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Guo ZQ, Xia XY, Cao D, Chen X, He Y, Wang BF, Guo DS, Chen J. A nomogram for predicting the risk of major postoperative complications for patients with meningioma. Neurosurg Rev 2023; 46:288. [PMID: 37907646 DOI: 10.1007/s10143-023-02198-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 09/25/2023] [Accepted: 10/22/2023] [Indexed: 11/02/2023]
Abstract
PURPOSE To identify risk factors for major postoperative complications in meningioma patients and to construct and validate a nomogram that identify patients at high risk of these complications. METHODS The medical records of meningioma patients who underwent surgical resection in our hospital from January 2018 to December 2020 were collected. The patients were divided into a training set (815 cases from the main campus in 2018 and 2019) and a validation set (300 cases from two other campuses in 2020). Major postoperative complications were defined as any new neurological deficits and complications classified as Clavien-Dindo Grading (CDG) II or higher. Univariate and multivariate analyses were conducted using the training set to identify independent risk factors. A nomogram was constructed based on these results. And then validated the nomogram through bootstrap re-sampling in both the training and validation sets. The concordance index (C-index) and the area under the curve (AUC) were used to assess the discriminative ability of the nomogram. The Hosmer-Lemeshow test was performed to evaluate the goodness-of-fit. The optimal cutoff point for the nomogram was calculated using Youden's index. RESULTS In the training set, 135 cases (16.56%) experienced major postoperative complications. The independent risk factors identified were male sex, recurrent tumors, American Society of Anesthesiologists (ASA) class III-IV, preoperative Karnofsky Performance Scale (KPS) score < 80, preoperative serum albumin < 35 g/L, tumor in the skull base or central sulcus area, subtotal tumor resection (STR), allogeneic blood transfusion, and larger tumor size. A nomogram was constructed based on these risk factors. It demonstrated good predictive performance, with a C-index of 0.919 for the training set and 0.872 for the validation set. The area under the curve (AUC) > 0.7 indicated satisfactory discriminative ability. The Hosmer-Lemeshow test showed no significant deviation from the predicted probabilities. And the cutoff for nomogram total points was about 200 (specificity 0.881 and sensitivity 0.834). CONCLUSIONS The constructed nomogram demonstrated robust predictive performance for major postoperative complications in meningioma patients. This model can be used by surgeons as a reference in clinical decision-making.
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Affiliation(s)
- Zheng-Qian Guo
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Yu Xia
- Department of Psychology, Wuchang Hospital, Wuhan, China
| | - Dan Cao
- Department of Neurocritical Care Unit, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Xu Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue He
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bao-Feng Wang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Dong-Sheng Guo
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Jian Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Adachi K, Hasegawa M, Hirose Y. Cerebrospinal fluid leakage prevention using the anterior transpetrosal approach with versus without postoperative spinal drainage: an institutional cohort study. Neurosurg Rev 2023; 46:137. [PMID: 37286772 DOI: 10.1007/s10143-023-02045-w] [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: 02/25/2023] [Revised: 04/06/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
The efficacy of spinal drain (SD) placement for cerebrospinal fluid (CSF) leakage prevention after the anterior transpetrosal approach (ATPA) remains unclear. Thus, we aimed to assess whether postoperative SD placement improved postoperative CSF leakage after a skull base reconstruction procedure using a small abdominal fat and pericranial flap and clarify whether bed rest with postoperative SD placement increased the length of hospital stay. This retrospective cohort study included 48 patients who underwent primary surgery using ATPA between August 2011 and February 2022. All cases underwent SD placement preoperatively. First, we evaluated the necessity of SD placement for CSF leakage prevention by comparing the postoperative routine continuous SD placement period to a period in which the SD was removed immediately after surgery. Second, the effects of different SD placement durations were evaluated to understand the adverse effects of SD placement requiring bed rest. No patient with or without postoperative continuous SD placement developed CSF leakage. The median postoperative time to first ambulation was 3 days shorter (P < 0.05), and the length of hospital stay was 7 days shorter (P < 0.05) for patients who underwent SD removal immediately after surgery (2 and 12 days, respectively) than for those who underwent SD removal on postoperative day 1 (5 and 19 days, respectively). This skull base reconstruction technique was effective in preventing CSF leakage in patients undergoing ATPA, and postoperative SD placement was not necessary. Removing the SD immediately after surgery can lead to earlier postoperative ambulation and shorter hospital stay by reducing medical complications and improving functional capacity.
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Affiliation(s)
- Kazuhide Adachi
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Aichi, Toyoake City, 470-1192, Japan.
| | - Mitsuhiro Hasegawa
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Aichi, Toyoake City, 470-1192, Japan
| | - Yuichi Hirose
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Aichi, Toyoake City, 470-1192, Japan
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May M, Sedlak V, Pecen L, Priban V, Buchvald P, Fiedler J, Vaverka M, Lipina R, Reguli S, Malik J, Netuka D, Benes V. Role of risk factors, scoring systems, and prognostic models in predicting the functional outcome in meningioma surgery: multicentric study of 552 skull base meningiomas. Neurosurg Rev 2023; 46:124. [PMID: 37219634 PMCID: PMC10205827 DOI: 10.1007/s10143-023-02004-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/20/2023] [Accepted: 04/16/2023] [Indexed: 05/24/2023]
Abstract
Despite the importance of functional outcome, only a few scoring systems exist to predict neurologic outcome in meningioma surgery. Therefore, our study aims to identify preoperative risk factors and develop the receiver operating characteristics (ROC) models estimating the risk of a new postoperative neurologic deficit and a decrease in Karnofsky performance status (KPS). A multicentric study was conducted in a cohort of 552 consecutive patients with skull base meningiomas who underwent surgical resection from 2014 to 2019. Data were gathered from clinical, surgical, and pathology records as well as radiological diagnostics. The preoperative predictive factors of functional outcome (neurologic deficit, decrease in KPS) were analyzed in univariate and multivariate stepwise selection analyses. Permanent neurologic deficits were present in 73 (13.2%) patients and a postoperative decrease in KPS in 84 (15.2%). Surgery-related mortality was 1.3%. A ROC model was developed to estimate the probability of a new neurologic deficit (area 0.74; SE 0.0284; 95% Wald confidence limits (0.69; 0.80)) based on meningioma location and diameter. Consequently, a ROC model was developed to predict the probability of a postoperative decrease in KPS (area 0.80; SE 0.0289; 95% Wald confidence limits (0.74; 0.85)) based on the patient's age, meningioma location, diameter, presence of hyperostosis, and dural tail. To ensure an evidence-based therapeutic approach, treatment should be founded on known risk factors, scoring systems, and predictive models. We propose ROC models predicting the functional outcome of skull base meningioma resection based on the age of the patient, meningioma size, and location and the presence of hyperostosis and dural tail.
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Affiliation(s)
- Michaela May
- Department of Neurosurgery and Neurooncology, First Faculty of Medicine, Charles University and Military University Hospital, U Vojenske nemocnice 1200, 16902, Prague, Czech Republic.
- First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
| | - Vojtech Sedlak
- Department of Radiology, Military University Hospital, Prague, Czech Republic
| | - Ladislav Pecen
- Institute of Computer Science, The Czech Academy of Sciences, Prague, Czech Republic
| | - Vladimir Priban
- Department of Neurosurgery, Pilsen University Hospital, Pilsen, Czech Republic
| | - Pavel Buchvald
- Department of Neurosurgery, Liberec Hospital, Liberec, Czech Republic
| | - Jiri Fiedler
- Department of Neurosurgery, Ceske Budejovice Hospital, Ceske Budejovice, Czech Republic
| | - Miroslav Vaverka
- Department of Neurosurgery, University Hospital Olomouc, Olomouc, Czech Republic
| | - Radim Lipina
- Department of Neurosurgery, University Hospital Ostrava, Ostrava, Czech Republic
| | - Stefan Reguli
- Department of Neurosurgery, University Hospital Ostrava, Ostrava, Czech Republic
| | - Jozef Malik
- Department of Radiology, Military University Hospital, Prague, Czech Republic
| | - David Netuka
- Department of Neurosurgery and Neurooncology, First Faculty of Medicine, Charles University and Military University Hospital, U Vojenske nemocnice 1200, 16902, Prague, Czech Republic
- First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Vladimir Benes
- Department of Neurosurgery and Neurooncology, First Faculty of Medicine, Charles University and Military University Hospital, U Vojenske nemocnice 1200, 16902, Prague, Czech Republic
- First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
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Byun P, Roh Y, Lee H, Jeong J. Use of Computed Tomography and Magnetic Resonance Angiograms Combined with a 3D Surgical Guide in an Elderly Cat with an Occipital Lobe Meningioma. Vet Sci 2023; 10:vetsci10040264. [PMID: 37104418 PMCID: PMC10146195 DOI: 10.3390/vetsci10040264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/18/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
We present a case of occipital lobe meningioma resection in an elderly cat. The surgery was performed with the goal of avoiding major bleeding. An 11-year-old castrated indoor-only male Persian Chinchilla (5.5 kg) was presented with a month-long history of progressive tetraparesis for a left occipital lobe meningioma. Magnetic resonance imaging revealed a T2-weighted heterogeneously hyperintensity and a T1-weighted well-contrast enhancing extradural mass in the left occipital lobe of the brain. Cerebral angiographic data were obtained using magnetic resonance (MRA) and computed tomography angiography (CTA). Advanced angiograms and virtual reconstruction of images revealed that the tumor was surrounded by the caudal parasagittal meningeal vein. A left caudal rostrotentorial craniotomy and en bloc resection of the tumor were performed, and histopathology revealed a meningioma. Complete neurological recovery was achieved within 10 days after surgery. To the best of our knowledge, this is the first case report describing CTA and MRA findings and favorable clinical outcomes after surgical management of a brain meningioma without severe perioperative complications.
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Affiliation(s)
- Pillmoo Byun
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yoonho Roh
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Haebeom Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jaemin Jeong
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
- Correspondence:
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Adachi K, Hasegawa M, Hirose Y. Epidural and subdural interdural approach to the lateral wall of the cavernous sinus for preserving the laterocavernous sinus in trigeminal schwannoma. Neurosurg Rev 2022; 46:27. [PMID: 36576615 DOI: 10.1007/s10143-022-01934-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/22/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
Evacuation of middle fossa trigeminal schwannomas (TS) warrants a subtemporal interdural approach through the lateral wall of the cavernous sinus (CS). The dura comprises the dura propria, which follows the trigeminal nerve and develops into the epineurium, and periosteal layer. The interdural approach involves peeling off the dura propria and exposing the epineural sheath. The venous route around the CS is often obstructed due to TS progression. The interdural approach based on venous route preservation remains to be discussed. The laterocavernous sinus (LCS) is formed in these layers, draining to either the medial or lateral route. In the lateral route, the LCS drains to the pterygoid plexus via the middle cranial fossa foramen. Exposure of the interdural space disturbs the lateral route's venous flow. We describe an operative strategy for venous route preservation in TS via the LCS lateral route. The venous route can be preserved by peeling off the dura propria from the posterior end of the foramen ovale short of the venous drainage route to the pterygoid plexus epidurally and then cutting from the middle cranial fossa dura posterior to the venous route subdurally to the exposed interdural space. This technique helps in avoiding postoperative venous complications.
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Affiliation(s)
- Kazuhide Adachi
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Toyoake City, Aichi, 470-1192, Japan.
| | - Mitsuhiro Hasegawa
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Toyoake City, Aichi, 470-1192, Japan
| | - Yuichi Hirose
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Toyoake City, Aichi, 470-1192, Japan
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Thommen R, Kazim SF, Rumalla K, Kassicieh AJ, Kalakoti P, Schmidt MH, McKee RG, Hall DE, Miskimins RJ, Bowers CA. Preoperative frailty measured by risk analysis index predicts complications and poor discharge outcomes after Brain Tumor Resection in a large multi-center analysis. J Neurooncol 2022; 160:285-297. [PMID: 36316568 DOI: 10.1007/s11060-022-04135-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/14/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE To evaluate the independent effect of frailty, as measured by the Risk Analysis Index-Administrative (RAI-A) for postoperative complications and discharge outcomes following brain tumor resection (BTR) in a large multi-center analysis. METHODS Patients undergoing BTR were queried from the National Surgical Quality Improvement Program (NSIQP) for the years 2015 to 2019. Multivariable logistic regression was performed to evaluate the independent associations between frailty tools (age, 5-factor modified frailty score [mFI-5], and RAI-A) on postoperative complications and discharge outcomes. RESULTS We identified 30,951 patients who underwent craniotomy for BTR; the median age of our study sample was 59 (IQR 47-68) years old and 47.8% of patients were male. Overall, increasing RAI-A score, in an overall stepwise fashion, was associated with increasing risk of adverse outcomes including in-hospital mortality, non-routine discharge, major complications, Clavien-Dindo Grade IV complication, and extended length of stay. Multivariable regression analysis (adjusting for age, sex, BMI, non-elective surgery status, race, and ethnicity) demonstrated that RAI-A was an independent predictor for worse BTR outcomes. The RAI-A tiers 41-45 (1.2% cohort) and > 45 (0.3% cohort) were ~ 4 (Odds Ratio [OR]: 4.3, 95% CI: 2.1-8.9) and ~ 9 (OR: 9.5, 95% CI: 3.9-22.9) times more likely to have in-hospital mortality compared to RAI-A 0-20 (34% cohort). CONCLUSIONS AND RELEVANCE Increasing preoperative frailty as measured by the RAI-A score is independently associated with increased risk of complications and adverse discharge outcomes after BTR. The RAI-A may help providers present better preoperative risk assessment for patients and families weighing the risks and benefits of potential BTR.
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Affiliation(s)
- Rachel Thommen
- School of Medicine, New York Medical College, Valhalla, NY 10595, USA
- Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM 87131, USA
| | - Syed Faraz Kazim
- Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM 87131, USA
- Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131, USA
| | - Kavelin Rumalla
- Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM 87131, USA
- Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131, USA
| | - Alexander J Kassicieh
- Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM 87131, USA
- Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131, USA
| | - Piyush Kalakoti
- Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Meic H Schmidt
- Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM 87131, USA
- Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131, USA
| | - Rohini G McKee
- Department of Surgery, University of New Mexico Hospital (UNMH), Albuquerque, NM 87131, USA
| | - Daniel E Hall
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Wolff Center at UPMC, Pittsburgh, PA, USA
- Center for Health Equity Research and Promotion, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, USA
- Geriatric Research Education and Clinical Center, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, USA
| | - Richard J Miskimins
- Department of Surgery, University of New Mexico Hospital (UNMH), Albuquerque, NM 87131, USA
| | - Christian A Bowers
- Bowers Neurosurgical Frailty and Outcomes Data Science Lab, Albuquerque, NM 87131, USA.
- Department of Neurosurgery, University of New Mexico, Albuquerque, NM 87131, USA.
- Department of Neurosurgery MSC10 5615, University of New Mexico, Albuquerque, NM 81731, USA.
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Byun HK, Chang WI, Lee JH, Park CK, Kim IA, Kim CY, Cho J, Kim EH, Chang JH, Kang SG, Moon JH, Lee SH, Lee JJB, Kim IH, Suh CO, Wee CW, Yoon HI. Adjuvant Radiotherapy Versus Surveillance for Grade 2 Intracranial Meningiomas: A Multi-Institutional Propensity Score-Matched Study. Front Oncol 2022; 12:877244. [PMID: 35847889 PMCID: PMC9283569 DOI: 10.3389/fonc.2022.877244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose We aimed to compare the outcomes of adjuvant radiotherapy (ART) and surveillance in patients with grade 2 meningiomas (MNG2) who underwent surgical resection. Materials and Methods Data from four hospitals, in which patients aged ≥18 years underwent Simpson grade 1−4 surgical resection for newly diagnosed MNG2 between 1998 and 2018, were examined in this multicenter retrospective cohort study. Patients receiving ART with conventional fractionation were compared with those undergoing surveillance. Progression-free survival (PFS), progression/recurrence (P/R) were evaluated. Results This study included 518 patients, 158 of whom received ART. The median follow-up duration was 64.9 months. In the total cohort, ART was independently associated with significantly improved PFS (HR, 0.35; 95% CI, 0.23–0.55; P<0.001) and P/R (HR, 0.30; 95% CI, 0.18–0.48; P<0.001). In the propensity score-matched cohort (n=143 in each group), the 5-year PFS rates were 80.8% and 57.7% (P=0.004), and the 5-year P/R rates were 16.5% and 40.0% (P=0.002) in the ART and surveillance groups, respectively. After gross total resection, the 5-year PFS (85.0% vs. 64.7%; P=0.020) and P/R rates (15.2% vs. 32.0%; P=0.035) were significantly better in the ART group than in the surveillance group. A model for P/R was developed using recursive partitioning analysis with surgical extent, tumor size, and Ki-67 index. ART reduced the risk of P/R in the low- (P=0.069), intermediate- (P=0.044), and high-risk groups (P<0.001). Local control was also significantly enhanced by ART among all the risk groups (all P<0.05). Conclusions ART significantly improved PFS and P/R in patients with MNG2, irrespective of the surgical extent, and can be recommended after gross total resection. A prognostic model may guide decision-making for the use of ART.
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Affiliation(s)
- Hwa Kyung Byun
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Won Ick Chang
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Joo Ho Lee
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Chul-Kee Park
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - In Ah Kim
- Department of Radiation Oncology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - Chae-Yong Kim
- Department of Neurosurgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Eui Hyun Kim
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong Hee Chang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Seok-Gu Kang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Ju Hyung Moon
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang Hyung Lee
- Department of Neurosurgery, Seoul Metropolitan Government - Seoul National University (SMG-SNU) Boramae Medical Center, Seoul, South Korea
| | - Jason Joon Bock Lee
- Department of Radiation Oncology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Il Han Kim
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Chang-Ok Suh
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
- Department of Radiation Oncology, Bundang CHA Medical Center, CHA University, Seongnam, South Korea
| | - Chan Woo Wee
- Department of Radiation Oncology, Seoul Metropolitan Government - Seoul National University (SMG-SNU) Boramae Medical Center, Seoul, South Korea
- Department of Radiation Oncology, Seoul National University College of Medicine, Seoul, South Korea
- *Correspondence: Chan Woo Wee, ; Hong In Yoon,
| | - Hong In Yoon
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: Chan Woo Wee, ; Hong In Yoon,
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Cole KL, Kazim SF, Thommen R, Alvarez-Crespo DJ, Vellek J, Conlon M, Tarawneh OH, Dicpinigaitis AJ, Dominguez J, McKee RG, Schmidt MH, Couldwell WT, Cole CD, Bowers CA. Association of baseline frailty status and age with outcomes in patients undergoing intracranial meningioma surgery: Results of a nationwide analysis of 5818 patients from the National Surgical Quality Improvement Program (NSQIP) 2015–2019. Eur J Surg Oncol 2022; 48:1671-1677. [DOI: 10.1016/j.ejso.2022.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/02/2022] [Accepted: 02/10/2022] [Indexed: 12/13/2022] Open
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Guinto G, Hernández E, Estrada E, Gallardo D, Kageyama M, Aréchiga N, Guinto-Nishimura GY. Petroclival Meningiomas: A Simple System That Could Help in Selecting the Approach. Oper Neurosurg (Hagerstown) 2021; 21:225-234. [PMID: 34293125 PMCID: PMC8440063 DOI: 10.1093/ons/opab224] [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] [Received: 01/17/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Petroclival meningiomas (PCM) represent a neurosurgical challenge due to their strategic location close to the brainstem. OBJECTIVE To assess the applicability of a retrosigmoid approach (RSA) by analyzing the degree of displacement of the middle cerebellar peduncle (MCP) elicited by PCM. METHODS Patients with PCM were prospectively included and divided into those whose imaging studies showed that the posterior end of the MCP was displaced by the tumor and were eligible for and underwent RSA (group A) and those who were not eligible for RSA and who underwent surgery via a posterior transpetrosal approach (group B). We compared tumor behavior, clinical characteristic of patients and surgical results. RESULTS Twenty patients with PCM were enrolled and allocated to group A (n = 15) or group B (n = 5). The clinical manifestations were more severe in group B; tumors in this group were larger and gross total removal was achieved in only 1 patient (20%). In comparison, in 12 cases on group A, tumors could be totally removed (80%) and all of these patients could recover their quality of life after surgery. CONCLUSION To our knowledge, this study is the first to consider displacement of the MCP when establishing a suitable surgical approach for PCM. Our results suggest that the RSA becomes increasingly suitable when peduncle displacement is greater. By using this method, it was also possible to identify two types of tumors: petroclivals (group A) and clivopetrosals (group B), that show some specific clinical and surgical differences.
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Affiliation(s)
- Gerardo Guinto
- Committee of Neurosurgery in the Universidad Nacional Autónoma de México, Mexico City, Mexico.,Centro Médico ABC, Mexico City, Mexico
| | - Eli Hernández
- Hospital Ángeles del Pedregal, Mexico City, Mexico.,Department of Neurosurgery, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Mexico City, Mexico
| | - Eric Estrada
- Department of Neurosurgery, Hospital de Especialidades del Centro Médico Nacional Siglo XXI, Mexico City, Mexico
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Roux A, Troude L, Baucher G, Bernard F, Pallud J, Roche PH. Does general comorbidity impact the postoperative outcomes after surgery for large and giant petroclival meningiomas? Neurosurg Rev 2021; 45:617-626. [PMID: 34117561 DOI: 10.1007/s10143-021-01580-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/17/2021] [Accepted: 06/07/2021] [Indexed: 02/07/2023]
Abstract
We assessed the role of the general condition of the patient in addition to usual anatomical reasoning to improve the prediction of personalized surgical risk for patients harboring a large and giant petroclival meningiomas. Single-center, retrospective observational study including adult patients surgically treated for a large and giant petroclival meningioma between January 2002 and October 2019 in a French tertiary neurosurgical skull-base center by one Neurosurgeon. Inclusion criteria were as follows: (1) histopathologically proven meningioma; (2) larger than 3 cm in diameter; (3) located within the upper two-thirds of the clivus, the inferior petrosal sinus, or the petrous apex around the trigeminal incisura, medial to the trigeminal nerve. Clinical and radiological characteristics were gathered preoperatively including ASA score, the modified frailty index, and the Charlson comorbidity index. Post-operative severe neurological and non-neurological complications were collected. A total of 102 patients harboring a large and giant petroclival meningioma were included. The rate of postoperative death was 3.0% related to a congestive heart failure (n = 1), a surgical site hematoma (n = 1), and an ischemic stroke (n = 1). A severe neurological impairment was found in 12.8% and a severe non-neurological morbidity was found in 4.0%. The overall rate of severe morbidity and mortality was 15.7% after large and giant petroclival meningioma surgery. The presence of brainstem peri-tumoral edema (adjusted OR, 4.83 [95% CI 1.84-7.52], p = 0.028) was independently associated with a history of postoperative severe neurological morbidity. Male gender (adjusted OR, 7.42 [95% CI 1.05-49.77], p = 0.044), major cardiovascular morbidity (adjusted OR, 9.5 [95% CI 1.05-86.72], p = 0.045), and an ASA score ≥ 2 (adjusted OR, 11.09 [95% CI 1.46-92.98], p = 0.038) were independently associated with a history of postoperative severe non-neurological morbidity. A modified frailty index ≥ 1 (adjusted OR, 3.13 [95% CI 1.07-9.93], p = 0.047) and a low neurosurgical experience (adjusted OR, 5.38 [95% CI 1.38-20.97], p = 0.007) were independently associated with a history of postoperative overall morbidity and mortality. Pre-operative cranial nerve deficits (adjusted OR, 4.77 [95% CI 1.02-23.31], p = 0.024) and gross total resection (adjusted OR, 10.72 [95% CI 1.72-66.90], p = 0.022) were independently associated with postoperative new cranial nerve deficits. This study suggests to add scores assessing the patient general condition in daily practice to improve the selection of patients eligible for surgery. Collaborative international multicenter studies will be necessary to confirm these results and allow their implementation in clinical routine.
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Affiliation(s)
- Alexandre Roux
- Service de Neurochirurgie, GHU Paris - Psychiatrie et Neurosciences - Hôpital Sainte-Anne, 1 rue Cabanis, 75014, Paris, France.
- Université de Paris, Sorbonne Paris Cité, Paris, France.
- Inserm, UMR1266, IMA-Brain, Institut de Psychiatrie Et Neurosciences de Paris, Paris, France.
| | - Lucas Troude
- Service de Neurochirurgie, CHU Nord, APHM-AMU, Marseille, France
| | | | - Florian Bernard
- Service de Neurochirurgie, CHU Angers, 49100, Angers, France
| | - Johan Pallud
- Service de Neurochirurgie, GHU Paris - Psychiatrie et Neurosciences - Hôpital Sainte-Anne, 1 rue Cabanis, 75014, Paris, France
- Université de Paris, Sorbonne Paris Cité, Paris, France
- Inserm, UMR1266, IMA-Brain, Institut de Psychiatrie Et Neurosciences de Paris, Paris, France
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11
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Kankane VK, Misra BK. Petroclival Meningioma: Management Strategy and Results in 21 st Century. Asian J Neurosurg 2021; 16:89-95. [PMID: 34211873 PMCID: PMC8202385 DOI: 10.4103/ajns.ajns_357_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/25/2020] [Accepted: 12/28/2020] [Indexed: 11/04/2022] Open
Abstract
Background Petroclival meningioma (PCM) is considered among the most difficult tumors to be treated by microneurosurgery because of its location and its relation to critical structures. The authors report on the outcome in a series of patients with PCM treated in the new millennium with a tailored approach of gross total excision or subtotal removal and adjuvant Gamma Knife Radiosurgery (GKR) depending on the particular case. Methods Between 2001 and 2017, 72 consecutive PCMs were operated in a single center by the senior surgeon. Clinical presentation, operative approaches, intraoperative findings, complications, and imaging findings were retrospectively analyzed. Postoperative outcome, adjuvant Gamma knife, and follow-up findings were reviewed. Results The average age was 47.95 years, and female-to-male ratio was 52:20. Cavernous sinus extension was present in 21 patients. The mean duration of follow-up was 66.65 months. Gross-total resection, near-total resection (NTR), and subtotal resection (STR) resection was achieved in 30, 24, and 18 (42.8%, 34.28%, and 25%) patients, respectively, with recurrences of 10%, 33%, and 50%, respectively. Twenty-two patients (18 STR and 4 NTR) had received postoperative GKR. Only four patients had recurrences following GKR. New cranial nerve deficits were more common in patients in whom a total resection was performed. There was no mortality. Conclusions Gross total excision had the best recurrence free rate though with a higher morbidity. Upfront GKR is advisable in patients with residual tumor, if the preoperative temporal course had a rapid symptomatology, to reduce recurrence. Wait and watch for a small intracavernous residue and radiosurgery on growth is also a valid option as long as follow-up is not suspect. A flexible approach of individualizing the treatment protocol for a given patient goes a long way toward optimal outcome.
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Affiliation(s)
- Vivek Kumar Kankane
- Department of Neurosurgery, G.R. Medical College, JAH Groups of Hospital, Gwalior, Madhya Pradesh, India
| | - Basant Kumar Misra
- Department Neurosurgery and Gamma Knife Radiosurgery, P.D. Hinduja National Hospital and Medical Research Center, Mumbai, Maharashtra, India
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12
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Adachi K, Hasegawa M, Hirose Y. Prediction of trigeminal nerve position based on the main feeding artery in petroclival meningioma. Neurosurg Rev 2020; 44:1173-1181. [PMID: 32424648 DOI: 10.1007/s10143-020-01313-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/09/2020] [Accepted: 04/29/2020] [Indexed: 10/24/2022]
Abstract
The trigeminal nerve is often displaced by petroclival meningioma (PCM) compression, making it difficult to locate during PCM surgery. This study investigated whether the deviated position of the trigeminal nerve could be easily predicted using the main tumor feeding artery. We retrospectively examined 32 patients who underwent surgery for primary PCM. The deviation of the trigeminal nerve was classified as either Type 1 (displacement toward the back of the cerebellar tentorium), Type 2 (toward the back of the superior petrosal sinus), Type 3 (toward the back of the petrous apex dura), Type 4 (toward the inferior aspect of the tumor), or Type 5 (toward the surface of the brain stem). The main feeding artery was determined by preoperative angiography. The trigeminal nerve was classified as Type 2 in 60% of cases where the proximal tentorial artery (TA) was the main feeding vessel. The nerve was Type 5 where the distal portion of the TA was the main feeding vessel (60% of the cases). The nerves were Type 3 and Type 4 where the proximal inferior lateral trunk (ILT) (60%) and distal ILT (75%), respectively, were the main feeding vessels. In 66.7% of the cases where the dorsal meningeal artery was the main feeding vessel, the nerve was Type 3. Type 1 classification applied in all cases where the ascending pharyngeal artery was the main feeding artery. The main feeding artery can be used to predict trigeminal nerve transposition during PCM surgery.
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Affiliation(s)
- Kazuhide Adachi
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Toyoake City, Aichi, 470-1192, Japan.
| | - Mituhiro Hasegawa
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Toyoake City, Aichi, 470-1192, Japan
| | - Yuichi Hirose
- Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98, Kutsugake Dengakugakubo, Toyoake City, Aichi, 470-1192, Japan
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13
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The pretemporal trans-cavernous trans-Meckel’s trans-tentorial trans-petrosal approach: a combo skill in treating skull base meningiomas. J Neurooncol 2020; 146:407-416. [DOI: 10.1007/s11060-019-03354-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/22/2019] [Indexed: 10/25/2022]
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14
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Kong CC, Kandasamy R, Haspani S, Idris Z, Abdullah JM. Incidence, Clinico-Radiological Features and Outcome of Skull Base versus Non-Skull Base Meningiomas Treated in Kuala Lumpur General Hospital: A Five-Year Experience. Malays J Med Sci 2019; 25:88-102. [PMID: 30899190 PMCID: PMC6422556 DOI: 10.21315/mjms2018.25.3.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 05/03/2018] [Indexed: 10/28/2022] Open
Abstract
Background Meningiomas are the most common intracranial tumours; they account for 13%-26% of all the primary intracranial tumours. Skull base meningiomas make up 25% of all meningiomas and are one of the most difficult intracranial tumours to be managed surgically. This is due to the fact that it is difficult to approach the lesions which are also close to vital structures such as cranial nerves and major blood vessels. Despite the abundance of these cases in Malaysia, local data on meningiomas is scarce. Methods This is a retrospective study consisting of 199 patients with meningiomas who have been operated at the Kuala Lumpur General Hospital from January 2010-December 2014. They were categorised into skull base and non-skull base groups. Demography, tumour characteristics, and patient outcomes were analysed. Kaplan-Meier survival curves as well as Cox hazard univariable and multivariable regressions for the possible predictors of survival were analysed. Results 97.5% of the patients (n = 194) had WHO grade I meningioma and only five patients had WHO grade II meningioma. There was a female predominance (n = 134; 67.3%), with a male-to-female ratio of 1:2. Some 27.1 % patients had skull base meningiomas. Patients with skull base meningiomas had poorer outcomes and discharge conditions (n = 23; 42.6% P < 0.01), in addition to higher risk of incomplete resections (n = 34; 63% P < 0.01). Multivariate cox hazard regressions showed that the skull base meningioma group had four times the risk of death of the non-skull base group. Conclusions Symptomatic meningiomas can be curative if the tumour is completely removed. Our study has revealed that skull base meningiomas which were operated locally had higher rates of incomplete resection and poorer surgical outcomes as compared to the non-skull base group. Patients with skull base meningiomas had four times the risk of death vis-à-vis non-skull base ones. More local studies are needed to look into skull base meningiomas for the improvement of its surgical outcomes.
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Affiliation(s)
- Chan Chee Kong
- Centre for Neuroscience Services and Research, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia.,Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia.,Department of Neurosurgery, Hospital Kuala Lumpur (HKL), Jalan Pahang, 53000 Kuala Lumpur, Malaysia
| | - Regunath Kandasamy
- Centre for Neuroscience Services and Research, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia.,Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Saffari Haspani
- Department of Neurosurgery, Hospital Kuala Lumpur (HKL), Jalan Pahang, 53000 Kuala Lumpur, Malaysia
| | - Zamzuri Idris
- Centre for Neuroscience Services and Research, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia.,Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Jafri Malin Abdullah
- Centre for Neuroscience Services and Research, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia.,Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Jalan Sultanah Zainab 2, 16150 Kubang Kerian, Kelantan, Malaysia
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15
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Adachi K, Hasegawa M, Hirose Y. Evaluation of Venous Drainage Patterns for Skull Base Meningioma Surgery. Neurol Med Chir (Tokyo) 2017; 57:505-512. [PMID: 28579577 PMCID: PMC5638777 DOI: 10.2176/nmc.ra.2016-0336] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The evaluation of venous drainage patterns prior to surgery for skull base meningioma is important owing to their deep location and the vulnerability of surrounding vascular structures. In recent years, the microsurgical skull base approach has matured as a surgical technique, making it an important option for reducing complications related to skull base meningioma surgery. In addition, knowledge of the venous anatomy can prevent venous drainage route disturbance and potentially life-threatening complications. Hence, this topic review aimed to provide an overview of normal venous anatomy as it relates to the microsurgical skull base approach, discuss known changes in venous drainage routes that are associated with the progression of skull base meningioma and the selection of an appropriate operative approach with the highest likelihood of preserving venous drainage structures.
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Affiliation(s)
- Kazuhide Adachi
- Department of Neurosurgery, School of Medicine, Fujita Health University
| | - Mitsuhiro Hasegawa
- Department of Neurosurgery, School of Medicine, Fujita Health University
| | - Yuichi Hirose
- Department of Neurosurgery, School of Medicine, Fujita Health University
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16
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Hirayama R, Kinoshita M, Arita H, Kagawa N, Kishima H, Hashimoto N, Fujimoto Y, Yoshimine T. Voxel-based lesion mapping of meningioma: a comprehensive lesion location mapping of 260 lesions. J Neurosurg 2017; 128:1707-1712. [PMID: 28862550 DOI: 10.3171/2017.3.jns17169] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE In the present study the authors aimed to determine preferred locations of meningiomas by avoiding descriptive analysis and instead using voxel-based lesion mapping and 3D image-rendering techniques. METHODS Magnetic resonance images obtained in 248 treatment-naïve meningioma patients with 260 lesions were retrospectively and consecutively collected. All images were registered to a 1-mm isotropic, high-resolution, T1-weighted brain atlas provided by the Montreal Neurological Institute (the MNI152), and a lesion frequency map was created, followed by 3D volume rendering to visualize the preferred locations of meningiomas in 3D. RESULTS The 3D lesion frequency map clearly showed that skull base structures such as parasellar, sphenoid wing, and petroclival regions were commonly affected by the tumor. The middle one-third of the superior sagittal sinus was most commonly affected in parasagittal tumors. Substantial lesion accumulation was observed around the leptomeninges covering the central sulcus and the sylvian fissure, with very few lesions observed at the frontal, parietal, and occipital convexities. CONCLUSIONS Using an objective visualization method, meningiomas were shown to be located around the middle third of the superior sagittal sinus, the perisylvian convexity, and the skull base. These observations, which are in line with previous descriptive analyses, justify further use of voxel-based lesion mapping techniques to help understand the biological nature of this disease.
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Affiliation(s)
- Ryuichi Hirayama
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
| | - Manabu Kinoshita
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and.,2Department of Neurosurgery, Osaka International Cancer Institute, Osaka, Japan
| | - Hideyuki Arita
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
| | - Naoki Kagawa
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
| | - Haruhiko Kishima
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
| | - Naoya Hashimoto
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
| | - Yasunori Fujimoto
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
| | - Toshiki Yoshimine
- 1Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka; and
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17
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Simple Tumor Localization Scale for Estimating Management Outcome of Intracranial Meningioma. World Neurosurg 2017; 104:876-882. [DOI: 10.1016/j.wneu.2017.05.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 05/06/2017] [Indexed: 11/16/2022]
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18
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Yamamoto J, Takahashi M, Idei M, Nakano Y, Soejima Y, Akiba D, Kitagawa T, Ueta K, Miyaoka R, Nishizawa S. Clinical features and surgical management of intracranial meningiomas in the elderly. Oncol Lett 2017; 14:909-917. [PMID: 28693251 DOI: 10.3892/ol.2017.6174] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 10/11/2016] [Indexed: 11/06/2022] Open
Abstract
Meningioma accounts for ~25% of all primary intracranial neoplasms and the incidence increases with age. Prvios population-based studies demonstrated that the annual incidence of intracranial meningiomas was 1.2-3.1/100,000 population. In particular, the incidence of this disease among the elderly is high. Recently, increased life expectancy and greater use of diagnostic radiological imaging led to an increased incidence in the diagnosis of intracranial meningiomas, both symptomatic and asymptomatic, in the elderly. Thus, neurosurgeons may be increasingly confronted with the management of intracranial meningiomas in the elderly. In practice, it is often difficult for physicians to determine whether traditional surgical resection is the optimal management strategy for intracranial meningiomas in the elderly. However, reported clinical studies about the outcome of surgical resection of intracranial meningiomas in the elderly are limited. Increased risk of mortality and morbidity associated with surgical treatment for intracranial meningiomas in the elderly compared with younger patients have been controversial. In the present study, the clinical features of intracranial meningiomas in 70 consecutive intracranial meningioma patients that underwent surgical treatment at the affiliated hospital of University of Occupational and Environmental Health between 2007 and 2013 were assessed. In addition, patient selection and surgical management of intracranial meningioma in elderly patients was discussed. Preoperative factors, including symptoms, tumor location, tumor size, Karnofsky Performance Scale (KPS) score and American Society of Anesthesiology (ASA) score, and postoperative factors, including pathological diagnosis, tumor proliferation index (Ki-67), resection rate (Simpson grade), length of hospital stay and discharge destination were retrospectively analyzed in patients aged ≥75 years (n=16; elderly group) and <75 years (n=54; younger group). Outcomes were assessed 6 months after surgery. Multivariate logistic regression revealed that tumor resection rate (Simpson grade III-V) was an important predictor of surgical complications (odds ratio, 5.662; 95% confidence interval, 1.323-24.236; P=0.0194). Perioperative morbidity was not correlated with age (>75 years), tumor location, tumor size, KPS score or ASA score. Thus, the present study indicated that age is not associated with surgical outcome in elderly meningioma patients. Regardless of patient age, the decision to perform surgical resection should be made on an individual basis wherein tumor characteristics and the general health of the patient are considered.
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Affiliation(s)
- Junkoh Yamamoto
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Mayu Takahashi
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Masaru Idei
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Yoshiteru Nakano
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Yoshiteru Soejima
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Daisuke Akiba
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Takehiro Kitagawa
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Kunihiro Ueta
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Ryo Miyaoka
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
| | - Shigeru Nishizawa
- Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan
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19
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Li Z, Li H, Jiao Y, Ma J, Wang S, Zhao J, Cao Y. A comparison of clinicopathological features and surgical outcomes between pediatric skull base and non-skull base meningiomas. Childs Nerv Syst 2017; 33:595-600. [PMID: 27796552 DOI: 10.1007/s00381-016-3278-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 10/12/2016] [Indexed: 11/25/2022]
Abstract
OBJECT The purpose of this study is to analyze and compare the clinicopathological characteristics and surgical outcomes between skull base and non-skull base meningiomas in pediatric population. METHODS We retrospectively analyzed a total of 140 cases of pediatric meningiomas surgically treated in our department from January 2005 to July 2015 and compared the clinicopathological characteristics and surgical outcomes between skull base and non-skull base meningiomas. RESULTS Of all the pediatric meningiomas, 50 (35.8 %) were located at the skull base and 90 (64.2 %) were located at the non-skull base. Skull base and non-skull base meningiomas had a similar sex distribution (male/female = 1:1 in skull base meningiomas and male/female = 1.5:1 in non-skull base meningiomas) (P = 0.288) and high-grade meningioma occurrence rate (P = 0.569). In addition, the mean age of non-skull base meningiomas was 12.5 years which was younger than that of skull base meningiomas (14.2 years) (P = 0.019), and the preoperative tumor size was smaller in skull base (mean size = 4.7 cm in skull base meningiomas and mean size = 5.7 cm in non-skull base meningiomas) (P = 0.020). Gross total resection was achieved in 64 non-skull base patients (73.9 %) and 26 skull base patients (52 %) (P = 0.046). Patients with gross total resection had better progression free survival (PFS) than those with subtotal resection. CONCLUSION Pediatric skull base and non-skull base meningiomas are similar in sex distribution and high-grade meningioma occurrence rate. In comparison with non-skull base ones, pediatric skull base meningiomas occur at elder age and are smaller in size and they are more likely to be incompletely resected. Gross total resection and early treatment are recommended to prolong PFS of pediatric patients.
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Affiliation(s)
- Zhicen Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China
| | - Hao Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China
| | - Yuming Jiao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China
| | - Ji Ma
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China
| | - Yong Cao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China. .,China National Clinical Research Center for Neurological Diseases, Beijing, 100050, China.
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Chung LK, Mathur I, Lagman C, Bui TT, Lee SJ, Voth BL, Chen CHJ, Barnette NE, Spasic M, Pouratian N, Lee P, Selch M, Chin R, Kaprealian T, Gopen Q, Yang I. Stereotactic radiosurgery versus fractionated stereotactic radiotherapy in benign meningioma. J Clin Neurosci 2017; 36:1-5. [DOI: 10.1016/j.jocn.2016.10.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 10/04/2016] [Indexed: 10/20/2022]
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21
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Li Z, Li H, Wang S, Zhao J, Cao Y. Pediatric Skull Base Meningiomas: Clinical Features and Surgical Outcomes. J Child Neurol 2016; 31:1523-1527. [PMID: 27543558 DOI: 10.1177/0883073816664669] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/26/2016] [Accepted: 07/04/2016] [Indexed: 11/16/2022]
Abstract
The purpose of this study is to investigate the clinical, pathological, and prognostic characteristics of pediatric skull base meningiomas. A retrospective analysis of 44 pediatric skull base patients younger than 18 years who underwent surgery at Beijing Tiantan Hospital was performed. The study group included 20 males and 24 females. Multiple lesions were seen in 8 patients. WHO grade I was found in 28 patients and higher grade was seen in 16 patients. Recurrence or progression occurred in 10 patients after the initial operation. The overall survival rate in the follow-up period for the entire cohort was 89.7%. The authors found no sex predominance in pediatric skull base meningiomas. In addition, this lesion was more often seen in their second decades. In contrast to skull base meningiomas in adult patients, pediatric skull base meningiomas had a higher incidence of nonbenign histopathological variants and a higher rate of recurrence.
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Affiliation(s)
- Zhicen Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Hao Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Shuo Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yong Cao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China .,China National Clinical Research Center for Neurological Diseases, Beijing, China
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Fogh SE, Johnson DR, Barker FG, Brastianos PK, Clarke JL, Kaufmann TJ, Oberndorfer S, Preusser M, Raghunathan A, Santagata S, Theodosopoulos PV. Case-Based Review: meningioma. Neurooncol Pract 2016; 3:120-134. [PMID: 31386096 DOI: 10.1093/nop/npv063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Indexed: 12/30/2022] Open
Abstract
Meningioma is by far the most common primary intracranial tumor in adults. Treatment of meningioma is complex due to a tremendous amount of variability in tumor behavior. Many patients are incidentally found to have tumors that will remain asymptomatic throughout their lives. It is important to identify these patients so that they can be spared from potentially morbid interventions. On the other end of the spectrum, high-grade meningiomas can behave very aggressively. When treatment is necessary, surgical resection is the cornerstone of meningioma therapy. Studies spanning decades have demonstrated that extent of resection correlates with prognosis. Radiation therapy, either in the form of external beam radiation therapy or stereotactic radiosurgery, represents another important therapeutic tool that can be used in place of or as a supplement to surgery. There are no chemotherapeutic agents of proven efficacy against meningioma, and chemotherapy treatment is generally reserved for patients who have exhausted surgical and radiotherapy options. Ongoing and future studies will help to answer unresolved questions such as the optimum use of radiation in resected WHO grade II meningiomas and the efficacy of additional chemotherapy agents.
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Affiliation(s)
- Shannon E Fogh
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Derek R Johnson
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Fred G Barker
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Priscilla K Brastianos
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Jennifer L Clarke
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Timothy J Kaufmann
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Stephan Oberndorfer
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Matthias Preusser
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Aditya Raghunathan
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Sandro Santagata
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
| | - Philip V Theodosopoulos
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA, USA (S.E.F.); Department of Radiology, Mayo Clinic, Rochester, MN, USA (D.R.J., T.J.K.); Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (F.G.B.); Division of Neuro-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (P.K.B.); Department of Neurology and Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (J.L.C.); Department of Neurology, Karl Landsteiner University Clinic, St Pölten, Austria (S.O.); Department of Internal Medicine, Medical University, Vienna, CCC, Austria (M.P.); Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA (A.R.); Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA (S.S.); Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA (P.V.T.)
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Hypofractionated stereotactic radiation therapy in skull base meningiomas. J Neurooncol 2015; 124:283-9. [PMID: 26040487 DOI: 10.1007/s11060-015-1838-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 05/30/2015] [Indexed: 12/12/2022]
Abstract
To investigate the role of hypo-fractionated stereotactic radiation treatment (HSRT) in the management of skull base meningioma. Twenty-six patients were included in the study and treated with a dose of 30 Gy in 5 fractions with volumetric modulated arc therapy (RapidArc). Eighteen patients were symptomatic before treatment. Endpoints were local toxicity and relief from symptoms. Tumors were located in anterior skull base in 4/27 cases, in middle skull base in 12/27 and in posterior skull base in 11/27. HSRT was performed as first treatment in 17 (65 %) patients, in 9 (35 %) patients it followed a previous partial resection. Median follow up was 24.5 months (range 5-57 months). clinical remission of symptoms, complete or partial, was obtained in the vast majority of patients after treatment. Out of the 18 symptomatic patients, partial remission occurred in 9 (50 %) patients and complete remission in 9 (50 %). All asymptomatic patients retained their status after treatment. No severe neurologic toxicity grade III-IV was recorded. No increase of meningioma in the same site of treatment occurred; 16 (62 %) patients had stable disease and 9 (38 %) patients had tumor reduction. The mean tumor volume after treatment was 10.8 ± 17.8 cm(3) compared with 13.0 ± 19.1 cm(3) before treatment (p = 0.02). The mean actuarial OS was 54.4 ± 2.8 months. The 1- and 2-years OS was 92.9 ± 0.7 %. HSRT proved to be feasible for these patients not eligible to full surgery or to ablative radiation therapy. Local control and durability of results suggest for a routine application of this approach in properly selected cases.
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Gao K, Ma H, Cui Y, Chen X, Ma J, Dai J. Meningiomas of the cerebellopontine angle: radiological differences in tumors with internal auditory canal involvement and their influence on surgical outcome. PLoS One 2015; 10:e0122949. [PMID: 25849220 PMCID: PMC4388680 DOI: 10.1371/journal.pone.0122949] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 02/16/2015] [Indexed: 11/18/2022] Open
Abstract
This study explored the clinical, radiological, and pathological characteristics of cerebellopontine angle (CPA) meningiomas with internal auditory canal (IAC) involvement. The pre- and postoperative MR images of 193 consecutive patients with pathologically diagnosed meningioma centered around the IAC were analyzed, focusing on changes in the IAC, maximal axial tumor volume, peritumoral brain edema, and postoperative residual tumor. Patient age, sex, tumor volume, postoperative residual tumor, and pathological subtype were compared in patients with and without IAC involvement by the tumor and among the different types of IAC involvement. The results showed that the 71 patients (36.8%) with IAC involvement had a higher ratio of peritumoral edema (χ2=5.922, P=0.015), postoperative residual tumor (χ2=22.183, P< 0.001), and a predominance of the meningothelial subtype (χ2=5.89, P=0 .015). Peritumoral edema was a risk factor for IAC involvement (P=0.016, OR=2.186). Radiologically, IAC involvement could be distinguished as intruding (31%, 22/71), filled (29.6%, 21/71), and dilated (39.4%, 28/71). Patients with intruding IAC were significantly older (54.5±9.54 years, P=0.021) and had the lowest postoperative residual tumor values (42%, χ2=7.865, P= 0.005), while those with filled IAC were more likely to be female (95%, χ2=9.404, P=0.009).Our observations provide the basis for a morphological classification of IAC involvement by CPA meningiomas and further insight into the clinical features of these tumors.
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Affiliation(s)
- Kun Gao
- Department of Interventional Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Housheng Ma
- Department of Radiology, Yantai Yuhuangding Hospital, Yantai, Shandong Province, People’s Republic of China
| | - Yong Cui
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Xuzhu Chen
- Department of Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
- * E-mail:
| | - Jun Ma
- Department of Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Jianping Dai
- Department of Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
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25
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Skull base atypical meningioma: Long term surgical outcome and prognostic factors. Clin Neurol Neurosurg 2015; 128:112-6. [DOI: 10.1016/j.clineuro.2014.11.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/02/2014] [Accepted: 11/10/2014] [Indexed: 11/20/2022]
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Skull base meningiomas: neurological outcome after microsurgical resection. J Neurooncol 2013; 116:381-6. [DOI: 10.1007/s11060-013-1309-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 11/10/2013] [Indexed: 10/26/2022]
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Abstract
Meningiomas represent the most common primary brain tumor and comprise 3 World Health Organization (WHO) grades, the most frequent being WHO grade I (90%). Surgery is mandatory to establish the diagnosis and to remove the tumor; however, complete resection can be achieved in only <50% of patients. Depending on the extent of resection, tumor location and the WHO grade radiation therapy can be applied. The issue of systemic treatment such as chemotherapy or targeted therapy (eg, somatostatin receptors, antiangiogenic agents) is yet not solved, particularly as current data are derived from small uncontrolled series in patients with long-standing disease and after several pretreatments. A more thorough understanding of molecular genetics, signaling pathways and prognostic factors in meningiomas should lead to the design of studies which stratify according to these factors. These studies have to be conducted in newly diagnosed patients after incomplete resection and in tumors of WHO grade II and III.
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Affiliation(s)
- Ali-Reza Fathi
- Department of Neurosurgery, Cantonal Hospital, 5001, Aarau, Switzerland.
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Li D, Hao SY, Wang L, Tang J, Xiao XR, Zhou H, Jia GJ, Wu Z, Zhang LW, Zhang JT. Surgical management and outcomes of petroclival meningiomas: a single-center case series of 259 patients. Acta Neurochir (Wien) 2013; 155:1367-83. [PMID: 23801089 DOI: 10.1007/s00701-013-1795-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/04/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND Surgical management of petroclival meningiomas is challenging. Various and inconsistent outcome and prognostic factors of the lesions have been evaluated previously. In the present study, the surgical outcome, philosophy, and experience of petroclival meningiomas are detailed based on a large patient series. METHODS A series of 259 patients with petroclival meningiomas (70 males and 189 females) were surgically treated. Clinical charts and radiographs were reviewed. Follow-up results were evaluated. RESULTS The preoperative Karnofsky Performance Scale (KPS) score was 74.2 ± 10.5. The mean tumor size was 4.3 ± 1.0 cm. The gross total resection (GTR) rate was 52.5%. During a mean follow-up period of 55.3 months, recurrence/progression (R/P) occurred in 11 patients. The recent KPS score was 78.4 ± 22.7, it improved in 139 (57.2%) patients and stabilized in 53 (21.8%) patients, and 201 (82.7%) patients lived independently. The risk factors affecting the KPS score included (but were not limited to) age ≥ 60, preoperative KPS ≤ 60, and brainstem edema. The adverse factors contributing to R/P-free survival included (but were not limited to) non-total resection and the absence of the subarachnoid space. The R/P-free survival rate was 94.5% at 5 years and 91.2% at 9 years. The overall survival rate was 94.7% at 5 years and 94.7% at 9 years. CONCLUSIONS Favorable outcomes from petroclival meningiomas could be achieved by microsurgery. Neurological function and quality of life were prioritized, and GTR was attempted. Risk factors should be considered in surgical schemes, and tumor recurrence should be aggressively monitored and treated.
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Affiliation(s)
- Da Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
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Presurgical planning of feeder resection with realistic three-dimensional virtual operation field in patient with cerebellopontine angle meningioma. Acta Neurochir (Wien) 2013; 155:1391-9. [PMID: 23722311 DOI: 10.1007/s00701-013-1761-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 05/07/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND To devascularize meningiomas, the precise location of tumor attachment must be known. However, when a cerebellopontine angle (CPA) meningioma is in contact with many surrounding structures, it can be difficult to distinguish the most vascularized attachment (MVA) from other contact surfaces. OBJECTIVE To validate the usefulness of a virtual operation field (VOF) of a CPA meningioma by high-spatial-resolution three-dimensional computer graphics (hs-3DCG). METHODS Presurgical simulation with VOF was performed for eight CPA meningiomas to assess the MVA and the appropriate route to the main feeder. For hs-3DCG, the necessary preoperative radiographic images were fused. A hybrid model of volume and surface rendering was created from the fused images. The simulation results were compared with the operative results, and the MVA estimation rate was compared between VOF and contrast-enhanced fast imaging employing steady-state acquisition. RESULTS By using VOF, the point at which the main feeder penetrated the tumor was estimated in all cases, and using this information, the MVA was detected. All patients underwent resection of the main feeder in the same way as simulated preoperatively. Estimation rates of MVA were 37.5% in CE-FIESTA and 100% in VOF (p = 0.02, Fisher's exact test). CONCLUSION The hs-3DCG method was of sufficiently high quality to enable VOF of CPA meningioma. This method may facilitate estimation of MVA and the main feeder penetration point, and may aid in the determination of the most appropriate approach to the main feeder.
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Javalkar V, Banerjee AD, Nanda A. Posterior cranial fossa meningiomas. J Neurol Surg B Skull Base 2013; 73:1-10. [PMID: 23372989 DOI: 10.1055/s-0032-1304835] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Accepted: 07/13/2011] [Indexed: 12/13/2022] Open
Abstract
This study evaluated the outcomes, complications, and recurrence rates of posterior cranial fossa meningiomas. We retrospectively reviewed our surgical experience with 64 posterior cranial fossa meningiomas. Mean age was 56 years with a female preponderance (67.2%). Headache was the most common symptom. Retrosigmoid approach was the commonest surgical procedure (23.4%). The incidence of cranial nerve related complications was 28%. Postoperatively facial nerve weakness was observed in 11%. The incidence of cerebrospinal fluid leak was 4.6%. Gross total resection was achieved in 37 patients (58%). Sixteen patients (25%) with residual tumors underwent Gamma knife radiosurgery. Recurrence or tumor progression was observed in 12 patients (18.7%). Operative mortality was 3.1%. At their last follow-up, 93% of the cases achieved Glasgow Outcome Scale scores 4 or 5. Total excision is the ideal goal which can be achieved with meningiomas located in certain location, such as lateral convexity, but for other posterior fossa meningiomas the close proximity of critical structures is a major obstacle in achieving this goal. In practicality, a balance between good functional outcome and extent of resection is important for posterior cranial fossa meningiomas in proximity to critical structures.
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Affiliation(s)
- Vijayakumar Javalkar
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana
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Uetani H, Akter M, Hirai T, Shigematsu Y, Kitajima M, Kai Y, Yano S, Nakamura H, Makino K, Azuma M, Murakami R, Yamashita Y. Can 3T MR angiography replace DSA for the identification of arteries feeding intracranial meningiomas? AJNR Am J Neuroradiol 2012; 34:765-72. [PMID: 23079409 DOI: 10.3174/ajnr.a3284] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE For identifying the arterial feeders of meningiomas, the usefulness of 3D TOF MRA at 3T has not been systematically investigated. This study was intended to assess whether unenhanced 3D TOF MRA at 3T can replace DSA for the identification of arteries feeding intracranial meningiomas and whether it is useful for assessing their dural attachment. MATERIALS AND METHODS Twenty-one consecutive patients with intracranial meningiomas (18 women, 3 men; aged 42-77 years, mean 57 years) underwent DSA, conventional MR imaging, and 3D TOF MRA. Two neuroradiologists independently evaluated the primary and secondary feeders of each tumor on maximum-intensity-projection and source MRA images. They also identified the location of dural attachments based on information from MR imaging/MRA images. Interobserver and intermodality agreement was determined by calculating the κ coefficient. RESULTS For the identification of primary and secondary feeders on MRA images, interobserver agreement was very good (κ=0.83; 95% CI, 0.66-1.00) and moderate (κ=0.58; 95% CI, 0.34-0.82) and intermodality agreement (consensus reading of MRA versus DSA findings) was excellent (κ=0.94; 95% CI, 0.84-1.00) and good (κ=0.72; 95% CI, 0.51-0.93), respectively. With respect to the dural attachment of meningiomas, interobserver agreement was very good (κ=0.95; 95% CI, 0.84-1.00). The agreement in the diagnosis between MR imaging/MRA and surgery was excellent (κ=1.00). CONCLUSIONS Unenhanced 3D TOF MRA at 3T cannot at present supplant DSA for the identification of the feeding arteries of intracranial meningiomas. This information may be useful for evaluating their dural attachment.
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Affiliation(s)
- H Uetani
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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Roche PH, Lubrano V, Noudel R, Melot A, Régis J. Decision making for the surgical approach of posterior petrous bone meningiomas. Neurosurg Focus 2011; 30:E14. [PMID: 21529170 DOI: 10.3171/2011.2.focus1119] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT The authors undertook this study to examine the surgical approaches used to treat posterior petrous bone meningiomas at a single institution and retrospectively evaluate their surgical strategy based on a previously published classification. METHODS Cases in which craniotomies were performed to treat posterior petrous bone meningiomas between 2002 and 2010 were retrospectively reviewed. Data were examined from 57 patients who were treated for 59 tumors. The tumors were classified into 3 types according to the location of their primary dural attachment: Type A, located around the porus trigeminus (33 tumors); Type M, located at the level of the porus of the internal auditory canal (IAC) (12 tumors); and Type P, located laterally to the IAC (14 tumors). The median tumor diameter was 34 mm (range 20-67 mm). RESULTS The choice of the approach was based on tumor location, as the displacement of vascular structures and cranial nerves was primarily determined by the site of dural attachment on the posterior petrous bone. An anterior petrosectomy was performed in 82% of Type A meningiomas, and a retrosigmoid approach was used in 86% of Type P meningiomas. The spectrum of approaches was less uniform for Type M meningiomas. Overall, total resection was obtained in 39% of all cases, and in 18%, 50%, and 86% of Type A, Type M, and Type P tumors, respectively. The postoperative mortality rate was 8.8% (5 deaths among 57 patients), and all 5 patients who died during the early postoperative period had large Type A tumors. At last follow-up, the functional preservation of the facial nerve was excellent in 49 (94%) of the 52 surviving patients. CONCLUSIONS The authors believe that proper selection of the approach favorably impacts functional outcome in patients undergoing surgery for the treatment of skull base tumors. In the authors' case series of posterior petrous bone meningiomas, Type P and most Type M tumors were safely managed through a regular retrosigmoid approach, whereas Type A tumors were optimally treated via an epidural anterior petrosectomy.
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Affiliation(s)
- Pierre-Hugues Roche
- CHU Marseille Nord APHM, Université de la Méditerrannée, Chemin des Bourelly, Marseille Cedex 20, France.
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Nakao N, Ohkawa T, Miki J, Nishibayahsi H, Ogura M, Uematsu Y, Itakura T. Analysis of factors affecting the long-term functional outcome of patients with skull base meningioma. J Clin Neurosci 2011; 18:895-8. [DOI: 10.1016/j.jocn.2010.10.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 10/20/2010] [Indexed: 11/25/2022]
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Chen CM, Huang APH, Kuo LT, Tu YK. Contemporary surgical outcome for skull base meningiomas. Neurosurg Rev 2011; 34:281-96; discussion 296. [PMID: 21614426 DOI: 10.1007/s10143-011-0321-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 02/03/2011] [Accepted: 03/06/2011] [Indexed: 11/25/2022]
Abstract
Although surgical excision of meningioma and its dural base is the most common primary management, skull base meningiomas are quite different, and contemporary management usually consists of multimodal treatment with the aim of achieving the best possible functional outcome and quality of life (QOL) for these patients. As surgery plays an important role in the treatment of skull base meningiomas, it is crucial for neurosurgeons to appreciate the surgical outcome and QOL after meningioma surgery. Outcome is usually measured for meningiomas in terms of morbidity, mortality, time to recurrence, and QOL. The extent of resection, tumor grade, proliferative markers, and tumor location are significant factors in predicting the surgical outcome. Therefore, we address each of these factors in detail in this review. Advances in recent decades in microsurgical techniques, neuroimaging modalities, neuroanesthesia, and perioperative intensive care have substantially improved the surgical outcome; therefore, most surgical outcomes discussed in this review are cited from contemporary literature (2000 to the present) in order to depict the surgical outcome of contemporary microsurgery.
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Affiliation(s)
- Chien-Min Chen
- Division of Neurosurgery, Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan.
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Ohba S, Kobayashi M, Horiguchi T, Onozuka S, Yoshida K, Ohira T, Kawase T. Long-term surgical outcome and biological prognostic factors in patients with skull base meningiomas. J Neurosurg 2010; 114:1278-87. [PMID: 21166572 DOI: 10.3171/2010.11.jns10701] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Although gross-total resection (GTR) is a preferable treatment for skull base meningiomas, subtotal resection (STR) with or without radiation therapy can be considered as an alternative treatment for patients at considerable surgical risk. The long-term prognosis of such patients might be related to the biological activity of the tumor. This study examined predictors of progression-free survival (PFS) and sought to determine the optimal treatment strategies, focusing on the pathobiological findings of skull base meningiomas. METHODS This study included 281 patients with skull base meningiomas (mean follow-up period 88.4 months). Risk factors for tumor progression were examined using a multivariate analysis. The PFS and overall survival (OS) rates were evaluated using the Kaplan-Meier method. The functional outcomes of the patients were measured using the Karnofsky Performance Scale (KPS). RESULTS The 10-year PFS and OS rates were 66.4% and 97.4%, respectively. Overall, 83.3% of patients achieved a favorable outcome, that is, an improved or unchanged KPS score. The extent of resection, additional radiotherapy, histological grade, MIB-1 index, and p53-positive rate were significantly associated with PFS. The PFS of patients undergoing STR without radiation therapy was significantly shorter than that of either those undergoing STR with radiation therapy or GTR, while no statistical difference was observed between the latter 2 groups. Among the patients undergoing STR with pathobiological risk factors (histological grade, MIB-1 index, and p53-positive rate), the PFS of the patients who received radiation therapy was better than that of those who did not receive radiation therapy. Among the patients undergoing STR without such risk factors, the PFS was not significantly different between patients who received radiation therapy and those who did not. CONCLUSIONS For patients with skull base meningiomas, a GTR is desirable and additional radiation therapy after STR may contribute to a longer PFS. Additional radiation therapy should be recommended, especially for patients with pathobiological risk factors, but not necessarily for those without such risks.
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Affiliation(s)
- Shigeo Ohba
- Department of Neurosurgery, Keio University School of Medicine, Tokyo, Japan.
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Dural attachment of intracranial meningiomas: evaluation with contrast-enhanced three-dimensional fast imaging with steady-state acquisition (FIESTA) at 3 T. Neuroradiology 2010; 53:413-23. [DOI: 10.1007/s00234-010-0751-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 07/15/2010] [Indexed: 10/19/2022]
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Sughrue ME, Rutkowski MJ, Shangari G, Chang HQ, Parsa AT, Berger MS, McDermott MW. Risk factors for the development of serious medical complications after resection of meningiomas. Clinical article. J Neurosurg 2010; 114:697-704. [PMID: 20653395 DOI: 10.3171/2010.6.jns091974] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT While the surgical and neurological risks of meningioma surgery have been reported, much less effort has been devoted to studying the rates of serious medical complications following such a procedure. The authors performed a review of 834 patients who underwent craniotomy for meningioma at their institution and analyzed the rate of major cardiac, pulmonary, renal, and hepatic complications. METHODS The authors identified all patients between 1993 and 2007 who underwent craniotomy for meningioma. Clinical information was reconstructed using patient medical records, medication records, radiological data, and pathological specimens from both the author institution and outside medical facilities. Stepwise multivariate logistic regression analysis was performed to test the association between the dependent variable (rate of medical complications) and all covariates with a p < 0.2 on univariate testing. RESULTS Fifty-seven patients (6.8%) experienced 61 serious medical complications following surgery for meningioma. Four patients died of medical complications. The most common complication was pneumonia, followed by renal dysfunction, arrhythmia, and deep venous thrombosis and/or pulmonary embolus. The development of a new or worsened neurological deficit (p < 0.00001), an age > 65 years (p < 0.03), hypertension (p < 0.02), and being on > 2 cardiac medications prior to surgery (p < 0.004) all demonstrated significantly increased rates of medical complications on univariate analysis. On multivariate analysis, only a new or worsened neurological deficit remained a significant risk factor for the occurrence of serious medical complications (p < 0.00001). CONCLUSIONS Overall, the authors found that the rate of clinically detected serious medical complications is relatively low in this population (6.8%), given the duration and complexity of the meningioma operations, and is strongly linked to the subsequent development of significant medical complications. This information may be useful to surgeons in discussing the morbidity of surgery during the informed consent process.
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Affiliation(s)
- Michael E Sughrue
- Brain Tumor Research Center, Department of Neurological Surgery, University of California, San Francisco, California, USA
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Sughrue ME, Kane AJ, Shangari G, Rutkowski MJ, McDermott MW, Berger MS, Parsa AT. The relevance of Simpson Grade I and II resection in modern neurosurgical treatment of World Health Organization Grade I meningiomas. J Neurosurg 2010; 113:1029-35. [PMID: 20380529 DOI: 10.3171/2010.3.jns091971] [Citation(s) in RCA: 185] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT In 1957, Simpson published a seminal paper defining the risk factors for recurrence following surgical treatment of intracranial meningiomas. Given that Simpson's study was published more than 50 years ago, preceding image guidance technology and MR imaging, the authors reviewed their own experience with surgical treatment of Grade I meningiomas to determine if Simpson's grading scale is still relevant to modern neurosurgical practice. METHODS From this cohort, the authors evaluated all patients undergoing craniotomy for resection of a histologically proven WHO Grade I meningioma as their initial therapy. Clinical information was retrospectively reconstructed using patient medical records and radiological data. Recurrence analysis was performed using the Kaplan-Meier method. RESULTS The 5-year recurrence/progression-free survival for all patients receiving a Simpson Grade I, II, III, or IV resection was 95, 85, 88, and 81%, respectively (p = not significant, log-rank test). Kaplan-Meier analysis revealed no significant difference in recurrence-free survival between patients receiving a Simpson Grade I, II, III, or IV resection. Analysis limited to meningiomas arising from the skull base (excluding the cavernous sinus) similarly found no significant benefit to Simpson Grade I or II resection, and the survival curves were nearly superimposed. CONCLUSIONS In this study of a cohort of patients undergoing surgery for WHO Grade I meningiomas, the authors demonstrate that the benefit of more aggressive attempts to resect the tumor with dura and underlying bone was negligible compared with simply removing the entire tumor, or even leaving small amounts of tumor attached to critical structures. The authors believe that these data reflect an evolution in the nature of meningioma surgery over the past 2 decades, and bring into question the relevance of using Simpson's grading system as the sole predictor of recurrence.
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Affiliation(s)
- Michael E Sughrue
- Brain Tumor Research Center, Department of Neurological Surgery, University of California, San Francisco, California 94143, USA
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