Jean-Pascal Lefaucheur
{"title":"Classical, spaced, or accelerated transcranial magnetic stimulation of motor cortex for treating neuropathic pain: A 3-arm parallel non-inferiority study","authors":"Thibaut Mussigmann , Benjamin Bardel , Silvia Casarotto , Suhan Senova , Mario Rosanova , François Vialatte , Jean-Pascal Lefaucheur","doi":"10.1016/j.neucli.2024.103012","DOIUrl":"10.1016/j.neucli.2024.103012","url":null,"abstract":"<div><h3>Background</h3><p>Repetitive transcranial magnetic stimulation (rTMS) of the primary motor cortex (M1) at high frequency (HF) is an effective treatment of neuropathic pain. The classical HF-rTMS protocol (CHF-rTMS) includes a daily session for one week as an induction phase of treatment followed by more spaced sessions. Another type of protocol without an induction phase and based solely on spaced sessions of HF-rTMS (SHF-rTMS) has also been shown to produce neuropathic pain relief. However, CHF-rTMS and SHF-rTMS of M1 have never been compared regarding their analgesic potential. Another type of rTMS paradigm, called accelerated intermittent theta burst stimulation (ACC-iTBS), has recently been proposed for the treatment of depression, the other clinical condition for which HF-rTMS is proposed as an effective therapeutic strategy. ACC-iTBS combines a high number of pulses delivered in short sessions grouped into a few days of stimulation. This type of protocol has never been applied to M1 for the treatment of pain.</p></div><div><h3>Methods/Design</h3><p>The objective of this single-centre randomized study is to compare the efficacy of three different rTMS protocols for the treatment of chronic neuropathic pain: CHF-rTMS, SHF-rTMS, and ACC-iTBS. The CHF-rTMS will consists of 10 stimulation sessions, including 5 daily sessions of 10Hz-rTMS (3,000 pulses per session) over one week, then one session per week for 5 weeks, for a total of 30,000 pulses delivered in 10 stimulation days. The SHF-rTMS protocol will only include 4 sessions of 20Hz-rTMS (1,600 pulses per session), one every 15 days, for a total of 6,400 pulses delivered in 4 stimulation days. The ACC-iTBS protocol will comprise 5 sessions of iTBS (600 pulses per session) completed in half a day for 2 consecutive days, repeated 5 weeks later, for a total of 30,000 pulses delivered in 4 stimulation days. Thus, CHF-rTMS and ACC-iTBS protocols will share a higher total number of TMS pulses (30,000 pulses) compared to SHF-rTMS protocol (6,400 pulses), while CHF-rTMS protocol will include a higher number of stimulation days (10 days) compared to ACC-iTBS and SHF-rTMS protocols (4 days). In all protocols, the M1 target will be defined in the same way and stimulated at the same intensity using a navigated rTMS (nTMS) procedure. The evaluation will be based on clinical outcomes with various scales and questionnaires assessed every week, from two weeks before the 7-week period of therapeutic stimulation until 4 weeks after. Additionally, three sets of neurophysiological outcomes (resting-state electroencephalography (EEG), nTMS-EEG recordings, and short intracortical inhibition measurement with threshold tracking method) will be assessed the week before and after the 7-week period of therapeutic stimulation.</p></div><div><h3>Discussion</h3><p>This study will make it possible to compare the analgesic efficacy of the CHF-rTMS and SHF-rTMS protocols and to appraise that of the ACC-iTBS protoco","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103012"},"PeriodicalIF":2.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142232155","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}
S. Dionisio , I. Althubaiti , M. Aldosari , F Alsallom , N. Alomar , F. Babtain , A. Alkhotani , S. Baeesa , A. Najjar , A. Sabbagh , Z. Althani , F. Alotaibi , K. Alqadi
{"title":"Stereo electroencephalography in the kingdom of Saudi Arabia","authors":"S. Dionisio , I. Althubaiti , M. Aldosari , F Alsallom , N. Alomar , F. Babtain , A. Alkhotani , S. Baeesa , A. Najjar , A. Sabbagh , Z. Althani , F. Alotaibi , K. Alqadi","doi":"10.1016/j.neucli.2024.103007","DOIUrl":"10.1016/j.neucli.2024.103007","url":null,"abstract":"<div><p>Epilepsy surgery and intracranial monitoring have a long history in the Kingdom of Saudi Arabia, spanning over 30 years. Stereo-EEG however, is a more recent offering. In this short communication, we discuss how Stereo-EEG has grown in the context of the Kingdom's healthcare model and the Vision 2030 model. We discuss the various positives of this technique and methodology as well as the various challenges that the hospitals offering Stereo-EEG have faced.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103007"},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142164792","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}
Yan Wang , Jiajia Yang , Wei Wang , Xin Zhou, Xuefeng Wang, Jing Luo, Feng Li
{"title":"A novel nomogram for predicting the prognosis of critically ill patients with EEG patterns exhibiting stimulus-induced rhythmic, periodic, or ictal discharges","authors":"Yan Wang , Jiajia Yang , Wei Wang , Xin Zhou, Xuefeng Wang, Jing Luo, Feng Li","doi":"10.1016/j.neucli.2024.103010","DOIUrl":"10.1016/j.neucli.2024.103010","url":null,"abstract":"<div><h3>Objectives</h3><p>To explore the factors associated with poor prognosis in critically ill patients with Electroencephalogram (EEG) patterns exhibiting stimulus-induced rhythmic, periodic, or ictal discharges (SIRPIDs), and to construct a prognostic prediction model.</p></div><div><h3>Methods</h3><p>This study included a total of 53 critically ill patients with EEG patterns exhibiting SIRPIDs who were admitted to the First Affiliated Hospital of Chongqing Medical University from May 2023 to March 2024. Patients were divided into two groups based on their Modified Rankin Scale (mRS) scores at discharge: good prognosis group (0–3 points) and poor prognosis group (4–6 points). Retrospective analyses were performed on the clinical and EEG parameters of patients in both groups. Logistic regression analysis was applied to identify the risk factors related to poor prognosis in critically ill patients with EEG patterns exhibiting SIRPIDs; a risk prediction model for poor prognosis was constructed, along with an individualized predictive nomogram model, and the predictive performance and consistency of the model were evaluated.</p></div><div><h3>Results</h3><p>Multivariate logistic regression analysis revealed that APACHE II score (OR=1.217, 95 %CI=1.030∼1.438), slow frequency bands or no obvious brain electrical activity (OR=8.720, 95 %CI=1.220∼62.313), and no sleep waveforms (OR=9.813, 95 %CI=1.371∼70.223) were independent risk factors for poor prognosis in patients. A regression model established based on multivariate logistic regression analysis had an area under the curve of 0.902. The model's accuracy was 90.60 %, with a sensitivity of 92.86 % and a specificity of 89.70 %. The nomogram model, after internal validation, showed a concordance index of 0.904.</p></div><div><h3>Conclusions</h3><p>A high APACHE II score, EEG patterns with slow frequency bands or no obvious brain electrical activity, and no sleep waveforms were independent risk factors for poor prognosis in patients with SIRPIDs. The nomogram model constructed based on these factors had a favorably high level of accuracy in predicting the risk of poor prognosis and held certain reference and application value for clinical neurofunctional assessment and prognostic determination.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103010"},"PeriodicalIF":2.7,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148244","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}
Francis Houde , Russell Butler , Etienne St-Onge , Marylie Martel , Véronique Thivierge , Maxime Descoteaux , Kevin Whittingstall , Guillaume Leonard
{"title":"Anatomical measurements and field modeling to assess transcranial magnetic stimulation motor and non-motor effects","authors":"Francis Houde , Russell Butler , Etienne St-Onge , Marylie Martel , Véronique Thivierge , Maxime Descoteaux , Kevin Whittingstall , Guillaume Leonard","doi":"10.1016/j.neucli.2024.103011","DOIUrl":"10.1016/j.neucli.2024.103011","url":null,"abstract":"<div><h3>Objective</h3><p>Explore how anatomical measurements and field modeling can be leveraged to improve investigations of transcranial magnetic stimulation (TMS) effects on both motor and non-motor TMS targets.</p></div><div><h3>Methods</h3><p>TMS motor effects (targeting the primary motor cortex [M1]) were evaluated using the resting motor threshold (rMT), while TMS non-motor effects (targeting the superior temporal gyrus [STG]) were assessed using a pain memory task. Anatomical measurements included scalp-cortex distance (SCD) and cortical thickness (CT), whereas field modeling encompassed the magnitude of the electric field (E) induced by TMS.</p></div><div><h3>Results</h3><p>Anatomical measurements and field modeling values differed significantly between M1 and STG. For TMS motor effects, rMT was correlated with SCD, CT, and E values at M1 (<em>p</em> < 0.05). No correlations were found between these metrics for the STG and TMS non-motor effects (pain memory; all p-values > 0.05).</p></div><div><h3>Conclusion</h3><p>Although anatomical measurements and field modeling are closely related to TMS motor effects, their relationship to non-motor effects – such as pain memory – appear to be much more tenuous and complex, highlighting the need for further advancement in our use of TMS and virtual lesion paradigms.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103011"},"PeriodicalIF":2.7,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148245","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}
Leila Triki , Nouha Gammoudi , Lassaad Chtourou , Syrine Gallas , Nabil Tahri , Hela G. Zouari
{"title":"Dysfunction of the autonomic nervous system in gastro-esophageal reflux disease: Consequences for the cardiovascular system","authors":"Leila Triki , Nouha Gammoudi , Lassaad Chtourou , Syrine Gallas , Nabil Tahri , Hela G. Zouari","doi":"10.1016/j.neucli.2024.103009","DOIUrl":"10.1016/j.neucli.2024.103009","url":null,"abstract":"<div><h3>Objective</h3><p>The pathophysiology of gastro esophageal reflux disease (GERD) implicates autonomic dysregulation of the lower esophageal sphincter tone. Our goal is to investigate whether this dysregulation of the autonomic nervous system (ANS) function observed in isolated GERD cases can affect other systems, such as cardiovascular regulation.</p><p>Methods: Twenty-five participants were included in the study, 11 patients with isolated GERD and 14 controls. All patients and 7 controls responded to a COMposite Autonomic Symptoms Score 31 (COMPASS 31) questionnaire and underwent functional explorations including EMLA test, sympathetic skin response (SSR), 24-hour heart rate recording and ambulatory blood pressure measurement (ABPM). Seven additional controls underwent a 24-hour heart rate recording only.</p></div><div><h3>Results</h3><p>GERD patients (Age: mean 36.81±7.82; SR= 0.22) showed high clinically dysautonomic scores (COMPASS 31) (<em>p</em> = 0.015), increased Heart rate variability (HRV) parameters (daytime, nighttime, 24-hour SDNN (standard deviation of the RR interval (NN)), respectively <em>p</em> = 0.003, <em>p</em> < 0.001, <em>p</em> = 0.001; daytime and nighttime very low frequencies (VLF) respectively <em>p</em> = 0.03 and <em>p</em> = 0.007), impaired nocturnal dipping of blood pressure (3/11 patients) and high positivity of EMLA test (7/11, <em>p</em> = 0.037). These outcomes were strongly correlated with clinical dysautonomic assessment. No difference was observed between patients and controls regarding SSR.</p></div><div><h3>Conclusion</h3><p>Our data suggests a high parasympathetic tone amongst patients with GERD and a dysregulation of parasympathetic and sympathetic balance in the cardiovascular system with an impairment of the peripheral sympathetic fibers of cutaneous microcirculation, assessed by the EMLA test. GERD may be an inaugural symptom of autonomic neuropathy. Further functional exploration of peripheral small fibers seems to be necessary.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 6","pages":"Article 103009"},"PeriodicalIF":2.7,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148243","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 high frequency rTMS on nociceptive pain in Parkinson's disease – Towards a personalized mechanism-based therapeutic approach","authors":"Samar S. Ayache , Moussa A Chalah , Veit Mylius","doi":"10.1016/j.neucli.2024.103008","DOIUrl":"10.1016/j.neucli.2024.103008","url":null,"abstract":"","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 5","pages":"Article 103008"},"PeriodicalIF":2.7,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142048962","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}
Evangelos Anagnostou , Maria Kouvli , Evangelia Karagianni , Anastasia Gamvroula , Theodosis Kalamatianos , George Stranjalis , Maria Skoularidou
{"title":"Romberg's test revisited: Changes in classical and advanced sway metrics in patients with pure sensory neuropathy","authors":"Evangelos Anagnostou , Maria Kouvli , Evangelia Karagianni , Anastasia Gamvroula , Theodosis Kalamatianos , George Stranjalis , Maria Skoularidou","doi":"10.1016/j.neucli.2024.102999","DOIUrl":"10.1016/j.neucli.2024.102999","url":null,"abstract":"<div><h3>Objectives</h3><p>The Romberg test, undoubtedly a classical and well-established method in physical neurological assessment of patients with sensory ataxia, has long been suspected to be prone to several limitations. Here, we quantified upright stance before and after visual deprivation in a selected cohort of patients with pure sensory neuropathy.</p></div><div><h3>Methods</h3><p>Static balance was assessed in sensory neuropathy patients during quiet stance on a force platform under different visual and proprioceptive feedback conditions. Sural nerve neurography was employed to evaluate the severity of peripheral neuropathy. Conventional and advanced postural sway metrics were investigated to draw a quantitative analogy to the clinical Romberg test.</p></div><div><h3>Results</h3><p>Posturographic analyses showed that patients displayed Romberg and vestibular Romberg quotient values around 2, indicating an approximately twofold increase in body sway in the absence of vision. However, the diagnostic discrimination ability between patients and controls was only modest. Even less impactful were the diagnostic contributions of frequency domain and non-linear sway analyses. This was primarily attributed to the heightened body sway exhibited by patients with sensory neuropathy under 'eyes open' conditions, diminishing the contrast with the 'eyes closed' condition as assessed in the classical Romberg test.</p></div><div><h3>Conclusion</h3><p>We conclude that the Romberg test, even in its quantitative form with the aid of an apparatus, had an unsatisfactory classification value in terms of distinguishing patients from healthy controls. Instead, it should be interpreted within the comprehensive context of the broader neurological examination and the electrodiagnosis of peripheral nerve function.</p></div>","PeriodicalId":19134,"journal":{"name":"Neurophysiologie Clinique/Clinical Neurophysiology","volume":"54 5","pages":"Article 102999"},"PeriodicalIF":2.7,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141752239","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}