Annals of Neurosciences最新文献

{"title":"Locus of Control in Patients with Mild-to-Moderate Ulcerative Colitis: A Comparative Study.","authors":"Shaini Suraj, Anand Prakash, Pradeep Patil, Deepa Sangolkar, Nayna Rane","doi":"10.1177/09727531241309758","DOIUrl":"10.1177/09727531241309758","url":null,"abstract":"<p><strong>Background: </strong>Ulcerative colitis (UC) is a chronic condition characterised by inflammation of the large intestine, causing an impact on a patient's psychological well-being. Earlier research has demonstrated the important role of locus of control (LOC) in facing the challenges brought out by many gastrointestinal system diseases.</p><p><strong>Purpose: </strong>The aim of this research is to assess LOC in patients with mild-to-moderate UC as compared to non-UC individuals. This study also explored the impact of various demographic variables: age, gender, education level, type of family, working status, socio-economic status (SES), marital status and region of residence, on LOC among UC patients.</p><p><strong>Methods: </strong>A cross-sectional survey was conducted for a period of two months. The tool used was Multidimensional Health Locus of Control (MHLC). A chi-squared test was used to investigate the LOC among individuals with UC (100 patients) in comparison to a control group of non-UC (100) healthy individuals. The age group was between 30 and 50 years.</p><p><strong>Results: </strong>In the UC group, 31% endorsed an internal LOC, while 40% attributed outcomes to chance, and 29% believed in powerful others. A chi-square test indicated a significant association between LOC and UC, χ²(2) = 38.1, <i>P</i> < .001. These findings suggest that individuals with UC are more likely to attribute outcomes to external factors, such as chance or powerful others, rather than their own actions. A positive effect of SES, region and working status on LOC was seen.</p><p><strong>Conclusion: </strong>The observed tendency towards external LOC highlights the need for targeted interventions aimed at enhancing patients' sense of agency and control over their health. Healthcare professionals can help people with these chronic conditions live better lives and achieve better results by enabling them to actively participate in their health.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241309758"},"PeriodicalIF":1.8,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11815667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143412990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the Visit-to-visit Repeatability of Autonomic Neuropathy Assessment Measures in Healthy Subjects.","authors":"Annie S Jose, Shival Srivastav, Bharati Mehta","doi":"10.1177/09727531241310034","DOIUrl":"10.1177/09727531241310034","url":null,"abstract":"<p><strong>Background: </strong>Autonomic neuropathy assessment is needed for the diagnosis and prognostication of different clinical disorders. Heart rate variability (HRV) and autonomic reactivity assessment by Ewing's battery of tests form the cornerstones of laboratory assessment of cardiac autonomic neuropathy evaluation.</p><p><strong>Purpose: </strong>While these tests are routinely used, there are conflicting reports regarding the visit-to-visit repeatability of these tests. Therefore, we assessed autonomic measures derived using aforementioned tests on multiple visits in healthy subjects.</p><p><strong>Methods: </strong>We enrolled 31 healthy subjects and performed autonomic function evaluation on five visits by assessment of HRV and autonomic reactivity on day 1 forenoon and afternoon, next day, one week later and one month later. Repeatability assessment was evaluated using Intraclass correlation coefficients. Values were defined as moderate, good and excellent based on previously reported criteria.</p><p><strong>Results: </strong>Thirty-one subjects completed all five visits (17 males, 14 females; mean age = 29 ± 5.44 years). While time-domain measures demonstrated good to excellent repeatability, frequency-domain measures were only moderately repeatable. Autonomic reactivity indices also displayed good to excellent repeatability with the exception of blood pressure response to orthostatic challenge which was moderately repeatable.</p><p><strong>Conclusion: </strong>We recommend that sole reliance on frequency domain metrics for HRV assessment should be avoided. HRV indices and autonomic reactivity measures may continue to be used for cardiac autonomic neuropathy assessment.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241310034"},"PeriodicalIF":1.8,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11803598/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suicidal Ideation and Resilience Among Orphan and Non-orphan Adolescents in the Indian City of Pune.","authors":"Tintisha Basu, Pragyan Dangwal, Mahesh Deokar","doi":"10.1177/09727531241312733","DOIUrl":"10.1177/09727531241312733","url":null,"abstract":"<p><strong>Background: </strong>Fostering a healthy upbringing is of utmost importance to an individual and a supportive family system helps them grow holistically. Adolescence is an important stage for an individual to grow and form strong bonds with their peers.</p><p><strong>Purpose: </strong>The objective of the current study was to ascertain the level of self-esteem, resilience and suicidal ideation among orphan and non-orphan adolescents. Gender differences in self-esteem, resilience and suicidal ideation were also studied.</p><p><strong>Method: </strong>A sample of 160 adolescents (80 orphan and 80 non-orphan adolescents) comprising of equal number of male and female participants in the age group of 15-18 years were included in the study. Data was collected from adolescent orphans and non-orphans going to government schools in the urban sector in Pune, Maharashtra.</p><p><strong>Results: </strong>Means, S. Ds, Pearson's correlation and t-test were calculated: Mean resilience score was found to be significantly (<i>P</i> = .048) higher among orphans (129.73 + 29.53) as compared to non-orphans (120.39 + 29.70). Mean self-esteem and suicidal ideation did not vary significantly among orphans and non-orphans. The mean self-esteem score was significantly higher (<i>P</i> = .048) among females (27.61 + 4.09) as compared to males (26.43 + 3.41). There was no significant gender difference in resilience and suicidal ideation scores. The high resilience scores emphasise the need to study ways to enhance well-being among both orphans and non-orphan adolescents to foster a healthy fulfilling upbringing.</p><p><strong>Conclusion: </strong>The study goes on to show that a similar upbringing would foster similar results in individuals, irrespective of their backgrounds. Since self-esteem and suicidal ideation are similar among orphans and non-orphans, further research would help identify the various factors that foster self-esteem and resilience among these adolescents and likewise plan interventions in the future.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241312733"},"PeriodicalIF":1.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11795571/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Targeting the Neuro-vascular Presynaptic Signalling in STROKE: Evidence and Therapeutic Implications.","authors":"Shimantika Maikap, Alexandra Lucaciu, Aheli Chakraborty, Roxane Isabelle Kestner, Rajkumar Vutukuri, Anil Annamneedi","doi":"10.1177/09727531241310048","DOIUrl":"10.1177/09727531241310048","url":null,"abstract":"<p><strong>Background: </strong>Stroke is one of the leading causes of death and long-term adult disability worldwide. Stroke causes neurodegeneration and impairs synaptic function. Understanding the role of synaptic proteins and associated signalling pathways in stroke pathology could offer insights into therapeutic approaches as well as improving rehabilitation-related treatment regimes.</p><p><strong>Purpose: </strong>The current study aims to analyse synaptic transcriptome changes in acute and long-term post-stroke (1 day, 7 day timepoints), especially focusing on pre- and postsynaptic genes.</p><p><strong>Methods: </strong>We performed data mining of the recent mRNA sequence from isolated mouse brain micro-vessels (MBMVs) after transient middle cerebral artery occlusion (tMCAO) stroke model. Using the SynGO (Synaptic Gene Ontologies and annotations) bioinformatics platform we assessed synaptic protein expression and associated pathways, and compared synaptic protein changes at 1 day and 7 day post-stroke.</p><p><strong>Results: </strong>Enrichment analysis of the MBMVs identified significant alterations in the expression of genes related to synaptic physiology, synaptic transmission, neuronal structure, and organisation. We identified that the synaptic changes observed at the 7 day timepoint were initiated by the regulation of specific presynaptic candidates 1 day (24h) post-stroke, highlighting the significance of presynaptic regulation in mediating organising of synaptic structures and physiology. Analysis of transcriptomic data from human postmortem stroke brains confirmed similar presynaptic signalling patterns.</p><p><strong>Conclusion: </strong>Our findings identify the changes in presynaptic gene regulation in micro-vessels following ischaemic stroke. Targeting presynaptic active zone protein signalling could represent a promising therapeutic target in mitigating ischaemic stroke.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241310048"},"PeriodicalIF":1.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11775937/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143063376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Comprehensive Review of Psychosocial, Academic, and Psychological Issues Faced by University Students in India.","authors":"Mubashir Gull, Navneet Kaur, Wael M F Abuhasan, Suneetha Kandi, Sidharth Murali Nair","doi":"10.1177/09727531241306571","DOIUrl":"10.1177/09727531241306571","url":null,"abstract":"<p><strong>Background: </strong>University students confront a wide range of issues during their pursuit of education. Understanding these issues is essential for developing effective treatments and support systems.</p><p><strong>Purpose: </strong>This study aims to delineate the landscape of scholarly literature pertaining to psychosocial, academic, and psychological issues among university students. It further identifies key journals and publishing trends within the fields, thereby significantly contributing to this domain. Additionally, this study outlines the scientific field networks that offer theoretical and conceptual foundations for exploring the psychosocial, academic, and psychological challenges faced by university students. Furthermore, it also intends to systematically categorise various types of problems encountered by university students in India.</p><p><strong>Methods: </strong>To systematically gather and investigate the problems encountered by students in higher education, this study utilises bibliometric analysis, highlighting topics related to mental health. Data were extracted from Scopus and Web of Sciences databases.</p><p><strong>Results: </strong>The analysis of the literature yielded 12 overarching categories related to challenges faced by university students: stress, academic stress, depression, anxiety, internet/ smartphone addiction/ gaming disorder, low self-esteem, loneliness, insomnia, suicidal ideations, eating disorders, drug addiction, adjustment issues.</p><p><strong>Conclusion: </strong>Academic institutions should prioritise student mental health, as it affects academic performance and can lead to psychological disorders. Universities need Guidance and Counselling Cells staffed with professionals to help students manage psychosocial, academic, and psychological challenges.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241306571"},"PeriodicalIF":1.8,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11765307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neurobehavioural Exploration of Breath-counting & Breath-awareness in Novice Indian Meditators: A Naturalised Ānāpānasati-based Paradigmatic Approach.","authors":"Mannu Brahmi, Dushyant Soni, Jyoti Kumar","doi":"10.1177/09727531241308701","DOIUrl":"10.1177/09727531241308701","url":null,"abstract":"<p><strong>Background: </strong>Neural activity and subjective experiences indicate that breath-awareness practices, which focus on mindful observation of breath, promote tranquil calm and thoughtless awareness.</p><p><strong>Purpose: </strong>This study explores the impact of tristage Ānāpānasati-based breath meditation on electroencephalography (EEG) oscillations and self-reported mindfulness states in novice meditators following a period of effortful cognition.</p><p><strong>Methods: </strong>Eighty-nine novice meditators (82 males; Mean Age = 24.59 years) underwent a breath-based meditation intervention consisting of three stages: Resting State (RS), Breath Counting (BC), and Breath Focus (BF). EEG assessed neural oscillatory changes throughout the three stages while providing spectral indices for arousal and cognitive workload (CWL) stagewise. State mindfulness and breath awareness-related self-reported feedback were also collected using the Amsterdam Resting-State Questionnaire (ARSQ) post-BF stage and the curated Breath Count Feedback (BCF) post-BC stage, respectively. The internal reliability and construct validity of the standardised ARSQ and the designed BCF were satisfactorily computed within our sample. A within-subjects cross-sectional neurobehavioural examination of the breath self-regulatory novice experiences was thus conducted.</p><p><strong>Results: </strong>The breath-based intervention significantly increased alpha power across all stages, indicating relaxation. Theta and delta powers increased during BC and BF in the prefrontal cortex (PFC), suggesting enhanced working memory and focused attention. Gamma power in meditation-associated brain regions and occipital beta oscillations showed significant positive correlations with breath counts, reflecting improved visual and attentional concentration. Lower pre-meditative arousal and smaller in-meditation CWL levels were associated with fewer distractions and increased confidence accuracy during BC.</p><p><strong>Conclusion: </strong>The results suggest that BC may serve as a valuable tool for improving present-centric control and concentration, highlighting the importance of managing CWL and arousal levels to optimise meditation outcomes.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241308701"},"PeriodicalIF":1.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11752152/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Angiosome Territories of Vestibulocochlear Nerve (VIII).","authors":"Deepthi Simhadri, Haritha Kanne, Upendra Mallela","doi":"10.1177/09727531241301826","DOIUrl":"10.1177/09727531241301826","url":null,"abstract":"<p><strong>Background: </strong>Taylor and Palmer introduced an angiosome (vascular) concept in reconstructive plastic surgery in 1987. The angiosome is considered a segment of a nerve (cranial or peripheral nerve) supplied by a primary source of blood vessels.</p><p><strong>Purpose: </strong>To observe the arteries supplying the vestibulocochlear nerves (VIII) from the brainstem till their termination. To analyse the neurovascular relationship of the vestibulocochlear nerve.</p><p><strong>Methods: </strong>In total, 45 formalin-fixed cadaveric heads with the base of the skull were studied by dissection and histological methods.</p><p><strong>Results: </strong>At the level of the pontomedullary junction, it is supplied by the anterior inferior cerebellar artery; within the internal acoustic canal, the cochlear nerve is provided by the cochlear artery, the vestibular nerve is supplied by a vestibular artery, which is the fine branch of the labyrinthine artery.</p><p><strong>Conclusion: </strong>Their vascular supply influences the functioning of nerves. The labyrinthine artery is a thin, slender end artery, making it more vulnerable to circulatory disturbances.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241301826"},"PeriodicalIF":1.8,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11752149/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143027940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association Between BMI and Neurocognitive Functions Among Middle-aged Obese Adults: Preliminary Findings Using Machine-learning (ML)-based Approach.","authors":"Dipti Magan, Raj Kumar Yadav, Jitender Aneja, Shivam Pandey","doi":"10.1177/09727531241307462","DOIUrl":"10.1177/09727531241307462","url":null,"abstract":"<p><strong>Background: </strong>Studies suggest that obesity predisposes individuals to developing cognitive dysfunction and an increased risk of dementia, but the nature of the relationship remains largely unexplored for better prognostic predictors.</p><p><strong>Purpose: </strong>This study, the first of its kind in Indian participants with obesity, was intended to explore the use of quantification of different neurocognitive indices with increasing body mass index (BMI) among middle-aged participants with obesity. Additionally, machine-learning models were used to analyse the predictive performance of BMI for different cognitive functions.</p><p><strong>Methods: </strong>In the cross-sectional analytical study, a total of 137 (<i>n</i> = 137) participants were included. Out of the total, 107 healthy obese (BMI = 23.0-30.0 kg m^-2; age between 36 and 55 years of both genders) were recruited from the out-patient department of the Department of Endocrinology and General Medicine, and 30 participants were recruited as the control group, between March 2023 to February 2024. The participants underwent neuropsychological assessments, including mini-mental state examination (MMSE), Montreal cognitive assessment (MoCA) and serum levels of brain-derived neurotrophic factor (BDNF).</p><p><strong>Results: </strong>Significant (<i>p</i> < .05) differences were observed for neurocognitive functions for the obese group versus the control group. According to the correlation heatmaps, BMI was significantly (<i>p</i> < .05) negatively associated with BDNF. Multivariate linear regression analysis revealed a substantial (<i>p</i> < .05) decline in BDNF with a change in BMI, accenting its significant impact on cognitive ageing. Additionally, consistent decreasing trends were observed across the MoCA and MMSE, confirming the robustness of the findings across diverse analytical methodologies. Furthermore, the linear regression model and super vector machine model contributed additional evidence to the consistency of the trends in cognitive decline linked to BMI variations.</p><p><strong>Conclusion: </strong>The preliminary results of the present study support that increased BMI is an important physiological indicator that influences neurocognition and neuroplasticity in individuals with obesity.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241307462"},"PeriodicalIF":1.8,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742150/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142998811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of <i>Bhramari</i> and <i>Sheetali</i> Pranayama on Cardio Respiratory Function in Post-COVID Patients: A Randomised Controlled Study.","authors":"Rohini P, A Saravanan, K Maheshkumar, K ThamaraiSelvi, P Kalyani Praba, Venkataraman Prabhu","doi":"10.1177/09727531241306849","DOIUrl":"10.1177/09727531241306849","url":null,"abstract":"<p><strong>Background: </strong>The COVID-19 pandemic has led to a range of long-term health issues in recovered patients, collectively known as \"post-COVID syndrome.\"</p><p><strong>Purpose: </strong>This study aimed to investigate the effects of combined pranayama techniques, specifically <i>Sheetali</i> and <i>Bhramari</i>, on pulmonary function and heart rate variability in post-COVID patients.</p><p><strong>Methods: </strong>A randomised controlled trial was conducted with 90 post-COVID patients (aged 19-40). Participants were divided into three groups of 30 each: control, <i>Bhramari</i> Pranayama and <i>Sheetali</i> Pranayama. The intervention groups practiced their respective pranayama techniques for 15 minutes twice daily for 6 months. Outcome measures included Pulmonary Function Tests (PFT) and Heart Rate Variability (HRV), assessed at baseline, 3 months and 6 months.</p><p><strong>Results: </strong>At 3 months, both pranayama groups showed moderate improvements in pulmonary function and HRV compared to baseline. By 6 months, these improvements were significantly enhanced. The <i>Bhramari</i> group showed increased FVC from 3.2 ± 0.5 L to 3.5 ± 0.4 L at 3 months, and to 3.7 ± 0.4 L at 6 months (<i>P</i> < .001). Similarly, the <i>Sheetali</i> group reflected improved FVC from 3.3 ± 0.4 L to 3.5 ± 0.3 L at 3 months, reaching 3.7 ± 0.3 L at 6 months (<i>P</i> < .001). HRV measures showed a similar trend, with SDNN and RMSSD in the <i>Bhramari</i> group and <i>Sheetali</i> pranayama group.</p><p><strong>Conclusion: </strong>This study provides novel insights into the combined effects of <i>Bhramari</i> and <i>Sheetali</i> Pranayama on post-COVID patients. The findings suggest significant improvements in respiratory function and autonomic nervous system balance.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241306849"},"PeriodicalIF":1.8,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11726493/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proximal Median Nerve Conduction Velocity Slowing in Carpal Tunnel Syndrome: An Observational Retrospective Study.","authors":"Senthil Kumar Subramanian, Rajathi Rajendran","doi":"10.1177/09727531241306863","DOIUrl":"10.1177/09727531241306863","url":null,"abstract":"<p><strong>Background: </strong>Carpal Tunnel Syndrome (CTS) is the most common entrapment neuropathy, characterised by compression of the median nerve at the wrist. Traditional understanding views CTS as a distal compression issue, but recent evidence suggests potential proximal involvement.</p><p><strong>Purpose: </strong>This study aimed to assess the prevalence of proximal median nerve conduction velocity (CV) slowing in CTS patients and examine its association with CTS severity.</p><p><strong>Methods: </strong>In this retrospective observational study, data were analysed from 80 CTS patients and 40 controls from the Electrophysiology Lab at a tertiary care institute. Nerve conduction studies (NCS) evaluated the median nerve's conduction velocity and latency. Patients were classified by CTS severity, and nerve conduction parameters were statistically compared between groups.</p><p><strong>Results: </strong>CTS patients exhibited significantly prolonged distal motor latency (DML) (5.2 ± 0.8 ms) and reduced forearm motor conduction velocity (MCV) (55.3 ± 4.1 m/s) compared to controls (<i>P</i> < .01). Approximately 27.45% of CTS hands showed proximal median nerve slowing. The severity classification showed that Grade 3 CTS was the most prevalent (47%), followed by Grade 2 (23%) and Grade 1 (10%). There was a negative correlation between distal latency and forearm conduction velocity, suggesting that as distal latency increases, forearm conduction velocity decreases. Post-operatively, significant improvements were observed in distal latency (mean decrease: 1.2 ± 0.5 ms, <i>P</i> < .01), but median nerve conduction velocity remained unchanged. While there was a trend towards improvement in CMAP amplitude, the difference did not reach statistical significance.</p><p><strong>Conclusion: </strong>A subset of CTS cases exhibits reduced proximal median nerve conduction velocity, which correlates with CTS severity. This suggests retrograde degeneration may contribute to CTS pathology, challenging the traditional view of CTS as a purely distal compression disorder.</p>","PeriodicalId":7921,"journal":{"name":"Annals of Neurosciences","volume":" ","pages":"09727531241306863"},"PeriodicalIF":1.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11719419/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142969476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}