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Standardizing the large-volume "tap test" for evaluating idiopathic normal pressure hydrocephalus: a systematic review.
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2025-02-01 DOI: 10.23736/S0390-5616.24.06368-9
Brent Bluett, Lealani M Acosta, Elissa Ash, Bastiaan R Bloem, Alberto J Espay, Amtul Farheen, Alfonso Fasano, Alissa Higinbotham, Joachim K Krauss, Anthony E Lang, Giovanni Mostile, Iciar Aviles-Olmos, Andrea Quattrone, Philip W Tipton, David F Tang-Wai
{"title":"Standardizing the large-volume \"tap test\" for evaluating idiopathic normal pressure hydrocephalus: a systematic review.","authors":"Brent Bluett, Lealani M Acosta, Elissa Ash, Bastiaan R Bloem, Alberto J Espay, Amtul Farheen, Alfonso Fasano, Alissa Higinbotham, Joachim K Krauss, Anthony E Lang, Giovanni Mostile, Iciar Aviles-Olmos, Andrea Quattrone, Philip W Tipton, David F Tang-Wai","doi":"10.23736/S0390-5616.24.06368-9","DOIUrl":"https://doi.org/10.23736/S0390-5616.24.06368-9","url":null,"abstract":"<p><strong>Introduction: </strong>Idiopathic normal pressure hydrocephalus (iNPH) is characterized by the clinical triad of gait, cognitive, and urinary dysfunction associated with ventriculomegaly on neuroimaging. Clinical evaluation before and after CSF removal via large volume lumbar puncture (the \"tap test\") is used to determine a patient's potential to benefit from shunt placement. Although clinical guidelines for iNPH exist, a standardized protocol detailing the procedural methodology of the tap test is lacking.</p><p><strong>Evidence acquisition: </strong>Using PRISMA guidelines, a systematic review of PubMed and Embase identifying studies of the tap test in iNPH was performed, centered on four clinical questions (volume of CSF to remove, type of needle for lumbar puncture, which clinical assessments to utilize, and timing of assessments). A modified Delphi approach was then applied to develop a consensus standardized tap test protocol for the evaluation of idiopathic normal pressure hydrocephalus.</p><p><strong>Evidence synthesis: </strong>Two hundred twenty-two full-text articles encompassing a total of 80,322 participants with iNPH met eligibility and were reviewed. Variations in the tap test protocol resulted in minimal concordance among studies. A standardized protocol of the tap test was iteratively developed over a two-year period by members of the International Parkinson and Movement Disorders Society Normal Pressure Hydrocephalus Study Group until expert consensus was reached.</p><p><strong>Conclusions: </strong>The literature shows significant variability in the procedural methodology of the tap test. The proposed protocol was subsequently developed to standardize clinical management, improve patient outcomes, and better align future research in idiopathic normal pressure hydrocephalus.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":"69 1","pages":"46-63"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567433","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}
引用次数: 0
Treatment of iNPH: novel insights.
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2025-02-01 DOI: 10.23736/S0390-5616.24.06360-4
Eric Schmidt, Joachim K Krauss
{"title":"Treatment of iNPH: novel insights.","authors":"Eric Schmidt, Joachim K Krauss","doi":"10.23736/S0390-5616.24.06360-4","DOIUrl":"https://doi.org/10.23736/S0390-5616.24.06360-4","url":null,"abstract":"<p><p>This review advocates for a shift from traditional symptom-based diagnosis of idiopathic normal pressure hydrocephalus (iNPH) to a deeper investigation into its underlying pathophysiological mechanisms, particularly the role of altered cerebral hydrodynamics as an important pathological hallmark. We explore the heterogeneity of iNPH, emphasizing its frequent overlap and cooccurrence with neurodegenerative conditions like Alzheimer and Parkinson disease, and subcortical vascular encephalopathy, complicating diagnosis and treatment strategies. The lumbar infusion test emerges as a useful diagnostic tool, offering quantitative insights into CSF outflow resistance that should be considered as a useful biomarker related to cerebral hydrodynamics and iNPH pathophysiology. Furthermore, we propose the hypothesis that shunt placement, by regulating brain fluid mechanics, may also serve as a form of neuromodulation, potentially enhancing neuronal function and mitigating clinical symptoms. This review advocates for an interdisciplinary, physics-based and patient-centered approach that emphasizes early detection, accurate diagnostics, and personalized treatment plans to enhance patient outcomes and quality of life, particularly in the aging population.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":"69 1","pages":"79-91"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567435","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}
引用次数: 0
Classification of unilateral thalamic gliomas predicts tumor resection and patient's survival: a single center retrospective study. 单侧丘脑胶质瘤的分类可预测肿瘤切除率和患者生存率:一项单中心回顾性研究。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2025-02-01 Epub Date: 2022-04-13 DOI: 10.23736/S0390-5616.22.05660-0
Tianshi Que, Zhiyong Li, Haojie Zheng, Jian-Er Tan, Xi Yuan, Guozhong Yi, Luxiong Fang, Jing Nie, Yanyi Yin, Haiyan Xu, Xiaoxuan Zheng, Junlu Liu, Xi-An Zhang, Songtao Qi, Guanglong Huang
{"title":"Classification of unilateral thalamic gliomas predicts tumor resection and patient's survival: a single center retrospective study.","authors":"Tianshi Que, Zhiyong Li, Haojie Zheng, Jian-Er Tan, Xi Yuan, Guozhong Yi, Luxiong Fang, Jing Nie, Yanyi Yin, Haiyan Xu, Xiaoxuan Zheng, Junlu Liu, Xi-An Zhang, Songtao Qi, Guanglong Huang","doi":"10.23736/S0390-5616.22.05660-0","DOIUrl":"10.23736/S0390-5616.22.05660-0","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to propose our classification about unilateral thalamic gliomas, and to describe relationship between the classification and clinical characteristics including symptoms, surgical approaches and survival, which should contribute to the treatment and the prognostic prediction of unilateral thalamic gliomas.</p><p><strong>Methods: </strong>A total of 66 adult unilateral thalamic glioma patients with pathologic confirmation between January 2010 and December 2018 were retrospectively investigated.</p><p><strong>Results: </strong>Unilateral thalamic gliomas could be divided into quadrigeminal cistern and ventricle extension type (type Q), lateral type (type L) and anterior type (type A) according to tumor location, extensive polarity and location of ipsilateral posterior limb of internal capsule. Each subtype of QLA classification could match with one kind of corresponding approach. Preoperative symptoms including headache, dyskinesia, aphasia, hydrocephalus and KPS scores, and pathological features including H3K27M mutation and P53 expression were correlated with QLA classification. Further analysis confirmed that type Q tumors had a higher rate of total resection and a significantly longer survival time compared to type L and type A tumors, with similar improved and deteriorated rates of symptoms. Univariate and multivariate analysis demonstrated QLA classification was remarkedly associated with overall survival and could be considered as an independent prognostic factor in patients with unilateral thalamic gliomas.</p><p><strong>Conclusions: </strong>Unilateral thalamic glioma could be divided into 3 subtypes by imaging characteristics, symptoms and survival. QLA classification could predict tumor resection and the prognosis and could contribute to the planning of therapeutic strategy in patients with unilateral thalamic gliomas.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":"111-122"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9308213","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}
引用次数: 0
Suspected and surgically managed cauda equina syndrome nationwide: epidemiological trends and socioeconomic factors influencing access to care. 全国疑似马尾综合征及手术治疗情况:流行病学趋势及影响就医的社会经济因素。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-17 DOI: 10.23736/S0390-5616.24.06300-8
Thomas M Johnstone, Vaibhavi Shah, Ghani Haider, Kelly H Yoo, Martin N Stienen, Anand Veeravagu
{"title":"Suspected and surgically managed cauda equina syndrome nationwide: epidemiological trends and socioeconomic factors influencing access to care.","authors":"Thomas M Johnstone, Vaibhavi Shah, Ghani Haider, Kelly H Yoo, Martin N Stienen, Anand Veeravagu","doi":"10.23736/S0390-5616.24.06300-8","DOIUrl":"https://doi.org/10.23736/S0390-5616.24.06300-8","url":null,"abstract":"<p><strong>Background: </strong>Cauda equina syndrome (CES) is a critical condition requiring timely intervention to prevent severe morbidity. This study investigates the epidemiology and socioeconomic factors influencing access to CES care in USA Emergency Departments.</p><p><strong>Methods: </strong>Data was used from the Nationwide Emergency Department Sample (NEDS) from 2016-2020. Encounters for patients presenting with suspected CES were queried using ICD 10 codes. Incidence estimates for suspected and surgically managed CES were constructed. Encounter characteristics were tabulated to describe aspects of a typical CES presentation to a USA ED. Multivariable regression analysis ascertained the impact of hospital and socioeconomic features on in-hospital mortality, surgical management, length of stay, visit costs, and patient transfer.</p><p><strong>Results: </strong>The incidences of suspected and surgically managed CES rose year-by-year (P=0.006; P=0.005). Uninsured patients (P<0.001) and African American (P=0.002) were less likely to be admitted for care. Patients residing in the wealthiest quartile of zip codes were more likely to be admitted for care (P<0.001). In addition, uninsured (P=0.017) and African American patients (P=0.009) were less likely to receive surgical management of suspected CES. Lastly, uninsured (P<0.001), Hispanic (P=0.038), and rurally located patients (P=0.007) were more likely to be transferred, while patients residing in the wealthiest zip codes (P=0.007) were less likely to be transferred.</p><p><strong>Conclusions: </strong>Socioeconomic factors like race, income, insurance, and residence potentially alter CES management, which may inform health policy and future patient care.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142837072","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}
引用次数: 0
Comparing survival and outcomes in isolated versus polytrauma-associated TBI: a retrospective cohort study. 比较孤立性创伤性脑损伤与多发性创伤性脑损伤的存活率和预后:一项回顾性队列研究。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-17 DOI: 10.23736/S0390-5616.24.06287-8
Davide Corbella, Rosalia Zangari, Francesco Biroli, Stefano Magnone, Gaia Cavalleri, Maurizio Passoni, Svetlana Martchenko, Silvia Marchesi, Lucia Zacchetti, Francesco Ferri, Laura Urbaz, Marco Aliprandi, Luca F Lorini, Paolo Gritti
{"title":"Comparing survival and outcomes in isolated versus polytrauma-associated TBI: a retrospective cohort study.","authors":"Davide Corbella, Rosalia Zangari, Francesco Biroli, Stefano Magnone, Gaia Cavalleri, Maurizio Passoni, Svetlana Martchenko, Silvia Marchesi, Lucia Zacchetti, Francesco Ferri, Laura Urbaz, Marco Aliprandi, Luca F Lorini, Paolo Gritti","doi":"10.23736/S0390-5616.24.06287-8","DOIUrl":"https://doi.org/10.23736/S0390-5616.24.06287-8","url":null,"abstract":"<p><strong>Background: </strong>One in four patients with moderate to severe traumatic brain injury (TBI) also has other body district injuries (OBD). The impact of OBD on mortality and disability is debated. This study compared outcomes of TBI patients with polytrauma (p-TBI) versus isolated TBI (alone-TBI) and identified outcome determinants, focusing on survival time and prognosis.</p><p><strong>Methods: </strong>This single-center, retrospective cohort study analyzed 193 patients with moderate to severe TBI admitted to an ICU from 2011 to 2012. Patients were divided into p-TBI and alone-TBI groups. Clinical, demographic, and outcome data were extracted from medical records. Key outcomes included survival time and Glasgow Outcome Scale-Extended (GOSE) scores at 1-year.</p><p><strong>Results: </strong>The alone-TBI group (N.=126) was older with more comorbidities and higher use of antiplatelet/anticoagulant medications. The p-TBI group (N.=67) had greater physiological dysfunction (hypotension, acidosis, anemia, coagulopathy). Trauma severity (Glasgow Coma Scale), in-hospital mortality, and GOSE were similar between groups, but p-TBI patients had a shorter median survival time (3.5 vs. 18 days, P=0.016). Key determinants of poor outcomes were age, coagulopathy, neurological impairment at admission, and intracranial hypertension.</p><p><strong>Conclusions: </strong>Polytrauma does not appear to be independently associated with the prognosis of moderate to severe TBI patients but is associated with earlier mortality. Coagulopathy and physiological instability are more critical factors in determining mortality and poor outcomes. Future research should explore whether polytrauma is a bystander in TBI or if it has a causal role in adverse outcomes.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142837064","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}
引用次数: 0
Improving the metric of surgical freedom in the laboratory based on a novel concept of volume. 基于体积的新概念,改进实验室中手术自由度的度量。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-01 Epub Date: 2023-02-21 DOI: 10.23736/S0390-5616.23.05988-X
Lena Mary Houlihan, David Naughton, Thanapong Loymak, Jubran H Jubran, Michael G O'Sullivan, Michael T Lawton, Mark C Preul
{"title":"Improving the metric of surgical freedom in the laboratory based on a novel concept of volume.","authors":"Lena Mary Houlihan, David Naughton, Thanapong Loymak, Jubran H Jubran, Michael G O'Sullivan, Michael T Lawton, Mark C Preul","doi":"10.23736/S0390-5616.23.05988-X","DOIUrl":"10.23736/S0390-5616.23.05988-X","url":null,"abstract":"<p><strong>Background: </strong>In laboratory-based neuroanatomical studies, surgical freedom, the most important metric of instrument maneuverability, has been based on Heron's formula. Inaccuracies and limitations hinder this study design's applicability. A new methodology, volume of surgical freedom (VSF), may produce a more realistic qualitative and quantitative representation of a surgical corridor.</p><p><strong>Methods: </strong>Overall, 297 data set measurements assessing surgical freedom were completed for cadaveric brain neurosurgical approach dissections. Heron's formula and VSF were calculated specifically to different surgical anatomical targets. Quantitative accuracy and the results of an analysis of human error were compared.</p><p><strong>Results: </strong>Heron's formula for irregularly shaped surgical corridors resulted in overestimation of the respective areas (minimum overestimation 31.3%). In 92% (188/204) of data sets reviewed for influence of offset, areas calculated on the basis of measured data points were larger than areas calculated on the basis of the translated best-fit plane points (mean [SD] overestimation of 2.14% [2.62%]). Variability in the probe length attributable to human error was small (mean [SD] calculated probe length 190.26 mm [5.57 mm]).</p><p><strong>Conclusions: </strong>VSF is an innovative concept that can develop a model of a surgical corridor producing better assessment and prediction of the ability to maneuver and manipulate surgical instruments. VSF corrects for deficits in Heron's method by generating the correct area for an irregular shape using the shoelace formula, adjusting the data points to account for offset, and attempting to correct for human error. VSF produces 3-dimensional models and, therefore, is a preferable standard for assessing surgical freedom.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":"676-685"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9295660","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}
引用次数: 0
Significantly higher expression of high-mobility group AT hook protein 2 (HMGA2) in the border zone of glioblastoma. 高迁移率组AT钩蛋白2 (HMGA2)在胶质母细胞瘤边缘区表达显著升高。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-01 Epub Date: 2023-03-29 DOI: 10.23736/S0390-5616.22.05903-3
Amin I Nohman, Frank P Schwarm, Marco Stein, Anne Schänzer, Christian Koch, Eberhard Uhl, Malgorzata Kolodziej
{"title":"Significantly higher expression of high-mobility group AT hook protein 2 (HMGA2) in the border zone of glioblastoma.","authors":"Amin I Nohman, Frank P Schwarm, Marco Stein, Anne Schänzer, Christian Koch, Eberhard Uhl, Malgorzata Kolodziej","doi":"10.23736/S0390-5616.22.05903-3","DOIUrl":"10.23736/S0390-5616.22.05903-3","url":null,"abstract":"<p><strong>Background: </strong>High-mobility group AT-hook protein 2 (HMGA2) is a gene regulatory protein that is correlated with metastatic potential and poor prognosis. It has been shown that HMGA2 is overexpressed in various tumors such as lung cancer or pancreatic cancer. The invasive character and highly aggressive structure of glioblastoma let us to investigate HMGA2 expression in the border zone of the tumor more closely. We compared HMGA2 expression between glioblastoma and normal brain tissue. In addition, we analyzed and compared HMGA2 expression in the border and center zones of tumors. Correlation tests between HMGA expression and clinical parameters such as MGMT-status and survival were performed.</p><p><strong>Methods: </strong>Samples from 23 patients with WHO grade 4 glioblastomas were analyzed for HMGA2 expression using quantitative real-time polymerase chain reaction (qPCR) and immunohistochemistry (IHC) and correlated with clinical parameters. The areas from the tumor center and border were analyzed separately. Two normal brain tissue specimens were used as the controls.</p><p><strong>Results: </strong>Our results confirm that HMGA2 is higher expressed in glioblastoma compared to healthy brain tissue (qPCR, P=0.013; IHC, P=0.04). Moreover, immunohistochemistry revealed significantly higher HMGA2 expression in the border zone of the tumor than in the tumor center zone (P=0.012). Survival analysis revealed a tendency for shorter survival when HMGA2 was highly expressed in the border zone.</p><p><strong>Conclusions: </strong>The results reveal an overexpression of HMGA2 in the border zone of glioblastomas; thus, the expression cluster of HMGA2 seems to be heterogenous and thorough borough surgical resection of the vital and aggressive border cells might be important to inhibit the invasive character of the tumor.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":"668-675"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9193020","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}
引用次数: 0
Application of electromagnetic disturbance technology in predicting ventriculoperitoneal shunt dependency after aneurysm-associated subarachnoid hemorrhage. 电磁干扰技术在预测动脉瘤相关性蛛网膜下腔出血后脑室-腹腔分流依赖中的应用。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-01 Epub Date: 2023-05-09 DOI: 10.23736/S0390-5616.22.05664-8
Lanjuan Xu, Fen Mei, Haorun Huang, Meiqi Liu, Jiawen Tan, Haoxin Liang, Bo Yang, Yun Bao
{"title":"Application of electromagnetic disturbance technology in predicting ventriculoperitoneal shunt dependency after aneurysm-associated subarachnoid hemorrhage.","authors":"Lanjuan Xu, Fen Mei, Haorun Huang, Meiqi Liu, Jiawen Tan, Haoxin Liang, Bo Yang, Yun Bao","doi":"10.23736/S0390-5616.22.05664-8","DOIUrl":"10.23736/S0390-5616.22.05664-8","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to evaluate the predictive power of electromagnetic disturbance technology in patients with hydrocephalus after subarachnoid hemorrhage.</p><p><strong>Methods: </strong>This prospective, observational cohort study was conducted at The First Affiliated Hospital of Zhengzhou University and Nanfang Hospital. A total of 155 patients with subarachnoid hemorrhage (SAH) were enrolled in this study. Disturbance coefficients were recorded using a continuous sinusoidal signal in real time after SAH. The patients were divided into two groups: hydrocephalus group (patients who underwent shunt insertion within a month after SAH) and non-hydrocephalus group (patients without need for a ventriculoperitoneal shunt). We used SPSS to draw a ROC Curve to assess the ability of disturbance coefficients to predict the probability of hydrocephalus.</p><p><strong>Results: </strong>Hydrocephalus occurred in 37 patients after SAH. The average disturbance coefficient of patients with hydrocephalus decreased by 25.14±9.78, and the disturbance coefficient of patients with no hydrocephalus decreased by 6.58±10.10 (one aspect of the present invention is a system of non-invasively monitoring hydrocephalus, cerebral edema, and intracranial bleeding comprising of a source emitting electromagnetic waves to brain tissue, a detector detecting said wave that propagates through said tissue, a signal conditioning unit amplifying and filtering said wave, a quadrature detector estimating magnitude and phases of said wave, and a parameter estimator calculating the complex wave number, relative attenuation coefficient (RAC), relative phase shift (RPS), wave speed change (WSC), and travel-time difference (TTD) of said brain, and assessing status of hydrocephalus and cerebral edema). The difference was statistically significant (t=9.825, P<0.001). The decrease in disturbance coefficient can be used to predict the occurrence of hydrocephalus, and if the disturbance coefficient decreases by more than 15.5 (sensitivity, 92.37%; specificity, 86.49%), it can be used to indicate the occurrence of hydrocephalus.</p><p><strong>Conclusions: </strong>The disturbance coefficient can predict the occurrence of hydrocephalus. The greater decline of the disturbance coefficient, the greater probability of occurrence of intracranial hydrocephalus. Hydrocephalus can be early detected. However, the CT scan is necessary to confirm the occurrence of hydrocephalus. Early diagnosis and early treatment may improve the prognosis of patients with hydrocephalus after subarachnoid hemorrhage.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":"686-690"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9432925","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}
引用次数: 0
The role of MRgFUS in the treatment of neuropsychiatric disorders: a state of the art. MRgFUS 在治疗神经精神疾病中的作用:最新进展。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-01 Epub Date: 2024-08-05 DOI: 10.23736/S0390-5616.24.06306-9
Benedetta M Campisi, Roberta Costanzo, Manfredi Noto, Giuseppe P Cipollina, Silvia Marino, Giuseppe DI Lorenzo, Lapo Bonosi, Lara Brunasso, Domenico G Iacopino, Rosario Maugeri
{"title":"The role of MRgFUS in the treatment of neuropsychiatric disorders: a state of the art.","authors":"Benedetta M Campisi, Roberta Costanzo, Manfredi Noto, Giuseppe P Cipollina, Silvia Marino, Giuseppe DI Lorenzo, Lapo Bonosi, Lara Brunasso, Domenico G Iacopino, Rosario Maugeri","doi":"10.23736/S0390-5616.24.06306-9","DOIUrl":"10.23736/S0390-5616.24.06306-9","url":null,"abstract":"<p><strong>Introduction: </strong>Magnetic resonance-guided focused ultrasound (MRgFUS) is a contemporary non-invasive ablative procedure that utilizes high- or low-intensity ultrasound, guided and monitored by magnetic resonance imaging (MRI). While MRgFUS has been established as an effective treatment for conditions like essential tremor and tremor-dominant Parkinson's disease, it has recently emerged as a safe and promising ablative minimally invasive procedure for the management of treatment-resistant psychiatric disorders. Indeed, despite the availability of various pharmacological and behavioral therapies, a subset of psychiatric patients remains refractory to conventional treatments.</p><p><strong>Evidence acquisition: </strong>To assess the feasibility and safety of MRgFUS in psychiatric disorders, a comprehensive literature search in PubMed and Scopus databases was conducted, resulting in the inclusion of five relevant articles in this review.</p><p><strong>Evidence synthesis: </strong>While data on this innovative procedure are still limited, MRgFUS demonstrates potential as a safer and less invasive surgical technique for treating these disorders.</p><p><strong>Conclusions: </strong>Continued research efforts and data validation are imperative to establish MRgFUS as an additional, minimally invasive procedure for treatment-resistant psychiatric patients in the near future.</p>","PeriodicalId":16504,"journal":{"name":"Journal of neurosurgical sciences","volume":" ","pages":"660-667"},"PeriodicalIF":1.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141889495","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}
引用次数: 0
Roxadustat protects oxidative stress and tissue injury in the brain induced by ischemic stroke via the HIF-1α/NRF2 axis. 罗沙司他通过HIF-1α/NRF2轴保护缺血性中风引起的脑氧化应激和组织损伤。
IF 1.3 4区 医学
Journal of neurosurgical sciences Pub Date : 2024-12-01 Epub Date: 2024-10-28 DOI: 10.23736/S0390-5616.24.06329-X
Keping Jiao, Huiqin Zhang, Bin Li, Yanyan Wang, Jian Liu
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