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Rohan Ramakrishna, Wei-Chun Hsu, Jialin Mao, Art Sedrakyan
OBJECTIVE: Surgeon volume has been previously shown to impact patient outcomes. However, data related to neuro-oncologic surgery is limited and does not include neurologic morbidities as an outcomes measure. In this study, we aimed to determine if 5-year surgeon cumulative and annual volumes predict early postoperative outcomes in patients following brain tumor surgery. METHODS: A population-based cohort of patients (n=10, 258) undergoing brain tumor resection between 2005 and 2014 were included for study utilizing the New York Statewide Planning and Research Cooperation System...
March 7, 2018: World Neurosurgery
Anne-Laure Lemaitre, Gilles Lafargue, Hugues Duffau, Guillaume Herbet
A growing body of evidence suggests that individuals with pronounced schizotypal traits also display particular neurophysiological and morphological features - notably with regard to left frontotemporal connectivity. However, the studies published to date have focused on subclinical subjects and psychiatric patients, rather than brain-damaged patients. Here, we used the French version of the Schizotypal Personality Questionnaire to assess schizotypal traits in a sample of 97 patients having undergone surgical resection of a diffuse low-grade glioma...
February 27, 2018: Schizophrenia Research
Anmol Pandey, Bhaskar Thakur, Florence Hogg, Christian Brogna, Jamie Logan, Roopen Arya, Richard Gullan, Ranjeev Bhangoo, Keyoumars Ashkan
OBJECTIVE Venous thromboembolism (VTE) is a major cause of morbidity in patients undergoing neurosurgical intervention. The authors postulate that the introduction of a routine preoperative deep vein thrombosis (DVT) screening protocol for patients undergoing neurosurgical intervention for brain tumors would result in a more effective diagnosis of DVT in this high-risk subgroup, and subsequent appropriate management of the condition would reduce pulmonary embolism (PE) rates and improve patient outcomes. METHODS The authors conducted a prospective study of 115 adult patients who were undergoing surgical intervention for a brain tumor...
March 2, 2018: Journal of Neurosurgery
Maya Harary, David J Segar, Kevin T Huang, Ian J Tafel, Pablo A Valdes, G Rees Cosgrove
Focused ultrasound (FUS) has been under investigation for neurosurgical applications since the 1940s. Early experiments demonstrated ultrasound as an effective tool for the creation of intracranial lesions; however, they were limited by the need for craniotomy to avoid trajectory damage and wave distortion by the skull, and they also lacked effective techniques for monitoring. Since then, the development and hemispheric distribution of phased arrays has resolved the issue of the skull and allowed for a completely transcranial procedure...
February 2018: Neurosurgical Focus
İlhan Elmaci, Ebru Emekli Alturfan, Salih Cengiz, Aysel Ozpinar, Meric A Altinoz
Cardiac glycosides induce a strong immunological cancer cell cytotoxicity, in which the released intracellular components of dying tumor cells (eg. calreticulin, HMGB1 and ATP) stimulate immunity and help in eradicating cancer. Among the cardiac glycosides, oleandrin is an inhibitor of P-glycoprotein expression and exerts excellent penetration through the blood-brain barrier which also harbours neuroprotective and anti-glioma efficacies. Cardiac glycosides also exert neuroprotective activities, one explanation for such an action is the metabolic arrest as a defense strategy against hypoxia...
January 31, 2018: International Journal of Neuroscience
Eric Suero Molina, Stephanie Schipmann, Isabelle Mueller, Johannes Wölfer, Christian Ewelt, Matthias Maas, Benjamin Brokinkel, Walter Stummer
OBJECTIVE Awake craniotomies have become a feasible tool over time to treat brain tumors located in eloquent regions. Different techniques have been applied in neurooncology centers. Both "asleep-awake-asleep" (asleep) and "conscious sedation" were used subsequently at the authors' neurosurgical department. Since 2013, the authors have only performed conscious sedation surgeries, predominantly using the α2-receptor agonist dexmedetomidine as the anesthetic drug. The aim of this study was to compare both mentioned techniques and evaluate the clinical use of dexmedetomidine in the setting of awake craniotomies for glioma surgery...
January 12, 2018: Journal of Neurosurgery
Supriya Gujjar Suresh, Arathi Srinivasan, Julius Xavier Scott, Santosh Mohan Rao, Balasubramaniam Chidambaram, Sanjay Chandrasekar
Context: Tumors of the central nervous system (CNS) constitute the second most common pediatric cancers. Unlike leukemia, management of CNS tumors requires a good multidisciplinary team. Higher rates of treatment abandonment are documented in view of complexity of the treatment with long duration, involving neurosurgery, radiation, chemotherapy, and high cost of treatment. Morbidity associated with CNS tumors may be significant in terms of physical deficits as well as neuropsychological and neuroendocrine sequelae...
July 2017: Journal of Pediatric Neurosciences
Aaron Y Mochizuki, Isaura M Frost, Melina B Mastrodimos, Ashley S Plant, Anthony C Wang, Theodore B Moore, Robert M Prins, Paul S Weiss, Steven J Jonas
Central nervous system tumors are the leading cause of cancer related death in children. Despite much progress in the field of pediatric neurooncology, modern combination treatment regimens often result in significant late effects, such as neurocognitive deficits, endocrine dysfunction, secondary malignancies, and a host of other chronic health problems. Precision medicine strategies applied to pediatric neurooncology target specific characteristics of individual patients' tumors to achieve maximal killing of neoplastic cells while minimizing unwanted adverse effects...
January 17, 2018: ACS Chemical Neuroscience
Karl-Josef Langen, Antje Willuweit
No abstract text is available yet for this article.
December 2017: European Journal of Nuclear Medicine and Molecular Imaging
David T W Jones, Mark W Kieran, Eric Bouffet, Sanda Alexandrescu, Pratiti Bandopadhayay, Miriam Bornhorst, David Ellison, Jason Fangusaro, Michael J Fisher, Nicholas Foreman, Maryam Fouladi, Darren Hargrave, Cynthia Hawkins, Nada Jabado, Maura Massimino, Sabine Mueller, Giorgio Perilongo, Antoinette Y N Schouten van Meeteren, Uri Tabori, Katherine Warren, Angela J Waanders, David Walker, William Weiss, Olaf Witt, Karen Wright, Yuan Zhu, Daniel C Bowers, Stefan M Pfister, Roger J Packer
Despite the fact that they are not typically life-threatening, low-grade gliomas (LGGs) remain a significant clinical challenge in pediatric neuro-oncology due to comorbidities associated with these tumors and/or their treatments, and their propensity to multiply recurs. LGGs, in total the most common brain tumors arising in childhood, can often become a chronic problem requiring decades of management. The Second International Consensus Conference on Pediatric Low-Grade Gliomas held in Padua, Italy in 2016 was convened in an attempt to advance the pace of translating biological discoveries on LGGs into meaningful clinical benefit...
January 22, 2018: Neuro-oncology
Enrique Orrego, Sandro Casavilca, Pamela Garcia-Corrochano, Sugey Rojas-Meza, Miluska Castillo, Carlos A Castaneda
We report four cases of glioblastoma in the pineal region. The patients presented a severe headache and vomiting. Brain imaging showed a heterogeneously enhanced tumor in the pineal region with obstructive hydrocephalus. Case 3 developed a subependymal dissemination. The patient went to ventricular-peritoneal shunt and subtotal or total resection and radiotherapy with/without chemotherapy. Cases 1 and 2 received radiation and died 8 and 11 later months. Cases 3 and 4 completed radiotherapy and chemotherapy, and survived 28 and 31 months after the initial diagnosis...
October 2017: CNS Oncology
Lisbeth Marner, Otto M Henriksen, Michael Lundemann, Vibeke Andrée Larsen, Ian Law
PURPOSE: Magnetic resonance imaging (MRI) plays a key role in neurooncology, i.e., for diagnosis, treatment evaluation and detection of recurrence. However, standard MRI cannot always separate malignant tissue from other pathologies or treatment-induced changes. Advanced MRI techniques such as diffusion-weighted imaging, perfusion imaging and spectroscopy show promising results in discriminating malignant from benign lesions. Further, supplemental imaging with amino acid positron emission tomography (PET) has been shown to increase accuracy significantly and is used routinely at an increasing number of sites...
2017: Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging
Jan Coburger, Mirjam Renovanz, Oliver Ganslandt, Florian Ringel, Christian Rainer Wirtz, Javier Segovia von Riehm
INTRODUCTION: Treatment of glioblastoma(GB) patients amenable only for a subtotal resection(STR) is controversial. Since outcome of patients is affected by surgical management, our aim was to assess surgical decision making and resulting outcome in patients with highly eloquent GBs. PATIENTS AND METHODS: We retrospectively assessed GB patients with intended sub-total resection (STR) or stereotactic biopsy (STX) of 3 neurooncological centers operated between 2008 and 2013...
November 2017: Clinical Neurology and Neurosurgery
Marc Dahlmanns, Eduard Yakubov, Daishi Chen, Tina Sehm, Manfred Rauh, Nicolai Savaskan, Jana Katharina Wrosch
In the search for new potential chemotherapeutics, the compounds' toxicity to healthy cells is an important factor. The brain with its functional units, the neurons, is especially endangered during the radio- and chemotherapeutic treatment of brain tumors. The effect of the potential compounds not only on neuronal survival but also neuronal function needs to be taken into account. Therefore, in this study we aimed to comprehend the biological effects of chemotherapeutic xCT inhibition on healthy neuronal cells with our synaptic optogenetic function analysis tool (SOFA)...
2017: Cell Death Discovery
Giampiero Giovacchini, Elisabetta Giovannini, Mattia Riondato, Andrea Ciarmiello
BACKGROUND AND OBJECTIVE: In the last decade, an increasing number of positron emission tomography / magnetic resonance (PET/MR) tomographs were installed and many clinical studies were performed in the neurological field. METHODS: Although PET/MR has many favorable properties to support the application in brain imaging, attenuation correction, and therefore accurate quantification, is a problem that still requires optimal solution. RESULTS: In this review we have summarized the three main methods that are currently used to correct attenuation in PET/MR, namely atlas- or template-based methods, segmentation-based methods, and reconstruction-based methods...
November 10, 2017: Current Radiopharmaceuticals
Maayken Elizabeth Louise van den Berg, Juan M Castellote, Jose Ignacio Mayordomo, Ignacio Mahillo-Fernandez, Jesus de Pedro-Cuesta
PURPOSE: Understanding the presentation of spinal cord injury (SCI) due to tumours considering population distribution and temporal trends is key to managing SCI health services. This study quantified incidence rates, function scores, and trends of SCI due to tumour or metastasis over an 18-year time period in a defined region in Spain. METHODS: A retrospective cohort study included in-and outpatients with nontraumatic SCI due to tumour or metastasis admitted to a metropolitan hospital in Spain between 1991 and 2008...
2017: BioMed Research International
Brandon A Miller, Afshin Salehi, David D Limbrick, Matthew D Smyth
OBJECTIVE The ROSA device is a robotic stereotactic arm that uses a laser system to register the patient's head or spine with MR or CT images. In this study, the authors analyze their experience with this system in pediatric neurosurgical applications and present selected cases that exemplify the usefulness of this system. METHODS The authors reviewed all cases that utilized the ROSA system at their institution. Patient demographics, pathology, complications, electrode placement, laser ablation, and biopsy accuracy were analyzed...
October 2017: Journal of Neurosurgery. Pediatrics
Rosanda Illic, Teresa Somma, Dragan Savic, Federico Frio, Mihailo Milicevic, Domenico Solari, Marina Nikitovic, Slobodan Lavrnic, Savo Raicevic, Snezana Milosevic, Luigi Maria Cavallo, Paolo Cappabianca, Danica Grujicic
BACKGROUND: Current treatment protocol for glioblastoma multiforme (GBM) is based on maximal safe resection followed by the Stupp protocol. In Serbia, temozolomide was introduced as adjuvant therapy in 2011. The aims of this study were to confirm the safety and efficacy on overall and progression-free survival of the Stupp protocol and evaluate the influence of prognostic factors in one of the largest series of patients with GBM treated over a 2-year period. METHODS: Between January 2010 and December 2012, 110 patients with newly diagnosed GBM underwent surgical removal at the Neurooncology Department of the Clinic Center of Serbia...
August 2017: World Neurosurgery
H Duffau
BACKGROUND AND PURPOSE: The historical approach in neurooncology is used to mainly investigate the tumor, with very few considerations regarding the brain itself. Nonetheless, to select the best personalized therapeutic management for each patient with a diffuse glioma, i.e. to optimize the "onco-functional balance", the brain reaction induced by glioma growth and migration should be studied. Indeed, due to strong interactions between the glioma and the brain, cerebral adaptive phenomena often occur in order to maintain neurological and cognitive functions, as well as to compensate glioma spreading...
May 15, 2017: Neuro-Chirurgie
Domenico Aquino, Andrea Gioppo, Gaetano Finocchiaro, Maria Grazia Bruzzone, Valeria Cuccarini
Pseudophenomena, that is, imaging alterations due to therapy rather than tumor evolution, have an important impact on the management of glioma patients and the results of clinical trials. RANO (response assessment in neurooncology) criteria, including conventional MRI (cMRI), addressed the issues of pseudoprogression after radiotherapy and concomitant chemotherapy and pseudoresponse during antiangiogenic therapy of glioblastomas (GBM) and other gliomas. The development of cancer immunotherapy forced the identification of further relevant response criteria, summarized by the iRANO working group in 2015...
2017: Journal of Immunology Research
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