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Brain tumor surgery

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https://www.readbyqxmd.com/read/28645214/sodium-fluorescein-facilitates-guided-sampling-of-diagnostic-tumor-tissue-in-nonenhancing-gliomas
#1
Stephen G Bowden, Justin A Neira, Brian J A Gill, Timothy H Ung, Zachary K Englander, George Zanazzi, Peter D Chang, Jorge Samanamud, Jack Grinband, Sameer A Sheth, Guy M McKhann, Michael B Sisti, Peter Canoll, Randy S D'Amico, Jeffrey N Bruce
BACKGROUND: Accurate tissue sampling in nonenhancing (NE) gliomas is a unique surgical challenge due to their intratumoral histological heterogeneity and absence of contrast enhancement as a guide for intraoperative stereotactic guidance. Instead, T2/fluid-attenuated inversion-recovery (FLAIR) hyperintensity on MRI is commonly used as an imaging surrogate for pathological tissue, but sampling from this region can yield nondiagnostic or underdiagnostic brain tissue. Sodium fluorescein is an intraoperative fluorescent dye that has a high predictive value for tumor identification in areas of contrast enhancement and NE in glioblastomas...
June 21, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28637947/neurosurgical-virtual-reality-simulation-for-brain-tumor-using-high-definition-computer-graphics-a-review-of-the-literature
#2
Taichi Kin, Hirofumi Nakatomi, Naoyuki Shono, Seiji Nomura, Toki Saito, Hiroshi Oyama, Nobuhito Saito
Simulation and planning of surgery using a virtual reality model is becoming common with advances in computer technology. In this study, we conducted a literature search to find trends in virtual simulation of surgery for brain tumors. A MEDLINE search for "neurosurgery AND (simulation OR virtual reality)" retrieved a total of 1,298 articles published in the past 10 years. After eliminating studies designed solely for education and training purposes, 28 articles about the clinical application remained. The finding that the vast majority of the articles were about education and training rather than clinical applications suggests that several issues need be addressed for clinical application of surgical simulation...
June 22, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28634316/-pre-and-intra-operative-supporting-technology-for-brain-tumors-8-microsurgery-and-endoscopic-surgery-for-deep-seated-brain-tumor
#3
Yoshiki Arakawa
No abstract text is available yet for this article.
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28634311/-bevacizumab-related-hyperintense-lesions-on-diffusion-weighted-imaging-at-different-locations-in-a-patient-with-malignant-glioma
#4
Shinya Oshiro, Naoki Wakuta, Shinichi Kawai, Koichi Miki, Yutaka Shigemori
We report the case of a 60-year-old man who first presented with transient difficulty of word recall. Subsequent MRI revealed an invasive brain tumor in the left frontal lobe. The patient underwent open biopsy, and diffuse astrocytoma(WHO grade II)was diagnosed. However, the malignant potential of this tumor was not particularly low because of a few enhancement on preoperative evaluation, and radiation therapy was initially performed. Four months after ending irradiation, temozolomide treatment was introduced for tumor regrowth...
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28629376/radiation-therapy-for-older-patients-with-brain-tumors
#5
REVIEW
Giuseppe Minniti, Andrea Riccardo Filippi, Mattia Falchetto Osti, Umberto Ricardi
The incidence of brain tumors in the elderly population has increased over the last few decades. Current treatment includes surgery, radiotherapy and chemotherapy, but the optimal management of older patients with brain tumors remains a matter of debate, since aggressive radiation treatments in this population may be associated with high risks of neurological toxicity and deterioration of quality of life. For such patients, a careful clinical status assessment is mandatory both for clinical decision making and for designing randomized trials to adequately evaluate the optimal combination of radiotherapy and chemotherapy...
June 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28627598/curcumin-exerts-its-tumor-suppressive-function-via-inhibition-of-nedd4-oncoprotein-in-glioma-cancer-cells
#6
Xue Wang, Jiaojiao Deng, Jinxia Yuan, Xin Tang, Yuelong Wang, Haifeng Chen, Yi Liu, Liangxue Zhou
Glioblastoma is the most common brain cancer in adults. It represents one of the top ten malignant tumors with an average survival time of nine months despite treatments with surgery, radiotherapy and chemotherapy. Curcumin is a phytochemical turmeric isolated from root of the Curcuma longa plant. Accumulating evidence have proved that curcumin targets numerous cancer signaling pathways. The E3 ubiquitin ligase NEDD4, neural precursor cell expressed developmentally downregulated protein 4, is frequently overexpressed in various cancers...
June 8, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28627088/astrogliosis-and-impaired-aquaporin-4-and-dystrophin-systems-in-idiopathic-normal-pressure-hydrocephalus
#7
Per Kristian Eide, Hans-Arne Hansson
AIMS: Idiopathic normal pressure hydrocephalus (iNPH) is one subtype of dementia that may improve following drainage of cerebrospinal fluid (CSF). This prospective observational study explored whether expression of the water channel aquaporin-4 (AQP4) and the anchoring molecule dystrophin 71 (Dp71) are altered at astrocytic perivascular endfeet and in adjacent neuropil of iNPH patient. Observations were related to measurements of pulsatile and static intracranial pressure (ICP). METHODS: The study included iNPH patients undergoing overnight monitoring of the pulsatile/static ICP, in whom a biopsy was taken from the frontal cerebral cortex during placement of the ICP sensor...
June 19, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28624562/impact-of-gradient-number-and-voxel-size-on-dti-tractography-for-resective-brain-surgery
#8
Friso W A Hoefnagels, Philip C de Witt Hamer, Petra J W Pouwels, Frederik Barkhof, W Peter Vandertop
OBJECTIVE: To explore quantitatively and qualitatively how the number of gradient directions (NGD) and spatial resolution (SR) affect DTI-tractography in patients planned for brain tumor surgery, using routine clinical MR-imaging protocols. METHODS: Of 67 patients with intracerebral lesions who had two different DTI-scans, three DTI-series were reconstructed to compare the effects of NGD and SR. Tractographies for four clinically relevant tracts (corticospinal tract, superior longitudinal fasciculus, optic radiation and inferior fronto-occipital fasciculus) were constructed with a probabilistic tracking algorithm and automated ROI-placement and compared for three quantitative measurements: tract volume, median fiber density and mean FA, using linear mixed-effects models...
June 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28623518/primary-intraventricular-osteosarcoma-in-a-3-year-old-boy-report-of-a-case-and-review-of-literature
#9
Ahmad Pourrashidi Boshrabadi, Mohammadali Surakiazad, Kourosh Karimi Yarandi, Abbas Amirjamshidi
INTRODUCTION: Extraskeletal osteosarcoma (ExOS) is a rare and well-known entity. Three to 4% of ExOSs occur in the head and neck region but anecdotally in the central nervous system (CNS). Primary intracranial osteosarcoma (PIOS) can originate from the skull, brain parenchyma, or meninges. CASE PRESENTATION: A 3-year-old boy with history of head trauma 2 weeks before admission is presented harboring an ExOS in the left temporoparietal region. He was operated with the impression of intraventricular meningioma but turned to be a PIOS without any sources in his skeleton...
June 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28621619/histopathological-prognostic-factors-of-recurrence-following-definitive-therapy-for-atypical-and-malignant-meningiomas
#10
Daniel Kim, Andrzej Niemierko, William L Hwang, Anat O Stemmer-Rachamimov, William T Curry, Fred G Barker, Robert L Martuza, Kevin S Oh, Jay S Loeffler, Helen A Shih
OBJECTIVE Patients with atypical and malignant (WHO Grade II and III) meningiomas have a worse prognosis than patients with benign (WHO Grade I) meningiomas. However, there is limited understanding of the pathological risk factors that affect long-term tumor control following combined treatment with surgery and radiation therapy. Here, the authors identify clinical and histopathological risk factors for the progression and/or recurrence (P/R) of high-grade meningiomas based on the largest series of patients with atypical and malignant meningiomas, as defined by the 2007 WHO classification...
June 16, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28616382/improving-language-mapping-in-clinical-fmri-through-assessment-of-grammar
#11
Monika Połczyńska, Kevin Japardi, Susan Curtiss, Teena Moody, Christopher Benjamin, Andrew Cho, Celia Vigil, Taylor Kuhn, Michael Jones, Susan Bookheimer
INTRODUCTION: Brain surgery in the language dominant hemisphere remains challenging due to unintended post-surgical language deficits, despite using pre-surgical functional magnetic resonance (fMRI) and intraoperative cortical stimulation. Moreover, patients are often recommended not to undergo surgery if the accompanying risk to language appears to be too high. While standard fMRI language mapping protocols may have relatively good predictive value at the group level, they remain sub-optimal on an individual level...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28614179/molecular-hydrogen-inhalation-attenuates-postoperative-cognitive-impairment-in-rats
#12
Yuchang Xin, Huiying Liu, Peng Zhang, Liuhui Chang, Keliang Xie
Postoperative cognitive decline is a major clinical problem with high morbidity and mortality after surgery. Many studies have found that molecular hydrogen (H2) has significant neuroprotection against acute and chronic neurological injury by regulating inflammation and apoptosis. In this study, we hypothesized that H2 treatment could ameliorate the development of cognitive impairment following surgery. Adult male rats were subjected to stabilized tibial fracture operation under anesthesia. Two percent of H2 was inhaled for 3 h beginning at 1 h after surgery...
June 13, 2017: Neuroreport
https://www.readbyqxmd.com/read/28612613/-recent-overview-of-kidney-cancer-diagnostics-and-treatment
#13
J Marenčák, M Ondrušová, D Ondruš
The incidence of kidney cancer has increased in the majority of countries worldwide, and this disease has relatively high lethality. For many years, the Slovak Republic has been among the countries with the highest kidney cancer incidence, in particular in 2012 (according to global estimated values) in both genders, although mainly in females. In the last few years, the Czech Republic has had the highest incidence of kidney cancer worldwide. The use of imaging techniques such as ultrasound and computerized tomography has increased the detection of asymptomatic renal cell cancer...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28611936/large-transcalvarial-meningioma-surgical-resection-aided-by-preoperative-embolization
#14
Ali S Haider, Haris Rana, Lyndon K Lee, Mrigank S Shail, Dean Leonard, Umair Khan, Richa Thakur, Tijani Osumah, Sam Finn, Kennith F Layton
Meningiomas are the most common type of primary brain tumors, accounting for about 30% of all brain tumors. Meningiomas originate from the meninges and can be associated with any part of the skull. Classification of meningiomas is based upon the World Health Organization (WHO) classification system and prognosis of meningiomas can be determined via histologic grading. Surgery is the gold standard treatment option for all types of meningiomas. Due to the high vascularity of some meningiomas, surgical resection can lead to certain complications including intraoperative blood loss and hemorrhage...
May 8, 2017: Curēus
https://www.readbyqxmd.com/read/28608763/identifying-clinical-risk-in-low-grade-gliomas-and-appropriate-treatment-strategies-with-special-emphasis-on-the-role-of-surgery
#15
Sébastien Boissonneau, Hugues Duffau
Diffuse low-grade glioma (DLGG) is a chronic tumoral disease that ineluctably grows, migrates along white matter pathways, and progresses to a higher grade of malignancy. Areas covered: To determine the best individualized treatment attitude for each DLGG patient, and to redefine it over the years, i.e. to optimize the "onco-functional balance" of serial and multimodal therapies, the understanding of the natural history of this chronic disease is crucial but not sufficient. A paradigmatic shift is to tailor the individual management according to the dynamic relationships between DLGG course and neural remodeling...
June 13, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28607829/adaptive-hypofractionated-gamma-knife-radiosurgery-in-the-acute-management-of-large-thymic-carcinoma-brain-metastases
#16
Georges Sinclair, Heather Martin, Michael Fagerlund, Amir Samadi, Hamza Benmakhlouf, Ernest Doodo
BACKGROUND: Brain metastases often lead to serious neurological impairment and life threatening states. Their acute management remains complex, particularly in the case of rare malignancies with aggressive evolution. In large single lesions, open surgery followed by radiation to the surgical cavity is widely regarded as the best approach; yet in many cases, microsurgery is not feasible due to the lesion's critical location and/or the number of brain metastases present. We report the effects of adaptive hypofractionated gamma knife radiosurgery in the acute management of critically located thymic carcinoma metastases...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28606582/patients-perioperative-experience-of-awake-deep-brain-stimulation-for-parkinson-s-disease
#17
Eoin Mulroy, Nigel Robertson, Lorraine Macdonald, Arnold Bok, Mark Simpson
BACKGROUND: Awake craniotomy for tumor resection and epilepsy surgery is a well-tolerated procedure. Qualitative data on patients' experience of awake deep brain stimulation (DBS) is however, lacking. We collected qualitative data on patients' experience of awake DBS with a view to identifying areas for improvement. METHODS: Forty-one patients undergoing DBS for Parkinson's disease (PD) between 2009 and 2015 were surveyed using a structured questionnaire designed to receive patient feedback regarding perioperative management of the awake stage of the procedure CONCLUSIONS: Though awake DBS is well-tolerated, pain and off-period symptoms are an issue for a significant number of patients...
June 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28601978/recurrent-or-symptomatic-residual-posterior-fossa-hemangioblastomas-how-are-they-different-from-their-primary-counterparts
#18
Shruti Gupta, Lily Pal, Jayesh C Sardhara, Awadhesh K Jaiswal, Arun Srivastava, Anant Mehrotra, Kuntal Kanti Das, Sanjay Behari
BACKGROUND: Posterior fossa hemangioblastomas are WHO grade I benign lesions with a surprisingly high recurrence rate. This study determines the factors responsible for recurrence and the clinico-radiological and histopathological differences between primary (group A; n = 60) and recurrent/symptomatic residual (group B; n = 24) tumors. METHODS: Radiologically, tumors were differentiated into cystic, cystic with a mural nodule, solid-cystic/microcystic and solid...
June 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28601642/comparison-of-citrated-and-fresh-whole-blood-for-viscoelastic-coagulation-testing-during-elective-neurosurgery
#19
E Silverberg, F Tornqvist, T Kander, J Bengzon, C Solomon, J Bonnevier, U Schött
BACKGROUND: Previous viscoelastic haemostatic tests studies have often indicated a hypercoagulative test signal with citrated blood, which could influence clinical decision makings. PURPOSE: The aim of this study was to compare fresh and citrated whole blood using two non-automated viscoelastic ROTEM and Sonoclot tests. Our hypothesis was that citrated blood would demonstrate a hypercoagulative response in this setting, not tested before. METHODS: Perioperative viscoelastic coagulation changes were evaluated with a ROTEM and Sonoclot in 38 patients undergoing elective brain tumor surgery...
June 3, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28601568/intraoperative-serum-lactate-is-not-a-predictor-of-survival-after-glioblastoma-surgery
#20
J P Cata, S Bhavsar, K B Hagan, R Arunkumar, R Grasu, A Dang, R Carlson, B Arnold, K Popat, Ganesh Rao, Y Potylchansky, I Lipski, Sally Ratty, A T Nguyen, Thomas McHugh, L Feng, T F Rahlfs
BACKGROUND: Cancer cells can produce lactate in high concentrations. Two previous studies examined the clinical relevance of serum lactate as a biomarker in patients with brain tumors. Patients with high-grade tumors have higher serum concentrations of lactate than those with low-grade tumors. We hypothesized that serum lactic could be used of biomarker to predictor of survival in patients with glioblastoma (GB). METHODS: This was a retrospective study. Demographic, lactate concentrations and imaging data from 275 adult patients with primary GB was included in the analysis...
June 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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