Asian journal of neurosurgery最新文献

{"title":"Relationship between Shape Retention and X-ray Absorption Value of the Tip of Microcatheters in Neuroendovascular Treatment.","authors":"Tomotaka Ohshima, Fuminori Ato, Reo Kawaguchi, Naoki Matsuo, Shigeru Miyachi","doi":"10.1055/s-0043-1760850","DOIUrl":"10.1055/s-0043-1760850","url":null,"abstract":"<p><p><b>Objective</b>  We noticed that the X-ray absorption value of the tip of each microcatheter used for aneurysm treatment varied from product to product. We hypothesized that the differences were caused by variations in the metal's density braid, which could be related to the ability of the tip to retain its shape. <b>Methods</b>  The X-ray absorption value of each microcatheter tip was measured. Next, heat forming was performed using a shaping mandrel at 6 mm and 90 degrees to determine whether there was a correlation between the X-ray absorption value and the forming angle. Next, the optimal mandrel angle for forming each microcatheter at 90 degrees was investigated. We also examined the shape retention after 20 times wire insertions into each microcatheter. <b>Conclusion</b>  It was found that the higher the X-ray absorption value, the harder it was for the microcatheter to be formed. The mandrel angle required to form 90 degrees was determined by the X-ray absorption value. The higher the X-ray absorption value, the higher the shape retention of the tip shape. The heat formation and shape-retention conditions of the microcatheter tip were correlated with the X-ray absorption value of the metal braid. Even for unknown microcatheters, the optimum shaping conditions can be inferred from the X-ray absorption value.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"19 1","pages":"52-57"},"PeriodicalIF":0.0,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11093629/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140946802","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 Comparative Retrospective Survival Analysis Study of Brain Tumor Patients in Age Less Than or Equal to 50 Years versus More Than 50 Years of Age.","authors":"Radha Kesarwani, Astha Singh, Mohammad Aqueel, Virendra Singh, Gyan Prakash","doi":"10.1055/s-0043-1777271","DOIUrl":"10.1055/s-0043-1777271","url":null,"abstract":"<p><p><b>Introduction</b>  Approximately 2.5% of fatalities from cancer are caused by brain tumors. Even though there is literature regarding prognostic factor of adult brain tumor, studies often resort to Western demographics. Hence, we conducted this retrospective observational study to compare the demographic characteristics and prognosis in patients of glial tumors in Indian population with histological diagnosis with respect to age. <b>Materials and Methods</b>  A single-center retrospective observational study with 76 patients of glioma who had been treated with surgery combined with radiotherapy with or without chemotherapy was conducted. Group I patients were aged less than or equal to 50 years and group II more than 50 years of age. There were 28 patients in group I and 48 in group II. Postoperatively, external beam radiation therapy was delivered in a conventional fraction (1.8 Gy/fraction, five fractions/week) using telecobalt 60. Ill patients who presented with grade III and IV gliomas received oral chemotherapy temozolomide at a dose of 100 mg daily during course of radiotherapy. <b>Results</b>  The median age of the patients at the time of diagnosis was 45.0 years. More cases of hematologic toxicity occurred in group I than in group II. Total 55 patients were alive at 1-year follow-up (11 in group I and 44 in group II). <b>Conclusion</b>  Grade I and II gliomas were predominant in less than 50 years of age and grade III and IV were predominant in more than 50 years age. Male preponderance was seen in age group of more than 50 years (68%). Overall survival and disease-free survival were better for patients aged less than 50 years.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"777-781"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756844/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072519","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":"Contrast-Induced Encephalopathy after Endovascular Treatment: Two Case Reports.","authors":"Dragan Jankovic, Riki Tanaka, Kento Sasaki, Kyosuke Miyatani, Sachin Chemate, Mayank Nakipuria, Takamitsu Tamura, Fuminari Komatsu, Yasuhiro Yamada, Yoko Kato","doi":"10.1055/s-0043-1776991","DOIUrl":"10.1055/s-0043-1776991","url":null,"abstract":"<p><p>Contrast-induced encephalopathy (CIE) is a rare neurological complication that occurs after the use of contrast medium in various angiographic procedures. Symptoms can be different, from headache to severe neurological deficit and coma. In the articles published to date, symptoms appeared immediately after application of contrast agent or within 24 hours. Here we present two cases of patients in whom CIE developed delayed after endovascular treatment.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"813-817"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072523","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":"Spontaneous Subdural Empyema: A Case Report.","authors":"Deep Dutta, Shameem Ahmed, Abhigyan Borkotoky","doi":"10.1055/s-0043-1777273","DOIUrl":"10.1055/s-0043-1777273","url":null,"abstract":"<p><p>Subdural empyema is the collection of purulent material between the dura mater and arachnoid. Subdural empyema most often occurs due to the direct extension of local infection. But spontaneous subdural empyema is a rare entity. In literature, not many cases of spontaneous subdural empyema by <i>Escherichia coli</i> are reported. Here we report a case of spontaneous subdural empyema along with a review of literature who was previously treated on the suspicion of encephalitis with urinary tract infection and then brought to our hospital.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"823-825"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072529","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":"Posterior Instrumentation of Cervical Spine: A Bibliometric Analysis of Trends in Publication.","authors":"Vishal Kumar, Vikash Raj, Sitanshu Barik, Richa Richa","doi":"10.1055/s-0043-1777274","DOIUrl":"10.1055/s-0043-1777274","url":null,"abstract":"<p><p><b>Aim</b>  The aim of this study was to perform a bibliometric analysis of the articles published on posterior instrumentation of cervical spine and to study the general publishing trends over the years in this topic in terms of journals, authors, topics, keywords, collaborating countries, etc. <b>Material and Methods</b>  Articles were searched on the web of science using appropriate keywords. A bibliometric analysis was performed using Bibliometrix R package <b>Results</b>  A total of 1,953 studies were identified between 1991 and 2023 including 1,782 articles and 171 reviews from 198 sources. A total of 3,421 author's keywords were used by 6,725 authors. Thirty-four documents are single authored. The average co-author per document is 5.63. The average citation per document is 22.62. There is international co-authorship in 13.11% documents. RM Xu and Sonntag VKH have maximum publications ( <i>n</i>  = 28). The \"Spine\" journal has the maximum number of publications ( <i>n</i>  = 335) and best H index of 64. United States has maximum number of publications ( <i>n</i>  = 1,720) and citations ( <i>n</i>  = 19,573). Publication by Harms et al in the \"Spine\" in 2001 has the highest global ( <i>n</i>  = 956) & local ( <i>n</i>  = 272) citations. Three-dimensional printing and atlantoaxial fixation are emerging trends. <b>Conclusion</b>  The findings of this study enhance the knowledge on the topic of posterior instrumentation of cervical spine and shall guide the trends and directions of future research and innovation.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"708-723"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756788/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072527","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":"Postoperative CSF Leak: Blood Patch-A New Avenue.","authors":"Geover Lobo, Sarita R J Lobo","doi":"10.1055/s-0043-1768599","DOIUrl":"10.1055/s-0043-1768599","url":null,"abstract":"<p><p><b>Introduction</b>  Cerebrospinal fluid leak (CSF) after a neurosurgical procedure is a known complication that may result in bad outcomes (1). The incidence of CSF leak varies based on the site involved; it ranges from 4 to 32% for transsphenoidal to posterior fossa procedures. The costs involved in treating postoperative CSF leaks increases exponentially that becomes a barrier in continuing optimum treatment. There are many studies that compare the different treatment modalities and even use of sealing agents but none give an algorithm of management. Our study aims at known technique that can help to treat these kinds of low-pressure CSF leaks. <b>Materials and Methods</b>  This was a prospective study done over a period of 5 years from January 2014 to January 2019. All patients who underwent procedures in which durotomy was done were included in the study. <b>Results</b>  A total of six patients were enrolled for the study. The duration of the study spanned 5 years from January 2014 to January 2019. All the patients after taking informed consent underwent the necessary investigations and a blood patch was done. Five of the patients the CSF stopped but in one patient it persisted. This patient again underwent investigation and under image guidance another blood patch was put after which the CSF leak stopped. <b>Conclusion</b>  Blood patch under imaging guidance is a safe and simple technique. The success rates of cessation of CSF leaks are good. Also, it is a cost-effective method using an autograft (patient's blood).</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"761-763"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756804/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072571","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":"Atlantoaxial Instability with Persistent Second Intersegmental Artery.","authors":"Batuk Diyora, Ravi Wankhade, Kavin Devani, Anup Purandare, Prakash Palave, Sagar Gawali","doi":"10.1055/s-0043-1776050","DOIUrl":"10.1055/s-0043-1776050","url":null,"abstract":"<p><p>Understanding the anatomy of the vertebral artery is essential while manipulating the craniovertebral joint during surgery. Its anomalous course in congenital atlantoaxial dislocation makes it more vulnerable to injury. Preoperative dedicated computed tomography (CT) angiography helps identify the artery's position and plan for surgical procedure. A 13-year-boy presented with neck pain and spastic quadriparesis for 1 year. Radiological imaging of the craniovertebral junction revealed atlantoaxial instability with basilar invagination. His CT angiography of neck and brain vessels revealed an anomalous course of the vertebral artery due to a persistent second intersegment artery. He underwent posterior atlantoaxial fixation after mobilization of the vertebral artery. His clinical condition significantly improved after surgery. We report a case of management of an atlanto axial dislocation with persistent second intersegment artery and describe the role of vertebral artery mobilization during surgery.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"805-809"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756845/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072521","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 Case-Based Review of Management of CNS Melioidosis.","authors":"Debajyoti Datta, Arunkumar Sekar, Ashis Patnaik, Srujana Mohanty","doi":"10.1055/s-0043-1776736","DOIUrl":"10.1055/s-0043-1776736","url":null,"abstract":"","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"836-838"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756835/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072518","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":"Circular Configuration of Torcular Herophili Presenting as Childhood Headache: 2D Computational Fluid Dynamic Analysis with a Proposed Mechanism.","authors":"Debajyoti Datta, Arunkumar Sekar, Ashis Patnaik","doi":"10.1055/s-0043-1776301","DOIUrl":"10.1055/s-0043-1776301","url":null,"abstract":"<p><p>This case report presents a rare anatomical variant of the torcular Herophili, characterized by a circular configuration and the absence of the left transverse sinus. A 12-year-old child presented with intermittent holocranial headaches, and imaging revealed the circular torcular Herophili along with mild ventricular enlargement. The straight sinus drained into the left side of the circular torcular Herophili. Following lumbar puncture and cerebrospinal fluid (CSF) drainage, the child experienced symptom improvement. During a 6-month follow-up, the patient remained asymptomatic, without further headaches or academic disruptions. Similar to a previously reported case, the circular torcular Herophili with unilateral absent transverse sinus may be associated with impaired CSF absorption due to altered blood flow through abnormal venous anatomy. We performed two-dimensional computational fluid dynamic analysis of simulated flow through a synthetic model and showed that this circular configuration is associated with venous stasis. The venous stasis in the sinus may impair CSF absorption through the arachnoid granulations causing hydrocephalus and explaining the headache. Close monitoring and follow-up are recommended for patients with this variant. Further investigation is needed to better understand the clinical implications and underlying mechanisms of such torcular Herophili variations.</p>","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"769-772"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756849/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072522","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":"RoboticScope-Assisted Microanastomosis in a Chicken Leg Model.","authors":"Adi Ahmetspahic, Eldin Burazerovic, Dragan Jankovic, Eleonora Kujaca, Hana Rizvanovic, Ibrahim Omerhodzic, Haso Sefo, Nermir Granov","doi":"10.1055/s-0043-1776794","DOIUrl":"10.1055/s-0043-1776794","url":null,"abstract":"<p><p><b>Background</b>  Many recent studies show that exoscopes are safe and effective alternatives to operating microscopes (OM). Developments of robotics and automation are present in neurosurgery with the appearance of a newer device such as RoboticScope (RS) exoscope with a digital three-dimensional (3D) image and a head-mounted display. The body of the RS is connected to a six-axis robotic arm that contains two video cameras, and serves as stereovision. This robotic arm allows accurate 3D camera motions over the field of view, giving the user a great degree of freedom in viewpoint selection. The surgeons may specify the direction and speed of the robotic arm using simple head movements when the foot pedal is pressed. Since its development in 2020, the RS has occasionally been used in neurosurgery for a multitude of procedures. <b>Methods</b>  This study showcases vessel microanastomosis training on chicken legs using the RS. The aim of this study is to demonstrate the feasibility of the RS without a comparative analysis of the standard OM. The study was conducted in 2023 during a month-long trial period of the device at the Department of Neurosurgery of the Clinical Center of the University of Sarajevo. All procedures including RS-assisted anastomosis were performed by a neurosurgeon in anastomosis training (A.A.) supervised by a senior vascular neurosurgeon (E.B.). For the purpose of the study, we evaluated occlusion time in minutes, bypass patency with iodine, and overall satisfaction of the trainee in terms of light intensity, precision of automatic focus, mobility of the device, ergonomics, and convenience of the helmet. <b>Results</b>  Ten RS-assisted microanastomoses were performed by interrupted suturing technique with 10.0 nylon thread. Bypass training included seven \"end-to-side,\" two \"end-to-end,\" and one \"side-to-side\" microanastomoses. The smallest vessel diameter was 1 mm. Occlusion time improved by training from 50 to 24 minutes, with contrast patency of the anastomoses in all cases without notable leakage of the contrast, except one case. Complete satisfaction of the trainee was achieved in 7 out of 10 cases. During this period, we also performed different RS-assisted surgeries including a single indirect bypass, convexity brain tumor resection, and microdiscectomies. <b>Conclusion</b>  RS provides a new concept for microanastomosis training as an alternative or adjunct to the standard microscope. We found a full-time hands-on microsuturing without the need for manual readjustment of the device as an advantage as well as instant depth at automatic zooming and precise transposition of the focus via head movements. However, it takes time to adapt and get used to the digital image. With the evolution of the device helmet's shortcomings, the RS could represent a cutting-edge method in vessel microanastomosis in the future. Nevertheless, this article represents one of the first written reports on microanastomosis training on an an","PeriodicalId":94300,"journal":{"name":"Asian journal of neurosurgery","volume":"18 4","pages":"782-789"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10756782/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139072528","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}