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Hamade YJ, Dharnipragada R, Chen CC. The ClearPoint Array Frame: An MRI Compatible System that Supports Non-craniotomy, Multi-trajectory (NCMT) Stereotactic Procedures. World Neurosurg 2024; 184:e754-e764. [PMID: 38350598 DOI: 10.1016/j.wneu.2024.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/15/2024]
Abstract
BACKGROUND With continued evolution in stereotactic techniques and an expanding armamentarium of surgical therapeutic options, non-craniotomy stereotactic procedures in neuro-oncology are becoming increasingly complex, often requiring multi-trajectory approaches. Here we demonstrate that the ClearPoint SmartFrame Array (Solana Beach, California, USA), a second-generation magnetic resonance imaging-compatible stereotactic frame, supports such non-craniotomy, multi-trajectory (NCMT) stereotactic procedures. METHODS We previously published case reports demonstrating the feasibility of NCMT through the ClearPoint SmartFrame Array. Here we prospectively followed the next 10 consecutive patients who underwent such multi-trajectory procedures to further establish procedural safety and clinical utility. RESULTS Ten patients underwent complex, multi-trajectory stereotactic procedures, including combinations of needle biopsy ± cyst drainage and laser interstitial thermal therapy targeting geographically distinct regions of neoplastic lesions under the same anesthetic event. The median maximal radial error of stereotaxis was 1.0 mm. In all cases, definitive diagnosis was achieved, and >90% of the intended targets were ablated. The average stereotaxis time for the multi-trajectory procedure was 119 ± 22.2 minutes, comparing favorably to our previously published results of single-trajectory procedures (80 ± 9.59 minutes, P = 0.125). There were no procedural complications. Post-procedure, the neurologic condition of 1 patient improved, while the remaining 9 patients remained stable. All patients were discharged home, with a median hospital stay of 1 day (range: 1-12 days). With a median follow-up of 376 days (range: 155-1438 days), there were no 30-day readmissions or wound complications. CONCLUSIONS Geographically distinct regions of brain cancer can be safely and accurately accessed through the ClearPoint Array frame in NCMT stereotactic procedures.
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Affiliation(s)
- Youssef J Hamade
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Rajiv Dharnipragada
- University of Minnesota Medical School, University of Minnesota Twin-Cities, Minneapolis, Minnesota, USA
| | - Clark C Chen
- Department of Neurosurgery, Warren Alpert School of Medicine, Rhode Island Hospital, Brown University, Providence, Rhode Island, USA.
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Marín-Castañeda LA, Armas-Salazar A, González-Salido J, Cid-Rodriguez FX, Lee Á, Carrillo-Ruiz JD. The 100 Most Cited Articles on Functional Neurosurgery in Latin America: A Scientometric Analysis. World Neurosurg 2024; 184:303-309.e8. [PMID: 38280629 DOI: 10.1016/j.wneu.2024.01.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/29/2024]
Abstract
Significant progress has been made in Stereotactic and Functional Neurosurgery (SFN) within Latin America (LATAM), which can be attributed to the rapid advancements in technology and a growing pool of expertise. However, despite the growing importance of this field, a comprehensive scientometric analysis of LATAM contributions is still lacking. The aim of this study is to shed light on the top-cited articles in the field authored by LATAM researchers. A search of the Scopus database was performed using specific keywords in the field of SFN to retrieve the top 100 most cited articles. Only those with LATAM affiliation for the first or corresponding position were included. The 100 top-cited articles were published between 1978 and 2019 across 47 different journals. On average, these articles had a citation count of 97.2 citations. A total of 635 LATAM authors were identified, including 145 women. Notably, the 5 most productive and impactful authors were Velasco F., Velasco M., Velasco A.L., Cukiert A., and Jiménez F. Within the field of SFN, epilepsy accounted for 47% of the documents, while the remaining 53% encompassed research on psychiatric diseases, movement disorders, translational research, pain, and electrical mapping. Epilepsia emerged as the journal with the highest number of articles. Mexico and Brazil contributed the most articles, with the University of São Paulo and the Hospital General de Mexico being the most productive institutions. This scientometric analysis highlights the impactful research contributions from the region, identifies influential authors and institutions, and emphasizes the necessity for additional collaboration and exploration.
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Affiliation(s)
- Luis A Marín-Castañeda
- Unit for Stereotactic and Functional Neurosurgery, General Hospital of Mexico, Mexico City, Mexico; La Salle University School of Medicine, Mexico City, Mexico
| | - Armando Armas-Salazar
- Unit for Stereotactic and Functional Neurosurgery, General Hospital of Mexico, Mexico City, Mexico; Postgraduate Department, School of Higher Education in Medicine, National Polytechnic Institute, Mexico City, Mexico
| | | | - Fátima X Cid-Rodriguez
- Unit for Stereotactic and Functional Neurosurgery, General Hospital of Mexico, Mexico City, Mexico; Postgraduate Department, School of Higher Education in Medicine, National Polytechnic Institute, Mexico City, Mexico
| | - Ángel Lee
- Stroke Unit, Angeles del Pedregal Hospital, Mexico City, Mexico
| | - José D Carrillo-Ruiz
- Unit for Stereotactic and Functional Neurosurgery, General Hospital of Mexico, Mexico City, Mexico; Neuroscience Coordination, Psychology Faculty, Anahuac University, Mexico City, Mexico; Research Direction, General Hospital of Mexico, Mexico City, Mexico.
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She C, Sun Z, Zhang Z, Wang S, Zhang X, Yin Q, Liu Q, Piao Y, Wang P, Wang X, Li W, Li P. Noninvasive Targeting System with Three-Dimensionally Printed Customized Device in Stereotactic Brain Biopsy. World Neurosurg 2024; 183:e649-e657. [PMID: 38181876 DOI: 10.1016/j.wneu.2023.12.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 12/30/2023] [Indexed: 01/07/2024]
Abstract
OBJECTIVE Three-dimensional (3D) printed models are used in the medical field. This study aimed to evaluate the feasibility and safety of a 3D-printed guide plate for use in brain biopsy. METHODS Twelve patients with intracranial lesions were retrospectively reviewed to determine clinical outcomes and technical procedural operability. These patients underwent brain biopsy assisted with the 3D-printed guide plate. Postoperative computed tomography was performed to assess the accuracy and associated complications of this guide plate. RESULTS All patients received definite diagnoses assisted by this guide plate. The deviations of the entry and target points were 3.93 ± 0.96 mm and 2.59 ± 0.11 mm, respectively. The angle drift of the puncture path was 5.12° ± 0.14°, and the deviation of the puncture depth was 2.35 ± 1.13 mm. The operation time ranged from 38.5 minutes with local anesthesia to 76.2 minutes with general anesthesia. No patient experienced complications. CONCLUSIONS The 3D-printed guide plate was noninvasive and had acceptable accuracy and the flexibility of frameless systems. The economic and operative benefits of this device supported its status as a powerful tool for brain biopsy in medical facilities in economically disadvantaged areas or institutions without navigation systems.
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Affiliation(s)
- Chunhua She
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Zengfeng Sun
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Zhen Zhang
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Shaojun Wang
- Shanghai Yuanshi Medical Technology Co., Ltd., Shanghai, China
| | - Xiaohui Zhang
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Qiang Yin
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Qun Liu
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Yinzhe Piao
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Peng Wang
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Xiaoguang Wang
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Wenliang Li
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China
| | - Peng Li
- Department of Neurosurgery and Neuro-oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Clinical Research Center for Cancer, Tianjin, China.
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Islam MYU, Akhtar S, Nasir R, Anis SB, Iftikhar H, Khan FR, Martins RS, Bari ME, Ahmed U. Comparing redo surgery and stereotactic radiosurgery for recurrent, residual, and/or tumors showing progression in nonfunctioning pituitary adenomas: A systematic review and meta-analysis. Surg Neurol Int 2024; 15:37. [PMID: 38468659 PMCID: PMC10927195 DOI: 10.25259/sni_907_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 01/18/2024] [Indexed: 03/13/2024] Open
Abstract
Background Non-functioning pituitary adenomas (NFPAs) are well-differentiated benign tumors originating from the adenohypophyseal cells of the pituitary gland. They present with headaches, visual disorders, or cranial nerve deficits. NFPAs can recur, progress, or present as residual tumors. We, therefore, conducted this review to compare the effects of both revision surgery and stereotactic surgery on tumor size, visual status, endocrine status, and complications. Methods A systematic review of published literature on recurrent, residual, or progressing NFPAs that underwent redo surgery or stereotactic radiosurgery from the inception till June 2020 was conducted as per Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Thirteen records (1209 patients) were included, and risk ratio (RR) and 95% confidence intervals (CIs) estimated from each study were pooled using a random-effects meta-analysis model. Results Redo surgery was the preferred intervention in patients presenting with larger tumor sizes and was more effective in reducing the tumor size as compared to stereotactic radiosurgery (SRS) (risk ratio [RR] 56.14; 95% CI, 16.45-191.58). There was more visual loss with revision surgery as compared to SRS (risk ratio [RR] 0.08; 95% CI, 0.03-0.20). However, SRS was associated with fewer complications, such as new diabetes insipidus, as compared to the redo surgery (risk ratio [RR] 0.01; 95% CI 0.01-0.03). Conclusion Redo surgery is the superior choice in the treatment of recurrent/residual or progressing NFPAs if the tumor size is large and an immediate reduction in tumor burden through debulking is warranted. However, redo surgery is associated with a higher risk of visual loss, new endocrinopathies, and other complications, in contrast to SRS.
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Affiliation(s)
| | - Saad Akhtar
- Department of Neurosurgery, Liaquat National Hospital, Karachi, Pakistan
| | - Roua Nasir
- Department of Neurosurgery, Aga Khan University, Karachi, Pakistan
| | - Saad Bin Anis
- Department of Neurosurgery, Shaukat Khanum Memorial Cancer Hospital and Research Center, Lahore, Pakistan
| | - Haissan Iftikhar
- Department of Neurosurgery, Aga Khan University, Karachi, Pakistan
| | - Farhan Raza Khan
- Department of Surgery, Section of Dental Surgery, Aga Khan University, Karachi, Pakistan
| | | | | | - Urooba Ahmed
- Medical School, Liaquat National Hospital and Medical College (LNMC), Liaquat National University, Karachi, Pakistan
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Kaminska P, Cyranowski S, Pilanc P, Malik AR. Syngeneic Mouse Model of Glioblastoma: Intracranial Implantation of GL261 Cells. Methods Mol Biol 2024; 2746:135-146. [PMID: 38070086 DOI: 10.1007/978-1-0716-3585-8_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Glioblastoma (GBM) is the most aggressive and prevalent primary brain malignancy in adults. Current treatments provide limited benefit, and thus, the median overall survival of GBM patients is only 15 months. GBM progression is highly dependent on its ability to evade immune response, so understanding the mechanisms behind GBM-driven immunosuppression seems crucial for designing more efficient therapies. Animal models of GBM constitute a convenient tool in glioma research, and several different approaches have been already developed to model this disease in vivo, including genetic and xenograft models. Here, we describe a murine syngeneic model of glioma which recapitulates many of the key features of human disease, including complex tumor microenvironment. We present an optimized protocol for stereotactic intracranial implantation of GL261 cells into C57BL/6 mice which results in tumor growth in the striatum. This model has been widely used to get insight into glioma biology, as well as in the studies aiming at the development and validation of new therapeutic approaches.
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Affiliation(s)
- Paulina Kaminska
- Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- Cellular Neurobiology Research Group, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Salwador Cyranowski
- Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Paulina Pilanc
- Laboratory of Molecular Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Anna R Malik
- Cellular Neurobiology Research Group, Faculty of Biology, University of Warsaw, Warsaw, Poland.
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Kim MS, Shin I, Park DG, Yoon JH. Post-stroke movement disorders disappearance: a report of disappearance of tardive dyskinesia after stroke and a literature review. Acta Neurol Belg 2023; 123:2005-2007. [PMID: 35997956 DOI: 10.1007/s13760-022-02062-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Min Seung Kim
- Department of Neurology, Ajou University School of Medicine, 5 San, Woncheon-dong, Yongtong-gu, Suwon-si, Kyunggi-do, 442-749, Republic of Korea
- Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Republic of Korea
| | - InJa Shin
- Department of Neurology, Ajou University School of Medicine, 5 San, Woncheon-dong, Yongtong-gu, Suwon-si, Kyunggi-do, 442-749, Republic of Korea
| | - Don Gueu Park
- Department of Neurology, Ajou University School of Medicine, 5 San, Woncheon-dong, Yongtong-gu, Suwon-si, Kyunggi-do, 442-749, Republic of Korea
| | - Jung Han Yoon
- Department of Neurology, Ajou University School of Medicine, 5 San, Woncheon-dong, Yongtong-gu, Suwon-si, Kyunggi-do, 442-749, Republic of Korea.
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Harding L, McFarlane J, Honey CR, McDonald PJ, Illes J. Mapping the Landscape of Equitable Access to Advanced Neurotechnologies in Canada. Can J Neurol Sci 2023; 50:s17-s25. [PMID: 37160675 PMCID: PMC10172973 DOI: 10.1017/cjn.2023.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Geographic, social, political, and economic factors shape access to advanced neurotechnologies, yet little previous research has explored the barriers, enablers, and areas of opportunity for equitable and meaningful access for diverse patient communities across Canada. We applied a mixed-mode approach involving semi-structured interviews and rating scale questions to consult with 24 medical experts who are involved in the care of patients who undergo functional neurosurgery targeting the brain. Seven major themes emerged from the qualitative analysis: Health care system, Neurotechnology features, Patient demographics, Target condition features, Ethics, Upstream barriers and enablers, and Areas of opportunity. Descriptive statistics of the Likert-scale responses suggest that interviewees perceive a disparity between the imperative of access to advanced neurotechnologies for people living in rural and remote areas and the likelihood of achieving such access. The results depict a complex picture of access to functional neurosurgery in Canada with pockets of excellence and a motivation to improve the availability of care for vulnerable populations through the expansion of distributed care models, improved health care system efficiencies, increasing funding and support for patient travel, and increasing awareness about and advocacy for advanced neurotechnologies.
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Affiliation(s)
- Louise Harding
- Neuroethics Canada, Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jacob McFarlane
- Neuroethics Canada, Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Christopher R. Honey
- Faculty of Medicine, Division of Neurosurgery, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Patrick J. McDonald
- Neuroethics Canada, Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- Faculty of Medicine, Division of Neurosurgery, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
- Section of Neurosurgery, Departments of Surgery and Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Judy Illes
- Neuroethics Canada, Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Salah M, Shalaby A. Computed tomography-guided stereotactic surgery in the management of brain lesions: A single-center experience. Surg Neurol Int 2023; 14:184. [PMID: 37292393 PMCID: PMC10246346 DOI: 10.25259/sni_1131_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 05/10/2023] [Indexed: 06/10/2023] Open
Abstract
Background The present study presents our experience with computed tomography (CT)-guided stereotactic surgery in managing deep-seated brain lesions and provides a background in the expanding fields of morphological stereotactic neurosurgery. Methods We conducted this retrospective cohort study on 80 patients managed at the Department of Neurosurgery, Zagazig University Hospitals, Zagazig, Egypt, between January 2019 to January 2021. We targeted patients with morphological stereotactic surgeries performed as the primary management modality of their treatment. Results A total of 80 patients, with a mean age of 44.3 years, were included in the study. The stereotactic targets were supratentorial in 71 patients (88.75%), infratentorial in seven patients (8.75%), and both supraand infratentorial in two patients (2.5%). The lesions showed enhancements with IV contrast in 55 patients (68.75%). Stereotactic procedures were performed under local anesthesia in 64 patients and general anesthesia in 16 patients. Of the 80 stereotactic procedures, 52 were biopsies (65%). We observed a significant improvement in the postoperative Karnofsky performance score compared to the postoperative score (63.4 ± 19.8 vs. 56.7 ± 15.4, P = 0.001). The level of agreement between clinical, radiological, and final pathological diagnosis was assessed; it was complete in 47.5% of the patients. The postprocedural CT scan demonstrated intracranial hemorrhage in five patients (6.25%); four (5%) were silent with no neurological complications. Conclusion This study provided evidence that the stereotactic procedure is easy to perform, accurate in targeting the lesion, and spares patients from undergoing major surgical procedures. Stereotactic applications of spontaneous intracerebral hemorrhage, deep-seated abscesses, encysted tumors, or medically refractory benign intracranial hypertension can improve the outcome even in medically high-risk patients.
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Affiliation(s)
- Mohamed Salah
- Department of Neurosurgery, Zagazig University, Zagazig, Egypt
| | - Ahmed Shalaby
- Department of Neurosurgery, Zagazig University, Zagazig, Egypt
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de Oliveira F, Vaz R, Chamadoira C, Rosas MJ, Ferreira-Pinto MJ. Bilateral deep brain stimulation of the subthalamic nucleus: Targeting differences between the first and second side. Neurocirugia (Astur : Engl Ed) 2023:S2529-8496(22)00100-9. [PMID: 36775743 DOI: 10.1016/j.neucie.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/18/2022] [Indexed: 02/12/2023]
Abstract
INTRODUCTION AND OBJECTIVES Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is a recognized treatment for drug-refractory Parkinson's disease (PD). However, the therapeutic success depends on the accuracy of targeting. This study aimed to evaluate potential accuracy differences in the placement of the first and second electrodes implanted, by comparing chosen electrode trajectories, STN activity detected during microelectrode recording (MER), and the mismatch between the initially planned and final electrode positions on each side. MATERIALS AND METHODS In this retrospective cohort study, we analyzed data from 30 patients who underwent one-stage bilateral DBS. For most patients, three arrays of microelectrodes were used to determine the physiological location of the STN. Final target location depended also on the results of intraoperative stimulation. The choice of central versus non-central channels was compared. The Euclidean vector deviation was calculated using the initially planned coordinates and the final position of the tip of the electrode according to a CT scan taken at least a month after the surgery. RESULTS The central channel was chosen in 70% of cases on the first side and 40% of cases on the second side. The mean length of high-quality STN activity recorded in the central channel was longer on the first side than the second (3.07±1.85mm vs. 2.75±1.94mm), while in the anterior channel there were better MER recordings on the second side (1.59±2.07mm on the first side vs. 2.78±2.14mm on the second). Regarding the mismatch between planned versus final electrode position, electrodes on the first side were placed on average 0.178±0.917mm lateral, 0.126±1.10mm posterior and 1.48±1.64mm inferior to the planned target, while the electrodes placed on the second side were 0.251±1.08mm medial, 0.355±1.29mm anterior and 2.26±1.47mm inferior to the planned target. CONCLUSION There was a tendency for the anterior trajectory to be chosen more frequently than the central on the second side. There was also a statistically significant deviation of the second electrodes in the anterior and inferior directions, when compared to the electrodes on the first side, suggesting that another cause other than brain shift may be responsible. We should therefore factor this during planning for the second implanted side. It might be useful to plan the second side more anteriorly, possibly reducing the number of MER trajectories tested and the duration of surgery.
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Lara-Almunia M, Aguirre-Orue I, Roset-Ferrer C, Bermudez-Andion C, Alvarez AS, Mas-Bonet A, Miguel-Pueyo J, Hernandez-Vicente J. Refractory anorexia nervosa in adulthood and nucleus accumbens deep brain stimulation. Surg Neurol Int 2023; 14:14. [PMID: 36751454 PMCID: PMC9899471 DOI: 10.25259/sni_1112_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 01/01/2023] [Indexed: 01/22/2023] Open
Abstract
Background Anorexia Nervosa is a life-threatening mental illness with numerous consequences. Some cases are chronic and refractory to multiple treatments. Consequently, there is great interest in therapeutic alternatives that may improve severe patients. We present an adult patient with anorexia nervosa that underwent to bilateral nucleus accumbens deep brain stimulation (NAc-DBS). Case description The patient was a healthy 46-year-old woman with higher education and an adequate premorbid socio-labour situation. Her disease had a late onset (25 years). The patient never presented clinical remission or weight stability. In recent years, the patient's body mass index (BMI) was 13.16 (32kg). The case was evaluated with multiple neuropsychological tests as well as the BMI before and after surgery. The clinical follow-up was 50 months. After bilateral NAc-DBS the patient experienced an important clinical benefit and significant improvement in neuropsychological tests and weight (BMI 17.28, 42 kg; 50th month) Programming: 4,5V, 130Hz, 210 µs. Conclusion Despite the patient´s age and the long duration of the disease, our results suggest that bilateral nucleus accumbens stimulation may be a useful and effective therapeutic strategy for cases such as the one presented. Additionally, this case presents a surgical midlife patient with both the latest disease onset and the longest follow-up after treatment in the literature.
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Affiliation(s)
- Monica Lara-Almunia
- Department of Neurosurgery, Jimenez Diaz Foundation University Hospital, Madrid, Spain,Corresponding author: Monica Lara-Almunia, Department of Neurosurgery, Jimenez Diaz Foundation University Hospital, Madrid, Spain.
| | - Iratxe Aguirre-Orue
- Department of Psychiatry and Psychology, Son Espases University Hospital, Palma, Spain
| | - Carolina Roset-Ferrer
- Department of Psychiatry and Psychology, Son Espases University Hospital, Palma, Spain
| | | | - Ana Sofia Alvarez
- Department of Neurosurgery, Jimenez Diaz Foundation University Hospital, Madrid, Spain
| | - Antonio Mas-Bonet
- Department of Radiology, Son Espases University Hospital, Palma, Spain
| | - Jose Miguel-Pueyo
- Department of Psychiatry and Psychology, Son Espases University Hospital, Palma, Spain
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Stünkel R, Zeller AN, Bohne T, Böhrnsen F, Wedi E, Raschke D, Kauffmann P. Accuracy of intraoral real-time navigation versus static, CAD/CAM-manufactured pilot drilling guides in dental implant surgery: an in vitro study. Int J Implant Dent 2022; 8:41. [PMID: 36198996 PMCID: PMC9535055 DOI: 10.1186/s40729-022-00430-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/11/2022] [Indexed: 11/18/2022] Open
Abstract
Background Nowadays, 3D planning and static for dynamic aids play an increasing role in oral rehabilitation of the masticatory apparatus with dental implants. The aim of this study is to compare the accuracy of implant placement using a 3D-printed drilling guide and an intraoral real-time dynamic navigation system. Methods A total of 60 implants were placed on 12 partially edentulous lower jaw models. 30 were placed with pilot drilling guides, the other half with dynamic navigation (DENACAM®). In addition, implant placement in interdental gaps and free-end situations were investigated. Accuracy was assessed by cone-beam computed tomography (CBCT). Results Both systems achieved clinically acceptable results, yet more accurate results regarding the offset of implant base and tip in several spatial dimensions were achieved using drilling guides (each p < 0.05). With regard to angulation, real-time navigation was more precise (p = 0.0016). Its inaccuracy was 3°; the template-guided systems was 4.6°. Median horizontal deviation was 0.52 mm at base and 0.75 mm at tip using DENACAM®. When using the pilot drill guide, horizontal deviation was 0.34 mm in the median and at the tip by 0.59 mm. Regarding angulation, it was found that the closer the drill hole was to the system's marker, the better navigation performed. The template did not show this trend (p = 0.0043; and p = 0.0022). Conclusion Considering the limitations of an in vitro study, dynamic navigation can be used be a tool for reliable and accurate implantation. However, further clinical studies need to follow in order to provide an evidence-based recommendation for use in vivo. Supplementary Information The online version contains supplementary material available at 10.1186/s40729-022-00430-6.
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Affiliation(s)
- Robert Stünkel
- Department of Maxillofacial Surgery, Georg August University, Göttingen, Germany
| | - Alexander-Nicolai Zeller
- Department of Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Straße 1, 30625, Hannover, Germany.
| | | | - Florian Böhrnsen
- Department of Maxillofacial Surgery, Georg August University, Göttingen, Germany
| | - Edris Wedi
- Department of Gastroenterology and Gastrointestinal Oncology, Interdisciplinary Endoscopy, University Medical Center, Georg August University, Göttingen, Germany
| | - David Raschke
- Department of Maxillofacial Surgery, Georg August University, Göttingen, Germany
| | - Philipp Kauffmann
- Department of Maxillofacial Surgery, Georg August University, Göttingen, Germany
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12
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Velasco-Campos F, Esqueda-Liquidano M, Roldan-Valadez E, Carrillo-Ruiz JD, Navarro-Olvera JL, Aguado-Carrillo G. Prelemniscal Radiations as a Target for the Treatment of Parkinson Disease - Individual Variations in the Stereotactic Location of Fiber Components: A Probabilistic Tractography Study. World Neurosurg 2022; 166:e345-e352. [PMID: 35817353 DOI: 10.1016/j.wneu.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Prelemniscal radiation (Raprl) lesions and deep brain stimulation effectively control motor symptoms of Parkinson disease, but individual variations in the stereotactic location of its fiber components constitute a significant concern. The objective of this study was to determine individual variations in the stereotactic location of fiber tracts composing Raprl. METHODS Raprl fiber composition was determined in a group of 10 Parkinson patients and 10 matched controls using 3T magnetic resonance imaging, brain imaging processed for diffusion-weighted images, tract density imaging, and constrained spherical deconvolution. The stereotactic position of the point of maximal proximity (PMP), which is the point where the most significant number of fibers is concentrated in the smallest volume in the tractography, was evaluated in the right and left hemispheres of the same person, between individuals and between patients and controls for each tract in coordinates "x," "y," and "z." The stereotactic coordinates at which PMP of all tracts meet were statistically determined, representing the recommended aim for this target. RESULTS Stereotactic coordinates of the 3 fiber tracts composing Raprl, cerebellar-thalamic-cortical, globus pallidus-peduncle-pontine nucleus, and mesencephalic-orbital frontal cortex, did not vary between right and left hemispheres in the same person and between patients and controls. In contrast, PMP variability between individuals was significant, mainly for the mesencephalic-orbitofrontal tract. Therefore, probabilistic tractography can better determine individual variations to plan electrode trajectories. CONCLUSIONS Individual PMP variations for fiber tracts in Raprl, identified by probabilistic tractography, provide a platform for planning the stereotactic approach to conform volumes for deep brain stimulation and lesions.
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Affiliation(s)
- Francisco Velasco-Campos
- Unit for Stereotactic and Functional Neurosurgery, General Hospital of Mexico, Mexico City, Mexico
| | | | | | | | | | - Gustavo Aguado-Carrillo
- Unit for Stereotactic and Functional Neurosurgery, General Hospital of Mexico, Mexico City, Mexico.
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13
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Poulen G, Rolland A, Chan-Seng E, Sanrey E, Gélisse P, Crespel A, Coubes P. Microendoscopic transventricular deep brain stimulation of the anterior nucleus of the thalamus as a safe treatment in intractable epilepsy: A feasibility study. Rev Neurol (Paris) 2022; 178:886-895. [PMID: 36153255 DOI: 10.1016/j.neurol.2022.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/20/2022] [Accepted: 03/21/2022] [Indexed: 10/14/2022]
Abstract
INTRODUCTION Deep brain stimulation (DBS) of the anterior nucleus of the thalamus (ANT) is proposed in patients with severe intractable epilepsy. When used, the transventricular approach increases the risk of bleeding due the anatomy around the entry point in the thalamus. To avoid such a complication, we used a transventricular microendoscopic technique. METHODS We performed a retrospective study of nine adult patients who were surgically treated for refractory epilepsy between 2010 and 2019 by DBS of the anterior thalamic nucleus. RESULTS Endoscopy provides a direct visual control of the entry point of the lead in the thalamus through the ventricle by avoiding ependymal vessels. No hemorrhage was recorded and accuracy was systematically checked by intraoperative stereotactic MRI. We reported a responder rate improvement in 88.9% of patients at 1 year and in 87.5% at 2 years. We showed a significant decrease in global seizure count per month one year after DBS (68.1%; P=0.013) leading to an overall improvement in quality of life. No major adverse effect was recorded during the follow-up. ANT DBS showed a prominent significant effect with a decrease of the number of generalized seizures. CONCLUSION We aimed at a better ANT/lead collimation using a vertical transventricular approach under microendoscopic monitoring. This technique permitted to demonstrate the safety and the accuracy of the procedure.
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Affiliation(s)
- G Poulen
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France.
| | - A Rolland
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France
| | - E Chan-Seng
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France
| | - E Sanrey
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France
| | - P Gélisse
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France
| | - A Crespel
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France
| | - P Coubes
- Unité "Pathologies cérébrales résistantes", department of neurosurgery, Montpellier university hospital, Montpellier, France; Unité de recherche sur les comportements et mouvements anormaux, department of neurosurgery, Montpellier university hospital, Montpellier, France
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14
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Liao HR, Chiang CL, Shen CI, Chen CJ, Yang HC, Wu HM, Luo YH, Hu YS, Lin CJ, Chung WY, Shiau CY, Guo WY, Pan DH, Lee CC. EGFR mutant status and tyrosine-kinase inhibitors affect the GKRS outcomes for NSCLC brain metastases. J Neurooncol 2022. [PMID: 35976545 DOI: 10.1007/s11060-022-04110-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/01/2022] [Indexed: 10/15/2022]
Abstract
OBJECTIVE Tyrosine kinase inhibitors (TKIs) is the first-line treatment for EGFR-positive non-small cell lung cancer (NSCLC); however, its applicability to patients with wild-type NSCLC remains an issue of contention. This study compared the effects of gamma knife radiosurgery (GKRS) alone versus combining GKRS and TKIs in treating two genetic forms of NSCLC. METHODS This retrospective study examined 479 NSCLC patients with 1982 brain metastases who underwent GKRS and for whom imaging follow-up data or death records were available. All our patients were consecutive. All gene mutations were confirmed by lung biopsy. The three main endpoints in this study were overall survival (OS), local intracranial tumor control (LC), and distal intracranial tumor control (DC). RESULTS There were 296 NSCLC patients with EGFR positive: TKI treatment (n = 262) and without TKI treatment (n = 34). GKRS + TKIs was more effective than GKRS alone in terms of OS (HR 0.53, p = 0.085) and DC (HR 0.51, p < 0.001). There were 150 NSCLC patients with wild-type EGFR: TKI treatment (n = 50) and without TKI treatment (n = 100). GKRS + TKIs was less effective than GKRS alone in terms of OS (HR 1.82, p = 0.049) and DC (HR: 1.40, p = 0.011). We observed no difference in terms of LC in both genetic groups. CONCLUSIONS Combining GKRS with TKIs proved effective in EGFR positive NSCLC patients; however, we do not observe the similar results when combining GKRS with TKIs for patients with wild-type NSCLC.
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15
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Tahara S, Hattori Y, Aso S, Uda K, Kumazawa R, Matsui H, Fushimi K, Yasunaga H, Morita A. Trends in surgical procedures for spontaneous intracerebral hemorrhage in Japan. J Stroke Cerebrovasc Dis 2022; 31:106664. [PMID: 35908346 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/01/2022] [Accepted: 07/17/2022] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES Minimally invasive surgery for spontaneous intracerebral hemorrhage (ICH) has become increasingly popular in recent years. However, there are no reports on the recent trends in surgical procedures for spontaneous ICH. To investigate current trends in surgical methods for spontaneous ICH using a nationwide inpatient database from Japan. MATERIALS AND METHODS Patients who underwent surgery for spontaneous ICH between April 2014 and March 2018 were identified in a nationwide inpatient database from Japan. We examined patient characteristics, diagnoses, types of surgery, complications, and discharge status. RESULTS We identified 21,129 inpatients who underwent surgery for spontaneous ICH. The procedures were as follows: 16,256 (76.9%) transcranial hemorrhage evacuations, 3722 (17.6%) endoscopic hemorrhage evacuations, and 1151 (5.4%) stereotactic aspirations of hemorrhage. Patients tended to receive transcranial hemorrhage evacuations in hospitals with fewer surgical cases. The proportions of endoscopic hemorrhage evacuations increased annually, whereas those of stereotactic surgery decreased. The proportions of transcranial surgery remained almost unchanged. Tracheostomy and hospitalization costs were lower in the stereotactic aspirations of hemorrhage group, and the proportions of reoperation were higher in the endoscopic hemorrhage evacuations group. CONCLUSIONS The use of endoscopic surgery for spontaneous ICH has increased in Japan. This study can form the basis of future clinical investigations into spontaneous ICH surgery.
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Affiliation(s)
- Shigeyuki Tahara
- Department of Neurological Surgery, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan.
| | - Yujiro Hattori
- Department of Neurological Surgery, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan; Department of Anatomy and Neurobiology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Shotaro Aso
- Department of Biostatistics and Bioinformatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuaki Uda
- Health Services Research and Development Center, University of Tsukuba, Ibaraki, Japan
| | - Ryosuke Kumazawa
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Akio Morita
- Department of Neurological Surgery, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
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16
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Hayley J, Hart MG, Mostofi A, Morgante F, Pereira EA. No Adverse Effects following Off-Label Magnetic Resonance Imaging in a Patient with Two Deep Brain Stimulation Systems: A Case Report. Stereotact Funct Neurosurg 2022; 100:253-258. [PMID: 35820403 DOI: 10.1159/000525538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 06/08/2022] [Indexed: 11/19/2022]
Abstract
Magnetic resonance imaging (MRI) in patients with implanted deep brain stimulation (DBS) systems is subject to strict guidelines in order to ensure patient safety. Criteria include limits on the number of implanted leads. Here, we describe the case of a 29-year-old patient with generalized dystonia implanted with 4 DBS electrodes and 2 implantable pulse generators, who had an off-label spinal MRI without regard for manufacturer guidance yet suffered no adverse effects. This suggests that manufacturer guidelines might be overly restrictive with regards to limits on implanted DBS hardware. Further research in this area is needed to widen access to this fundamental imaging modality for patients with DBS.
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Affiliation(s)
- James Hayley
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, United Kingdom
| | - Michael G Hart
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, United Kingdom.,St. George's University Hospital, London, United Kingdom
| | - Abteen Mostofi
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, United Kingdom.,St. George's University Hospital, London, United Kingdom
| | - Francesca Morgante
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, United Kingdom.,St. George's University Hospital, London, United Kingdom.,Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Erlick A Pereira
- Neurosciences Research Centre, Molecular and Clinical Sciences Institute, St George's University of London, London, United Kingdom.,St. George's University Hospital, London, United Kingdom
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17
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Mishra H, Pahwa B, Agrawal D, M Ch MS, M Ch SSK. Gamma knife radiosurgery as an efficacious treatment for paediatric central nervous system tumours: a retrospective study of 61 neoplasms. Childs Nerv Syst 2022; 38:909-918. [PMID: 35290486 DOI: 10.1007/s00381-022-05463-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/17/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Brain tumours have an incidence of 1.15 to 5.14 cases per 100,000 children and are associated with significant morbidity and mortality. Radiosurgery has become a promising approach to manage these paediatric CNS tumours. The aim of the present study was to analyse the efficacy of radiosurgery in the treatment of a variety of paediatric tumours of CNS. METHODS This retrospective study was conducted from 1997 to 2012 at a single Neurosurgery centre. All paediatric patients (≤ 18 years of age) with CNS tumours who were treated with gamma knife radiosurgery (GKRS) and had a minimum follow up of 6 months were included in the study. Patients with lesions other than tumours were excluded. Clinical, radiological and GKRS planning data was collected and analysed in all patients. RESULTS A total of 76 children with brain tumours had GKRS during the study period. Of these, 40 children (with 61 neoplasms) had follow-up available and were included in the study. The mean age was 16 years (6-18 years). Seventeen patients received primary GKRS, 20 patients received secondary, and 3 patients received both. The median tumour volume was 3.3 cm3 (0.14-38.9 cm3). The mean dose was 12.56 Gy at 50% isodose line. The majority of the tumours were meningioma (n = 20) followed by acoustic schwannoma (n = 17). The mean treatment time was 67.04 min. Thirty-three tumours responded favourably to GKRS, 24 showed a stable size, 3 had no response while 1 progressed, requiring surgery. CONCLUSION GKRS has the potential to become an indispensable tool in the management of paediatric brain neoplasms.
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Affiliation(s)
- Harshit Mishra
- Consultant Neurosurgeon, We Care Hospital, Raipur, Chhattisgarh, India
| | - Bhavya Pahwa
- University College of Medical Sciences and GTB Hospital, Delhi, India
| | - Deepak Agrawal
- Department of Neurosurgery, JPNA Trauma Center, All India Institute of Medical Sciences, New Delhi, 110029, India.
| | - Manmohan Singh M Ch
- Department of Neurosurgery, JPNA Trauma Center, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - S S Kale M Ch
- Department of Neurosurgery, JPNA Trauma Center, All India Institute of Medical Sciences, New Delhi, 110029, India
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18
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Tabourel G, Le Turnier P, Buffenoir K, Roualdes V. Robot-assisted stereotactic multiple brain abscesses' puncture: technical case report. Acta Neurochir (Wien) 2022; 164:845-51. [PMID: 34410501 DOI: 10.1007/s00701-021-04955-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
We report a case of multiple brain abscesses' puncture, employing the ROSA™ Brain surgical robot (Zimmer Biomet) and the O-arm® O2 Imaging System (Medtronic). A 51-year-old man was diagnosed with multiple supratentorial ring enhancing cystic lesions consistent with brain abscesses. A neurological deterioration occurred despite broad spectrum antibiotic therapy, due to mass effect of the abscesses. Stereotactic aspiration was performed using the described technique, allowing a single stage puncture of the cerebral lesions. In this case, the robot-assisted and image-guided procedure permitted an accurate, quick, and efficient targeting of the multiple abscesses for drainage.
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19
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Escobar Vidarte OA, Griswold DP, Orozco Mera J, Arango Uribe GJ, Salcedo JC. Deep Brain Stimulation for Severe and Intractable Aggressive Behavior. Stereotact Funct Neurosurg 2022; 100:210-213. [PMID: 35100596 DOI: 10.1159/000521766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 12/05/2021] [Indexed: 01/28/2023]
Abstract
Aggressive behavior in patients with intellectual disability can be resistant to pharmacological treatment and have detrimental consequences to themselves, family members, and caregivers. Hypothalamic deep brain stimulation (DBS) has been used to improve this type of behavior in severe and refractory cases. Here, we present the description and analysis of DBS of the posteromedial hypothalamus (PMH) and its long-term impact as treatment to improve severe and refractory aggressive behaviors, even with previous bilateral hypothalamotomy without improvement in patients with intellectual disability. Eleven patients underwent bilateral DBS of the PMH. Their medical records were reviewed, and the impact on behavior was measured using preoperative and postoperative Modified Overt Aggression Scale (MOAS) during the last follow-up medical visit. Nine of 11 patients presented a significant decrease in the severity of aggressive behavior, with a preoperative and postoperative MOAS average value of 50.5 and 18.7, respectively. An overall improvement of 63% was seen with a mean follow-up time of 4 years. A patient who previously underwent a bilateral hypothalamotomy via radiofrequency was included in this group. During follow-up, 3 patients presented deterioration of symptoms subsequent to pulse generator depletion but made a full clinical recovery after battery replacement. We posit that DBS of the PMH may be a safe and effective in improving severe and refractory aggressive behavior in patients with long-term intellectual disability.
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Affiliation(s)
- Oscar Andrés Escobar Vidarte
- Department of Neurosurgery, University Del Valle, Cali, Colombia.,Department of Neurosurgery, University Hospital Del Valle, Cali, Colombia.,Department of Neurosurgery, Castellana Clinic, Cali, Colombia.,Latin American Institute of Neurology and the Nervous System, Department of Neurosurgery, Bogota, Colombia
| | - Dylan Paul Griswold
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom.,School of Medicine, Stanford Medical School, Stanford, California, USA
| | - Javier Orozco Mera
- Department of Neurosurgery, University Del Valle, Cali, Colombia.,Department of Neurosurgery, University Hospital Del Valle, Cali, Colombia
| | - Gabriel José Arango Uribe
- Latin American Institute of Neurology and the Nervous System, Department of Neurosurgery, Bogota, Colombia.,Department of Neurosurgery, Marley Clinic, Bogota, Colombia
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Abstract
The use of antisense oligonucleotides (AONs) is a promising therapeutic strategy for central nervous system disorders. However, the delivery of AONs to the central nervous system is challenging because their size does not allow them to diffuse over the blood-brain barrier (BBB) when injected systemically. The BBB can be bypassed by administering directly into the brain. Here we describe a method to perform single and repeated intracerebroventricular injections into the lateral ventricle of the mouse brain.
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Affiliation(s)
- Tom Metz
- Department of Human Genetics, LUMC, Leiden, The Netherlands.
| | - Elsa C Kuijper
- Department of Human Genetics, LUMC, Leiden, The Netherlands
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21
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Minkin K, Gabrovski K, Karazapryanov P, Milenova Y, Sirakov S, Dimova P. Theoretical stereoelectroencephalography density on the brain convexity. Epilepsy Res 2022; 179:106845. [PMID: 34968894 DOI: 10.1016/j.eplepsyres.2021.106845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/05/2021] [Accepted: 12/16/2021] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Invasive electroencephalography (EEG) remains the "gold standard" for diagnosing the epileptogenic zone in patients with drug-resistant epilepsy and discrepancies between seizure semiology, video-EEG and magnetic resonance imaging (MRI) findings. However, the possibilities of stereoelectroencephalography (SEEG) to explore the brain surface remain a matter of debate and subdural EEG (SDEEG) is still preferred in some centers for cases when the supposed epileptogenic zone is on the brain convexity. The aim of our study was to evaluate the theoretical safe SEEG coverage on the brain convexity and to compare the theoretical SEEG cortical density with the usual SDEEG density. MATERIALS AND METHODS Our material included 10 hemispheres in 5 patients, who had been already investigated with SEEG for drug-resistant epilepsy. We translated our previously described technique in a theoretical model in an attempt to calculate the maximal number of avascular windows for each cerebral hemisphere. The distance between every entry point and the other entry points for each hemisphere was calculated using a mathematical formula. Subsequently, the theoretical SEEG coverage on the brain convexity was described using the maximal, minimal and average distances between each entry point and the closest 4 neighboring points. This type of measurement allows a direct comparison between SEEG and SDEEG in their ability to explore the brain convexity. RESULTS Ten hemispheres had 1328 safe entry points with a safety margin of 2.5 mm and a minimal distance of 2.5 mm between 2 entry points (average number of entry points: 132.8 (SD ± 5). The number of entry points in the explored 10 hemispheres varied from 104 to 156. The average distance between each entry point and its 4 neighbors was 11.47 mm. The maximal distance between two entry points in these 10 hemispheres was ranging from 20.28 to 27.23 mm (average: 24.67 mm). The closest entry points for the explored hemispheres were at an average distance of 4.67 mm (range: 2.82 - 5.96 mm). The average convexity surface was 223.68 cm2 (range: 204.63-238.77 cm2). The safe electrode density without electrode collision on the cortical surface was ranging from 0.46 to 0.69 electrodes per cm2 (average: 0.59 electrodes per cm2) (SD ± 0.023). CONCLUSION The theoretical SEEG cortical density is comparable with the usual SDEEG density. These findings, combined with the better safety profile of SEEG and the possibilities to explore deep cortical structures, explain the progressive shift from SDEEG to SEEG during the last years.
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Affiliation(s)
- Krasimir Minkin
- Department of Neurosurgery, University Hospital "Sv. Ivan Rilski", Sofia, Bulgaria, "Akad. Ivan Geshov" blvd, 15, Sofia 1000, Bulgaria.
| | - Kaloyan Gabrovski
- Department of Neurosurgery, University Hospital "Sv. Ivan Rilski", Sofia, Bulgaria, "Akad. Ivan Geshov" blvd, 15, Sofia 1000, Bulgaria.
| | - Petar Karazapryanov
- Department of Neurosurgery, University Hospital "Sv. Ivan Rilski", Sofia, Bulgaria, "Akad. Ivan Geshov" blvd, 15, Sofia 1000, Bulgaria.
| | - Yoana Milenova
- Department of Neurology, University Hospital "Sv. Ivan Rilski", Sofia, Bulgaria, "Akad. Ivan Geshov" blvd, 15, Sofia 1000, Bulgaria.
| | - Stanimir Sirakov
- Department of Interventional Radiology, University Hospital "Sv. Ivan Rilski", Sofia, Bulgaria, "Akad. Ivan Geshov" blvd, 15, Sofia 1000, Bulgaria.
| | - Petia Dimova
- Department of Neurosurgery, University Hospital "Sv. Ivan Rilski", Sofia, Bulgaria, "Akad. Ivan Geshov" blvd, 15, Sofia 1000, Bulgaria.
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Lui M, Gouveia A, Lagace D, Wang J. Combination of Endothelin-1 (ET-1) and L-NAME to Induce Murine Focal Cortical Stroke with Persistent Sensorimotor Deficits. Methods Mol Biol 2022; 2515:75-87. [PMID: 35776346 DOI: 10.1007/978-1-0716-2409-8_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The endothelin-1 (ET-1) model of stroke involves the stereotactic injection of the vasoconstrictor ET-1 to produce a focal ischemic injury. In rats, this model produces consistent deficits, in contrast to more variable results in mice. In this chapter, we describe a new method to induce a murine focal ischemic cortical stroke by injecting L-NAME, another potent vasoconstrictor , in combination with ET-1 into the sensorimotor cortex. This ET-1 /L-NAME stroke induction protocol produces consistent focal cortical infarcts and sensorimotor functional impairments in C57BL/6 mice.
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Affiliation(s)
- Margarita Lui
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Ayden Gouveia
- Max Planck Institute for Metabolism Research, Cologne, Germany
| | - Diane Lagace
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- University of Ottawa Brain and Mind Research Institute, Ottawa, ON, Canada
- Canadian Partnership for Stroke Recovery, Ottawa, ON, Canada
| | - Jing Wang
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.
- Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.
- University of Ottawa Brain and Mind Research Institute, Ottawa, ON, Canada.
- Canadian Partnership for Stroke Recovery, Ottawa, ON, Canada.
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Costa-Gertrudes R, Simão D, Franco A, Morgado C, Peralta AR, Pimentel J, Gonçalves-Ferreira A, Bentes C, Campos AR. Anterior Nucleus of Thalamus Deep Brain Stimulation: A Clinical-Based Analysis of the Ideal Target in Drug-Resistant Epilepsy. Stereotact Funct Neurosurg 2021; 100:108-120. [PMID: 34915532 DOI: 10.1159/000519917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Deep brain stimulation of the anterior nucleus of thalamus (ANT-DBS) is an approved procedure for drug-resistant epilepsy. However, the preferred location inside ANT is not well known. In this study, we investigated the relationship between stereotactical coordinates of stimulated contacts and clinical improvement, in order to define the ideal target for ANT-DBS. METHODS Individual contact's coordinates were obtained in the Montreal Neurological Institute (MNI) 152 space, with the utilization of advanced normalization tools and co-registration of pre- and postoperative MRI and CT images in open-source toolbox lead-DBS with the "Atlas of the Human Thalamus." Each contact's pair was either classified as a responder (≥50% seizure reduction and absence of intolerable adverse effects) or nonresponder, with a minimum follow-up of 11 continuous months of stimulation. RESULTS A total of 19 contacts' pairs were tested in 14 patients. The responder rate was 9 out of 14 patients (64.3%). In 4 patients, a change in contacts' pairs was needed to achieve this result. A highly encouraging location inside ANT (HELIA) was delimited in MNI space, corresponding to an area in the anterior and inferior portion of the anteroventral (AV) nucleus, medially to the endpoint of the mammillothalamic tract (ANT-mtt junction) (x [3.8; 5.85], y [-2.1; -6.35] and z [6.2; 10.1] in MNI space). Statistically significant difference was observed between responders and nonresponders, in terms of the number of coordinates inside this volume. Seven responders and two nonresponders had at least 5 of 6 coordinates (2 electrodes) inside HELIA (77.8% sensitivity and 80% specificity). In 3 patients, changing to contacts that were better placed inside HELIA changed the status from nonresponder to responder. CONCLUSIONS A relationship between stimulated contacts' coordinates and responder status was observed in drug-resistant epilepsy. The possibility to target different locations inside HELIA may help surpass anatomical variations and eventually obtain increased clinical benefit.
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Affiliation(s)
| | - Diogo Simão
- Department of Neurosciences and Mental Health, Department of Neurosurgery, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal
| | - Ana Franco
- Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal.,EEG/Sleep Lab and Neurophysiology Monitoring Unit, Department of Neurosciences and Mental Health (Neurology), Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
| | - Carlos Morgado
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal.,Department of Neuroradiology, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisbon, Portugal
| | - Ana Rita Peralta
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal.,EEG/Sleep Lab and Neurophysiology Monitoring Unit, Department of Neurosciences and Mental Health (Neurology), Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
| | - José Pimentel
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal
| | - António Gonçalves-Ferreira
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Department of Neurosciences and Mental Health, Department of Neurosurgery, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal
| | - Carla Bentes
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal.,EEG/Sleep Lab and Neurophysiology Monitoring Unit, Department of Neurosciences and Mental Health (Neurology), Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisboa, Portugal
| | - Alexandre Rainha Campos
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.,Department of Neurosciences and Mental Health, Department of Neurosurgery, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisbon, Portugal.,Centro de Referência Para Epilepsias Refractárias from EpiCare Network (European Reference Network for Rare and Complex Epilepsies), Hospital de Santa Maria, CHULN, Lisbon, Portugal
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Lau BL, Vijian K, Liew DNS, Wong ASH. Factors affecting diagnostic yield in stereotactic biopsy for brain lesions: a 5-year single-center series. Neurosurg Rev 2021. [PMID: 34628562 DOI: 10.1007/s10143-021-01671-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/31/2021] [Accepted: 10/06/2021] [Indexed: 10/20/2022]
Abstract
The objective of this study is to determine the factors that are associated with the diagnostic yield of stereotactic brain biopsy. A retrospective analysis was performed on 50 consecutive patients who underwent stereotactic brain biopsies in a single institute from 2014 to 2019. Variables including age, gender, lesion topography and characteristics, biopsy methods, and surgeon's experience were analyzed along with diagnostic rate. This study included 31 male and 19 female patients with a mean age of 48.4 (range: 1-76). Of these, 25 underwent frameless brain-suite stereotactic biopsies, 15 were frameless Portable Brain-lab® stereotactic biopsies and 10 were frame-based CRW® stereotactic biopsies. There was no statistical difference between the diagnostic yield of the three methods. The diagnostic yield in our series was 76%. Age, gender, and biopsy methods had no impact on diagnostic yield. Periventricular and pineal lesion biopsies were significantly associated with negative diagnostic yield (p = 0.01) whereas larger lesions were significantly associated with a positive yield (p = 0.01) with the mean volume of lesions in the positive yield group (13.6 cc) being higher than the negative yield group (7 cc). The diagnostic yields seen between senior and junior neurosurgeons in the biopsy procedure were 95% and 63%, respectively (p = 0.02). Anatomical location of the lesion, volume of the lesion, and experience of the surgeon have significant impacts on the diagnostic yield in stereotactic brain biopsy. There was no statistical difference between the diagnostic yield of the three methods, age, gender, and depth of lesion.
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25
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Hirato M, Miyagishima T, Takahashi A, Yoshimoto Y. Thalamic anterior part of the ventral posterolateral nucleus and central lateral nucleus in the genesis of central post-stroke pain. Acta Neurochir (Wien) 2021; 163:2121-2133. [PMID: 33990885 DOI: 10.1007/s00701-021-04743-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 01/27/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND The genesis of central post-stroke pain (CPSP) is important but difficult to understand. We evaluated the involvement of the thalamic anterior part of the ventral posterolateral nucleus (VPLa) and central lateral nucleus (CL) in the occurrence of CPSP. METHOD Stereotactic thalamotomy was performed on the posterior part of the ventral lateral nucleus (VLp)-VPLa and CL in 9 patients with CPSP caused by deep-seated intracerebral hemorrhage. Computed tomography (CT) did not reveal definite thalamic lesion in 5 patients but did in 4 patients. Electrophysiological studies of these thalamic nuclei were carried out during the surgery. Anatomical studies using CT were performed in another 20 patients with thalamic hemorrhage who had clear consciousness but had sensory disturbance at onset. RESULTS Neural activities were preserved and hyperactive and unstable discharges (HUDs) were often recognized along the trajectory in the thalamic VLp-VPLa in 5 patients without thalamic lesion. Surgical modification of this area ameliorated pain, particularly movement-related pain. Neural activities were hypoactive in the other 4 patients with thalamic lesion. However, neural activities were preserved and HUDs were sometimes recognized in the CL. Sensory responses were seen, but at low rate, in the sensory thalamus. Anatomical study showed that the thalamic lesion was obviously smaller in the patients with developing pain in the chronic stage. CONCLUSIONS Change in neural activities around the cerebrovascular disease lesion in the thalamic VPLa or CL might affect the perception of sensory impulses or sensory processing in those thalamic nuclei, resulting in the genesis of CPSP.
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Affiliation(s)
- Masafumi Hirato
- Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
- Department of Neurosurgery, National Hospital Organization Shibukawa Medical Center, Shibukawa, Gunma, Japan.
| | - Takaaki Miyagishima
- Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Akio Takahashi
- Department of Neurosurgery, National Hospital Organization Shibukawa Medical Center, Shibukawa, Gunma, Japan
| | - Yuhei Yoshimoto
- Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
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26
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Pooja NA, Pahuja SK, Veer K. Significance of MRI Guided Focused Ultrasound Thalamotomy for Parkinson's Disease: A Review. Curr Med Imaging 2021; 17:714-719. [PMID: 33357197 DOI: 10.2174/1573405616666201223142505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 09/23/2020] [Accepted: 10/14/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Magnetic-Resonance guided Focused Ultrasound (FUS) thalamotomy is a new and less invasive surgical technique for treating Parkinson's disease (PD). During therapy, the required part of the cerebral (as STN, Internal Globus Pallidus, and Ventral Intermediate Nucleus) is ablated with less possibility of infection and brain hemorrhage as it normally happens in invasive procedures. INTRODUCTION New advancement in the technique enables it for transcranial transportation of US. Nowadays, US coupling with MRI confirms the accurate energy transferring and monitoring. So, MRI guided FUS lesioning is discovered for various psychiatric and brain disorders. METHODS A technical overview of non-invasive MRI-FUS thalamotomy to treat various tremors is described here. Research, review articles, and book chapters are extracted from online resources using related search strings from the year 1994-2020. RESULTS MRgFUS is concluded a non-invasive, satisfactory, and safe technique to reduce the tremor. Conlusion: MRgFUS is comparatively a new method that is being explored as a non-invasive cerebral ablation to solve the problems of movement disorder.
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Affiliation(s)
- N A Pooja
- Department of Instrumentation and Control Engineering, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India
| | - S K Pahuja
- Department of Instrumentation and Control Engineering, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India
| | - K Veer
- Department of Instrumentation and Control Engineering, Dr. B. R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India
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Zakaria Z, Ghani ARI, Idris Z, Fitzrol DN, Ang SY, Abdullah JM. Commentary: Radiofrequency Ablation for Movement Disorders: Risk Factors for Intracerebral Hemorrhage, a Retrospective Analysis. Oper Neurosurg (Hagerstown) 2021; 21:E221-E223. [PMID: 34114025 DOI: 10.1093/ons/opab190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/02/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
- Zaitun Zakaria
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Brain and Behaviour Cluster, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Department of Neurosciences, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Jalan Raja Perempuan Zainab 2, Kota Bharu, Malaysia
| | - Abdul Rahman Izaini Ghani
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Brain and Behaviour Cluster, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Department of Neurosciences, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Jalan Raja Perempuan Zainab 2, Kota Bharu, Malaysia
| | - Zamzuri Idris
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Brain and Behaviour Cluster, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Department of Neurosciences, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Jalan Raja Perempuan Zainab 2, Kota Bharu, Malaysia
| | - Diana Noma Fitzrol
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Brain and Behaviour Cluster, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Department of Neurosciences, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Jalan Raja Perempuan Zainab 2, Kota Bharu, Malaysia
| | - Song Yee Ang
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Brain and Behaviour Cluster, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Department of Neurosciences, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Jalan Raja Perempuan Zainab 2, Kota Bharu, Malaysia
| | - Jafri Malin Abdullah
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Brain and Behaviour Cluster, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Malaysia.,Department of Neurosciences, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus, Jalan Raja Perempuan Zainab 2, Kota Bharu, Malaysia
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28
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Horisawa S, Fukui A, Nonaka T, Kawamata T, Taira T. Radiofrequency Ablation for Movement Disorders: Risk Factors for Intracerebral Hemorrhage, a Retrospective Analysis. Oper Neurosurg (Hagerstown) 2021; 21:143-149. [PMID: 34098579 DOI: 10.1093/ons/opab169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 03/14/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND One of the greatest concerns associated with radiofrequency ablation is intracerebral hemorrhage (ICH). However, the majority of previous studies have mainly evaluated Parkinson disease patients with ablation of the globus pallidus internus (GPi). OBJECTIVE To investigate the hemorrhagic risk associated with radiofrequency ablation using ventro-oral (Vo) nucleus, ventral intermediate (Vim) nucleus, GPi, and pallidothalamic tract. METHODS Radiofrequency ablations for movement disorders from 2012 to 2019 at our institution were retrospectively analyzed. Multivariate analyses were performed to evaluate associations between potential risk factors and ICH. RESULTS A total of 558 patients underwent 721 stereotactic radiofrequency ablations for movement disorders. Among 558 patients, 356 had dystonia, 111 had essential tremor, and 51 had Parkinson disease. Among 721 procedures, the stereotactic targets used in this study were as follows: Vo: 230; Vim: 199; GPi: 172; pallidothalamic tract: 102; Vim/Vo: 18. ICH occurred in 37 patients (5.1%, 33 with dystonia and 4 with essential tremor). Symptomatic ICH developed in 3 Vo nuclei (1.3%), 3 Vim nuclei (1.5%), and 2 GPi (1.2%). Hypertension (odds ratio = 2.69, P = .0013), higher number of lesions (odds ratio = 1.23, P = .0221), and younger age (odds ratio = 1.04, P = .0055) were significant risk factors for ICH associated with radiofrequency ablation. CONCLUSION The present study revealed that younger age, higher number of lesions, and history of hypertension were independent risk factors for ICH associated with stereotactic radiofrequency ablation.
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Affiliation(s)
- Shiro Horisawa
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Atsushi Fukui
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Taku Nonaka
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Takakazu Kawamata
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
| | - Takaomi Taira
- Department of Neurosurgery, Neurological Institute, TokyoWomen's Medical University, Tokyo, Japan
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Holland MT, Mansfield K, Mitchell A, Burchiel KJ. Hidden Error in Optical Stereotactic Navigation Systems and Strategy to Maximize Accuracy. Stereotact Funct Neurosurg 2021; 99:369-376. [PMID: 33744897 DOI: 10.1159/000514053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/23/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Optical neuronavigation has been established as a reliable and effective adjunct to many neurosurgical procedures. Operations such as asleep deep brain stimulation (aDBS) benefit from the potential increase in accuracy that these systems offer. Built into these technologies is a degree of tolerated error that may exceed the presumed accuracy resulting in suboptimal outcomes. OBJECTIVE The objective of this study was to identify an underlying source of error in neuronavigation and determine strategies to maximize accuracy. METHODS A Medtronic Stealth system (Stealth Station 7 hardware, S8 software, version 3.1.1) was used to simulate an aDBS procedure with the Medtronic Nexframe system. Multiple configurations and orientations of the Nexframe-Nexprobe system components were examined to determine potential sources of, and to quantify navigational error, in the optical navigation system. Virtual entry point and target variations were recorded and analyzed. Finally, off-plan error was recorded with the AxiEM system and visual observation on a phantom head. RESULTS The most significant source of error was found to be the orientation of the reference marker plate configurations to the camera system, with the presentation of the markers perpendicular to the camera line of site being the most accurate position. Entry point errors ranged between 0.134 ± 0.048 and 1.271 ± 0.0986 mm in a complex, reproducible pattern dependent on the orientation of the Nexprobe reference plate. Target errors ranged between 0.311 ± 0.094 and 2.159 ± 0.190 mm with a similarly complex, repeatable pattern. Representative configurations were tested for physical error at target with errors ranging from 1.2 mm to 1.4 mm. Throughout data acquisition, no orientation was indicated as outside the acceptable tolerance by the Stealth software. CONCLUSIONS Use of optical neuronavigation is expected to increase in frequency and variety of indications. Successful implementation of this technology depends on understanding the tolerances built into the system. In situations that depend on extremely high precision, surgeons should familiarize themselves with potential sources of error so that systems may be optimized beyond the manufacturer's built-in tolerances. We recommend that surgeons align the navigation reference plate and any optical instrument's reference plate spheres in the plane perpendicular to the line of site of the camera to maximize accuracy.
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Affiliation(s)
- Marshall T Holland
- Department of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | | | - Ann Mitchell
- Department of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, USA
| | - Kim J Burchiel
- Department of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, USA,
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30
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Pehlivan KC, Khanna PC, Elster JD, Paul MR, Levy ML, Crawford JR, Gonda DD. Clinical and Neuroimaging Features of Magnetic Resonance-Guided Stereotactic Laser Ablation for Newly Diagnosed and Recurrent Pediatric Brain Tumors: A Single Institutional Series. World Neurosurg 2021; 150:e378-e387. [PMID: 33722713 DOI: 10.1016/j.wneu.2021.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE We describe our single-institutional experience with magnetic resonance-guided stereotactic laser ablation (SLA) for the treatment of newly diagnosed and recurrent pediatric brain tumors. METHODS Eighteen consecutive ablation procedures were performed in 17 patients from March 2016-April 2020. Patient demographics, indications, procedures, neuroimaging features, and outcomes were reviewed retrospectively. RESULTS Seventeen patients (mean age of 11.4 years, 11 boys, 6 girls) underwent SLA with a mean follow-up of 24 months (range: 3-45 months). Tumor histologies included pilocytic astrocytoma (n = 5), ganglioglioma (n = 3), low-grade glioma not otherwise specified (n = 4), glioblastoma (n = 2), meningioma (n = 1), medulloblastoma (n = 1), and metastatic malignant peripheral nerve sheath tumor (n = 1). SLA was first-line therapy in 10 patients. Mean procedure duration including anesthesia time was 328 minutes (range: 244-529 minutes), and mean postoperative length of stay was 1.5 days (range 1-5 days). The complication rate was 29%, which included 3 patients who experienced postoperative motor changes, which resolved within several weeks of surgery, 1 patient with self-limited intraoperative bradycardia and hypotension, and 1 patient who died postoperatively due to intracranial hemorrhage from a distant lesion. Twelve of 17 patients had a neuroimaging response after SLA (4 complete responses, 8 partial responses, 1 stable disease). Percentage of tumor shrinkage from baseline ranged from 33%-100% (mean 75%). Patients with low-grade glioma exhibited the best responses to SLA (range 3%-100% decrease; mean 90%; 36% complete response rate). CONCLUSIONS SLA is a minimally invasive modality for the treatment of newly diagnosed and recurrent low-grade pediatric brain tumors. Low-grade glioma exhibited the best responses. Identification of ideal candidates for SLA, mitigation of perioperative complications, and demonstration of long-term outcomes need to be better defined in a clinical trial setting.
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Affiliation(s)
- Katherine C Pehlivan
- Department of Neurosciences, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA
| | - Paritosh C Khanna
- Department of Radiology, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA
| | - Jennifer D Elster
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA
| | - Megan Rose Paul
- Department of Neurosciences, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA
| | - Michael L Levy
- Department of Neurosurgery, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA
| | - John R Crawford
- Department of Neurosciences, University of California San Diego, La Jolla, California, USA; Department of Pediatrics, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA.
| | - David D Gonda
- Department of Neurosurgery, University of California San Diego, La Jolla, California, USA; Rady Children's Hospital, San Diego, California, USA
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Nwachuku E, Duehr J, Pease MW, Lunsford LD, Monaco EA. Successful management of an intraluminal superior sagittal sinus meningioma causing elevated intracranial pressure using gamma knife radiosurgery in subacute setting: A case report. Surg Neurol Int 2021; 12:86. [PMID: 33767890 PMCID: PMC7982102 DOI: 10.25259/sni_562_2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 10/07/2020] [Indexed: 11/26/2022] Open
Abstract
Background: Gamma Knife stereotactic radiosurgery (GKRS) facilitates precisely focused radiation to an intracranial target while minimizing substantial off-target radiation in the surrounding normal tissue. Meningiomas attached to or invading the superior sagittal sinus may result in sinus occlusion and are often impossible to completely resect safely. The authors describe successful management of a patient with a meningioma located completely inside the posterior aspect of the superior sagittal sinus. Case Description: A 46-year-old woman presented to the emergency department with progressive generalized headaches accompanied by worsening vision. The patient underwent a diagnostic brain magnetic resonance imaging which showed a solitary a 7 × 6 × 10 mm homogeneously contrast-enhancing lesion within the lumen of the posterior aspect of superior sagittal sinus without ventricular enlargement or peritumoral edema. The lesion was thought to be a meningioma radiographically. To evaluate the suspected increased intracranial pressure, a lumbar puncture was subsequently performed and demonstrated an opening pressure of 30 cm H2O. After drainage of 40 cc of CSF, the spinal closing pressure was 9 cm H2O. After failure of conservative management with acetazolamide, and determination of surgical inoperability due to the critical intraluminal location of the mass lesion, the patient underwent Gamma Knife radiosurgery. The 0.36 cc tumor was treated as an outpatient in the Perfexion® model Gamma Knife with a highly conformal and selective plan that enclosed the 3D geometry of the tumor with a minimal margin tumor dose of 14 gy at the 50% isodose. Three months after GKRS, the patient reported continued reduction in the frequency and severity of both her headaches and her visual disturbance. Ophthalmological consultation noted progressive resolution of her optic disc edema confirmed by formal optical coherence tomography. The patient is now 3 years out from GKRS with complete resolution of headache symptoms along with persistent reduction in tumor size (3 × 1 × 4 mm) on serial period imaging and resolution of papilledema. Conclusion: Tumors located in such critical anatomic regions, as in our patient, should be considered for primary GKRS when the risks of biopsy or removal are too high. GKRS was able to provide great radiographic and clinical result in an intricately located meningioma.
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Affiliation(s)
- Enyinna Nwachuku
- Department of Neurosurgery, University of Pittsburgh Medical Center, Pennsylvania, United States
| | - James Duehr
- Department of School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Matthew W Pease
- Department of Neurosurgery, University of Pittsburgh Medical Center, Pennsylvania, United States
| | - L Dade Lunsford
- Department of Neurosurgery, University of Pittsburgh Medical Center, Pennsylvania, United States
| | - Edward A Monaco
- Department of Neurosurgery, University of Pittsburgh Medical Center, Pennsylvania, United States
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Brandman D, Hong M, Clarke DB. Preclinical Evaluation of the Stealth Autoguide Robotic Guidance Device for Stereotactic Cranial Surgery: A Human Cadaveric Study. Stereotact Funct Neurosurg 2021; 99:343-350. [PMID: 33567429 DOI: 10.1159/000512508] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 10/22/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Stereotactic procedures are routinely performed for brain biopsies, deep brain stimulation, and placement of stereoelectroencephalography (SEEG) electrodes for epilepsy. The recently developed Stealth Autoguide (Medtronic, Minneapolis, MN, USA) device does not require patients to don a stereotactic frame. In this preclinical study, we sought to quantitatively compare the Stealth Autoguide robotic system to 2 devices commonly used in clinical practice: the Navigus biopsy system (Medtronic) and the Leksell stereotactic frame (Elekta Ltd., Stockholm, Sweden). METHODS In the first experimental setup, we compared target accuracy of the Stealth Autoguide to the Navigus system by using phantom heads filled with gelatin to simulate the brain tissue. In the second experimental setup, we inserted SEEG electrodes to targets within cadaveric heads in a simulated operating room environment. RESULTS Using a homogeneous gelatin-filled phantom 3D reconstruction of a human head, we found that using the Stealth Autoguide system, while maintaining accuracy, was faster to use than the Navigus system. In our simulated operating room environment using nonliving human cadaveric heads, we found the accuracy of the Stealth Autoguide robotic device to be comparable to that of the Leksell frame. DISCUSSION/CONCLUSION These results compare the use of the Stealth Autoguide robotic guidance system with commonly used stereotactic devices, and this is the first study to compare its use and accuracy with the Leksell frame. These findings provide mounting evidence that Stealth Autoguide will have potential clinical uses in various stereotactic neurosurgical procedures.
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Affiliation(s)
- David Brandman
- Department of Surgery (Neurosurgery), Dalhousie University, Halifax, Nova Scotia, Canada.,Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
| | - Murray Hong
- Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
| | - David B Clarke
- Department of Surgery (Neurosurgery), Dalhousie University, Halifax, Nova Scotia, Canada, .,Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada,
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Krauss P, Van Niftrik CHB, Muscas G, Scheffler P, Oertel MF, Stieglitz LH. How to avoid pneumocephalus in deep brain stimulation surgery? Analysis of potential risk factors in a series of 100 consecutive patients. Acta Neurochir (Wien) 2021; 163:177-184. [PMID: 32960362 DOI: 10.1007/s00701-020-04588-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 09/16/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Accuracy of lead placement is the key to success in deep brain stimulation (DBS). Precise anatomic stereotactic planning usually is based on stable perioperative anatomy. Pneumocephalus due to intraoperative CSF loss is a common procedure-related phenomenon which could lead to brain shift and targeting inaccuracy. The aim of this study was to evaluate potential risk factors of pneumocephalus in DBS surgery. METHODS We performed a retrospective single-center analysis in patients undergoing bilateral DBS. We quantified the amount of pneumocephalus by postoperative CT scans and corrected the data for accompanying brain atrophy by an MRI-based score. Automated computerized segmentation algorithms from a dedicated software were used. As potential risk factors, we evaluated the impact of trephination size, the number of electrode tracks, length of surgery, intraoperative blood pressure, and brain atrophy. RESULTS We included 100 consecutive patients that underwent awake DBS with intraoperative neurophysiological testing. Systolic and mean arterial blood pressure showed a substantial impact with an inverse correlation, indicating that lower blood pressure is associated with higher volume of pneumocephalus. Furthermore, the length of surgery was clearly correlated to pneumocephalus. CONCLUSION Our analysis identifies intraoperative systolic and mean arterial blood pressure as important risk factors for pneumocephalus in awake stereotactic surgery.
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Affiliation(s)
- Philipp Krauss
- Department of Neurosurgery, Klinikum rechts der Isar, Ismaninger Strasse 22, 81675, Munich, Germany.
| | - Christiaan Hendrik Bas Van Niftrik
- Department of Neurosurgery, University Hospital of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, University Hospital of Zurich, Zurich, Switzerland
| | - Giovanni Muscas
- Clinical Neuroscience Center, University Hospital of Zurich, Zurich, Switzerland
- Department of Neurosurgery, Careggi University Hospital Florence, Florence, Italy
| | - Pierre Scheffler
- Department of Neurosurgery, University Hospital of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, University Hospital of Zurich, Zurich, Switzerland
| | - Markus Florian Oertel
- Department of Neurosurgery, University Hospital of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, University Hospital of Zurich, Zurich, Switzerland
| | - Lennart Henning Stieglitz
- Department of Neurosurgery, University Hospital of Zurich, Zurich, Switzerland
- Clinical Neuroscience Center, University Hospital of Zurich, Zurich, Switzerland
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Franzini A, Moosa S, Prada F, Elias WJ. Ultrasound Ablation in Neurosurgery: Current Clinical Applications and Future Perspectives. Neurosurgery 2020; 87:1-10. [PMID: 31745558 DOI: 10.1093/neuros/nyz407] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/21/2019] [Indexed: 11/14/2022] Open
Abstract
The concept of focusing high-intensity ultrasound beams for the purpose of cerebral ablation has interested neurosurgeons for more than 70 yr. However, the need for a craniectomy or a cranial acoustic window hindered the clinical diffusion of this technique. Recent technological advances, including the development of phased-array transducers and magnetic resonance imaging technology, have rekindled the interest in ultrasound for ablative brain surgery and have led to the development of the transcranial magnetic resonance-guided focused ultrasound (MRgFUS) thermal ablation procedure. In the last decade, this method has become increasingly popular, and its clinical applications are broadening. Despite the demonstrated efficacy of MRgFUS, transcranial thermal ablation using ultrasound is limited in that it can target exclusively the central region of the brain where the multiple acoustic beams are most optimally focused. On the contrary, lesioning of the cortex, the superficial subcortical areas, and regions close to the skull base is not possible with the limited treatment envelope of current phased-array transducers. Therefore, new ultrasound ablative techniques, which are not based on thermal mechanisms, have been developed and tested in experimental settings. This review describes the mechanisms by which these novel, nonthermal ablative techniques are based and also presents the current clinical applications of MRgFUS thermal ablation.
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Affiliation(s)
- Andrea Franzini
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia.,Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Shayan Moosa
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Francesco Prada
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia.,Focused Ultrasound Foundation, Charlottesville, Virginia
| | - W Jeffrey Elias
- Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
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Guerrero Alzola F, Casas Rivero J, Martínez-Álvarez R. Stereotactic surgery on a female patient with severe chronic anorexia nervosa: 10-year follow-up. Eat Weight Disord 2020; 25:1827-1831. [PMID: 31595460 DOI: 10.1007/s40519-019-00787-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/25/2019] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Anorexia nervosa (AN) is a serious disease with a high rate of chronification. In chronic and serious cases, psychotherapeutic and pharmacological treatments are not sufficient to control the disease. CASE REPORT We present the case of a female patient with severe chronic restrictive anorexia nervosa resistant to psychomedical treatment. During the 31 years the illness evolved, the patient required multiple hospital admissions. With a body mass index (BMI) of 12.8 kg/m2 and consequent risk of death, stereotactic cingulotomy was performed comprising bilateral blocking of the anterior cingulate cortex by stereotactic radiofrequency thermocoagulation, confirmed by tractography 5 years later. After 10 years of follow-up, the patient is clinically stable with an increased BMI and improved neuropsychological indicators. DISCUSSION Stereotactic surgery may be an option for patients with chronic anorexia nervosa where conventional treatments have proved insufficient.
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Affiliation(s)
| | | | - Roberto Martínez-Álvarez
- Department of Radiosurgery and Functional Neurosurgery, Rúber International Hospital, Madrid, Spain
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Nolt MJ, Polasani RS, Masnyk TW, Rezak M, Rosenow JM. Prospective Evaluation of the Time Course of White Matter Edema Associated with Implanted Deep Brain Stimulation Electrodes. Stereotact Funct Neurosurg 2020; 99:203-206. [PMID: 33221795 DOI: 10.1159/000511115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 08/24/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Deep brain stimulation (DBS) is commonly used in the treatment of medically refractory movement disorders. There have been several reports in the literature of edema developing around the implanted electrode. Most of these studies have been retrospective, suggesting that the time course and incidence of this edema are underestimated. An understanding of the incidence and time course of edema related to DBS leads is important to allow clinicians to better assess the correct course of action when edema following DBS implantation is observed. METHODS We examined both the time course and prevalence of edema following DBS implantation by obtaining a series of postoperative MRI scans from patients who underwent DBS surgery. Edema volume was quantified by a single neuroradiologist, measuring the peri-electrode T2 signal change. RESULTS We examined postoperative MRIs in thirteen patients with fifteen DBS electrode implants. Eleven patients exhibited white matter edema on at least 1 postoperative MRI, with none being symptomatic. Edema was completely resolved in 4 of the electrode implants through postoperative day 70, with the remaining cases still exhibiting edema at the last imaged time point. DISCUSSION/CONCLUSION In this study, we obtained a regimented series of postoperative MRIs in an effort to determine the time course and incidence of edema. Our results show that edema following DBS implant is not rare, is often asymptomatic, and may resolve over many weeks.
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Affiliation(s)
- Mark J Nolt
- Department of Neurological Surgery, Northwestern University, Chicago, Illinois, USA,
| | - Rajeev S Polasani
- Department of Radiology, Northwestern Medicine Central DuPage Hospital, Winfield, Illinois, USA
| | - Taras W Masnyk
- Department of Neurological Surgery, Northwestern University, Chicago, Illinois, USA
| | - Michael Rezak
- Neurosciences Institute, Vassar Hospital and Medical Center, Poughkeepsie, New York, USA
| | - Joshua M Rosenow
- Department of Neurological Surgery, Northwestern University, Chicago, Illinois, USA
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Rzesnitzek L, Hariz M, Krauss JK. Psychosurgery in the History of Stereotactic Functional Neurosurgery. Stereotact Funct Neurosurg 2020; 98:241-247. [PMID: 32599586 DOI: 10.1159/000508167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 04/20/2020] [Indexed: 01/01/2023]
Abstract
The paper invites to reappraise the role of psychosurgery for and within the development of functional stereotactic neurosurgery. It highlights the significant and long-lived role of stereotactic neurosurgery in the treatment of severe and chronic mental disorders. Stereotactic neurosurgery developed out of psychosurgery. It was leucotomy for psychiatric disorders and chronic pain that paved the way for stereotactic dorsomedial thalamotomy in these indications and subsequently for stereotactic surgery in epilepsy and movement disorders. Through the 1960s stereotactic psychosurgery continued to progress in silence. Due to the increased applications of stereotactic surgery in psychiatric indications, psychosurgery's renaissance was proclaimed in the early 1970s. At the same time, however, a public fearing mind control started to discredit all functional neurosurgery for mental disorders, including stereotactic procedures. In writing its own history, stereotactic neurosurgery's identity as a neuropsychiatric discipline became subsequently increasingly redefined as principally a sort of "surgical neurology," cut off from its psychiatric origin.
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Affiliation(s)
- Lara Rzesnitzek
- Charité Psychiatric University Hospital at St. Hedwigs Hospital, University Medicine Charité, Berlin, Germany,
| | - Marwan Hariz
- UCL Institute of Neurology, Queen Square, London, United Kingdom.,Department of Clinical Neuroscience, Umeå University, Umeå, Sweden
| | - Joachim K Krauss
- Department of Neurosurgery, Medical School Hannover, MHH, Hannover, Germany
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Ball TJ, John KD, Donovan AM, Neimat JS. Deep Brain Stimulation Lead Implantation Using a Customized Rapidly Manufactured Stereotactic Fixture with Submillimetric Euclidean Accuracy. Stereotact Funct Neurosurg 2020; 98:248-255. [PMID: 32485726 DOI: 10.1159/000506959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 02/27/2020] [Indexed: 01/26/2023]
Abstract
BACKGROUND The microTargetingTM MicrotableTM Platform is a novel stereotactic system that can be more rapidly fabricated than currently available 3D-printed alternatives. We present the first case series of patients who underwent deep brain stimulation (DBS) surgery guided by this platform and demonstrate its in vivo accuracy. METHODS Ten patients underwent DBS at a single institution by the senior author and 15 leads were placed. The mean age was 69.1 years; four were female. The ventralis intermedius nucleus was targeted for patients with essential tremor and the subthalamic nucleus was targeted for patients with Parkinson's disease. RESULTS Nine DBS leads in 6 patients were appropriately imaged to enable measurement of accuracy. The mean Euclidean electrode placement error (EPE) was 0.97 ± 0.37 mm, and the mean radial error was 0.80 ± 0.41 mm (n = 9). In the subset of CT scans performed greater than 1 month postoperatively (n = 3), the mean Euclidean EPE was 0.75 ± 0.17 mm and the mean radial error was 0.69 ± 0.17 mm. There were no surgical complications. CONCLUSION The MicrotableTM platform is capable of submillimetric accuracy in patients undergoing stereotactic surgery. It has achieved clinical efficacy in our patients without surgical complications and has demonstrated the potential for superior accuracy compared to both traditional stereotactic frames and other common frameless systems.
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Affiliation(s)
- Tyler J Ball
- Department of Neurosurgery, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Kevin D John
- University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Andrew M Donovan
- University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Joseph S Neimat
- Department of Neurosurgery, University of Louisville School of Medicine, Louisville, Kentucky, USA,
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Eriksson D, Schneck M, Schneider A, Coulon P, Diester I. A starting kit for training and establishing in vivo electrophysiology, intracranial pharmacology, and optogenetics. J Neurosci Methods 2020; 336:108636. [PMID: 32081674 PMCID: PMC7086230 DOI: 10.1016/j.jneumeth.2020.108636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/10/2020] [Accepted: 02/15/2020] [Indexed: 11/29/2022]
Abstract
Accessible, cost-effective brain model for training in surgical techniques. Flexible debugging tool for optimizing noise levels, etc. of a new experiment. Training in electrophysiology, intracranial pharmacology, and optogenetics. Realistic experience close to real stereotactic surgeries. The model can be modified to fit individual lab equipment and goals.
Background In accordance with the three R principles of research, animal usage should be limited as much as possible. Especially for the training of entry-level scientists in surgical techniques underlying opto- and electrophysiology, alternative training tools are required before moving on to live animals. We have developed a cost-effective rat brain model for training a wide range of surgical techniques, including, but not limited to optogenetics, electrophysiology, and intracranial pharmacological treatments. Results Our brain model creates a realistic training experience in animal surgery. The success of the surgeries (e.g. implantation accuracy) is readily assessable in cross sections of the model brain. Moreover, the model allows practicing electrophysiological recordings as well as testing for movement or light related artefacts. Comparison with Existing Method(s) The surgery and recording experience in our model closely resembles that in an actual rat in terms of the necessary techniques, considerations and time span. A few differences to an actual rat brain slightly reduce the difficulty in our model compared to a live animal. Thus, entry level scientists can first learn basic techniques in our model before moving on to the slightly more complex procedures in live animals. Conclusions Our brain model is a useful training tool to equip scientist who are new in the field of electrophysiology and optogenetic manipulations with a basic skill set before applying it in live animals. It can be adapted to fit the desired training content or even to serve in testing and optimizing new lab equipment for more senior scientists.
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Affiliation(s)
- David Eriksson
- Optophysiology, University of Freiburg, Faculty of Biology, 79104 Freiburg, Germany
| | - Megan Schneck
- Optophysiology, University of Freiburg, Faculty of Biology, 79104 Freiburg, Germany
| | - Artur Schneider
- Optophysiology, University of Freiburg, Faculty of Biology, 79104 Freiburg, Germany
| | - Philippe Coulon
- Optophysiology, University of Freiburg, Faculty of Biology, 79104 Freiburg, Germany
| | - Ilka Diester
- Optophysiology, University of Freiburg, Faculty of Biology, BrainLinks-BrainTools, Bernstein Center Freiburg, 79104 Freiburg, Germany.
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Tai CH, Hwu WL, Wu RM, Tseng SH. Modified Frameless Stereotactic System for Intracerebral Delivery of Viral Vector in Young Children. Oper Neurosurg (Hagerstown) 2020; 18:166-174. [PMID: 31214706 DOI: 10.1093/ons/opz119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 01/21/2019] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Stereotaxic surgery for viral vector delivery in young children is highly challenging because of their small cranial size, thin and fragile skull, and deformity of the skull or brain after prolonged bed ridden condition. OBJECTIVE To develop a modified frameless stereotactic system especially suitable for intracerebral delivery of viral vector in young children for accurate localization of intracerebral targets during stereotactic surgery. METHODS A modified frameless stereotactic system was developed for intracerebral delivery of viral vector in pediatric patients with congenital enzyme deficiency. Localization markers and a stereotactic stabilizer were designed specifically for surgery in pediatric patients, and this equipment is used along with a pre-existing frameless stereotactic and computer-assisted planning and navigation system. RESULTS We applied this modified frameless stereotactic system to treat 10 children with aromatic L-amino acid decarboxylase deficiency. CONCLUSION It is potentially suitable for stereotactic functional neurosurgery in pediatric patients as young as 1 yr and 8 mo of age.
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Affiliation(s)
- Chun-Hwei Tai
- Department of Neurology, College of Medicine, National Taiwan Univeristy, Taipei, Taiwan.,Centre of Parkinson and Movement Disorders, Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wu-Lian Hwu
- Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| | - Ruey-Meei Wu
- Department of Neurology, College of Medicine, National Taiwan Univeristy, Taipei, Taiwan.,Centre of Parkinson and Movement Disorders, Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Sheng-Hong Tseng
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
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Faust K, Schneider GH, Vajkoczy P. Utilization of the Intraoperative Mobile AIRO® CT Scanner in Stereotactic Surgery: Workflow and Effectiveness. Stereotact Funct Neurosurg 2020; 97:303-312. [PMID: 31962324 DOI: 10.1159/000504945] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 11/13/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND In frame-based stereotactic surgery, intraoperative imaging is crucial. It generally follows a workflow including preoperative MRI and intraoperative frame-based CT. The intraoperative transport of the anesthetized and intubated patient to and from the CT unit can be time-consuming and cumbersome. Here, we report the first 50 patients who underwent stereotactic biopsies using the mobile AIRO® intraoperative CT (iCT) scanner. METHODS A conventional stereotactic frame was mounted to the AIRO® carbon table via carbon adapter. 0°gantry thin-slice iCT was performed. The imaging data were transferred to a conventional stereotaxy working unit. After fusion of the preoperative MRI and AIRO® iCT, the stereotactic system was built based on the iCT, and trajectories were calculated accordingly. RESULTS The frame-based stereotactic iCT was easy to implement and successfully accomplished in all patients. The MRI/iCT image fusion was feasible in all of the studies. A conclusive histological result was obtained in 46 of the 50 cases included. There was no bleeding complication. Net surgery time was reduced by 38 min, on average. CONCLUSION We conclude that the AIRO® system is a safe, easy-to-use, and sufficiently accurate iCT for CT frame-based stereotactic biopsy planning that results in a considerable reduction of surgery time. In the future, it remains to be evaluated if the accuracy rates and intraoperative workflow will permit its application in deep brain stimulation and other functional procedures as well.
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Affiliation(s)
- Katharina Faust
- Department of Neurosurgery, Charité University Hospital, Berlin, Germany,
| | | | - Peter Vajkoczy
- Department of Neurosurgery, Charité University Hospital, Berlin, Germany
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Jermakowicz WJ, Wu C, Neal E, Cajigas I, D'Haese PF, Donahue DJ, Sharan AD, Vale FL, Jagid JR. Clinically Significant Visual Deficits after Laser Interstitial Thermal Therapy for Mesiotemporal Epilepsy. Stereotact Funct Neurosurg 2020; 97:347-355. [PMID: 31935727 DOI: 10.1159/000504856] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 11/18/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND Laser interstitial thermal therapy (LITT) has recently gained popularity as a minimally invasive surgical option for the treatment of mesiotemporal epilepsy (mTLE). Similar to traditional open procedures for epilepsy, the most frequent neurological complications of LITT are visual deficits; however, a critical analysis of these injuries is lacking. OBJECTIVES To evaluate the visual deficits that occur after LITT for mTLE and their etiology. METHOD We surveyed five academic epilepsy centers that regularly perform LITT for cases of self-reported postoperative visual deficits. For these patients all pre-, intra- and postoperative MRIs were co-registered with an anatomic atlas derived from 7T MRI data. This was used to estimate thermal injury to early visual pathways and measure imaging variables relevant to the LITT procedure. Using logistic regression, we then compared 14 variables derived from demographics, mesiotemporal anatomy, and the surgical procedure for the patients with visual deficits to a normal cohort comprised of the first 30 patients to undergo this procedure at a single institution. RESULTS Of 90 patients that underwent LITT for mTLE, 6 (6.7%) reported a postoperative visual deficit. These included 2 homonymous hemianopsias (HHs), 2 quadrantanopsias, and 2 cranial nerve (CN) IV palsies. These deficits localized to the posterior aspect of the ablation, corresponding to the hippocampal body and tail, and tended to have greater laser energy delivered in that region than the normal cohort. The patients with HH had insult localized to the lateral geniculate nucleus, which was -associated with young age and low choroidal fissure CSF volume. Quadrantanopsia, likely from injury to the optic radiation in Meyer's loop, was correlated with a lateral trajectory and excessive energy delivered at the tail end of the ablation. Patients with CN IV injury had extension of contrast to the tentorial edge associated with a mesial laser trajectory. CONCLUSIONS LITT for epilepsy may be complicated by various classes of visual deficit, each with distinct etiology and clinical significance. It is our hope that by better understanding these injuries and their mechanisms we can eventually reduce their occurrence by identifying at-risk patients and trajectories and appropriately tailoring the ablation procedure.
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Affiliation(s)
| | - Chengyuan Wu
- Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Elliot Neal
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida, USA
| | - Iahn Cajigas
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Pierre-François D'Haese
- Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - David J Donahue
- Department of Neurological Surgery, Cook Children's Medical Center, Fort Worth, Texas, USA
| | - Ashwini D Sharan
- Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Fernando L Vale
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida, USA
| | - Jonathan R Jagid
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA,
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Abstract
Brain abscess is a focal infection of the brain due to contiguous spread of pathogens following otitis, sinusitis, neurosurgery or traumatic brain injury or through hematogenous dissemination. Classical symptoms consisting of headache, fever, and focal signs may be absent on admission and brain MRI with contrast plays a major role in diagnosis. Initial management consists of stereotactic aspiration for microbiological documentation empirical treatment covering common pathogens, including oral streptococci, staphylococci, anaerobes, and Enterobacteriaceae. De-escalation of antimicrobials based on microbiology is safe only when samples have been processed optimally, or when primary diagnosis is endocarditis. A 6-week combination of third-generation cephalosporin and metronidazole will cure most cases of community-acquired brain abscess in immunocompetent adults. Significant advent in brain imaging, minimally invasive surgery, molecular biology, and antibacterial agents, has dramatically improved the prognosis. Main indicators of outcome include altered mental status at presentation and intraventricular rupture.
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Affiliation(s)
- M Cantiera
- UMR1148, LVTS, Department of intensive care medicine and infectious diseases, Sorbonne Paris Cité, Inserm/Paris Diderot University, Bichat Hospital, AP-HP, 75018, Paris, France
| | - P Tattevin
- Infectious diseases and intensive care unit, Pontchaillou University Hospital, 35000, Rennes, France
| | - R Sonneville
- UMR1148, LVTS, Department of intensive care medicine and infectious diseases, Sorbonne Paris Cité, Inserm/Paris Diderot University, Bichat Hospital, AP-HP, 75018, Paris, France.
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Li L, Wu J, Ding H, Wang G. A "eye-in-body" integrated surgery robot system for stereotactic surgery. Int J Comput Assist Radiol Surg 2019; 14:2123-2135. [PMID: 31317475 DOI: 10.1007/s11548-019-02032-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 07/10/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE Current stereotactic surgical robots system relies on cumbersome operations such as calibration, tracking and registration to establish the accurate intraoperative coordinate transformation chain, which makes the system not easy to use. To overcome this problem, a novel stereotactic surgical robot system has been proposed and validated. METHODS First, a hand-eye integrated scheme is proposed to avoid the intraoperative calibration between robot arm and motion tracking system. Second, a special reference-tool-based patient registration and tracking method is developed to avoid intraoperative registration. Third, a model-free visual servo method is used to reduce the accuracy requirement of hand-eye relationship and robot kinematic model. Finally, a prototype of the system is constructed and performance tests and a pedicle screw drilling experiment are performed. RESULTS The results show that the proposed system has acceptable accuracy. The target positioning error in the plane was - 0.68 ± 0.52 mm and 0.06 ± 0.41 mm. The orientation error was 0.43 ± 0.25°. The pedicle screw drilling experiment shows that the system can complete accurate stereotactic surgery. CONCLUSIONS The stereotactic surgical robot system described in this paper can perform stereotactic surgery without the intraoperative hand-eye calibration and nor manual registration and can achieve an acceptable position and orientation accuracy while tolerating the errors in the hand-eye coordinate transformation error and the robot kinematics model error.
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Affiliation(s)
- Liang Li
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Room C249, Beijing, 100084, People's Republic of China
| | - Julia Wu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Room C249, Beijing, 100084, People's Republic of China.,Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Hui Ding
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Room C249, Beijing, 100084, People's Republic of China
| | - Guangzhi Wang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Room C249, Beijing, 100084, People's Republic of China.
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Belfquih H, Akhaddar A. Stereotactic Aspiration in Management of Rare Case of Tuberculous Cerebellar Abscess. World Neurosurg 2019; 129:188-189. [PMID: 31176834 DOI: 10.1016/j.wneu.2019.05.254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 05/30/2019] [Accepted: 05/30/2019] [Indexed: 11/30/2022]
Abstract
Tuberculous brain abscess is an extremely rare form of central nervous system tuberculosis. This lesion usually occurs in the supratentorial space. Cerebellar tubercular abscesses are rare. Most of these cases occur in immunocompromised patients. We report an immunocompetent individual with tuberculous abscess of the cerebellum and discuss the role of stereotactic aspiration in the management of these rare lesions.
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Affiliation(s)
- Hatim Belfquih
- Department of Neurosurgery, Avicenne Military Hospital, Marrakech, Morocco and Mohammed V University, Rabat, Morocco.
| | - Ali Akhaddar
- Department of Neurosurgery, Avicenne Military Hospital, Marrakech, Morocco and Mohammed V University, Rabat, Morocco
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46
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Cunningham M, Azimi S, Zhang G. Intracerebral Delivery in Complex 3D Arrays: The Intracerebral Microinjection Instrument. World Neurosurg 2019; 127:e1172-e1175. [PMID: 31003027 DOI: 10.1016/j.wneu.2019.04.081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVE This video article describes and illustrates the function and application of the intracerebral microinjection instrument (IMI). This newly developed technology allows delivery of therapeutic agents within the human brain in complex 3-dimensional arrays using a single pass or minimal overlying penetrations through brain tissue. METHODS The IMI uses a delivery microcannula with a reduced diameter that minimizes local trauma and is capable of delivering precise volumes of therapeutic agents to discrete brain substructures. The IMI also permits simultaneous recording of neural activity during the delivery procedure, enabling extreme precision using electrophysiologic mapping. Surgical planning software designed specifically for the IMI enables strategic placement of multiple injections. RESULTS This technology platform is presently being used successfully to deliver therapeutic stem cells to restore function in stroke patients. CONCLUSIONS Additional applications of the IMI include delivery of viral vectors for gene therapy, infusion of neurotrophic factors, targeted delivery of chemotherapeutic agents, and delivery of antiretroviral medications.
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Affiliation(s)
- Miles Cunningham
- Laboratory for Neural Reconstruction, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA.
| | - Sina Azimi
- Laboratory for Neural Reconstruction, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, USA
| | - GuangZhu Zhang
- Affiliated BaYi Brain Hospital, Army General Hospital of PLA, Beijing, China
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47
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Rzesnitzek L, Hariz M, Krauss JK. The Origins of Human Functional Stereotaxis: A Reappraisal. Stereotact Funct Neurosurg 2019; 97:49-54. [PMID: 30759450 DOI: 10.1159/000496157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 12/09/2018] [Indexed: 11/19/2022]
Abstract
In order to shed light on the first application of human functional stereotactic neurosurgery, whether it was in the realm of movement disorders, as has been claimed repeatedly, or in the realm of psychiatry, a review of the original scholarly literature was conducted. Tracking and scrutinising original publications by Spiegel and Wycis, the pioneers of human stereotactic neurosurgery, it was found that its origin and the very incentive for its development and first clinical use were to avoid the side effects of frontal leucotomy. The first applications of functional stereotactic neurosurgery were in performing dorsomedial thalamotomies in psychiatric patients; it was only later that the stereotactic technique was applied in patients with chronic pain, movement disorders and epilepsy. Spiegel and Wycis' first functional stereotactic operations were for obsessive-compulsive disorder, schizophrenia, and other psychiatric conditions.
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Affiliation(s)
- Lara Rzesnitzek
- Charité Psychiatric University Hospital at St. Hedwigs Hospital, University Medicine Charité, Berlin, Germany,
| | - Marwan Hariz
- UCL Institute of Neurology, London, United Kingdom.,Department of Clinical Neuroscience, Umeå University, Umeå, Sweden
| | - Joachim K Krauss
- Department of Neurosurgery, Medical School Hannover, Hannover, Germany
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48
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Hamel W, Köppen JA, Müller D, Hariz M, Moll CKE, Krack P. The Pioneering and Unknown Stereotactic Approach of Roeder and Orthner from Göttingen. Part II: Long-Term Outcome and Postmortem Analysis of Bilateral Pallidotomy in the Pre-Levodopa Era. Stereotact Funct Neurosurg 2019; 96:353-363. [PMID: 30650404 DOI: 10.1159/000495412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 11/13/2018] [Indexed: 11/19/2022]
Abstract
Before the advent of levodopa, pallidotomy was initially the most effective treatment for Parkinson disease, but it was soon superseded by thalamotomy. It is widely unknown that, similar to Leksell, 2 neurologists from Göttingen, Orthner and Roeder, perpetuated pallidotomy against the mainstream of their time. Postmortem studies demonstrated that true posterior and ventral pallidoansotomy sparing the overwhelming mass of the pallidum was accomplished. This was due to a unique and individually tailored stereotactic technique even allowing bilateral staged pallidotomies. In 1962, the long-term effects (3-year follow-up on average) of the first 18 out of 36 patients with staged bilateral pallidotomies were reported in great detail. Meticulous descriptions of each case indicate long-term improvements in parkinsonian rigidity and associated pain, as well as posture, gait, and akinesia (e.g., improved repetitive movements and arm swinging). Alleviation of tremor was found to require larger lesions than needed for suppression of rigidity. No improvement in speech, drooling, or seborrhea was observed. By 1962, the team had operated 13 patients with postencephalitic oculogyric crises with remarkable results (mean follow-up: 5 years). They also described alleviation of nonparkinsonian hyperkinetic disorders (e.g., hemiballism and chorea) with pallidotomy. The reported rates for surgical mortality and other complications had been remarkably low, even if compared to those reported after the revival of pallidotomy by Laitinen in the post-levodopa era. This applies also to bilateral pallidotomy performed with a positive risk-benefit ratio that has remained unparalleled to date. The intricate history of pallidotomy for movement disorders is incomplete without an appreciation of the achievements of the Göttingen group.
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Affiliation(s)
- Wolfgang Hamel
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany,
| | - Johannes A Köppen
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dieter Müller
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marwan Hariz
- Unit of Functional Neurosurgery, UCL Institute of Neurology, London, United Kingdom.,Department of Clinical Neuroscience, Umeå University, Umeå, Sweden
| | - Christian K E Moll
- Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Paul Krack
- Department of Neurology, Inselspital, University Hospital Bern, Bern, Switzerland
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49
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Lenski M, Biczok A, Tonn JC, Kreth FW. Stereotactic Internal Shunt Placement in Congenital Intracranial Cysts. World Neurosurg 2018; 123:e670-e677. [PMID: 30576829 DOI: 10.1016/j.wneu.2018.11.250] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Treatment of symptomatic intracranial cysts remains a controversial issue. We present a risk/benefit profile of a minimally invasive, not yet described, stereotactic internal shunt implantation technique. The provided data might serve as a reference against which other treatment modalities could be compared. METHODS From our prospective database, we identified a consecutive series of patients with symptomatic, untreated cysts who had undergone internal shunting from 2009 to 2017. We estimated the rates of clinical symptom improvement (RCSI), cyst reduction, total complications, and long-term complications. A minimal follow-up of 6 months was required. The prognostic factors were obtained from logistic regression models. Cyst recurrence-free survival was calculated using the Kaplan-Meier method. The outcomes data were compared with those from reported alternative treatment strategies using χ2 statistics. RESULTS We included 38 patients. The cyst locations differed greatly and included the cerebellum (n = 2), brainstem (n = 5), and pineal area (n = 4). Cyst-associated hydrocephalus (n = 6) resolved after treatment. The 2-year cyst recurrence-free survival rate was 97%. The RCSI and rate of cyst reduction, total complications, and long-term complications was 91%, 97%, 11%, and 2.6%, respectively. We did not find any risk factors associated with the rate of total complications. The RCSI and rate of total and long-term complications compared favorably (P < 0.01) with the corresponding estimates of alternative treatments (P < 0.01). CONCLUSIONS The described stereotactic internal shunt implantation technique is safe and can be successfully applied for treatment of cystic formations in any location in the brain.
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Affiliation(s)
- Markus Lenski
- Department of Neurosurgery, Klinikum der Universität München, Campus Großhadern, Munich, Germany.
| | - Annamaria Biczok
- Department of Neurosurgery, Klinikum der Universität München, Campus Großhadern, Munich, Germany
| | - Jörg-Christian Tonn
- Department of Neurosurgery, Klinikum der Universität München, Campus Großhadern, Munich, Germany
| | - Friedrich-Wilhelm Kreth
- Department of Neurosurgery, Klinikum der Universität München, Campus Großhadern, Munich, Germany
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50
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Bernstock JD, Wright Z, Bag AK, Gessler F, Gillespie GY, Markert JM, Friedman GK, Johnston JM. Stereotactic Placement of Intratumoral Catheters for Continuous Infusion Delivery of Herpes Simplex Virus -1 G207 in Pediatric Malignant Supratentorial Brain Tumors. World Neurosurg 2018; 122:e1592-e1598. [PMID: 30481622 DOI: 10.1016/j.wneu.2018.11.122] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/13/2018] [Accepted: 11/15/2018] [Indexed: 01/20/2023]
Abstract
OBJECTIVE The engineered herpes simplex virus-1 G207, is a promising therapeutic option for central nervous system tumors. The first-ever pediatric phase 1 trial of continuous-infusion delivery of G207 via intratumoral catheters for recurrent or progressive malignant brain tumors is ongoing. In this article, we describe surgical techniques for the accurate placement of catheters in multiple supratentorial locations and perioperative complications associated with such procedures. METHODS A prospective study of G207 in children with recurrent malignant supratentorial tumors is ongoing. Preoperative stereotactic protocol magnetic resonance imaging was performed, and catheter trajectories planned using StealthStation planning software. Children underwent placement of 3-4 silastic catheters using a small incision burr hole and the Vertek system. Patients had a preinfusion computed tomography scan to confirm correct placement of catheters. RESULTS Six children underwent implantation of 3-4 catheters. Locations of catheter placement included frontal, temporal, parietal, and occipital lobes, and the insula and thalamus. There were no clinically significant perioperative complications. Postoperative computed tomography scans coupled with preoperative MRI scans demonstrated accurate placement of 21 of 22 catheters, with 1 misplaced catheter pulled back to an optimal location at the bedside. One patient had hemorrhage along the catheter tract that was clinically asymptomatic. Another patient had cerebrospinal fluid leak from a biopsy incision 9 days after surgery that was oversewn without complication. CONCLUSIONS The placement of multiple intratumoral catheters in pediatric patients with supratentorial tumors via frameless stereotactic techniques is feasible and safe. Intratumoral catheters provide a potentially effective route for the delivery of G207 and may be employed in other trials utilizing oncolytic virotherapy for brain tumors.
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Affiliation(s)
- Joshua D Bernstock
- Medical Scientist Training Program, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Zachary Wright
- Department of Neurosurgery, Division of Pediatric Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Asim K Bag
- Department of Radiology, Neuroradiology Section, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Florian Gessler
- Department of Neurosurgery, Goethe University Frankfurt, Frankfurt am Main, Germany
| | | | - James M Markert
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Gregory K Friedman
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Alabama at Birmingham, Birmingham, Alabama, USA; Department of Neurosurgery, Division of Pediatric Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA.
| | - James M Johnston
- Department of Neurosurgery, Division of Pediatric Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
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