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Gecici NN, Gurses ME, Kaye B, Jimenez NLF, Berke C, Gökalp E, Lu VM, Ivan ME, Komotar RJ, Shah AH. Comparative analysis of bevacizumab and LITT for treating radiation necrosis in previously radiated CNS neoplasms: a systematic review and meta-analysis. J Neurooncol 2024; 168:1-11. [PMID: 38619777 DOI: 10.1007/s11060-024-04650-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 03/15/2024] [Indexed: 04/16/2024]
Abstract
PURPOSE Radiation necrosis (RN) is a local inflammatory reaction that arises in response to radiation injury and may cause significant morbidity. This study aims to evaluate and compare the efficacy of bevacizumab and laser interstitial thermal therapy (LITT) in treating RN in patients with previously radiated central nervous system (CNS) neoplasms. METHODS PubMed, Cochrane, Scopus, and EMBASE databases were screened. Studies of patients with radiation necrosis from primary or secondary brain tumors were included. Indirect meta-analysis with random-effect modeling was performed to compare clinical and radiological outcomes. RESULTS Twenty-four studies were included with 210 patients in the bevacizumab group and 337 patients in the LITT group. Bevacizumab demonstrated symptomatic improvement/stability in 87.7% of cases, radiological improvement/stability in 86.2%, and steroid wean-off in 45%. LITT exhibited symptomatic improvement/stability in 71.2%, radiological improvement/stability in 64.7%, and steroid wean-off in 62.4%. Comparative analysis revealed statistically significant differences favoring bevacizumab in symptomatic improvement/stability (p = 0.02), while no significant differences were observed in radiological improvement/stability (p = 0.27) or steroid wean-off (p = 0.90). The rates of adverse reactions were 11.2% for bevacizumab and 14.9% for LITT (p = 0.66), with the majority being grade 2 or lower (72.2% for bevacizumab and 62.5% for LITT). CONCLUSION Both bevacizumab and LITT exhibited favorable clinical and radiological outcomes in managing RN. Bevacizumab was found to be associated with better symptomatic control compared to LITT. Patient-, diagnosis- and lesion-related factors should be considered when choosing the ideal treatment modality for RN to enhance overall patient outcomes.
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Affiliation(s)
- Neslihan Nisa Gecici
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
| | - Muhammet Enes Gurses
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US.
| | - Brandon Kaye
- Dr. Kiran C. Patel College of Allopathic Medicine, Davie, FL, 33326, US
| | | | - Chandler Berke
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
| | - Elif Gökalp
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
| | - Victor M Lu
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, US
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Gurses ME, Gökalp E, Gecici NN, Gungor A, Berker M, Ivan ME, Komotar RJ, Cohen-Gadol AA, Türe U. Creating a neuroanatomy education model with augmented reality and virtual reality simulations of white matter tracts. J Neurosurg 2024:1-10. [PMID: 38669709 DOI: 10.3171/2024.2.jns2486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 02/14/2024] [Indexed: 04/28/2024]
Abstract
OBJECTIVE The utilization of digital technologies has experienced a notable surge, particularly in cases where access to cadavers is constrained, within the context of practical neuroanatomy training. This study evaluates augmented reality (AR)- and virtual reality (VR)-based educational models for neuroanatomy education. METHODS Three-dimensional models were created using advanced photogrammetry. VR- and AR-based educational models were developed by arranging these 3D models to align with the learning objectives of neurosurgery residents and second-year medical students whose cadaveric training was disrupted due to an earthquake in Turkey. Participants engaged with and evaluated the VR- and AR-based educational models, followed by the completion of a 20-item graded user experience survey. A 10-question mini-test was given to assess the baseline knowledge level prior to training and to measure the achievement of learning objectives after training. RESULTS Forty neurosurgery residents were trained with a VR-based educational model using VR headsets. An AR-based educational model was provided online to 200 second-year medical students for their practical neuroanatomy lesson. The average correct answer rates before the training were 7.5/10 for residents and 4.8/10 for students. These rates were significantly improved after the training to 9.7/10 for residents and to 8.7/10 for students (p < 0.001). Feedback from the users concurred that VR- and AR-based training could significantly enhance the learning experience in the field of neuroanatomy. CONCLUSIONS VR/AR-based educational models have the potential to improve education. VR/AR-based training systems can serve as an auxiliary tool in neuroanatomy training, offering a realistic alternative to traditional learning tools.
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Affiliation(s)
- Muhammet Enes Gurses
- 1Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, Florida
- 2Department of Neurosurgery, Hacettepe University, Ankara, Turkey
| | - Elif Gökalp
- 3Department of Neurosurgery, Ankara University, Ankara, Turkey
| | | | - Abuzer Gungor
- 4Department of Neurosurgery, Istinye University, Istanbul, Turkey
| | - Mustafa Berker
- 2Department of Neurosurgery, Hacettepe University, Ankara, Turkey
| | - Michael E Ivan
- 1Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, Florida
| | - Ricardo J Komotar
- 1Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, Florida
| | - Aaron A Cohen-Gadol
- 5Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - Uğur Türe
- 6Department of Neurosurgery, Microsurgical Neuroanatomy Laboratory, Yeditepe University School of Medicine, Istanbul, Turkey
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Luo A, Gurses ME, Gecici NN, Kozel G, Lu VM, Komotar RJ, Ivan ME. Machine learning applications in craniosynostosis diagnosis and treatment prediction: a systematic review. Childs Nerv Syst 2024:10.1007/s00381-024-06409-5. [PMID: 38647661 DOI: 10.1007/s00381-024-06409-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 04/13/2024] [Indexed: 04/25/2024]
Abstract
Craniosynostosis refers to the premature fusion of one or more of the fibrous cranial sutures connecting the bones of the skull. Machine learning (ML) is an emerging technology and its application to craniosynostosis detection and management is underexplored. This systematic review aims to evaluate the application of ML techniques in the diagnosis, severity assessment, and predictive modeling of craniosynostosis. A comprehensive search was conducted on the PubMed and Google Scholar databases using predefined keywords related to craniosynostosis and ML. Inclusion criteria encompassed peer-reviewed studies in English that investigated ML algorithms in craniosynostosis diagnosis, severity assessment, or treatment outcome prediction. Three independent reviewers screened the search results, performed full-text assessments, and extracted data from selected studies using a standardized form. Thirteen studies met the inclusion criteria and were included in the review. Of the thirteen papers examined on the application of ML to the identification and treatment of craniosynostosis, two papers were dedicated to sagittal craniosynostosis, five papers utilized several different types of craniosynostosis in the training and testing of their ML models, and six papers were dedicated to metopic craniosynostosis. ML models demonstrated high accuracy in identifying different types of craniosynostosis and objectively quantifying severity using innovative metrics such as metopic severity score and cranial morphology deviation. The findings highlight the significant strides made in utilizing ML techniques for craniosynostosis diagnosis, severity assessment, and predictive modeling. Predictive modeling of treatment outcomes following surgical interventions showed promising results, aiding in personalized treatment strategies. Despite methodological diversities among studies, the collective evidence underscores ML's transformative potential in revolutionizing craniosynostosis management.
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Affiliation(s)
- Angela Luo
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Muhammet Enes Gurses
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA.
| | | | - Giovanni Kozel
- Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Victor M Lu
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Michael E Ivan
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
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Luther E, Ramsay I, Govindarajan V, Berke CN, Makhoul V, Merenzon M, Berry K, Morell A, Eichberg D, Lu VM, Shah A, Komotar RJ, Ivan ME. The Effect of the Coronavirus Disease 2019 Pandemic on Pituitary Surgery. World Neurosurg 2024:S1878-8750(24)00542-4. [PMID: 38583567 DOI: 10.1016/j.wneu.2024.03.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE As the coronavirus disease 2019 (COVID-19) pandemic spread to the United States in 2020, there was an impetus toward postponing or ceasing nonurgent transsphenoidal pituitary surgeries to prevent the spread of the virus. Some centers encouraged transcranial approaches for patients with declining neurologic function. However, no large-scale data exist evaluating the effects that this situation had on national pituitary practice patterns. METHODS Pituitary surgeries in the National Inpatient Sample were identified from 2017 to 2020. Surgeries in 2020 were compared with the 3 years previously to determine any differences in demographics, surgical trends/approaches, and perioperative outcomes. RESULTS In 2020, there was a decline in overall pituitary surgeries (34.2 vs. 36.3%; odds ratio (OR), 0.88; P < 0.001) yet transsphenoidal approaches represented a higher proportion of interventions (69.0 vs. 64.9%; P < 0.001). Neurosurgical complications were higher (51.9 vs. 47.4%; OR, 1.13; P < 0.001) and patients were less likely to be discharged home (86.4 vs. 88.5%; OR, 0.84; P < 0.001). This finding was especially true in April 2020 during the first peak in COVID-19 cases, when transcranial approaches and odds of mortality/complications were highest. CONCLUSIONS In 2020, transsphenoidal surgery remained the preferred approach for pituitary tumor resection despite initial recommendations against the approach to prevent COVID-19 spread. Pituitary surgeries had a higher risk of periprocedural complications despite accounting for preoperative comorbidities, COVID-19 infection status, and surgical approach, suggesting that an overwhelmed hospital system can negatively influence surgical outcomes in noninfected patients.
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Affiliation(s)
- Evan Luther
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ian Ramsay
- Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Vaidya Govindarajan
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Chandler N Berke
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA.
| | - Vivien Makhoul
- Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Martin Merenzon
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Katherine Berry
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Alexis Morell
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Daniel Eichberg
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Victor M Lu
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ashish Shah
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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Koester SW, Bishay AE, Lyons AT, Lu VM, Naik A, Graffeo CS, Levi AD, Komotar RJ. Recent Trends in Successful Neurosurgery Resident Matriculation: A Retrospective and Bibliometric Analysis. World Neurosurg 2024; 184:227-235.e1. [PMID: 38065356 DOI: 10.1016/j.wneu.2023.11.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/29/2023] [Indexed: 02/19/2024]
Abstract
BACKGROUND Prior literature has demonstrated barriers to successful residency matching, including sex, medical school background, and international medical graduate status. Our aim is to characterize the recent trends in successfully-matched residents, with particular attention to geography and academic productivity. METHODS Resident information, including demographics and educational background, was gathered from program websites. Bibliometric analysis focused on PubMed publications from the top neurosurgery journals. A top 20 medical school was defined using the US News Rankings for research in 2022. Regression analyses were performed to explore the associations between total and first-author publications and other relevant factors, correcting for graduate studies. RESULTS A total of 114 institutions and 946 residents were included in the final analysis. Of the 845 with medical school information, 62 (7.3%) completed medical school internationally and 181 of 783 (23.1%) came from a top 20 medical school. Male residents had a higher proportion of residents with international undergraduate and international medical school degrees when compared to female residents [32 (7.5%) vs. 4 (2.4%), P = 0.021; 52 (8.6%) vs. 10 (4.2%), P = 0.026; respectively]. The multivariate regression analysis demonstrated a significant increase in publications for international medical school graduates (B = 8.3, P < 0.001), top tier medical school graduate (B = 1.3, P = 0.022), and male sex (B = 1.20, P = 0.019) for total number of publications. CONCLUSIONS Geographical factors, reported sex, and graduation status have influenced how resident candidates are perceived. Understanding these trends is vital for future resident matching. Addressing gender and educational diversity is essential to foster inclusivity and research-driven environments in neurosurgery residency programs.
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Affiliation(s)
- Stefan W Koester
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
| | - Anthony E Bishay
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | | | - Victor M Lu
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Anant Naik
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Champaign, Illinois, USA
| | | | - Allan D Levi
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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Kozel G, Gurses ME, Gecici NN, Gökalp E, Bahadir S, Merenzon MA, Shah AH, Komotar RJ, Ivan ME. Chat-GPT on brain tumors: An examination of Artificial Intelligence/Machine Learning's ability to provide diagnoses and treatment plans for example neuro-oncology cases. Clin Neurol Neurosurg 2024; 239:108238. [PMID: 38507989 DOI: 10.1016/j.clineuro.2024.108238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVE Assess the capabilities of ChatGPT-3.5 and 4 to provide accurate diagnoses, treatment options, and treatment plans for brain tumors in example neuro-oncology cases. METHODS ChatGPT-3.5 and 4 were provided with twenty example neuro-oncology cases of brain tumors, all selected from medical textbooks. The artificial intelligence programs were asked to give a diagnosis, treatment option, and treatment plan for each of these twenty example cases. Team members first determined in which cases ChatGPT-3.5 and 4 provided the correct diagnosis or treatment plan. Twenty neurosurgeons from the researchers' institution then independently rated the diagnoses, treatment options, and treatment plans provided by both artificial intelligence programs for each of the twenty example cases, on a scale of one to ten, with ten being the highest score. To determine whether the difference between the scores of ChatGPT-3.5 and 4 was statistically significant, a paired t-test was conducted for the average scores given to the programs for each example case. RESULTS In the initial analysis of correct responses, ChatGPT-4 had an accuracy of 85% for its diagnoses of example brain tumors and an accuracy of 75% for its provided treatment plans, while ChatGPT-3.5 only had an accuracy of 65% and 10%, respectively. The average scores given by the twenty independent neurosurgeons to ChatGPT-4 for its accuracy of diagnosis, provided treatment options, and provided treatment plan were 8.3, 8.4, and 8.5 out of 10, respectively, while ChatGPT-3.5's average scores for these categories of assessment were 5.9, 5.7, and 5.7. These differences in average score are statistically significant on a paired t-test, with a p-value of less than 0.001 for each difference. CONCLUSIONS ChatGPT-4 demonstrates great promise as a diagnostic tool for brain tumors in neuro-oncology, as attested to by the program's performance in this study and its assessment by surveyed neurosurgeon reviewers.
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Affiliation(s)
- Giovanni Kozel
- Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Muhammet Enes Gurses
- Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | | | - Elif Gökalp
- Ankara University School of Medicine, Ankara, Turkey
| | | | - Martin A Merenzon
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Ashish H Shah
- Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Michael E Ivan
- Department of Neurosurgery, Miller School of Medicine, University of Miami, Miami, FL, USA
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Merenzon MA, Mendez Valdez MJ, Chandar J, Lu VM, Marco Del Pont F, Morell AA, Eichberg DG, Daggubati L, Benjamin CG, Shah AH, Ivan ME, Komotar RJ. Minimally invasive keyhole approach for supramaximal frontal glioma resections: technical note. J Neurosurg 2024; 140:949-957. [PMID: 38564815 DOI: 10.3171/2023.7.jns231363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 07/27/2023] [Indexed: 04/04/2024]
Abstract
OBJECTIVE The authors aimed to review the frontal lobe's surgical anatomy, describe their keyhole frontal lobectomy technique, and analyze the surgical results. METHODS Patients with newly diagnosed frontal gliomas treated using a keyhole approach with supramaximal resection (SMR) from 2016 to 2022 were retrospectively reviewed. Surgeries were performed on patients asleep and awake. A human donor head was dissected to demonstrate the surgical anatomy. Kaplan-Meier curves were used for survival analysis. RESULTS Of the 790 craniotomies performed during the study period, those in 47 patients met our inclusion criteria. The minimally invasive approach involved four steps: 1) debulking the frontal pole; 2) subpial dissection identifying the sphenoid ridge, olfactory nerve, and optic nerve; 3) medial dissection to expose the falx cerebri and interhemispheric structures; and 4) posterior dissection guided by motor mapping, avoiding crossing the inferior plane defined by the corpus callosum. A fifth step could be added for nondominant lesions by resecting the inferior frontal gyrus. Perioperative complications were recorded in 5 cases (10.6%). The average hospital length of stay was 3.3 days. High-grade gliomas had a median progression-free survival of 14.8 months and overall survival of 23.9 months. CONCLUSIONS Keyhole approaches enabled successful SMR of frontal gliomas without added risks. Robust anatomical knowledge and meticulous surgical technique are paramount for obtaining successful resections.
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Affiliation(s)
- Martín A Merenzon
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | | | - Jay Chandar
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | - Victor M Lu
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | | | - Alexis A Morell
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | - Daniel G Eichberg
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | - Lekhaj Daggubati
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | - Carolina G Benjamin
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
| | - Ashish H Shah
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
- 2Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida
| | - Michael E Ivan
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
- 2Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida
| | - Ricardo J Komotar
- 1Department of Neurological Surgery, University of Miami Hospital, Miami; and
- 2Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida
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Singh E, Gurses ME, Costello MC, Berke C, Lu VM, Daggubati L, Komotar RJ, Ivan ME, Shah AH. Correction to: Intrathecal chemotherapy for leptomeningeal disease in high-grade gliomas: a systematic review. J Neurooncol 2024:10.1007/s11060-024-04619-0. [PMID: 38446375 DOI: 10.1007/s11060-024-04619-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Affiliation(s)
- Eric Singh
- Section of Virology and Immunotherapy, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Muhammet Enes Gurses
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA.
| | - Meredith C Costello
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Chandler Berke
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Victor M Lu
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Lekhaj Daggubati
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Michael E Ivan
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
| | - Ashish H Shah
- Section of Virology and Immunotherapy, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, 33136, Miami, FL, USA
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Di L, Tiefenbach J, McCarthy DJ, Sedighim S, Dagal A, Blandino CF, Luther EM, Lu VM, Ivan ME, Komotar RJ, Eichberg DG, Shah AH. The Utility of Transcranial Electrical Stimulation Motor Evoked Potential Monitoring in Predicting Postoperative Supplementary Motor Area Syndrome and Motor Function Recovery. World Neurosurg 2024; 183:e892-e899. [PMID: 38237803 DOI: 10.1016/j.wneu.2024.01.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/09/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Postoperative hemiparesis following frontal lobe lesion resection is alarming, and predicting motor function recovery is challenging. Supplementary motor area (SMA) syndrome following resection of frontal lobe lesions is often indistinguishable from postoperative motor deficit due to surgical injury of motor tracts. We aimed to describe the use of intraoperative transcranial electrical stimulation (TES) with motor evoked potential monitoring data as a diagnostic tool to distinguish between SMA syndrome and permanent motor deficit (PMD). METHODS A retrospective analysis of 235 patients undergoing craniotomy and resection with TES-MEP monitoring for a frontal lobe lesion was performed. Patients who developed immediate postoperative motor deficit were included. Motor deficit and TES-MEP findings were categorized by muscle group as left upper extremity, left lower extremity, right upper extremity, or right lower extremity. Statistical analysis was performed to determine the predictive value of stable TES-MEP for SMA syndrome versus PMD. RESULTS This study included 20 patients comprising 29 cases of immediate postoperative motor deficit by muscle group. Of these, 27 cases resolved and were diagnosed as SMA syndrome, and 2 cases progressed to PMD. TES-MEP stability was significantly associated with diagnosis of SMA syndrome (P = 0.015). TES-MEP showed excellent diagnostic utility with a sensitivity and positive predictive value of 100% and 92.6%, respectively. Negative predictive value was 100%. CONCLUSIONS Temporary SMA syndrome is difficult to distinguish from PMD immediately postoperatively. TES-MEP may be a useful intraoperative adjunct that may aid in distinguishing SMA syndrome from PMD secondary to surgical injury.
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Affiliation(s)
- Long Di
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jakov Tiefenbach
- Department of Neurological Surgery, Cleveland Clinic Foundation, Cleveland, Ohio, USA.
| | - David J McCarthy
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Shaina Sedighim
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Arman Dagal
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Carlos F Blandino
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Evan M Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Victor M Lu
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Sylvester Comprehensive Cancer, University of Miami, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Sylvester Comprehensive Cancer, University of Miami, Miami, Florida, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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Vazquez S, Dominguez JF, Wu E, Spirollari E, Soldozy S, Ivan ME, Merenzon M, Hanft SJ, Komotar RJ. High-Volume Centers Provide Superior Value of Care in the Surgical Treatment of Malignant Brain Tumor. World Neurosurg 2024; 183:e787-e795. [PMID: 38216033 DOI: 10.1016/j.wneu.2024.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/07/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND Improved outcomes in surgical patients have been associated with increasing volume of cases. This has led to the development of centers that facilitate care for a specific patient population. This study aimed to evaluate associations of outcomes with hospital characteristics in patients undergoing resection of malignant brain tumors. METHODS The 2016-2020 National Inpatient Sample was queried for patients undergoing resection of malignant brain tumors. Teaching hospitals with caseloads >2 standard deviations above the mean (140 cases) were categorized as high-volume centers (HVCs). Value of care was evaluated by adding one point for each of the following: short length of stay, low total charges, favorable discharge disposition, and lack of major comorbidity or complication. RESULTS In 3009 hospitals, 118,390 patients underwent resection of malignant brain tumors. HVC criteria were met by 91 (3%) hospitals. HVCs were more likely to treat patients of younger age or higher socioeconomic status (P < 0.01 for all). The Mid-Atlantic and South Atlantic regions had the highest percentage of cases and number of HVCs. Value of care was higher at HVCs (P < 0.01). Care at HVCs was associated with decreased complications (P < 0.01 for all) and improved patient outcomes (P < 0.01 for all). CONCLUSIONS Patients undergoing craniotomy for malignant brain neoplasms have superior outcomes in HVCs. Trends of centralization may reflect the benefits of multidisciplinary treatment, geographic preferences, publicity, and cultural impact. Improvement of access to care is an important consideration as this trend continues.
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Affiliation(s)
- Sima Vazquez
- School of Medicine, New York Medical College, Valhalla, New York, USA.
| | - Jose F Dominguez
- Department of Neurosurgery, Westchester Medical Center, Valhalla, New York, USA
| | - Eva Wu
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Eris Spirollari
- School of Medicine, New York Medical College, Valhalla, New York, USA
| | - Sauson Soldozy
- Department of Neurosurgery, Westchester Medical Center, Valhalla, New York, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Martin Merenzon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Simon J Hanft
- Department of Neurosurgery, Westchester Medical Center, Valhalla, New York, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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11
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Ng PR, Yearley AG, Eatz TA, Ajmera S, West T, Razak SS, Lazaro T, Urakov T, Jones PS, Coumans JV, Stapleton CJ, Shankar G, Chen HI, Komotar RJ, Patel AJ, Nahed BV. Neurological Surgery Residency Programs in the United States: A National Cross-Sectional Survey. Neurosurgery 2024; 94:529-537. [PMID: 37795983 DOI: 10.1227/neu.0000000000002703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 08/04/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The Accreditation Council for Graduate Medical Education has approved 117 neurological surgery residency programs which develop and educate neurosurgical trainees. We present the current landscape of neurosurgical training in the United States by examining multiple aspects of neurological surgery residencies in the 2022-2023 academic year and investigate the impact of program structure on resident academic productivity. METHODS Demographic data were collected from publicly available websites and reports from the National Resident Match Program. A 34-question survey was circulated by e-mail to program directors to assess multiple features of neurological surgery residency programs, including curricular structure, fellowship availability, recent program changes, graduation requirements, and resources supporting career development. Mean resident productivity by program was collected from the literature. RESULTS Across all 117 programs, there was a median of 2.0 (range 1.0-4.0) resident positions per year and 1.0 (range 0.0-2.0) research/elective years. Programs offered a median of 1.0 (range 0.0-7.0) Committee on Advanced Subspecialty Training-accredited fellowships, with endovascular fellowships being most frequently offered (53.8%). The survey response rate was 75/117 (64.1%). Of survey respondents, the median number of clinical sites was 3.0 (range 1.0-6.0). Almost half of programs surveyed (46.7%) reported funding mechanisms for residents, including R25, T32, and other in-house grants. Residents received a median academic stipend of $1000 (range $0-$10 000) per year. Nearly all programs (93.3%) supported wellness activities for residents, which most frequently occurred quarterly (46.7%). Annual academic stipend size was the only significant predictor of resident academic productivity (R 2 = 0.17, P = .002). CONCLUSION Neurological surgery residency programs successfully train the next generation of neurosurgeons focusing on education, clinical training, case numbers, and milestones. These programs offer trainees the chance to tailor their career trajectories within residency, creating a rewarding and personalized experience that aligns with their career aspirations.
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Affiliation(s)
- Patrick R Ng
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Alexander G Yearley
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Tiffany A Eatz
- Department of Neurological Surgery, University of Miami, Miami , Florida , USA
| | - Sonia Ajmera
- Department of Neurological Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia , Pennsylvania , USA
| | - Timothy West
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Shahaan S Razak
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Tyler Lazaro
- Department of Neurological Surgery, Baylor College of Medicine, Houston , Texas , USA
| | - Timur Urakov
- Department of Neurological Surgery, University of Miami, Miami , Florida , USA
| | - Pamela S Jones
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Jean-Valery Coumans
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Christopher J Stapleton
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - Ganesh Shankar
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
| | - H Isaac Chen
- Department of Neurological Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia , Pennsylvania , USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami , Florida , USA
| | - Akash J Patel
- Department of Neurological Surgery, Baylor College of Medicine, Houston , Texas , USA
| | - Brian V Nahed
- Harvard Medical School, Boston , Massachusetts , USA
- Department of Neurological Surgery, Massachusetts General Hospital, Boston , Massachusetts , USA
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12
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Merenzon MA, Bhatia S, Levy A, Di L, Gurses ME, Rivera C, Daggubati L, Luther E, Shah AH, Komotar RJ, Ivan ME. The Learning Curve and Clinical Outcomes With 250 Laser Ablations for Brain Tumors: A Pathway to Experience. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01070. [PMID: 38385677 DOI: 10.1227/ons.0000000000001101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/03/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Laser interstitial thermal therapy (LITT) has gained popularity as a minimally invasive technique for treating brain tumors. Despite its proven safety profile, LITT is not yet widely available, and there is a lack of data on the learning curve required to achieve proficiency. This study analyzes a 250-patient cohort of laser-ablated tumors to describe changes in patient selection and clinical outcomes over time and experience, with the aim of providing insight into the learning curve for incorporating LITT into a neuro-oncology program and identifying a cutoff point that distinguishes novice from expert performance. METHODS We retrospectively reviewed 250 patients with brain tumor who underwent LITT between 2013 and 2022. Demographic and clinical data were analyzed. Kaplan Meier curves were used for survival analysis. Operative time was evaluated using exponential curve-fit regression analysis to identify when consistent improvement began. RESULTS The patients were divided into quartiles (Q) based on their date of surgery. Mean tumor volume increased over time (Q1 = 5.7 and Q4 = 11.9 cm3, P = .004), and newly diagnosed lesions were more frequently ablated (P = .0001). Mean operative time (Q1 v Q4 = 322.3 v 204.6 min, P < .0001) and neurosurgical readmission rate (Q1 v Q4 = 7.8% v 0%, P = .03) were reduced over time. The exponential curve-fit analysis showed a sustained decay in operative time after case #74. The extent of ablation (P = .69), the recurrence (P = .11), and the postoperative complication rate (P = .78) did not vary over time. CONCLUSION After treating 74 patients, a downward trend in the operative time is observed. Patient selection is broadened as experience increases.
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Affiliation(s)
- Martin A Merenzon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Shovan Bhatia
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Adam Levy
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Long Di
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Muhammet Enes Gurses
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Cameron Rivera
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Lekhaj Daggubati
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, Brain Tumor Initiative, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, Brain Tumor Initiative, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, Brain Tumor Initiative, University of Miami Miller School of Medicine, Miami, Florida, USA
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13
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Tiefenbach J, Lu VM, Metzler AR, Palejwala A, Haider S, Ivan ME, Komotar RJ, Shah AH. The use of advanced neuroimaging modalities in the evaluation of low-grade glioma in adults: a literature review. Neurosurg Focus 2024; 56:E3. [PMID: 38301240 DOI: 10.3171/2023.11.focus23649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 11/28/2023] [Indexed: 02/03/2024]
Abstract
Low-grade gliomas encompass a subgroup of cancerous glial cell growths within the central nervous system and are distinguished by their slow growth and relatively low malignant potential. Despite their less aggressive nature, these tumors can still cause significant neurological symptoms through the compression of surrounding neural and vascular structures and, in some instances, undergo malignant transformation. For these reasons, timely and appropriate evaluation and management of low-grade gliomas is critical. Medical imaging stands as a cornerstone for evaluating patients with low-grade gliomas because of its noninvasive nature and ability to provide a vast amount of information about the underlying lesion. With the growing number of neuroimaging techniques and their capabilities, there is a lack of clear guidance on which techniques to utilize for the assessment of low-grade gliomas and what their respective core use cases should be. In this literature review, the authors discuss in significant depth the available evidence pertaining to the use of advanced neuroimaging techniques in the evaluation and management of low-grade gliomas. Specifically, they review the specificity, sensitivity, accuracy, and use cases of magnetic resonance spectroscopy (MRS), perfusion MR imaging (perfusion MRI), diffusion tensor imaging (DTI), functional MRI (fMRI), positron emission tomography (PET), single-photon emission computed tomography (SPECT), as well as other emerging imaging techniques. They conclude that most of the advanced neuroimaging techniques are reliable in differentiating low- from high-grade gliomas, whereas MRS and DTI may further support molecular subclassification of the tumor. PET has been best employed for the purpose of tumor biopsy, whereas fMRI and DTI can be particularly valuable in preoperative surgical planning, as they delineate the functionally eloquent brain regions that need to be preserved during tumor resection. MRS, PET, SPECT, and perfusion MRI are best suited to monitor tumor progression, as their respective metrics closely correlate with the underlying metabolic activity of the tumor. Together, these techniques offer a vast amount of information and serve as tools for neurologists and neurosurgeons managing patients with low-grade gliomas.
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Affiliation(s)
| | - Victor M Lu
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
| | - Ashley R Metzler
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
| | - Ali Palejwala
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
| | - Sameah Haider
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
| | - Michael E Ivan
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
| | - Ricardo J Komotar
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
| | - Ashish H Shah
- 2Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative, Miami, Florida
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14
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Lu VM, Levi AD, Komotar RJ. Letter: The Evolving Role of Postgraduate Year 7 in Neurological Surgery Residency. Neurosurgery 2024; 94:e40. [PMID: 38078928 DOI: 10.1227/neu.0000000000002794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/02/2023] [Indexed: 01/18/2024] Open
Affiliation(s)
- Victor M Lu
- Department of Neurological Surgery, University of Miami, Miami , Florida , USA
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15
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Singh E, Gurses ME, Costello MC, Berke C, Lu VM, Daggubati L, Komotar RJ, Ivan ME, Shah AH. Intrathecal chemotherapy for leptomeningeal disease in high-grade gliomas: a systematic review. J Neurooncol 2024:10.1007/s11060-024-04582-w. [PMID: 38294637 DOI: 10.1007/s11060-024-04582-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 01/19/2024] [Indexed: 02/01/2024]
Abstract
BACKGROUND Leptomeningeal disease (LMD) secondary to high grade glioma (HGG), such as glioblastoma (GBM), are characterized by the spread of tumor cells to the leptomeninges which further complicates treatment approaches. Intrathecal (IT) chemotherapy has surfaced as a potential strategy to bypass the blood-brain barrier and address the challenges posed by disseminated disease. Here, we present a review of the safety and efficacy of IT chemotherapy in the treatment of LMD secondary to HGG. METHODS A systematic review following PRISMA guidelines was conducted searching PubMed and Embase from January 1995 to September 2022 using specified terms related to IT chemotherapy for LMD. Included articles involved patients diagnosed with LMD from HGG, treated with intrathecal chemotherapy, and provided survival data. Data, including demographics, tumor characteristics, treatment, and survival information, were collected and independently extracted. RESULTS A total of 68 patients across 10 clinical studies were diagnosed with LMD from HGG and included in the review. Among these patients, the average age at diagnosis was 44.2 years. GBM was the most common tumor type (n = 58, 85.3%). A majority of the patients presented with recurrent disease (n = 29, 60.4%). The review encompassed various IT chemotherapy regimens, including mafosfamide, thio-TEPA, 5-fluoro-2'-deoxyuridine (FdUrd), methotrexate (MTX), and cytarabine; however, dosages and frequencies were inconsistently reported. The mean progression-free survival (PFS) and overall survival (OS) for this cohort were 7.5 months and 11.7 months, respectively. Common side effects of IT chemotherapy included headaches, nausea, and vomiting, with more severe complications such as myelotoxicity, disseminated intravascular coagulopathy, meningitis, and gastrointestinal toxicity reported in some cases. CONCLUSION LMD continues to be an uncommon complication associated with HGG with a poor prognosis. This article provides an overview of the presently available literature on IT chemotherapy for LMD secondary to HGG, and their respective treatment protocols with overall survival attributes. Additional research is warranted to ascertain how to maximize the potential efficacy of IT chemotherapy as a treatment option.
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Affiliation(s)
- Eric Singh
- Section of Virology and Immunotherapy, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Muhammet Enes Gurses
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA.
| | - Meredith C Costello
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Chandler Berke
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Victor M Lu
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Lekhaj Daggubati
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Michael E Ivan
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Ashish H Shah
- Section of Virology and Immunotherapy, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Neurosurgery, Miller School of Medicine, University of Miami, 1475 NW 12th Ave, Miami, FL, 33136, USA
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16
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Levy AS, Bhatia S, Merenzon MA, Andryski AL, Rivera CA, Daggubati LC, Di L, Shah AH, Komotar RJ, Ivan ME. Exploring the Landscape of Machine Learning Applications in Neurosurgery: A Bibliometric Analysis and Narrative Review of Trends and Future Directions. World Neurosurg 2024; 181:108-115. [PMID: 37839564 DOI: 10.1016/j.wneu.2023.10.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/08/2023] [Accepted: 10/08/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND The field of neurosurgery has consistently represented an area of innovation and integration of technology since its inception. As such, machine learning (ML) has found its way into applications within neurosurgery relatively rapidly. Through this bibliometric review and cluster analysis, we seek to identify trends and emerging applications of ML within neurosurgery. METHODS A bibliometric analysis was carried out in the Web of Science database on publications from January 2000 to March 2023. The full data set of the 200 most cited publications including title, author information, journal, citation count, keywords, and abstracts for each publication was evaluated in CiteSpace. CiteSpace was used to elucidate publication characteristics, trends, and topic clusters via collaborate network analysis using the Kamada-Kawai algorithm. RESULTS The 25 most cited titles were included in our analysis. Harvard University and its affiliates represented the top institution, contributing nearly 25% of publications in the literature. WORLD NEUROSURGERY was the journal with the highest net citation count of 747 (29%). Collaborative network analysis generated 12 unique clusters, the largest of which was machine learning, followed by feature importance and deep brain stimulation. CONCLUSION This review highlights the most impactful articles pertaining to ML in the field of neurosurgery. ML has been applied into several sub-specialties within neurosurgery to optimize patient care, with special attention to outcome predictors, patient selection, and surgical decision making.
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Affiliation(s)
- Adam S Levy
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA.
| | - Shovan Bhatia
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Martin A Merenzon
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Allie L Andryski
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Cameron A Rivera
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Lekhaj C Daggubati
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Long Di
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA; Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA; Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
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17
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De Stefano FA, Morell AA, Smith G, Warner T, Soldozy S, Elarjani T, Eichberg DG, Luther E, Komotar RJ. Unique magnetic resonance spectroscopy profile of intracranial meningiomas compared to gliomas: a systematic review. Acta Neurol Belg 2023; 123:2077-2084. [PMID: 36595196 DOI: 10.1007/s13760-022-02169-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND AND PURPOSE The goal of this study was to systematically review the metabolic profile of meningiomas using magnetic resonance spectroscopy in comparison to gliomas, as measured by mean metabolite ratios. METHODS Following the PRISMA guidelines, a systematic literature review was performed using the PubMed, Ovid Embase, Web of Science, and the Cochrane databases from inception to May 2021. Studies were selected based on predetermined inclusion and exclusion criteria. RESULTS Eight studies were ultimately selected with 207 patients included. Fifty-nine patients were diagnosed with meningioma (age = 48.4, 66.7% female) and 148 patients diagnosed with glioma (age = 56.4, 49.2% female). Three studies reported elevated Cho/Cr in meningiomas compared to gliomas (5.71 vs. 1.46, p < 0.05, 7.02 vs. 2.62, p < 0.05, and 4.64 vs. 2.52, p = 0.001). One study reported Ala/Cr to be significantly elevated in meningiomas compared to gliomas (1.30 vs. undetectable, p < 0.001). One study reported myo-Inositol/Cr to be significantly elevated in meningiomas in comparison to gliomas (1.44 vs. 1.08, p < 0.05). One study reported Glu/Cr to be significantly elevated in meningiomas in comparison to gliomas (3.47 vs. 0.89, p = 0.002). Two studies reported Cho/NAA to be significantly elevated in meningiomas in comparison to gliomas (4.46 vs. 2.6, p = 0.004, and 5.8 vs. 2.55, p < 0.05). Two studies reported NAA/Cr was significantly elevated in gliomas compared to meningiomas (undetectable vs. 1.54, p < 0.001 and undetectable vs. 0.58, p < 0.05). CONCLUSIONS Significant differences in metabolite ratios between tumor types were reported in Cho/Cr, Ala/Cr, Glu/Cr, Cho/NAA, myoI/Cr and NAA/Cr between meningiomas and gliomas.
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Affiliation(s)
- Frank A De Stefano
- Department of Neurological Surgery, University of Kansas Medical Center, 3901 Rainbow Blvd # MS 3021, Kansas City, KS, USA.
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
| | - Grace Smith
- School of Medicine, Morehouse College, Atlanta, GA, USA
| | - Tyler Warner
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
| | - Sauson Soldozy
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
| | - Turki Elarjani
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami, FL, USA
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18
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Levy AS, Merenzon MA, Bhatia S, Costello MC, Di L, Lu VM, Morell AA, Daggubati L, Shah AH, Komotar RJ, Ivan ME. Same-day discharge after craniotomy for brain tumor resection: enhancing patient selection through a prognostic scoring system. Neurosurg Focus 2023; 55:E8. [PMID: 38039541 DOI: 10.3171/2023.9.focus23312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 09/28/2023] [Indexed: 12/03/2023]
Abstract
OBJECTIVE Neurosurgery, among other surgical fields, is amid a shift in patient management with enhanced recovery and same-day discharge (SDD) protocols slowly becoming more popular and feasible. While such protocols reduce the risk of nosocomial complications and improve patient satisfaction, appropriate patient selection remains an area of debate. The authors aimed to better quantify selection criteria through a prospective follow-up study of patients undergoing brain tumor resection with SDD. METHODS Three arms of analysis were carried out. First, clinical data of SDD patients were prospectively collected between August 2021 and August 2022. In parallel, a retrospective analysis of patients who qualified for SDD but were excluded at surgeon clinical discretion over the same period was performed. Third, a comparative analysis of the pilot and follow-up studies was done from which a clinical scoring system for patient selection was derived. RESULTS Over the duration of the study, 31 of 334 patients were selected for SDD while 59 qualified for SDD by previously defined criteria but were not selected at the surgeon's discretion. There was no difference in outcomes between the two groups, and there were no postoperative complications among the SDD group within 30 days of surgery. Preoperative clinical characteristics found to be significantly different between the two cohorts (left-sided lesion, extra-axial pathology, prior treatment of brain tumor, and tumor volume ≤ 11.75 cm3) were included in a predictive scoring system for successful SDD. The scoring system was found to significantly predict high or low likelihood for successful SDD when tested on the mixed prospective cohort. CONCLUSIONS This study provides a straightforward clinical scoring system for appropriate selection of candidates for SDD after craniotomy for brain tumor resection. This clinical tool aims to aid clinicians in appropriate admission course selection and builds on the growing literature surrounding same-day and outpatient cranial neurosurgery.
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Affiliation(s)
- Adam S Levy
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Martin A Merenzon
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Shovan Bhatia
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Meredith C Costello
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Long Di
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Victor M Lu
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Alexis A Morell
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Lekhaj Daggubati
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
| | - Ashish H Shah
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
- 2Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, Florida
| | - Ricardo J Komotar
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
- 2Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, Florida
| | - Michael E Ivan
- 1Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami; and
- 2Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, Florida
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19
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Lu VM, Khalafallah AM, Jaman E, Gurses ME, Komotar RJ, Ivan ME, Shah AH. Clinical course of ventriculoperitoneal shunting for hydrocephalus following glioblastoma surgery: a systematic review and meta-analysis. J Neurooncol 2023; 165:439-447. [PMID: 38112893 DOI: 10.1007/s11060-023-04538-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Surgical resection of glioblastoma (GBM) remains a cornerstone in the current treatment paradigm. The postoperative evolution of hydrocephalus necessitating ventriculoperitoneal shunting (VPS) continues to be defined. Correspondingly the objective of this study was to aggregate pertinent metadata to better define the clinical course of VPS for hydrocephalus following glioblastoma surgery in light of contemporary management. METHODS Searches of multiple electronic databases from inception to November 2023 were conducted following PRISMA guidelines. Articles were screened against pre-specified criteria. Outcomes were pooled by random-effects meta-analyses where possible. RESULTS A total of 12 cohort studies satisfied all selection criteria, describing a total of 6,098 glioblastoma patients after surgery with a total of 261 (4%) of patients requiring postoperative VPS for hydrocephalus. Meta-analysis demonstrated the estimated pooled rate of symptomatic improvement following VPS was 78% (95% CI 66-88), and the estimated pooled rate of VPS revision was 24% (95% CI 16-33). Pooled time from index glioblastoma surgery to VPS surgery was 4.1 months (95% CI 2.8-5.3), and pooled survival time for index VPS surgery was 7.3 months (95% CI 5.4-9.4). Certainty of these outcomes were limited by the heterogenous and palliative nature of postoperative glioblastoma management. CONCLUSIONS Of the limited proportion of glioblastoma patients requiring VPS surgery for hydrocephalus after index surgery, 78% patients are expected to show symptom improvement, and 24% can expect to undergo revision surgery. An individualized approach to each patient is required to optimize both index glioblastoma and VPS surgeries to account for anatomy and goals of care given the poor prognosis of this tumor overall.
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Affiliation(s)
- Victor M Lu
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA.
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, 33136, Miami, FL, USA.
| | - Adham M Khalafallah
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA
| | - Emade Jaman
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA
| | - Muhammet Enes Gurses
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, Jackson Memorial Hospital, Miami, FL, USA
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20
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Maddy K, Luther E, Berry K, Lu VM, Shah A, Ivan ME, Komotar RJ. Rathke's cleft cysts causing Cushing's disease: Two unique cases and review of the literature. Surg Neurol Int 2023; 14:402. [PMID: 38053717 PMCID: PMC10695451 DOI: 10.25259/sni_616_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/19/2023] [Indexed: 12/07/2023] Open
Abstract
Background The presentation of isolated Rathke's cleft cysts (RCC) without any associated pituitary adenoma in patients with symptoms consistent with Cushing's disease (CD) remains exceedingly rare. As such, we aim to present two cases of RCC presenting with CD with a resultant resolution of their CD following surgical resection. Case Description Here, we present two cases of RCCs presenting with symptoms suggestive of CD. A functional pituitary microadenoma was the presumed diagnosis based on initial clinical presentation and diagnostic imaging suggesting a pituitary lesion. However, pathology results demonstrated no evidence of adenoma but cysts lined with columnar epithelia consistent with RCC. Complete surgical resection was achieved in both patients through endoscopic endonasal pituitary resection with postoperative symptomatic resolution and normalization of cortisol levels. In addition, we discuss the literature on this rare presentation and suggest a pathological mechanism for this unique presentation of RCC-causing CD. Conclusion Surgical resection of RCC may provide a "biochemical cure" for patients presenting with CD, as demonstrated by these two unique cases. The clinical features, histological findings, and possible pathological mechanisms for this unique presentation of RCC causing CD discussed lay the groundwork for future studies into the pathophysiology of RCC and CD.
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Affiliation(s)
- Krisna Maddy
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Evan Luther
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Katherine Berry
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Victor M. Lu
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Ashish Shah
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Michael E. Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Ricardo J. Komotar
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, United States
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21
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King H, Morell AA, Luther E, Mendez Valdez MJ, Hernandez M, Makhoul V, Shah AH, Eichberg DE, Lu VM, Kader M, Patel N, Higgins D, Komotar RJ, Ivan ME. Evaluating Predictors of Successful Postoperative Day 1 Discharge Following Posterior Fossa Tumor Resection. World Neurosurg 2023; 179:e102-e109. [PMID: 37574194 DOI: 10.1016/j.wneu.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Current trends in surgical neuro-oncology show that early discharges are safe and feasible with shorter lengths of stay (LOS) and fewer thromboembolic complications, fewer hospital-acquired infections, reduced costs, and greater patient satisfaction. Traditionally, infratentorial tumor resections have been associated with longer LOS and limited data exist evaluating predictors of early discharge in these patients. The objective was to assess patients undergoing posterior fossa craniotomies for tumor resection and identify variables associated with postoperative day 1 (POD1) discharge. METHODS A retrospective review of posterior fossa craniotomies for tumor resection at our institution was performed from 2011 to 2020. Laser ablations, nontumoral pathologies, and biopsies were excluded. Demographic, clinical, surgical, and postoperative data were collected. RESULTS One hundred and seventy-three patients were identified and 25 (14.5%) were discharged on POD1. Median length of stay (LOS) was 6 days. The POD1 discharges had significantly better preoperative Karnofsky performance scores (P < 0.001) and modified Rankin scores (P = 0.002) and more frequently presented electively (P = 0.006) and without preoperative neurologic deficits (P = 0.021). No statistically significant difference in 30-day readmissions and rates of PE, UTI, and DVT was found. Univariate logistic regression identified better preoperative functional status, elective admission, and lack of preoperative hydrocephalus as predictors of POD1 discharge, however only the latter remained significant in the multivariable model (P = 0.001). CONCLUSIONS Discharging patients on POD1 is feasible following posterior fossa tumor resection in a select group of patients. Although we found that the only independent predictor for a longer LOS was preoperative hydrocephalus, larger, prospective studies are needed to confirm these findings.
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Affiliation(s)
- Hunter King
- Department of Neurosurgery, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Alexis A Morell
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Evan Luther
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Mynor J Mendez Valdez
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA.
| | - Melissa Hernandez
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Vivien Makhoul
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Daniel E Eichberg
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Victor M Lu
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael Kader
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Nitesh Patel
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Dominique Higgins
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA; Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
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22
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Daggubati LC, Ramos-Fresnedo A, Merenzon MA, Bhatia S, Morell AA, Berry KM, Chandar J, Shah AH, Komotar RJ, Ivan ME. Bilateral Laser Interstitial Thermal Therapy for Butterfly Gliomas Compared With Needle Biopsy: A Preliminary Survival Study. Oper Neurosurg (Hagerstown) 2023; 25:435-440. [PMID: 37846139 DOI: 10.1227/ons.0000000000000850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 06/02/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Bilateral/butterfly glioblastoma (bGBM) has a poor prognosis. Resection of these tumors is limited due to severe comorbidities that arise from surgical procedures. Laser interstitial thermal therapy (LITT) offers a minimally invasive cytoreductive therapy for deep-seated tumors such as bGBM. The objective of this study was to evaluate the safety of bilateral LITT in patients with bGBM. METHODS Medical records of all consecutive patients diagnosed with bGBM by a single surgeon at a single institution from January 2014 to August 2022 were reviewed. Clinical, safety, and radiographic volumetric data were obtained. In addition, an exploratory analysis of survival was performed. RESULTS A total of 25 patients were included; 14 underwent biopsy only, and 11 underwent biopsy + LITT (7 underwent bilateral and 4 underwent unilateral LITT). No (0%) intraoperative or postoperative complications were recorded in the treatment group. Tumor volume negatively correlated with extent of treatment (r 2 = 0.44, P = .027). The median progression-free survival was 2.8 months in the biopsy-only group and 5.5 months in the biopsy + LITT group ( P = .026). The median overall survival was 4.3 months in the biopsy-only group and 10.3 months in the biopsy + LITT group ( P = .035). CONCLUSION Bilateral LITT for bGBM can be safely performed and shows early improvement of the progression-free survival and long-term survival outcomes of these patients.
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Affiliation(s)
- Lekhaj C Daggubati
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | | | - Martin A Merenzon
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Shovan Bhatia
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Katherine M Berry
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Jay Chandar
- Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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23
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Chandar JS, Bhatia S, Ingle S, Mendez Valdez MJ, Maric D, Seetharam D, Desgraves JF, Govindarajan V, Daggubati L, Merenzon M, Morell A, Luther E, Saad AG, Komotar RJ, Ivan ME, Shah AH. Laser Interstitial Thermal Therapy Induces Robust Local Immune Response for Newly Diagnosed Glioblastoma With Long-term Survival and Disease Control. J Immunother 2023; 46:351-354. [PMID: 37727953 PMCID: PMC10591996 DOI: 10.1097/cji.0000000000000485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/14/2023] [Indexed: 09/21/2023]
Abstract
Laser interstitial thermal therapy (LITT) is a minimally invasive neurosurgical technique used to ablate intra-axial brain tumors. The impact of LITT on the tumor microenvironment is scarcely reported. Nonablative LITT-induced hyperthermia (33-43˚C) increases intra-tumoral mutational burden and neoantigen production, promoting immunogenic cell death. To understand the local immune response post-LITT, we performed longitudinal molecular profiling in a newly diagnosed glioblastoma and conducted a systematic review of anti-tumoral immune responses after LITT. A 51-year-old male presented after a fall with progressive dizziness, ataxia, and worsening headaches with a small, frontal ring-enhancing lesion. After clinical and radiographic progression, the patient underwent stereotactic needle biopsy, confirming an IDH-WT World Health Organization Grade IV Glioblastoma, followed by LITT. The patient was subsequently started on adjuvant temozolomide, and 60 Gy fractionated radiotherapy to the post-LITT tumor volume. After 3 months, surgical debulking was conducted due to perilesional vasogenic edema and cognitive decline, with H&E staining demonstrating perivascular lymphocytic infiltration. Postoperative serial imaging over 3 years showed no evidence of tumor recurrence. The patient is currently alive 9 years after diagnosis. Multiplex immunofluorescence imaging of pre-LITT and post-LITT biopsies showed increased CD8 and activated macrophage infiltration and programmed death ligand 1 expression. This is the first depiction of the in-situ immune response to LITT and the first human clinical presentation of increased CD8 infiltration and programmed death ligand 1 expression in post-LITT tissue. Our findings point to LITT as a treatment approach with the potential for long-term delay of recurrence and improving response to immunotherapy.
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Affiliation(s)
- Jay S. Chandar
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
- Florida International University Herbert Wertheim College of Medicine, Miami, Florida, United States
| | - Shovan Bhatia
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Shreya Ingle
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Mynor J. Mendez Valdez
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Dragan Maric
- National Institutes of Health, National Institute of Neurological Disorders and Stroke (NINDS), Bethesda, Maryland, United States
| | - Deepa Seetharam
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Jelisah F. Desgraves
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Vaidya Govindarajan
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Lekhaj Daggubati
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Martin Merenzon
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Alexis Morell
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Evan Luther
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Ali G. Saad
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Ricardo J. Komotar
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Michael E. Ivan
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
| | - Ashish H. Shah
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, United States
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24
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Vazquez S, Dominguez JF, Das A, Soldozy S, Kinon MD, Ragheb J, Hanft SJ, Komotar RJ, Morcos JJ. Treatment of Chiari malformations with craniovertebral junction anomalies: Where do we stand today? World Neurosurg X 2023; 20:100221. [PMID: 37456684 PMCID: PMC10338356 DOI: 10.1016/j.wnsx.2023.100221] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/14/2023] [Accepted: 06/12/2023] [Indexed: 07/18/2023] Open
Abstract
Background Chiari malformation type 1 (CM-1) is characterized by cerebellar tonsil herniation through the foramen magnum and can be associated with additional craniovertebral junction anomalies (CVJA). The pathophysiology and treatment for CM-1 with CVJA (CM-CVJA) is debated. Objective To evaluate the trends and outcomes of surgical interventions for patients with CM-CVJA. Methods A systematic review of the literature was performed to obtain articles describing surgical interventions for patients with CM-CVJA. Articles included were case series describing surgical approach; reviews were excluded. Variables evaluated included patient characteristics, approach, and postoperative outcomes. Results The initial query yielded 403 articles. Twelve articles, published between 1998-2020, met inclusion criteria. From these included articles, 449 patients underwent surgical interventions for CM-CVJA. The most common CVJAs included basilar invagination (BI) (338, 75.3%), atlantoaxial dislocation (68, 15.1%) odontoid process retroflexion (43, 9.6%), and medullary kink (36, 8.0%). Operations described included posterior fossa decompression (PFD), transoral (TO) decompression, and posterior arthrodesis with either occipitocervical fusion (OCF) or atlantoaxial fusion. Early studies described good results using combined ventral and posterior decompression. More recent articles described positive outcomes with PFD or posterior arthrodesis in combination or alone. Treatment failure was described in patients with PFD alone that later required posterior arthrodesis. Additionally, reports of treatment success with posterior arthrodesis without PFD was seen. Conclusion Patients with CM-CVJA appear to benefit from posterior arthrodesis with or without decompressive procedures. Further definition of the pathophysiology of craniocervical anomalies is warranted to identify patient selection criteria and ideal level of fixation.
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Affiliation(s)
- Sima Vazquez
- School of Medicine, New York Medical College, Valhalla, NY, USA
| | - Jose F. Dominguez
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
| | - Ankita Das
- School of Medicine, New York Medical College, Valhalla, NY, USA
| | - Sauson Soldozy
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
| | - Merritt D. Kinon
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
| | - John Ragheb
- Department of Neurosurgery, Brian Institute, Nicklaus Children's Hospital, Miami, FL, USA
| | - Simon J. Hanft
- Department of Neurosurgery, Westchester Medical Center, Valhalla, NY, USA
| | - Ricardo J. Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jacques J. Morcos
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
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25
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Koester SW, Bishay AE, Lyons AT, Lu VM, Naik A, Graffeo CS, Levi AD, Komotar RJ. The Neurosurgery Match: COVID-19 Comparison and Bibliometric Analysis. World Neurosurg 2023; 178:e13-e23. [PMID: 37270100 PMCID: PMC10278925 DOI: 10.1016/j.wneu.2023.05.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/05/2023]
Abstract
BACKGROUND Because of the effect of COVID-19 on academic opportunities, as well as limitations on travel, away rotations and in-person interviews, COVID-19-related changes could impact the neurosurgical resident demographics. Our aim was to retrospectively review the demographics of the previous 4 years of neurosurgery residents, provide bibliometric analysis of successful applicants, and analyze for the effects of COVID-19 on the match cycle. METHODS All American Association of Neurological Surgeons' residency program websites were examined for a list of demographic characteristics for current postgraduate years 1 to 4. Gathered information included gender, undergraduate and medical institution and state, medical degree status, and prior graduate programs. RESULTS A total of 114 institutions and 946 residents were included in the final review. Most (676, or 71.5%) of the residents included in the analysis were male. Of the 783 who studied within the United States, 221 (28.2%) residents stayed within the same state of his or her medical school. Fewer residents (104 of 555, or 18.7%) stayed within the same state of his or her undergraduate school. Demographic information and geographic switching relative to medical school, undergraduate school, and hometown showed no significant changes between pre-COVID-19 and COVID-19-matched cohorts overall. The median number of publications per resident significantly increased for the COVID-19-matched cohort (median, 1; interquartile range [IQR], 0-4.75) when compared with the non-COVID-19-matched cohort (median, 1; IQR, 0-3, P = 0.004), as did first author publications (median, 1; IQR, 0-1 vs. median, 1; IQR, 0-1; P = 0.015), respectively. The number of residents matching into the same region in the Northeast relative to undergraduate degree was significantly greater after COVID-19 (56 [58%] versus 36 [42%], P = 0.026). The West demonstrated a significant increase in the mean number of total publications (4.0 ± 8.5 vs. 2.3 ± 4.2, P = 0.02) and first author publications (1.24 ± 2.33 vs. 0.68 ± 1.47, P = 0.02) after COVID-19, with the increase in first author publications being significant in a test of medians. CONCLUSIONS Herein we characterized the most recently matched neurosurgery applicants, paying particular attention to changes over time in relation to the onset of the pandemic. Apart from publication volume, characteristics of residents and geographical preferences did not change with the influence of COVID-19-induced changes in the application process.
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Affiliation(s)
- Stefan W Koester
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
| | - Anthony E Bishay
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | | | - Victor M Lu
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Anant Naik
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Champaign, Illinois, USA
| | | | - Allan D Levi
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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26
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Merenzon MA, Patel NV, Komotar RJ, Ivan ME. In Reply: Newly Diagnosed Adult Basal Ganglia Gliomas Treated With Laser Interstitial Thermal Therapy: A Comparative Cohort With Needle Biopsy. Oper Neurosurg (Hagerstown) 2023; 25:e190-e191. [PMID: 37387567 DOI: 10.1227/ons.0000000000000821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 07/01/2023] Open
Affiliation(s)
- Martín A Merenzon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Nitesh V Patel
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
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27
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Costello MC, Venigalla G, Merenzon MA, Bhatia S, Morell AA, Daggubati L, Luther E, Shah AH, Komotar RJ, Ivan ME. Surgical management of brain metastasis from ovarian cancer: a systematic review and case series. Neurosurg Focus 2023; 55:E12. [PMID: 37527683 DOI: 10.3171/2023.5.focus23115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/16/2023] [Indexed: 08/03/2023]
Abstract
OBJECTIVE Ovarian cancer is a rare origin of brain metastasis (BM), with an incidence of only 1%-3%. Consequently, the literature is sparse, and no treatment consensus guideline is available for ovarian BM. The authors conducted a systematic review of ovarian BM and performed a combined pooled cohort survival analysis with their case series. METHODS A systematic review of PubMed, Scopus, and Web of Science consistent with PRISMA guidelines along with an institutional retrospective chart review was conducted. Inclusion criteria for the systematic review included patients with confirmed BM and primary ovarian cancer, reported perioperative complications and outcomes, differentiated histology, and explicitly reported individual patient data. Reviews, commentaries, technical notes, and articles without English-language translations were excluded. The Newcastle-Ottawa Quality Assessment Scale was used independently by the first and second authors to assess the quality of each article. The authors performed univariate and multivariate analyses of several survival prognostic factors. Kaplan-Meier curves were generated for significant prognostic factors in the univariate analysis. RESULTS A total of 48 patients with individual data across 34 studies and 8 patients from the authors' institution were included. All patients (n = 56) underwent resection for BM; 83.9% received adjuvant radiotherapy following surgery and 41.1% of patients received adjuvant chemotherapy. The median progression-free survival was 12 months (range 2-43 months). The median overall survival was 9 months (range 1-49 months). On univariate analysis, a single BM and no extracranial metastasis conferred a survival benefit, while clear cell carcinoma as the primary histology corresponded to worsened OS. Multivariable analysis showed that age > 50 years (p = 0.002) and > 1 BM (p < 0.001) were risk factors for poor prognosis. Protective factors included the addition of the following multimodal adjuvant therapy with surgery: radiotherapy (p = 0.002), chemotherapy and radiotherapy (p = 0.005), and stereotactic radiosurgery (p = 0.002). CONCLUSIONS Although the scarcity of published individual patient data hinders the determination of optimal management, the authors' analysis highlights that multimodal therapies, a single cranial lesion, and age < 50 years are associated with increased survival for patients with ovarian BMs.
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Affiliation(s)
| | | | | | | | | | | | | | - Ashish H Shah
- 1Department of Neurosurgery and
- 2Sylvester Comprehensive Cancer Center, University of Miami, Florida
| | - Ricardo J Komotar
- 1Department of Neurosurgery and
- 2Sylvester Comprehensive Cancer Center, University of Miami, Florida
| | - Michael E Ivan
- 1Department of Neurosurgery and
- 2Sylvester Comprehensive Cancer Center, University of Miami, Florida
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28
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Terry F, Merenzon MA, Daggubati L, Zullo K, Levy AS, Bhatia S, Luther E, Komotar RJ, Shah AH, Ivan ME. Two-stage radiosurgery for large brain metastases: a systematic review and meta-analysis of clinical outcomes. Neurosurg Focus 2023; 55:E5. [PMID: 37527668 DOI: 10.3171/2023.5.focus23232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/22/2023] [Indexed: 08/03/2023]
Abstract
OBJECTIVE Brain metastases (BMs) are the most common intracranial tumors. In several cases, they present as large masses, which are related to a worse prognosis and more complex therapeutic alternatives. Staged radiosurgery is reported to achieve local control with minimal radiation-related adverse events in BMs. However, no methodological consensus has been achieved in its use for large brain metastases (LBMs; > 2 cm). Therefore, the authors aimed to determine the effectiveness and safety of 2-stage Gamma Knife radiosurgery (GKRS) for LBMs, in order to optimize patients' postoperative course. METHODS A systematic review of available literature was run in PubMed/MEDLINE, Scopus, Web of Science, Cochrane (OvidSP), and Google Scholar for works published up to December 14, 2022. Nonrandomized clinical trials, case series, and cohort studies were included. The risk of bias was assessed using the Risk of Bias in Nonrandomized Studies-of Interventions (ROBINS-I) and Joanna Briggs Institute tools. Pooled mean difference and rates estimates were calculated by a random-effects model meta-analysis. The degree of heterogeneity was expressed using the I2 statistic. A subgroup analysis was performed. Ultimately, the certainty of evidence was evaluated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) assessment. RESULTS Fourteen studies met the eligibility criteria (cohorts, case series, and nonrandomized clinical trials), including 958 patients. A total pooled mean volume reduction of 6.27 cm3 (95% CI 5.67-6.88 cm3) and 54.36% (95% CI 39.92%-68.79%) after 2-stage GKRS was reported. Pooled rates of complete response (44.63%; 95% CI 26.50%-64.31%), neurological mortality (16.19%; 95% CI 7.68%-30.98%), and all-cause mortality (47.92%; 95% CI 28.04%-68.49%) were calculated. Overall certainty of evidence ranged from very low to moderate. CONCLUSIONS Two-stage GKRS is an effective and safe approach for the treatment of LBMs. Nevertheless, the lack of available literature and the weak methodological approaches used determine a low to very low certainty of evidence and cannot provide robust evidence to recommend this intervention. Therefore, it is necessary to conduct higher-quality primary studies.
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Affiliation(s)
- Fernando Terry
- 1Department of Neurosurgery, Clínica Internacional, Lima, Perú
| | - Martin A Merenzon
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Lekhaj Daggubati
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Kyle Zullo
- 3American University of Antigua College of Medicine, New York, New York
| | - Adam S Levy
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Shovan Bhatia
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Evan Luther
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Ricardo J Komotar
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Ashish H Shah
- 2Department of Neurological Surgery, University of Miami, Florida; and
| | - Michael E Ivan
- 2Department of Neurological Surgery, University of Miami, Florida; and
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Shah AH, Rivas SR, Doucet-O'Hare TT, Govindarajan V, DeMarino C, Wang T, Ampie L, Zhang Y, Banasavadi-Siddegowda YK, Walbridge S, Maric D, Garcia-Montojo M, Suter RK, Lee MH, Zaghloul KA, Steiner J, Elkahloun AG, Chandar J, Seetharam D, Desgraves J, Li W, Johnson K, Ivan ME, Komotar RJ, Gilbert MR, Heiss JD, Nath A. Human endogenous retrovirus K contributes to a stem cell niche in glioblastoma. J Clin Invest 2023; 133:e167929. [PMID: 37395282 DOI: 10.1172/jci167929] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 05/19/2023] [Indexed: 07/04/2023] Open
Abstract
Human endogenous retroviruses (HERVs) are ancestral viral relics that constitute nearly 8% of the human genome. Although normally silenced, the most recently integrated provirus HERV-K (HML-2) can be reactivated in certain cancers. Here, we report pathological expression of HML-2 in malignant gliomas in both cerebrospinal fluid and tumor tissue that was associated with a cancer stem cell phenotype and poor outcomes. Using single-cell RNA-Seq, we identified glioblastoma cellular populations with elevated HML-2 transcripts in neural progenitor-like cells (NPC-like) that drive cellular plasticity. Using CRISPR interference, we demonstrate that HML-2 critically maintained glioblastoma stemness and tumorigenesis in both glioblastoma neurospheres and intracranial orthotopic murine models. Additionally, we demonstrate that HML-2 critically regulated embryonic stem cell programs in NPC-derived astroglia and altered their 3D cellular morphology by activating the nuclear transcription factor OCT4, which binds to an HML-2-specific long-terminal repeat (LTR5Hs). Moreover, we discovered that some glioblastoma cells formed immature retroviral virions, and inhibiting HML-2 expression with antiretroviral drugs reduced reverse transcriptase activity in the extracellular compartment, tumor viability, and pluripotency. Our results suggest that HML-2 fundamentally contributes to the glioblastoma stem cell niche. Because persistence of glioblastoma stem cells is considered responsible for treatment resistance and recurrence, HML-2 may serve as a unique therapeutic target.
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Affiliation(s)
- Ashish H Shah
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Sarah R Rivas
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Tara T Doucet-O'Hare
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - Vaidya Govindarajan
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Catherine DeMarino
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Tongguang Wang
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Leonel Ampie
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Yong Zhang
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | | | - Stuart Walbridge
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Dragan Maric
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Marta Garcia-Montojo
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Robert K Suter
- Georgetown University, Bioinformatics Section, Washington, DC, USA
| | - Myoung-Hwa Lee
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Kareem A Zaghloul
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Joseph Steiner
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Abdel G Elkahloun
- Cancer Genetics Branch, National Human Genome Research Institute, NIH, Bethesda, Maryland, USA
| | - Jay Chandar
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Deepa Seetharam
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Jelisah Desgraves
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Wenxue Li
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Kory Johnson
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Michael E Ivan
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Ricardo J Komotar
- University of Miami School of Medicine, Department of Neurosurgery, Miami, Florida, USA
| | - Mark R Gilbert
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA
| | - John D Heiss
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
| | - Avindra Nath
- National Institute of Neurological Disorders and Stroke, NIH, Bethesda, Maryland, USA
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Higgins D, Shah AH, Komotar RJ, Ivan ME. Management of Atypical and Anaplastic Meningiomas. Neurosurg Clin N Am 2023; 34:437-446. [PMID: 37210132 DOI: 10.1016/j.nec.2023.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Meningiomas are the most prevalent primary tumor of central nervous system origin, and although most of these neoplasms are benign, a small proportion exemplifies an aggressive profile characterized by high recurrence rates, pleomorphic histology, and overall resistance to standard treatment. Standard initial therapy for malignant meningiomas includes maximal safe surgical resection followed by focal radiation. The role for chemotherapy during recurrence of these aggressive meningiomas is less clear. Prognosis is poor, and recurrence of malignant meningiomas is high. This article provides an overview of atypical and anaplastic "malignant" meningiomas, their treatment, and ongoing research looking for more effective treatments.
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Affiliation(s)
| | - Ashish H Shah
- Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative
| | - Ricardo J Komotar
- Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative.
| | - Michael E Ivan
- Department of Neurosurgery, University of Miami, University of Miami Brain Tumor Initiative
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31
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Soldozy S, Eichberg DG, Morell AA, Luther E, Lu VM, Higgins DMO, Patel NV, Shah AH, Hanft SJ, Komotar RJ, Ivan ME. Oncolytic Virotherapy for High-Grade Glioma and Current Evidence and Factors to Consider for Incorporation into Clinical Practice. Pathogens 2023; 12:861. [PMID: 37513708 PMCID: PMC10386040 DOI: 10.3390/pathogens12070861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/16/2023] [Accepted: 06/16/2023] [Indexed: 07/30/2023] Open
Abstract
Brain tumor incidence is on the rise, and glioblastoma comprises the majority of primary tumors. Despite maximal safe resection and adjuvant chemoradiation, median survival for high-grade glioma remains poor. For this reason, it is important to develop and incorporate new treatment strategies. Oncolytic virotherapy has emerged as a viable new therapeutic entity to fill this gap. Preclinical research has shown oncolytic virotherapy to be a robust and effective treatment option for brain tumors, and clinical trials for both adult and pediatric high-grade glioma are underway. The unique and protected environment of the nervous system, in part due to the blood-brain barrier, prevents traditional systemic therapies from achieving adequate penetration. Brain tumors are also heterogenous in nature due to their diverse molecular profiles, further complicating systemic treatment efforts. Oncolytic viruses may serve to fill this gap in brain tumor treatment given their amenability to genetic modification and ability to target unique tumor epitopes. In addition, direct inoculation of the oncolytic virus agent to the tumor bed following surgical resection absolves risk of systemic side effects and ensures adequate delivery. As virotherapy transitions from bench to bedside, it is important to discuss factors to make this transition more seamless. In this article, we describe the current clinical evidence as it pertains to oncolytic virotherapy and the treatment of brain tumors as well as factors to consider for its incorporation into neurosurgical workflow.
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Affiliation(s)
- Sauson Soldozy
- Department of Neurosurgery, Westchester Medical Center, New York Medical College, 100 Woods Road, Valhalla, New York, NY 10595, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
| | - Victor M Lu
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
| | - Dominique M O Higgins
- Department of Neurosurgery, University of North Carolina Medical Center, 101 Manning Dr, Chapel Hill, NC 27514, USA
| | - Nitesh V Patel
- Department of Neurosurgery, Hackensack Meridian School of Medicine, Hackensack Meridian Health-Jersey Shore University Medical Center, Nutley, NJ 07110, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
| | - Simon J Hanft
- Department of Neurosurgery, Westchester Medical Center, New York Medical College, 100 Woods Road, Valhalla, New York, NY 10595, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, 1295 NW 14th St, Miami, FL 33125, USA
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Merenzon MA, Levy AS, Bhatia S, Rivera C, Morell AA, Semonche A, Daggubati LC, Luther E, Komotar RJ, Shah AH, Ivan ME. Towards the definition of progressive disease in brain metastasis treated with laser ablation: an evidence-based study. J Neurooncol 2023:10.1007/s11060-023-04360-0. [PMID: 37306886 DOI: 10.1007/s11060-023-04360-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 05/31/2023] [Indexed: 06/13/2023]
Abstract
PURPOSE The postoperative period after laser interstitial thermal therapy (LITT) is marked by a temporary increase in volume, which can impact the accuracy of radiographic assessment. The current criteria for progressive disease (PD) suggest that a 20% increase in size of brain metastasis (BM) assessed in 6-12 weeks intervals should be considered as local progression (LP). However, there is no agreement on how LP should be defined in this context. In this study, we aimed to statistically analyze which tumor volume variations were associated with LP. METHODS We analyzed 40 BM that underwent LITT between 2013 and 2022. For this study, LP was defined following radiographic features. A ROC curve was generated to evaluate volume change as a predictor of LP and find the optimal cutoff point. A logistic regression analysis and Kaplan Meier curves were performed to assess the impact of various clinical variables on LP. RESULTS Out of 40 lesions, 12 (30%) had LP. An increase in volume of 25.6% from baseline within 120-180 days after LITT presented a 70% sensitivity and 88.9% specificity for predicting LP (AUC: 0.78, p = 0.041). The multivariate analysis showed a 25% increase in volume between 120 and 180 days as a negative predictive factor (p = 0.02). Volumetric changes within 60-90 days after LITT did not predict LP (AUC: 0.57; p = 0.61). CONCLUSION Volume changes within the first 120 days after the procedure are not independent indicators of LP of metastatic brain lesions treated with LITT.
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Affiliation(s)
- Martin A Merenzon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA.
| | - Adam S Levy
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
| | - Shovan Bhatia
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
| | - Cameron Rivera
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
| | - Alexa Semonche
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
- Department of Neurosurgery, University of California, San Francisco, School of Medicine, 533 Parnassus Ave, San Francisco, CA, 94143, USA
| | - Lekhaj C Daggubati
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, 1475 NW 12th Ave, Miami, FL, 33136, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace 2nd Floor, (D4-6), Miami, FL, 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, 1475 NW 12th Ave, Miami, FL, 33136, USA
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Levy AS, Merenzon MA, Eatz T, Morell AA, Eichberg DG, Bloom MJ, Shah AH, Komotar RJ, Ivan ME. Development of an enhanced recovery protocol after laser ablation surgery protocol: a preliminary analysis. Neurooncol Pract 2023; 10:281-290. [PMID: 37188164 PMCID: PMC10180378 DOI: 10.1093/nop/npad007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background Enhanced recovery after surgery (ERAS) programs are a model of care that aim to improve patient outcomes, reduce complications, and facilitate recovery while reducing healthcare-associated costs and admission length. While such programs have been developed in other surgical subspecialties, there have yet to be guidelines published specifically for laser interstitial thermal therapy (LITT). Here we describe the first multidisciplinary ERAS preliminary protocol for LITT for the treatment of brain tumors. Methods Between the years 2013 and 2021, 184 adult patients consecutively treated with LITT at our single institution were retrospectively analyzed. During this time, a series of pre, intra, and postoperative adjustments were made to the admission course and surgical/anesthesia workflow with the goal of improving recovery and admission length. Results The mean age at surgery was 60.7 years with a median preoperative Karnofsky performance score of 90 ± 13. Lesions were most commonly metastases (50%) and high-grade gliomas (37%). The mean length of stay was 2.4 days, with the average patient being discharged 1.2 days after surgery. There was an overall readmission rate of 8.7% with a LITT-specific readmission rate of 2.2%. Three of 184 patients required repeat intervention in the perioperative period, and there was one perioperative mortality. Conclusions This preliminary study shows the proposed LITT ERAS protocol to be a safe means of discharging patients on postoperative day 1 while preserving outcomes. Although future prospective work is needed to validate this protocol, results show the ERAS approach to be promising for LITT.
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Affiliation(s)
- Adam S Levy
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
| | - Martin A Merenzon
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
| | - Tiffany Eatz
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
| | - Marc J Bloom
- Department of Anesthesiology, University of Miami Health System, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
- Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, 1095 NW 14th Terrace, Miami, Florida, 33136, USA
- Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
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Lu VM, Cordeiro JG, Urakov T, Benveniste RJ, Levi AD, Komotar RJ. Letter: Integration of Veterans Affairs Medical Centers Into Neurosurgical Residency Programs. Neurosurgery 2023; 92:e135-e136. [PMID: 36961223 DOI: 10.1227/neu.0000000000002470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/07/2023] [Indexed: 03/25/2023] Open
Affiliation(s)
- Victor M Lu
- Department of Neurological Surgery, University of Miami, Miami , Florida , USA
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Rubino F, Eichberg DG, Saad AG, Komotar RJ, Ivan ME. Synchronous Posterior and Anterior Pituitary Tumors: A Case Report of a Hypothetic Paracrine Relationship. Asian J Neurosurg 2023; 18:377-382. [PMID: 37397038 PMCID: PMC10313437 DOI: 10.1055/s-0043-1768601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023] Open
Abstract
Tumors of the posterior pituitary are a distinct group of low-grade sellar neoplasms. Furthermore, the coexistence with an anterior pituitary tumor is extremely unlikely and could not be a mere coincidence and could be a paracrine relationship. Here, we present a case of 41-year-old woman with Cushing syndrome and two pituitary masses on magnetic resonance imaging. Histologic examination shows two distinct lesions. The first consisted of a pituitary adenoma with intense adrenocorticotropic hormone immunostaining and the second lesion consisted of a proliferation of pituicytes arranged in vague fascicles or pituicytoma. After a narrative review of the literature, we found that synchronous pituitary adenoma and a thyroid transcription factor 1 (TTF-1) pituitary tumor were only reported eight times in the past. These patients included two granular cell tumors and six pituicytomas and all of them coexisted with pituitary adenomas, seven functioning and one nonfunctioning. We analyze the hypothesis of a possible paracrine relationship for this concomitance, but this exceedingly rare situation is still a matter of debate. To the best of our knowledge, our case represents the ninth case of a TTF-1 pituitary tumor coexisting with a pituitary adenoma.
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Affiliation(s)
- Franco Rubino
- Department of Neurological Surgery, University of Miami, University of Miami Hospital, Miami, Florida, United States
| | - Daniel G. Eichberg
- Department of Neurological Surgery, University of Miami, University of Miami Hospital, Miami, Florida, United States
| | - Ali G. Saad
- Department of Pathology, University of Miami, University of Miami Hospital, Miami, Florida, United States
| | | | - Michael E. Ivan
- Sylvester Comprehensive Cancer Center, Miami, Florida, United States
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Merenzon MA, Patel NV, Morell AA, Marcó Del Pont F, Moll JM, Komotar RJ, Ivan ME. Newly Diagnosed Adult Basal Ganglia Gliomas Treated With Laser Interstitial Thermal Therapy: A Comparative Cohort With Needle Biopsy. Oper Neurosurg (Hagerstown) 2023; 24:383-390. [PMID: 36701559 DOI: 10.1227/ons.0000000000000553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 09/27/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Few cytoreductive surgical tools are available for newly diagnosed basal ganglia gliomas. Current reports showed high associated morbidity and mortality. Given their deep localization, laser interstitial thermal therapy (LITT) is still a rare indication. Moreover, few reports account for which of the available options have better outcomes. OBJECTIVE To retrospectively analyze our experience with LITT and compare its safety, feasibility, and efficacy with needle biopsy for the management of adult basal ganglia gliomas. METHODS Twenty-two patients with gliomas from the midline (e.g. thalamus and lenticular nucleus) managed with either LITT/biopsy or needle biopsy from 2015 to 2021 were included. Records regarding location, diagnosis, Karnofsky Performance Score, length of hospital stay, preoperative lesion and ablation volume, perioperative complications, and data of adjuvant treatment were collected. Overall survival was evaluated with Kaplan-Meier analysis. RESULTS Seven patients had LITT, and 15 underwent biopsy. The overall mean age was 60.9 years (25-82 years). The average tumor volume in the former was 16.99 cm 3 and 17.65 cm 3 in the latter. No postsurgical complications were found in the LITT group, and 1 patient had a postsurgical hemorrhage after biopsy. The mean overall survival was 20.28 ± 9.63 months in the LITT group, which was greater but not statistically significant than in the biopsy group (13.85 ± 4.48 months; P = .78). CONCLUSION Our results show that laser ablation may be both feasible and safe in adult basal ganglia gliomas. Given the lack of safe cytoreductive treatment options, LITT should be considered as a valid choice for these patients.
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Affiliation(s)
- Martín A Merenzon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Nitesh V Patel
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Francisco Marcó Del Pont
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Joshua M Moll
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
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Matichak DP, Levy AS, Vanderveer-Harris N, Chang H, Vallejo F, Schachner B, Shah AH, Komotar RJ, Chakravarthy V, Ivan ME. Trends in Leadership Among Neurosurgical Oncology Fellowships. World Neurosurg 2023:S1878-8750(23)00396-0. [PMID: 36963564 DOI: 10.1016/j.wneu.2023.03.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/26/2023]
Abstract
OBJECTIVE To examine current neurosurgical oncology leadership trends and provide a guide for those interested in obtaining fellowship directorship, we investigated fellowship director (FD) demographic, educational and leadership characteristics. METHODS The American Association of Neurological Surgeons (AANS) Academic Fellowship Directory and Committee on Advanced Subspecialty Training (CAST) websites were reviewed for current U.S. program FDs for which data was collected using online resources and surveys. RESULTS 23 total FDs (20 males and 3 females) were represented whose mean age was 52.4 years (SD = 8.7). Our analysis found 65% of current neurosurgical oncology FD's to be singularly trained in neurosurgical oncology, with 8.7% possessing multiple fellowships and 34.8% possessing additional degrees. Fellowship programs producing the most FDs were University of Texas MD Anderson (4), Memorial Sloan Kettering (3) and University of Miami (2). FDs possessed an average of 148 publications, 6423 citations, and an h-index of 33.9. H-index had a high-positive correlation with age and time from residency graduation, but not duration of FD appointment. Among survey respondents, 91.7% reported membership and 75% reported leadership positions among national academic societies, while 66.7% reported holding journal-editorial positions. The mean age of FD appointment was 46.8 years with a mean time from fellowship completion to FD appointment of 10.0 years. CONCLUSIONS Through the characterization of current leaders in the field, we provide valuable information with regards to training location trends, research productivity goals, career timelines, and target journal/national academic society involvement worth consideration among young trainees when making career decisions and plans.
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Affiliation(s)
- David P Matichak
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA
| | - Adam S Levy
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA.
| | - Nathan Vanderveer-Harris
- Herbert Wertheim College of Medicine at Florida International University, 11200 SW 8(th) St, Miami, FL 33199, USA
| | - Henry Chang
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA
| | - Frederic Vallejo
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA
| | - Benjamin Schachner
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA; Sylvester Cancer Center, University of Miami Health System, 1475 NW 12(th) Ave, Miami, Florida 33136, USA
| | - Vikram Chakravarthy
- Department of Neurological Surgery, The Ohio State University Wexner Medical Center, 410 W 10(th) St, Columbus, OH 43201, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14(th) Terrace, Miami, FL, 33136, USA; Sylvester Cancer Center, University of Miami Health System, 1475 NW 12(th) Ave, Miami, Florida 33136, USA
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Merenzon M, Levy AS, Bhatia S, Eatz T, Morell AA, Daggubati L, Berry K, Eichberg DG, Chandar J, Shah AH, Luther E, Lu VM, Komotar RJ, Ivan ME. Surgical Approaches to Thalamic Gliomas: A Systematic Review. World Neurosurg 2023; 171:25-34. [PMID: 36528315 DOI: 10.1016/j.wneu.2022.12.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Adult thalamic gliomas (ATGs) present a surgical challenge given their depth and proximity to eloquent brain regions. Choosing a surgical approach relies on different clinical variables such as anatomical location and size of the tumor. However, conclusive data regarding how these variables influence the balance between extent of resection and complications are lacking. We aim to systematically review the literature to describe the current surgical outcomes of ATG and to provide tools that may improve the decision-making process. METHODS Literature regarding the surgical management of ATG patients was reviewed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Four databases were queried and a description of clinical characteristics and survival analysis were performed. An individual patient data analysis was conducted when feasible. RESULTS A total of 462 patients were included from 13 studies. The mean age was 39.8 years with a median preoperative Karnofsky performance scale of 70. The lateral approaches were most frequently used (74.9%), followed by the interhemispheric (24.2%). Gross total and subtotal/partial resections were achieved in 81%, and 19% of all cases, respectively. New permanent neurological deficits were observed in 51/433 patients (11.8%). individual patient data was pooled from 5 studies (n = 71). In the multivariate analysis, tumors located within the posterior thalamus had worse median overall survival compared to anterior gliomas (14.5 vs. 27 months, P = 0.003). CONCLUSIONS Surgical resection of ATGs can increase survival but at the risk of operative morbidity. Knowing which factors impact survival may allow neurosurgeons to propose a more evidence-based treatment to their patients.
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Affiliation(s)
- Martín Merenzon
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Adam S Levy
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA.
| | - Shovan Bhatia
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Tiffany Eatz
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Lekhaj Daggubati
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Katherine Berry
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Jay Chandar
- Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Victor M Lu
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA; Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Miller School of Medicine, Miami, Florida, USA; Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
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Elarjani T, Lu VM, Berry KM, Eichberg DG, Ivan ME, Komotar RJ, Luther EM. Commentary: Invention of an Online Interactive Virtual Neurosurgery Simulator With Audiovisual Capture for Tactile Feedback. Oper Neurosurg (Hagerstown) 2023; 24:e232-e233. [PMID: 36701687 DOI: 10.1227/ons.0000000000000568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 10/06/2022] [Indexed: 01/27/2023] Open
Affiliation(s)
- Turki Elarjani
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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Merenzon MA, Bhatia S, Levy A, Eatz T, Morell AA, Daggubati LC, Luther E, Shah AH, Komotar RJ, Ivan ME. Frontal lobe low-grade tumors seizure outcome: a pooled analysis of clinical predictors. Clin Neurol Neurosurg 2023; 226:107600. [PMID: 36709666 DOI: 10.1016/j.clineuro.2023.107600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Seizures present in 50-90 % of cases with low-grade brain tumors. Frontal lobe epilepsy is associated with dismal seizure outcomes compared to temporal lobe epilepsy. Our objective is to conduct a systematic review, report our case series, and perform a pooled analysis of clinical predictors of seizure outcomes in frontal lobe low-grade brain tumors. METHODS Searches of five electronic databases from January 1990 to June 2022 were reviewed following PRISMA guidelines. Individual patient data was extracted from 22 articles that fit the inclusion criteria. A single-surgeon case series from our institution was also retrospectively reviewed and analyzed through a pooled cohort of 127 surgically treated patients with frontal lobe low-grade brain tumors. RESULTS The mean age at surgery was 30.8 years, with 50.4 % of patients diagnosed as oligodendrogliomas. The majority of patients (81.1 %) were seizure-free after surgery (Engel I). On the multivariate analysis, gross total resection (GTR) (OR = 8.77, 95 % CI: 1.99-47.91, p = 0.006) and awake resection (OR = 9.94, 95 % CI: 1.93-87.81, p = 0.015) were associated with seizure-free outcome. A Kaplan-Meier curve showed that the probability of seizure freedom fell to 92.6 % at 3 months, and to 85.5 % at 27.3 months after surgery. CONCLUSION Epilepsy from tumor origin demands a balance between oncological management and epilepsy cure. Our pooled analysis suggests that GTR and awake resections are positive predictive factors for an Engel I at more than 6 months follow-up. To validate these findings, a longer-term follow-up and larger cohorts are needed.
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Affiliation(s)
- Martín A Merenzon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Shovan Bhatia
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Adam Levy
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Tiffany Eatz
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Alexis A Morell
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Lekhaj C Daggubati
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
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King HJ, Luther E, Morell AA, Ivan M, Komotar RJ. Management of a Growth Hormone-Secreting Pituitary Macroadenoma Associated With Idiopathic Intracranial Hypertension and an Empty Sella. Cureus 2023; 15:e34471. [PMID: 36874650 PMCID: PMC9982051 DOI: 10.7759/cureus.34471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2023] [Indexed: 02/04/2023] Open
Abstract
Idiopathic intracranial hypertension (IIH) is a -condition associated with elevated intracranial pressure (ICP) and frequently presents with headaches, papilledema, and visual loss. Rarely, IIH has been reported in association with acromegaly. Although removal of the tumor may reverse this process, elevated ICP, especially in the setting of an otherwise empty sella, may result in a cerebrospinal fluid (CSF) leak that is exceedingly difficult to manage. We present the first case of a patient with a functional pituitary adenoma causing acromegaly associated with IIH and an otherwise empty sella and discuss our management paradigm for this rare condition.
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Affiliation(s)
- Hunter J King
- Neurosurgery, Drexel University College of Medicine, Philadelphia, USA
| | - Evan Luther
- Neurological Surgery, University of Miami Miller School of Medicine, Miami, USA
| | - Alexis A Morell
- Neurological Surgery, University of Miami Miller School of Medicine, Miami, USA
| | - Michael Ivan
- Neurological Surgery, University of Miami Miller School of Medicine, Miami, USA
| | - Ricardo J Komotar
- Neurological Surgery, University of Miami Miller School of Medicine, Miami, USA
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Di L, Shah AH, Mahavadi A, Eichberg DG, Reddy R, Sanjurjo AD, Morell AA, Lu VM, Ampie L, Luther EM, Komotar RJ, Ivan ME. Radical supramaximal resection for newly diagnosed left-sided eloquent glioblastoma: safety and improved survival over gross-total resection. J Neurosurg 2023; 138:62-69. [PMID: 35623362 DOI: 10.3171/2022.3.jns212399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/09/2022] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Supramaximal resection (SMR) has arisen as a possible surrogate to gross-total resection (GTR) to improve survival in newly diagnosed glioblastoma (nGBM). However, SMR has traditionally been limited to noneloquent regions and its feasibility in eloquent nGBM remains unclear. The authors conducted a retrospective multivariate propensity-matched analysis comparing survival outcomes for patients with left-sided eloquent nGBM undergoing SMR versus GTR. METHODS A retrospective review was performed of all patients at our institution who underwent SMR or GTR of a left-sided eloquent nGBM during the period from 2011 to 2020. All patients underwent some form of preoperative or intraoperative functional mapping and underwent awake or asleep craniotomy (craniotomy under general anesthesia); however, awake craniotomy was performed in the majority of patients and the focus of the study was SMR achieved via awake craniotomy and functional mapping with lesionectomy and additional peritumoral fluid attenuated inversion recovery (FLAIR) resection. Propensity scores were generated controlling for age, tumor location, and preoperative Karnofsky Performance Status (KPS) score with the nearest-neighbor algorithm. RESULTS A total of 102 patients (48 SMR, 54 GTR) were included in this study. The median overall survival (OS) and progression-free survival (PFS) for patients receiving SMR were 22.9 and 5.1 months, respectively. Propensity matching resulted in a final cohort of 27 SMR versus 27 GTR patients. SMR conferred improved OS (21.55 vs 15.49 months, p = 0.0098) and PFS (4.51 vs 3.59 months, p = 0.041) compared to GTR. There was no significant difference in postoperative complication rates or KPS score in SMR compared with GTR patients (p = 0.236 and p = 0.736, respectively). In patients receiving SMR, improved OS and PFS showed a dose-dependent relationship with extent of FLAIR resection (EOFR) on log-rank test for trend (p < 0.001). CONCLUSIONS SMR by means of awake craniotomy with functional mapping for left-sided eloquent nGBM is safe and confers a survival benefit compared to GTR obtained with lesionectomy alone while preserving postoperative neurological integrity. When tolerated, greater EOFR with SMR may be associated with improved survival.
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Affiliation(s)
- Long Di
- 1Department of Neurosurgery and
| | | | | | | | | | | | | | | | - Leonel Ampie
- 3Department of Neurosurgery, University of Virginia School of Medicine, Charlottesville, Virginia
| | | | - Ricardo J Komotar
- 1Department of Neurosurgery and.,2Sylvestor Comprehensive Cancer Center, University of Miami School of Medicine, Miami, Florida; and
| | - Michael E Ivan
- 1Department of Neurosurgery and.,2Sylvestor Comprehensive Cancer Center, University of Miami School of Medicine, Miami, Florida; and
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Ghiam MK, Ali IA, Dable CL, Ayala AR, Kargi AY, Komotar RJ, Levine CG, Sargi Z. Multidisciplinary Postoperative Care Pathway to Reduce Readmissions following Endoscopic Transsphenoidal Pituitary Surgery: Improving Quality of Patient Care. J Neurol Surg B Skull Base 2022; 83:626-634. [PMID: 36393882 PMCID: PMC9653288 DOI: 10.1055/a-1920-0758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 07/29/2022] [Indexed: 10/16/2022] Open
Abstract
Background Thirty-day unplanned readmission following endoscopic transsphenoidal pituitary surgery (ETPS) occurs in up to 14% of patients. Delayed hyponatremia is one of the most common causes, accounting for 30% of readmissions and often occurs within 1 week of surgery. The authors' prior retrospective review identified endocrinology follow-up as protective factor. Objectives Implementation of a multidisciplinary postoperative care (POC) pathway: (1) to reduce 30-day hospital readmissions following ETPS and (2) improve inpatient and outpatient coordination of care with endocrinologist. Methods This study is a single institution temporal cohort study of patients prior to (control cohort) and after implementation of the POC pathway (intervention cohort). The POC pathway utilized postdischarge 1 to 1.5 L/d fluid restriction, postoperative days 5 to 7 serum sodium, and endocrinology follow-up within 1 week of discharge to stratify patients into tiered hyponatremia regimens. Results A total of 542 patients were included in the study, 409 (75%) in the control cohort and 133 (25%) in the intervention cohort. All-cause readmission was significantly reduced following implementation of the POC pathway (14 vs. 6%, p = 0.015). Coordination with endocrinologist significantly increased in the inpatient (96 vs. 83%, p < 0.001) and outpatient (77 vs. 68%, p = 0.042) settings. Patients who were not in the POC pathway had the highest risk of readmission (odds ratio: 2.5; 95% confidence interval: 1.1-5.5). Conclusion A multidisciplinary POC pathway incorporating endocrinologist in conjunction with postdischarge weight-based fluid restriction and postoperative serum sodium levels can safely be used to reduce 30-day readmissions following ETPS.
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Affiliation(s)
- Michael K. Ghiam
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Ibrahim A. Ali
- University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Cortney L. Dable
- University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Alejandro R. Ayala
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Atil Y. Kargi
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Ricardo J. Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Corinna G. Levine
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Zoukaa Sargi
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, Florida, United States
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Levy AS, Sakellakis A, Luther E, Morell AA, Rosenberg A, Saad AG, Ivan M, Komotar RJ. Concurrent intraventricular intracranial myxoid mesenchymal tumor and ependymoma in a long-term Ewing sarcoma survivor. Neuropathology 2022; 42:534-539. [PMID: 35734886 DOI: 10.1111/neup.12844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 06/01/2022] [Accepted: 06/05/2022] [Indexed: 12/15/2022]
Abstract
Intracranial myxoid mesenchymal tumor, FET::CREB fusion positive is a rare, recently described central nervous system neoplasm. It is characterized by EWSR1::CREB family transcription factor fusion, typically arises in children and adolescents, and is locally aggressive even after gross total resection. Currently, there are little data available to guide management and gauge long-term prognosis. Furthermore, there have been no reports of these lesions occurring simultaneously with other intracranial neoplasms or in patients with a history of malignancy. Here we describe the first case of a very unusual patient with intracranial myxoid mesenchymal tumor of the right lateral ventricle with a concurrent fourth ventricular ependymoma who had a remote history of Ewing sarcoma of the right fibula.
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Affiliation(s)
- Adam S Levy
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ana Sakellakis
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Evan Luther
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Alexis A Morell
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Andrew Rosenberg
- Department of Pathology, University of Miami Health System, Miami, Florida, USA
| | - Ali G Saad
- Department of Pathology, University of Miami Health System, Miami, Florida, USA
| | - Michael Ivan
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA.,Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA.,Sylvester Cancer Center, University of Miami Health System, Miami, Florida, USA
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Rich BJ, Kwon D, Soni YS, Bell JB, John D, Azzam G, Mellon EA, Yechieli R, Meshman J, Abramowitz MC, Marques J, Benjamin CG, Komotar RJ, Ivan M, Diwanji T. Survival and Yield of Surveillance Imaging in Long-Term Survivors of Brain Metastasis Treated with Stereotactic Radiosurgery. World Neurosurg 2022; 167:e738-e746. [PMID: 36028107 DOI: 10.1016/j.wneu.2022.08.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 10/31/2022]
Abstract
OBJECTIVES The optimal frequency of surveillance brain magnetic resonance imaging (MRI) in long-term survivors with brain metastases after stereotactic radiosurgery (SRS) is unknown. Our aim was to identify the optimal frequency of surveillance imaging in long-term survivors with brain metastases after SRS. METHODS Eligible patients were identified from a cohort treated with SRS definitively or postoperatively at our institution from 2014 to 2019 with no central nervous system (CNS) failure within 12 months from SRS. Time to CNS disease failure diagnosis and cost per patient were estimated using theoretical MRI schedules of 2, 3, 4, and 6 months starting 1 year after SRS until CNS failure. Time to diagnosis was calculated from the date of CNS progression to the theoretical imaging date on each schedule. RESULTS This cohort included 55 patients (median follow-up from SRS: 2.48 years). During the study period, 20.0% had CNS disease failure (median: 2.26 years from SRS treatment). In this cohort, a theoretical 2-month, 3-month, 4-month, and 6-month MRI brain surveillance schedule produced a respective estimated time to diagnosis of CNS disease failure of 1.11, 1.74, 1.65, and 3.65 months. The cost of expedited diagnosis for the cohort (dollars/month) for each theoretical imaging schedule compared with a 6-month surveillance schedule was $6600 for a 2-month protocol, $4496 for a 3-month protocol, and $2180 for a 4-month protocol. CONCLUSIONS Based on cost-benefit, a 4-month MRI brain schedule should be considered in patients with metastatic disease to the brain treated definitively or postoperatively with SRS without evidence of CNS recurrence at 1 year.
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Affiliation(s)
- Benjamin J Rich
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA.
| | - Deukwoo Kwon
- Department of Public Health Sciences, Biostatistics and Bioinformatics Shared Resource, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Yash S Soni
- University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jonathan B Bell
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Danny John
- University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Gregory Azzam
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Eric A Mellon
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Raphael Yechieli
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jessica Meshman
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Matthew C Abramowitz
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Joao Marques
- University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Carolina G Benjamin
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael Ivan
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Tejan Diwanji
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
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De Stefano FA, Morell A, Marks K, Fernandez S, Smith G, Mayo T, Merenzon M, Shah AH, Eichberg DG, Luther E, Ivan ME, Komotar RJ. Brain Metastasis from Pancreatic Cancer: Our Experience and Systematic Review. World Neurosurg 2022; 166:e590-e598. [PMID: 35863644 DOI: 10.1016/j.wneu.2022.07.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/13/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To systematically review existing literature on the neurosurgical management and outcomes of brain metastasis from pancreatic cancer in comparison with our institutional experience of this patient cohort. METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a systematic literature review was performed using PubMed, Ovid Embase, Scopus, and Web of Science databases from date of database inception to March 2022. Studies were selected based on predetermined inclusion and exclusion criteria. Simultaneously, a retrospective analysis was conducted of patients who underwent neurosurgical evaluation and treatment for intracranial metastatic lesions from pancreatic origin at a single institution. RESULTS The original literature search yielded 292 articles, of which 17 studies comprising 23 patients with brain metastases of pancreatic origin were ultimately selected. Median overall survival from primary diagnosis of pancreatic cancer was 22 months (interquartile range: 3-84) and 3 months (interquartile range: 1-36) after diagnosis of brain metastasis. In our institutional cohort, 4 patients were identified with a median overall survival of 30.5 months (interquartile range: 2-108). Our institutional cohort experienced a prolonged median overall survival (3 months vs. 30.5 months, P = 0.03) compared with the literature. CONCLUSIONS Brain metastasis from pancreatic cancer is rare and associated with a fatal outcome. However, based on the data presented in this review, patient-specific and treatment-related factors could signal better prognosis. Further studies are needed to elucidate multimodal therapy and survival to suggest a more personalized decision-making process.
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Affiliation(s)
- Frank A De Stefano
- Department of Neurological Surgery, University of Kansas, Kansas City, Kansas, USA.
| | - Alexis Morell
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Katya Marks
- School of Medicine, University of Oxford, Oxford, United Kingdom
| | - Sophia Fernandez
- School of Medicine, Florida International University, Miami, Florida, USA
| | - Grace Smith
- School of Medicine, Morehouse College, Atlanta, Georgia, USA
| | - Timothy Mayo
- Department of General Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Martin Merenzon
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Evan Luther
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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Morell AA, Eichberg DG, Shah AH, Luther E, Lu VM, Kader M, Higgins DMO, Merenzon M, Patel NV, Komotar RJ, Ivan ME. Using Machine Learning to Evaluate Large-scale Brain Networks Patients with Brain Tumors: Traditional and non-Traditional eloquent areas. Neurooncol Adv 2022; 4:vdac142. [PMID: 36299797 PMCID: PMC9586213 DOI: 10.1093/noajnl/vdac142] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background Large-scale brain networks and higher cognitive functions are frequently altered in neuro-oncology patients, but comprehensive non-invasive brain mapping is difficult to achieve in the clinical setting. The objective of our study is to evaluate traditional and non-traditional eloquent areas in brain tumor patients using a machine-learning platform. Methods We retrospectively included patients who underwent surgery for brain tumor resection at our Institution. Preoperative MRI with T1-weighted and DTI sequences were uploaded into the Quicktome platform. We categorized the integrity of nine large-scale brain networks: language, sensorimotor, visual, ventral attention, central executive, default mode, dorsal attention, salience and limbic. Network integrity was correlated with preoperative clinical data. Results One-hundred patients were included in the study. The most affected network was the central executive network (49%), followed by the default mode network (43%) and dorsal attention network (32%). Patients with preoperative deficits showed a significantly higher number of altered networks before the surgery (3.42 vs 2.19, P < .001), compared to patients without deficits. Furthermore, we found that patients without neurologic deficits had an average 2.19 networks affected and 1.51 networks at-risk, with most of them being related to non-traditional eloquent areas (P < .001). Conclusion Our results show that large-scale brain networks are frequently affected in patients with brain tumors, even when presenting without evident neurologic deficits. In our study, the most commonly affected brain networks were related to non-traditional eloquent areas. Integrating non-invasive brain mapping machine-learning techniques into the clinical setting may help elucidate how to preserve higher-order cognitive functions associated with those networks.
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Affiliation(s)
- Alexis A Morell
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Daniel G Eichberg
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Ashish H Shah
- Sylvester Cancer Center, University of Miami Health System, Miami , Florida, USA
| | - Evan Luther
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Victor M Lu
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Michael Kader
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Dominique M O Higgins
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Martin Merenzon
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Nitesh V Patel
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
| | - Michael E Ivan
- Department of Neurosurgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace , Miami, FL, 33136, USA
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Danish B, Costello MC, Patel NV, Higgins DMO, Komotar RJ, Ivan ME. Commentary: Dejerine Syndrome Variant Due to Medullary Perforating Artery Ischemia During Foramen Magnum Meningioma Resection: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2022; 23:e205-e206. [PMID: 35972118 DOI: 10.1227/ons.0000000000000336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Affiliation(s)
- Burhanuddin Danish
- Department of Neurosurgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
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Costello MC, Danish B, Patel NV, Kader M, Komotar RJ, Ivan ME. Commentary: Extended Transcondylar Approach With C1 Lateral Mass Resection for the Removal of a Calcified Ventral "Spinocranial" Meningioma: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2022; 23:e193-e194. [PMID: 35972112 DOI: 10.1227/ons.0000000000000330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Affiliation(s)
- Meredith C Costello
- Department of Neurosurgery, University of Miami, Miller School of Medicine, Miami, Florida, USA
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Morell AA, Patel NV, Eatz TA, Levy AS, Eichberg DG, Shah AH, Luther E, Lu VM, Kader M, Higgins DMO, Ivan ME, Komotar RJ. Safety of the utilization of telemedicine for brain tumor neurosurgery follow-up. Neurooncol Pract 2022; 10:97-103. [PMID: 36650891 PMCID: PMC9384682 DOI: 10.1093/nop/npac060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background There is a need to evaluate the outcomes of patients who underwent brain tumor surgery with subsequent telemedicine or in-person follow-up during the COVID-19 pandemic. Methods We retrospectively included all patients who underwent surgery for brain tumor resection by a single neurosurgeon at our Institution from the beginning of the COVID-19 pandemic restrictions (March 2020) to August 2021. Outcomes were assessed by stratifying the patients using their preference for follow-up method (telemedicine or in-person). Results Three-hundred and eighteen (318) brain tumor patients who were included. The follow-up method of choice was telemedicine (TM) in 185 patients (58.17%), and in-person (IP) consults in 133 patients. We found that patients followed by TM lived significantly farther, with a median of 36.34 miles, compared to a median of 22.23 miles in the IP cohort (P = .0025). We found no statistical difference between the TM and the IP group, when comparing visits to the emergency department (ED) within 30 days after surgery (7.3% vs 6.01%, P = .72). Readmission rates, wound infections, and 30-day mortality were similar in both cohorts. These findings were also consistent after matching cohorts using a propensity score. The percentage of telemedicine follow-up consults was higher in the first semester (73.17%) of the COVID-19 pandemic, compared to the second (46.21%), and third semesters (47.86%). Conclusions Telehealth follow-up alternatives may be safely offered to patients after brain tumor surgery, thereby reducing patient burden in those with longer distances to the hospital or special situations as the COVID-19 pandemic.
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Affiliation(s)
- Alexis A Morell
- Corresponding Author: Alexis A. Morell, MD, Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 1095 NW 14th Terrace (D4-6), Miami, FL 33136, USA ()
| | - Nitesh V Patel
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Tiffany A Eatz
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Adam S Levy
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Daniel G Eichberg
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Evan Luther
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Victor M Lu
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael Kader
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Dominique M O Higgins
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurosurgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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