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Battistelli M, Grilli F, Rapisarda A, Di Domenico M, Montano N, Gessi M, Olivi A, Albanese A, Polli FM. Unsatisfactory Neurological Outcome in an Intramedullary Thoracic Intermediate-Grade Melanocytoma-Systematic Review and Illustrative Case. Cancers (Basel) 2024; 16:1867. [PMID: 38791946 PMCID: PMC11119811 DOI: 10.3390/cancers16101867] [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: 04/12/2024] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Intramedullary melanocytomas are exceedingly rare, with only twenty-four cases reported up to now. They present as local invasive tumors despite their benign biological behavior. Attempting a complete safe resection often results in severe post-operative neurological deficits, as in our case presented here. METHODS A systematic review was conducted across the PubMed and Scopus databases including studies published till February 2024. RESULTS A total of 19 studies were included, encompassing 24 cases. A similar distribution between sexes was noted (M:F 13:11), with ages ranging from 19 to 79 years. The thoracic segment was most affected, and intermediate-grade melanocytoma (19 cases) was the most common histotype. Radiographically, intramedullary melanocytomas usually appear as hyperintense hemorrhagic lesions peripheral to the central canal with focal nodular enhancement. Intraoperatively, they are black-reddish to tan and are tenaciously adherent lesions. In the sampled studies, IONM employment was uncommon, and post-operative new-onset neurological deficits were described in 16 cases. Adjuvant RT was used in four cases and its value is debatable. Recurrence is common (10 cases), and adjuvant therapies (RT or repeated surgery) seem to play a palliative role. CASE PRESENTATION A 68-year-old woman presented with a three-year history of worsening spastic paraparesis and loss of independence in daily activities (McCormick grade 4). An MRI revealed an intramedullary tumor from Th5 to Th7, characterized by T1-weighted hyperintensity and signs of recent intralesional hemorrhage. Multimodal neuromonitoring, comprising the D-Wave, guided the resection of a black-tan-colored tumor with hyper-vascularization and strong adherence to the white matter. During final dissection of the lesion to obtain gross total resection (GTR), a steep decline in MEPs and D-Wave signals was recorded. Post-operatively, the patient had severe hypoesthesia with Th9 level and segmental motor deficits, with some improvement during neurorehabilitation. Histopathology revealed an intermediate-grade melanocytoma (CNS WHO 2021 classification). A four-month follow-up documented the absence of relapse. CONCLUSIONS This literature review highlights that intramedullary T1 hyperintense hemorrhagic thoracic lesions in an adult patient should raise the suspicion of intramedullary melanocytoma. They present as locally aggressive tumors, due to local invasiveness, which often lead to post-operative neurological deficits, and frequent relapses, which overwhelm therapeutic strategies leading to palliative care after several years.
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Affiliation(s)
- Marco Battistelli
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Fulvio Grilli
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Alessandro Rapisarda
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Michele Di Domenico
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Nicola Montano
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Marco Gessi
- Neuropathology Unit, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica S. Cuore, 00168 Rome, Italy;
| | - Alessandro Olivi
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Alessio Albanese
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
| | - Filippo Maria Polli
- Department of Neurosurgery, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, 00168 Rome, Italy; (M.B.); (F.G.); (M.D.D.); (N.M.); (A.O.); (A.A.); (F.M.P.)
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Shrestha P, Eineichner T, Wilson B, Lam NS. Intradural Intramedullary Spinal Cord Glioblastoma: A Case Report. Cureus 2023; 15:e43580. [PMID: 37593069 PMCID: PMC10430890 DOI: 10.7759/cureus.43580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 08/19/2023] Open
Abstract
Primary spinal cord glioblastoma multiforme (GBM) remains uncommon and typically affects males and patients during their fifth decade of life. Our case demonstrates a 77-year-old woman who initially presented with right arm paresthesia and limited range of motion and was subsequently diagnosed with primary spinal cord GBM. Our case illustrates an atypical and nonspecific neurological presentation highlighting that spinal cord GBM can have a more indolent course, unlike what current literature suggests. It also emphasizes the importance of considering a multimodal approach when managing atypical neurological symptoms and considering an early intervention, including magnetic resonance imaging, to rule out occult neoplasm in an appropriate clinical setting, thus preventing delay in the diagnosis. This case further emphasizes the role of molecular biomarkers of tumors, including isocitrate dehydrogenase mutation as well as methylguanine-DNA methyltransferase promoter methylation status, that can independently guide and affect the treatment outcomes in this patient population.
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Affiliation(s)
| | | | | | - Naomi S Lam
- Internal Medicine, Des Moines University, Des Moines, USA
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Liang XY, Chen YP, Li Q, Zhou ZW. Atypical imaging features of the primary spinal cord glioblastoma: A case report. World J Clin Cases 2022; 10:7950-7959. [PMID: 36158493 PMCID: PMC9372862 DOI: 10.12998/wjcc.v10.i22.7950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/29/2022] [Accepted: 06/26/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Primary spinal cord (PSC) glioblastoma (GB) is an extremely rare but fatal primary tumor of the central nervous system and associated with a poor prognosis. While typical tumor imaging features are generally easy to recognize, glioblastoma multiforme can have a wide range of imaging findings. Atypical GB is often misdiagnosed, which usually delays the optimal time for treatment. In this article, we discuss a clinical case of pathologically confirmed PSC GB under the guise of benign tumor imaging findings, as well as the most recent literature pertaining to PSC GB.
CASE SUMMARY A 70-year-old female complained of limb weakness lasting more than 20 d. Irregular masses were observed inside and outside the left foramina of the spinal canal at C7-T1 on medical imaging. Based on the imaging features, radiologists diagnosed the patient with schwannoma. Tumor resection was performed under general anesthesia. The final histopathological findings revealed a final diagnosis of PSC GB, world health organization Grade IV. The patient subsequently underwent a 4-wk course of radiotherapy (60 Gy in 20 fractions) combined with temozolomide chemotherapy. The patient was alive at the time of submission of this manuscript.
CONCLUSION Atypical GB presented unusual imaging findings, which led to misdiagnosis. Therefore, a complete recognition of imaging signs may facilitate early accurate diagnosis.
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Affiliation(s)
- Xin-Yu Liang
- Department of Radiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
| | - Yao-Ping Chen
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, Guangdong Province, China
| | - Qiao Li
- Department of Endocrinology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
| | - Ze-Wang Zhou
- Department of Radiology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
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Yang S, Yang X, Wang H, Gu Y, Feng J, Qin X, Feng C, Li Y, Liu L, Fan G, Liao X, He S. Development and Validation of a Personalized Prognostic Prediction Model for Patients With Spinal Cord Astrocytoma. Front Med (Lausanne) 2022; 8:802471. [PMID: 35118095 PMCID: PMC8804494 DOI: 10.3389/fmed.2021.802471] [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: 10/26/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe study aimed to investigate the prognostic factors of spinal cord astrocytoma (SCA) and establish a nomogram prognostic model for the management of patients with SCA.MethodsPatients diagnosed with SCA between 1975 and 2016 were extracted from the Surveillance, Epidemiology, and End Results (SEER) database and randomly divided into training and testing datasets (7:3). The primary outcomes of this study were overall survival (OS) and cancer-specific survival (CSS). Cox hazard proportional regression model was used to identify the prognostic factors of patients with SCA in the training dataset and feature importance was obtained. Based on the independent prognostic factors, nomograms were established for prognostic prediction. Calibration curves, concordance index (C-index), and time-dependent receiver operating characteristic (ROC) curves were used to evaluate the calibration and discrimination of the nomogram model, while Kaplan-Meier (KM) survival curves and decision curve analyses (DCA) were used to evaluate the clinical utility. Web-based online calculators were further developed to achieve clinical practicability.ResultsA total of 818 patients with SCA were included in this study, with an average age of 30.84 ± 21.97 years and an average follow-up time of 117.57 ± 113.51 months. Cox regression indicated that primary site surgery, age, insurance, histologic type, tumor extension, WHO grade, chemotherapy, and post-operation radiotherapy (PRT) were independent prognostic factors for OS. While primary site surgery, insurance, tumor extension, PRT, histologic type, WHO grade, and chemotherapy were independent prognostic factors for CSS. For OS prediction, the calibration curves in the training and testing dataset illustrated good calibration, with C-indexes of 0.783 and 0.769. The area under the curves (AUCs) of 5-year survival prediction were 0.82 and 0.843, while 10-year survival predictions were 0.849 and 0.881, for training and testing datasets, respectively. Moreover, the DCA demonstrated good clinical net benefit. The prediction performances of nomograms were verified to be superior to that of single indicators, and the prediction performance of nomograms for CSS is also excellent.ConclusionsNomograms for patients with SCA prognosis prediction demonstrated good calibration, discrimination, and clinical utility. This result might benefit clinical decision-making and patient management for SCA. Before further use, more extensive external validation is required for the established web-based online calculators.
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Affiliation(s)
- Sheng Yang
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Spinal Pain Research Institute, Tongji University School of Medicine, Shanghai, China
| | - Xun Yang
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Orthopedics, The First Affiliated Hospital, Shenzhen University, Shenzhen, China
- Shenzhen Second People's Hospital, Shenzhen, China
| | - Huiwen Wang
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuelin Gu
- Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence, Ministry of Education, Shanghai, China
- Institute of Science and Technology for Brain-Inspired Intelligence, Behavioral and Cognitive Neuroscience Center, Fudan University, Shanghai, China
| | - Jingjing Feng
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xianfeng Qin
- College of Artificial Intelligence, Guangxi University for Nationalities, Nanning, China
| | - Chaobo Feng
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Spinal Pain Research Institute, Tongji University School of Medicine, Shanghai, China
| | - Yufeng Li
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Lijun Liu
- Department of Orthopedics, The First Affiliated Hospital, Shenzhen University, Shenzhen, China
- Shenzhen Second People's Hospital, Shenzhen, China
| | - Guoxin Fan
- National Key Clinical Pain Medicine of China, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, China
- Department of Pain Medicine, Shenzhen Municipal Key Laboratory for Pain Medicine, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- *Correspondence: Guoxin Fan
| | - Xiang Liao
- National Key Clinical Pain Medicine of China, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
- Department of Pain Medicine, Shenzhen Municipal Key Laboratory for Pain Medicine, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
- Xiang Liao
| | - Shisheng He
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
- Spinal Pain Research Institute, Tongji University School of Medicine, Shanghai, China
- Shisheng He
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Koutsouras GW, Amsellem A, Richardson T, Babu H. Multifocal spinal glioblastoma and leptomeningeal carcinomatosis in an elderly male with hydrocephalus and myelopathy. Surg Neurol Int 2021; 12:595. [PMID: 34992912 PMCID: PMC8720450 DOI: 10.25259/sni_985_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/16/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Primary spinal glioblastoma multiforme with multifocal leptomeningeal enhancement is rarely diagnosed or documented. We describe a rare case of multifocal spinal isocitrate dehydrogenase (IDH) wild type glioblastoma with leptomeningeal carcinomatosis in an elderly male presenting with a chronic subdural hematoma, progressive myelopathy, and communicating hydrocephalus. CASE DESCRIPTION A 77-year-old male with a medical history of an acoustic schwannoma, anterior cranial fossa meningioma, and immune thrombocytopenic purpura presented with right-sided weakness after repeated falls. Magnetic resonance imaging of the brain and spine demonstrated a left-sided subdural hematoma, leptomeningeal enhancement of the brain and skull base, ventricles, and the cranial nerves, and along with florid enhancement of the leptomeninges from the cervicomedullary junction to the cauda equina. Most pertinent was focal thickening of the leptomeninges at T1 and T6 with mass effect on the spinal cord. A T6 laminectomy with excisional biopsy of the lesion was planned and completed. Findings were significant for glioblastoma the World Health Organization Grade IV IDH 1 wild type of the thoracic spinal cord. Subsequently, his mental status declined, and he developed progressive hydrocephalus which required cerebrospinal fluid diversion. Unfortunately, the patient had minimal improvement in his neurological exam and unfortunately died 2 months later. CONCLUSION In a review of the limited literature describing similar cases of primary spinal glioblastoma, the prognosis of this aggressive tumor remains unfavorable, despite aggressive treatment options. The purpose of this report is to increase awareness of this rare condition as a potential differential diagnosis in patients presenting with multifocal invasive spinal lesions.
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Affiliation(s)
- George W. Koutsouras
- Department of Neurosurgery, Upstate University Hospital, Syracuse, New York, United States
| | - Annelle Amsellem
- Department of Internal Medicine, New York Institute of Technology College of Osteopathic Medicine, Glen Head, New York, United States
| | - Timothy Richardson
- Department of Pathology, Upstate University Hospital, Syracuse, New York, United States
| | - Harish Babu
- Department of Neurosurgery, Upstate University Hospital, Syracuse, New York, United States
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Jokovic M, Somma T, Ilic R, Guizzardi G, Stanimirovic A, Raicevic S, Milicevic M, Grujicic D, Solari D. Primary spinal glioblastoma multiforme. Single center experience and literature review. INTERDISCIPLINARY NEUROSURGERY 2021. [DOI: 10.1016/j.inat.2021.101109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Singh R, Kalani M. Cervical intradural intramedullary collision tumor of schwannoma and hemangioblastoma origin. Surg Neurol Int 2021; 12:155. [PMID: 33948325 PMCID: PMC8088498 DOI: 10.25259/sni_92_2021] [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: 01/31/2021] [Accepted: 03/18/2021] [Indexed: 11/20/2022] Open
Abstract
Background: Primary spinal tumors are rare benign lesions that represent around 2–4% of all central nervous system neoplasms.[1,2] Intradural intramedullary tumors are predominately glial in origin and are most commonly astrocytomas or ependymomas. Intradural extramedullary tumors, on the other hand, are usually neurofibromas, schwannomas, or meningiomas.[2] Here, we report the case of an intradural intramedullary collision tumor of schwannoma-hemangioblastoma origin. Case Description: A 61-year-old female presented with a 2-year history of the right arm numbness, weakness, and tingling. She reported some lower extremity numbness but an otherwise normal neurological examination. She had a prior carpal tunnel release that did not alleviate her symptoms. Noncontrast MRI of the cervical spine demonstrated a holocord syrinx from C2 to C7 and spondylolisthesis from C4 to C5. MRI with contrast then displayed an enhancing nodule behind the vertebral body of C4. A standard posterior approach and subperiosteal dissection were performed. Lateral mass screws were placed at C3-C5, and the laminectomy was performed en bloc. Intraoperative ultrasound was used to locate the lesion, and intraoperative dorsal column mapping was used to identify the midline before performing a midline myelotomy. The arachnoid over the lesion was opened and an extracapsular dissection was performed. Hemostasis was obtained, and a watertight dural closure was performed. Conclusion: The patient tolerated the procedure well and achieved relief from cervical myelopathy symptoms. Pathology indicated positive biomarkers for S-100, SOX10, and NSE indicating a schwannoma hemangioblastoma collision tumor. This is unusual in its nature given two benign lesions with differing underlying cell types of origin.
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Affiliation(s)
- Rohin Singh
- Department of Neurosurgery, Mayo Clinic, Scottsdale, Arizona, United States
| | - Maziyar Kalani
- Department of Neurosurgery, Mayo Clinic, Scottsdale, Arizona, United States
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Yang K, Man W, Jing L, Yu B, Wang J, Wang G. Letter to the Editor Regarding "Primary Spinal Cord Small-Cell Glioblastoma: Case Report and Literature Review". World Neurosurg 2020; 141:539-540. [PMID: 32871719 DOI: 10.1016/j.wneu.2020.05.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 05/17/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Kaiyuan Yang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Weitao Man
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Linkai Jing
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Beibei Yu
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - James Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Guihuai Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China.
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Yang K, Man W, Jing L, Sun Z, Liang P, Wang J, Wang G. Clinical Features and Outcomes of Primary Spinal Cord Glioblastoma: A Single-Center Experience and Literature Review. World Neurosurg 2020; 143:e157-e165. [PMID: 32688042 DOI: 10.1016/j.wneu.2020.07.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVE We aim to elucidate the clinical characteristics of patients with primary spinal cord glioblastoma (PSC GBM) and prognostic factors for their outcomes. METHODS A cohort of 11 patients with pathologically diagnosed PSC GBM from our center were retrospectively reviewed. The clinical, radiologic, operative, and molecular information were recorded, and univariate analysis was performed to identify prognostic factors. RESULTS The patient cohort included 5 males (45.5%) and 6 females (54.5%) with a median age of 26 years (range, 9-69 years). The median duration of the preoperative symptoms was 4.0 months (range, 0.5-120 months). Subtotal resection was achieved in 8 patients (72.7%) and partial resection in 3 (27.3%). Two patients (18.2%) underwent postoperative adjuvant chemoradiotherapy, 2 patients underwent (27.3%) chemotherapy only, and 6 patients (54.5%) neither. Two patients underwent additional therapy with bevacizumab. After a mean follow-up of 12.4 months (range, 1-33 months), Kaplan-Meier plot showed that the median progression-free survival and overall survival were 6.0 (range, 0.5-12.0) months and 12.0 (range, 1.0-33.0) months, respectively, and 1-year survival was 31.8%. Age at diagnosis and duration of the preoperative symptoms were confirmed as prognostic factors of progression-free survival and overall survival in univariate analysis (P < 0.05). CONCLUSIONS Despite aggressive treatment, PSC GBM still has a dismal prognosis and leads to severe neurologic deficit. Age at diagnosis and duration of the preoperative symptoms were confirmed as prognostic factors, yet the role of adjuvant radiochemotherapy and extent of resection are still unclear, necessitating further research.
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Affiliation(s)
- Kaiyuan Yang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Weitao Man
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Linkai Jing
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Zhenxing Sun
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Ping Liang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - James Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Guihuai Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China; Department of Neurosurgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China.
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Soriano Sánchez JA, Soriano Solis S, Soto Garcia ME, Romero Rangel JAI. Scientific Contributions of the Mexican Association of Spine Surgeons (Asociación Mexicana de Cirujanos de Columna-AMCICO) to the Global Medical Literature: A 21-Year Systematic Review. World Neurosurg 2020; 138:e223-e240. [PMID: 32112941 DOI: 10.1016/j.wneu.2020.02.090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND Contributions from Latin America to the global literature are scarce; until 2011, spine surgeons had published 320 articles in indexed journals. METHODS This systematic review evaluates the scientific production of the Mexican Association of Spine Surgeons (Asociación Mexicana de Cirujanos de Columna-AMCICO) from its inception in 1998 to 2018 with the PRISMA statement using PubMed and Google Scholar search engines. The inclusion criteria were spine-related articles in indexed journals providing any (or no) level of evidence with ≥1 AMCICO member as an author. Journal metrics, article metrics, and author variables were analyzed using SPSS version 25. RESULTS Of the 444 surgeons historically belonging to AMCICO, only 126 members contributed a total of 441 articles between 1998 and 2018. An average of 21.00 annual publications with an annual scientific output per capita of 0.05 was found. The most frequent evidence level was III (211 articles, 48%), the highest level was I (12 articles, 3%). The main study objective was clinical research, with 308 articles (70%), and the main study foci was trauma, with 103 articles (23%). An average impact factor of 0.16 and 0.92 was obtained for publications in Spanish and English, respectively. CONCLUSIONS Scientific publications by AMCICO members are scarce, with a per capita annual index of 0.05 from a total of 441 articles in indexed journals. Second, the impact factor of these journals is low, with a mean value of 0.53. Further strategies should be implemented to increase the number and track the record of Mexican contributions to the scientific literature.
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Affiliation(s)
- José Antonio Soriano Sánchez
- Mexican Association of Spine Surgeons (AMCICO), CDMX, Mexico; Mexican Society of Neurological Surgery (SMCN), CDMX, Mexico; American British Cowdray Medical Center I.A.P. Campus Santa Fe, CDMX, Mexico; Minimally Invasive Spine Surgery, National Autonomous University of Mexico (UNAM), CDMX, Mexico
| | - Sergio Soriano Solis
- Mexican Association of Spine Surgeons (AMCICO), CDMX, Mexico; American British Cowdray Medical Center I.A.P. Campus Santa Fe, CDMX, Mexico; Minimally Invasive Spine Surgery, National Autonomous University of Mexico (UNAM), CDMX, Mexico
| | - Manuel Eduardo Soto Garcia
- Mexican Association of Spine Surgeons (AMCICO), CDMX, Mexico; Mexican Society of Neurological Surgery (SMCN), CDMX, Mexico; American British Cowdray Medical Center I.A.P. Campus Santa Fe, CDMX, Mexico; Minimally Invasive Spine Surgery, National Autonomous University of Mexico (UNAM), CDMX, Mexico
| | - José Alberto Israel Romero Rangel
- Mexican Association of Spine Surgeons (AMCICO), CDMX, Mexico; Mexican Society of Neurological Surgery (SMCN), CDMX, Mexico; American British Cowdray Medical Center I.A.P. Campus Santa Fe, CDMX, Mexico; Minimally Invasive Spine Surgery, National Autonomous University of Mexico (UNAM), CDMX, Mexico; Regional General Hospital #25 of the National Institute of Social Security (IMSS), CDMX, Mexico.
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