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Kim JW, Kim SK. The role of surgery for optic pathway gliomas in the era of precision medicine. Childs Nerv Syst 2024:10.1007/s00381-024-06450-4. [PMID: 38743267 DOI: 10.1007/s00381-024-06450-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
Optic pathway gliomas (OPGs) represent a unique subset of brain tumours that primarily affect the paediatric population. Traditionally, these tumours are managed conservatively due to their location to and association with vital structures. This article explores the evolving role of surgery in the management of OPGs, particularly in the context of advancements in precision medicine. The advent of targeted therapy, especially for tumours with specific genetic alterations, such as BRAF V600E mutations, has revolutionized the treatment landscape, offering new avenues for patient-specific therapy. However, surgery still plays a crucial role, especially for debulking in cases of hydrocephalus or when standard therapies are ineffective. Advances in surgical techniques, including neuronavigation, endoscopic approaches, and intraoperative neurophysiological monitoring, have enhanced the safety and efficacy of operative interventions. Despite these developments, the complexity of OPGs necessitates a multidisciplinary approach, focusing on long-term outcomes and quality of life. Future research is needed to further elucidate the role of surgery in an era increasingly dominated by molecular genetics and targeted therapies.
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Affiliation(s)
- Joo Whan Kim
- Division of Paediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, 03080, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Seung-Ki Kim
- Division of Paediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, 03080, 101 Daehak-ro, Jongno-gu, Seoul, Republic of Korea.
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He Z, Zhu CXL, Chan DTM, Cheung TCY, Ng HK, Mok VCT, Poon WS. Diagnostic Accuracy and Field for Improvement of Frameless Stereotactic Brain Biopsy: A Focus on Nondiagnostic Cases. J Neurol Surg A Cent Eur Neurosurg 2024; 85:48-61. [PMID: 36481998 DOI: 10.1055/a-1994-8033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND The diagnostic accuracy of frameless stereotactic brain biopsy has been reported, but there is limited literature focusing on the reasons for nondiagnostic cases. In this study, we evaluate the diagnostic accuracy of frameless stereotactic brain biopsy, compare it with the current international standard, and review the field for improvement. METHODS This is a retrospective analysis of consecutive, prospectively collected frameless stereotactic brain biopsies from 2007 to 2020. We evaluated the diagnostic accuracy of the frameless stereotactic brain biopsies using defined criteria. The biopsy result was classified as conclusive, inconclusive, or negative, based on the pathologic, radiologic, and clinical diagnosis concordance. For inconclusive or negative results, we further evaluated the preoperative planning and postoperative imaging to review the errors. A literature review for the diagnostic accuracy of frameless stereotactic biopsy was performed for the validity of our results. RESULTS There were 106 patients with 109 biopsies performed from 2007 to 2020. The conclusive diagnosis was reached in 103 (94.5%) procedures. An inconclusive diagnosis was noted in four (3.7%) procedures and the biopsy was negative in two (1.9%) procedures. Symptomatic hemorrhage occurred in one patient (0.9%). There was no mortality in our series. Registration error (RE) and inaccurate targeting occurred in three trigonal lesions (2.8%), sampling of the nonrepresentative part of the lesion occurred in two cases (1.8%), and one biopsy (0.9%) for lymphoma was negative due to steroid treatment. The literature review suggested that our diagnostic accuracy was comparable with the published literature. CONCLUSION The frameless stereotactic biopsy is a safe procedure with high diagnostic accuracy only if meticulous preoperative planning and careful intraoperative registration is performed. The common pitfalls precluding a conclusive diagnosis are RE and biopsies at nonrepresentative sites.
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Affiliation(s)
- Zhexi He
- Department of Surgery, Division of Neurosurgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
- Department of Neurosurgery, Tuen Mun Hospital, Hong Kong, China
| | - Cannon Xian Lun Zhu
- Department of Surgery, Division of Neurosurgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Danny Tat Ming Chan
- Department of Surgery, Division of Neurosurgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Tom Chi Yan Cheung
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Ho-Keung Ng
- Department of Anatomical & Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Vincent Chung Tong Mok
- Department of Medicine and Therapeutics, Division of Neurology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Wai Sang Poon
- Department of Surgery, Division of Neurosurgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
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Teping F, Oertel J. The minimally invasive transventricular endoscopic approach to third ventricular lesions in pediatric patients-all-rounder with limitations? Childs Nerv Syst 2023; 39:3381-3389. [PMID: 37515720 PMCID: PMC10684406 DOI: 10.1007/s00381-023-06096-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
INTRODUCTION The surgical management of third ventricular lesions poses unique challenges, requiring careful consideration of various approaches and techniques. This study focuses on the transventricular transforaminal endoscopic approach and aims to provide insights into its indications, limitations, technical nuances, and potential complications in pediatric patients. METHODS A retrospective analysis was conducted using data from a 13-year period on pediatric patients who were subjected to transforaminal endoscopic surgery for third ventricular lesions. The study utilized a prospectively maintained internal database, extracting demographic data, preoperative assessment, surgical details, and postoperative follow-up information. The surgical technique is presented in detail, and exemplary case reports highlight relevant surgical considerations. RESULTS Out of 578 endoscopic transforaminal procedures, 24 surgeries were performed on pediatric patients with third ventricular lesions. Performed procedures consisted of cyst resection (13 cases), solid tumor resection (4 cases), and tumor biopsies with CSF pathway restoration (7 cases). The mean age at the time of surgery was 7.6 years. Postoperatively, 14 patients showed transient nausea and vomiting (58.3%); 10 patients showed pneumocephalus on postoperative MRI (41.7%). No emergency postoperative re-interventions nor perioperative mortality were observed. CONCLUSION The endoscopic transventricular transforaminal approach is a safe approach for lesion resection, CSF pathway restoration, and tumor biopsy in pediatric patients with third ventricle lesions. The author's results support the use of this minimally invasive technique as an alternative to more extensive approaches, particularly to the interforniceal interhemispheric approach. However, surgical success is highly dependent to the individual surgeon's experience and moreover to a suitable indication setting. Careful preoperative planning and knowledge of the approaches' pro and cons is mandatory for successful application of this approach.
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Affiliation(s)
- Fritz Teping
- Department of Neurosurgery, Faculty of Medicine, Saarland University, Kirrbergerstraße, Building 90.5, D-66421, Homburg, Germany
| | - Joachim Oertel
- Department of Neurosurgery, Faculty of Medicine, Saarland University, Kirrbergerstraße, Building 90.5, D-66421, Homburg, Germany.
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Takeda J, Nonaka M, Li Y, Isozaki H, Kamei T, Hashiba T, Yoshimura K, Asai A. 5-Aminolevulinic acid fluorescence-guided endoscopic surgery for deep-seated intraparenchymal tumors. Br J Neurosurg 2023:1-5. [PMID: 37997374 DOI: 10.1080/02688697.2023.2283129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/08/2023] [Indexed: 11/25/2023]
Abstract
AIM The usefulness of 5-aminolevulinic acid (5-ALA) fluorescence-assisted surgery for maximum resection of malignant gliomas has been established. However, its usefulness when combined with endoscopic surgery for deep-seated tumors has not been well established. In this study, whether 5-ALA photodynamic diagnosis (PDD) is feasible and useful for endoscopic surgery was investigated. METHODS A specially designed endoscope for PDD that delivers white light or blue light (375-440 nm) as excitation light was used. The fluorescence emitted by the tumor was evaluated in the cavity during resection or at the tip of the sheath during biopsy. The intensity of fluorescence was classified into three categories: strong, vague, and negative. RESULTS A total of 30 intraparenchymal tumors were observed with a neuroendoscope and 5-ALA PDD; 16 patients underwent resection, and 14 underwent biopsy. Overall, 67% (20/30) of tumors showed positive fluorescence of protoporphyrin IX. High-grade gliomas (HGGs) including glioblastoma (GBM) and anaplastic astrocytoma (AA) showed strong fluorescence in 47% (7/15), vague fluorescence in 33% (5/15), and negative fluorescence in 20% (3/15) of cases. Low-grade gliomas (LGGs) showed vague fluorescence in 33% (1/3) and negative fluorescence in 67% (2/3). Diffuse large B-cell lymphoma (DLBCL) showed vague fluorescence in 38% (3/8) and negative fluorescence in 63% (5/8). Metastatic tumors showed strong fluorescence in 25% (1/4) and vague fluorescence in 75% (3/4). In the comparison of fluorescence evaluation, a significant difference was observed only in the comparison between HGGs and DLBCL (p = 0.049). CONCLUSION These results suggest that 5-ALA PDD-assisted endoscopic surgery is feasible and useful for deep-seated intraparenchymal tumors.
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Affiliation(s)
- Junichi Takeda
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Masahiro Nonaka
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Yi Li
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Haruna Isozaki
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Takamasa Kamei
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Tetsuo Hashiba
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Kunikazu Yoshimura
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
| | - Akio Asai
- Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan
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Takeda J, Nonaka M, Li Y, Isozaki H, Kamei T, Hashiba T, Asai A. 5-Aminolevulinic acid fluorescence-guided endoscopic surgery for intraventricular tumors. Surg Neurol Int 2022; 13:302. [PMID: 35928327 PMCID: PMC9345107 DOI: 10.25259/sni_488_2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/26/2022] [Indexed: 11/06/2022] Open
Abstract
Background: In recent years, the efficacy of 5-aminolevulinic acid photodynamic diagnosis (5-ALA PDD) has been reported for various types of brain tumors, including malignant glioma. In addition, many reports have been published on the usefulness of neuroendoscopic surgery for intraventricular lesions. However, no systematic report is available on the combined use of 5-ALA PDD and neuroendoscopy for various intraventricular tumors. Methods: We report 17 consecutive patients with intraventricular tumors. All patients received oral 5-ALA preoperatively and underwent endoscopic surgical treatment (resection or biopsy). We use a rigid endoscope with a built-in PDD system for intraoperative observation. Results: Seven resections and 10 biopsies were performed. Histopathological diagnosis was confirmed in all 17 cases. Gross total resection was achieved in six of seven cases. The fluorescence positivity rates for each tumor were glioblastoma 100% (2/2), low-grade glioma 67% (2/3), subependymoma 0% (0/1), medulloblastoma 100% (1/1), pineoblastoma 0% (0/1), germ cell tumor 75% (3/4), diffuse large B-cell lymphoma 33% (1/3), and metastatic tumor 100% (2/2). Conclusion: Our method has the potential to improve detection of residual tumors in blind spots and deep areas, as well as the accuracy and safety of biopsy procedures for intraventricular lesions that are difficult to view and treat under a microscope.
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He L, He D, Qi Y, Zhou J, Yuan C, Chang H, Wang Q, Li G, Shao Q. Stereotactic Biopsy for Brainstem Lesions: A Meta-analysis with Noncomparative Binary Data. Cancer Control 2021; 28:10732748211059858. [PMID: 34875878 PMCID: PMC8670786 DOI: 10.1177/10732748211059858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Objectives To evaluate the diagnostic yield and safety of brainstem stereotactic biopsy
for brainstem lesions. Methods We performed a meta-analysis of English articles retrieved from the PubMed,
Web of Science, Cochrane Library, and APA psycInfo databases up to May 12,
2021. A binary fixed-effect model, the inverse variance method, or a binary
random-effect model, the Dersimonian Laird method, were utilized for pooling
the data. This meta-analysis was registered with INPLASY,
INPLASY202190034. Findings A total of 41 eligible studies with 2792 participants were included. The
weighted average diagnostic yield was 97.0% (95% confidential interval [CI],
96.0-97.9%). The weighted average proportions of temporary complications,
permanent deficits, and deaths were 6.2% (95% CI, 4.5–7.9%), .5% (95% CI,
.2–.8%), and .3% (95% CI, .1–.5%), respectively. The subgroup analysis
indicated a nearly identical weighted average diagnostic yield between
MRI-guided stereotactic biopsy and CT-guided stereotactic biopsy (95.9% vs
95.8%) but slightly increased proportions of temporary complications (7.9%
vs 6.0%), permanent deficits (1.9% vs .2%), and deaths (1.1% vs .4%) in the
former compared to the latter. Moreover, a greater weighted average
diagnostic yield (99.2% vs 97.6%) and lower proportions of temporary
complications (5.1% vs 6.8%) and deaths (.7% vs 1.5%) were shown in the
pediatric patient population than in the adult patient population. Conclusions Brainstem stereotactic biopsy demonstrates striking accuracy plus satisfying
safety in the diagnosis of brainstem lesions. The diagnostic yield,
morbidity, and mortality mildly vary based on the diversity of assistant
techniques and subject populations.
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Affiliation(s)
- Lin He
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Dongjie He
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Yuhong Qi
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Jiejing Zhou
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Canliang Yuan
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Hao Chang
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Qiming Wang
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Gaiyan Li
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
| | - Qiuju Shao
- Department of Radiotherapy, Tangdu Hospital, 56697Air Force Military Medical University, Xi'an, China
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