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https://www.readbyqxmd.com/read/28935546/fluorescein-guided-resection-of-intramedullary-spinal-cord-tumors-results-from-a-preliminary-multicentric-retrospective-study
#1
Francesco Acerbi, Claudio Cavallo, Karl-Michael Schebesch, Mehmet Osman Akcakaya, Camilla de Laurentis, Mustafa Kemal Hamamcioglu, Morgan Broggi, Alexander Brawanski, Jacopo Falco, Roberto Cordella, Paolo Ferroli, Telat Kiris, Julius Höhne
INTRODUCTION: IMSCTs are rare heterogenous lesions usually enhancing at pre-operative MRI, due to a damaged BBB. SF is a dye that accumulates in areas of the CNS with a damaged BBB. Given the pattern of MRI contrast-enhancement of the majority of IMSCTs, the use of this fluorescent tracer could improve tumor visualization and quality of resection. In this paper, we present the first experience on the application of fluorescein-guided technique for surgical removal of IMSCTs. METHODS: 11 patients (6 males, 5 females, mean age 50...
September 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28917587/early-or-late-radiotherapy-following-gross-or-subtotal-resection-for-atypical-meningiomas-clinical-outcomes-and-local-control
#2
Ammoren Dohm, Emory R McTyre, Michael D Chan, Claire Fan, Scott Isom, J Daniel Bourland, Ryan T Mott, Christina K Cramer, Stephen B Tatter, Adrian W Laxton
We report a single institution series of surgery followed by either early adjuvant or late radiotherapy for atypical meningiomas (AM). AM patients, by WHO 2007 definition, underwent subtotal resection (STR) or gross total resection (GTR). Sixty-three of a total 115 patients then received fractionated or stereotactic radiation treatment, early adjuvant radiotherapy (≤4months after surgery) or late radiotherapy (at the time of recurrence). Kaplan Meier method was used for survival analysis with competing risk analysis used to assess local failure...
September 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28902637/development-of-fish-collagen-bioactive-glass-chitosan-composite-nanofibers-as-a-gtr-gbr-membrane-for-inducing-periodontal-tissue-regeneration
#3
Tian Zhou, Xin Liu, Baiyan Sui, Chao Liu, Xiumei Mo, Jiao Sun
The development of a guided tissue or bone regeneration (GTR/GBR) membrane with excellent performance has been a major challenge in the biomedical field. The present study was designed to prepare a biomimetic electrospun fish collagen/bioactive glass/chitosan (Col/BG/CS) composite nanofiber membrane and determine its structure, mechanical property, antibacterial activity, and biological effects on human periodontal ligament cells (HPDLCs). The effects of this composite membrane on inducing periodontal tissue regeneration were evaluated using a dog class II furcation defect model...
September 13, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28893049/comparative-evaluation-of-the-efficacy-of-bioactive-ceramic-composite-granules-alone-and-in-combination-with-platelet-rich-fibrin-in-the-treatment-of-mandibular-class-ii-furcation-defects-a-clinical-and-radiographic-study
#4
Hima S Lohi, Dilip G Nayak, Ashita S Uppoor
INTRODUCTION: Predictable closure of furcation defects with bone grafts, Guided Tissue Regeneration (GTR) and a combination of the two has remained an elusive goal so far. Hence, evaluation of biomimetic agents as candidate technologies for periodontal regeneration merit due consideration. In this study, Choukroun's Platelet Rich Fibrin (PRF), a second generation platelet concentrate, is combined with bone graft to examine if the addition enhances the therapeutic potential of bone graft in the management of Class II furcation defects...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28881115/the-role-of-adjuvant-treatment-in-patients-with-high-grade-meningioma
#5
Minjae Cho, Jin-Deok Joo, In Ah Kim, Jung Ho Han, Chang Wan Oh, Chae-Yong Kim
OBJECTIVE: To investigate the efficacy of adjuvant treatment in patients with high-grade meningioma. METHODS: A retrospective analysis was performed for patients with high-grade meningioma, World Health Organization grade 2 or 3, in a single center between 2003 and 2014. The patients were reviewed according to age at diagnosis, sex, the location of meningioma, degree of tumor resection, histological features, and type of adjuvant treatment. These factors were analyzed by Firth logistic regression analyses...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28869375/treatment-strategies-for-craniopharyngiomas
#6
Malte Ottenhausen, Kavelin Rumalla, Emanuele LA Corte, Andrew Alalade, Prakash Nair, Jonathan Forbes, Atef Ben Nsir, Theodore H Schwartz
Craniopharyniomas arise from the sellar region and are particularly challenging because of their close proximity to critical neurovascular structures, including cranial nerves, brainstem, internal carotid arteries, posterior cerebral arteries, hypothalamus, and the pituitary gland. The tumors are benign on histology but can cause serious symptoms by compression of surrounding vital structures. While radical surgery and gross total resection (GTR) remains the first line treatment, choosing the optimal surgical approach is critical for the minimization of complications and post-operative morbidity...
September 4, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28868255/resection-of-gliomas-with-and-without-neuropsychological-support-during-awake-craniotomy-effects-on-surgery-and-clinical-outcome
#7
Anna Kelm, Nico Sollmann, Sebastian Ille, Bernhard Meyer, Florian Ringel, Sandro M Krieg
BACKGROUND: During awake craniotomy for tumor resection, a neuropsychologist (NP) is regarded as a highly valuable partner for neurosurgeons. However, some centers do not routinely involve an NP, and data to support the high influence of the NP on the perioperative course of patients are mostly lacking. OBJECTIVE: The aim of this study was to investigate whether there is a difference in clinical outcomes between patients who underwent awake craniotomy with and without the attendance of an NP...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28867806/how-stress-treatments-influence-the-performance-of-biodegradable-poly-butylene-succinate-based-copolymers-with-thioether-linkages-for-food-packaging-applications
#8
Valentina Siracusa, Laura Genovese, Andrea Munari, Nadia Lotti
Biodegradable poly(butylene succinate) (PBS)-based random copolymers containing thioether linkages (P(BSxTDGSy)) of various compositions have been investigated and characterized from the gas barrier, thermal, and mechanical point of view, after food contact simulants or thermal and photoaging processes. Each stress treatment was performed on thin films and the results obtained have been compared to the same untreated film, used as a standard. Barrier properties with different gases (O₂ and CO₂) were evaluated, showing that the polymer chemical composition strongly influenced the permeability behavior...
August 30, 2017: Materials
https://www.readbyqxmd.com/read/28867324/surgical-management-and-outcomes-of-intracranial-chondromas-a-single-center-case-series-of-66-patients
#9
Jian-Cong Weng, Da Li, Huan Li, Jun-Peng Ma, Kai-Bing Tian, Liang Wang, Li-Wei Zhang, Zhen Wu, Jun-Ting Zhang
OBJECTIVE: Management of intracranial chondromas (ICDs) is difficult. This study aims to propose a tailored management strategy based on our management of ICDs. METHODS: A retrospective review was performed in 66 patients who received surgical operations at our institute. Clinical charts and radiographs were reviewed, follow-up was performed, and adverse factors for progression-free survival (PFS) and overall survival (OS) were evaluated. RESULTS: The pre- and postoperative KPS was 81...
August 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28866225/fabrication-and-characterization-of-two-layered-nanofibrous-membrane-for-guided-bone-and-tissue-regeneration-application
#10
Maryam Masoudi Rad, Saied Nouri Khorasani, Laleh Ghasemi-Mobarakeh, Molamma P Prabhakaran, Mohammad Reza Foroughi, Mahshid Kharaziha, Niloufar Saadatkish, Seeram Ramakrishna
Membranes used in dentistry act as a barrier to prevent invasion of intruder cells to defected area and obtains spaces that are to be subsequently filled with new bone and provide required bone volume for implant therapy when there is insufficient volume of healthy bone at implant site. In this study a two-layered bioactive membrane were fabricated by electrospinning whereas one layer provides guided bone regeneration (GBR) and fabricated using poly glycerol sebacate (PGS)/polycaprolactone (PCL) and Beta tri-calcium phosphate (β-TCP) (5, 10 and 15%) and another one containing PCL/PGS and chitosan acts as guided tissue regeneration (GTR)...
November 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28838874/youtcomes-following-endoscopic-endonasal-resection-of-craniopharyngiomas-in-the-pediatric-population
#11
Vishal S Patel, Andrew Thamboo, Jennifer Quon, Jayakar V Nayak, Peter H Hwang, Michael Edwards, Zara M Patel
BACKGROUND: Craniopharyngiomas have traditionally been treated via open, transcranial approaches. More recently, endoscopic, transsphenoidal approaches have been increasingly utilized; however very few case-series exist in the pediatric population. METHODS: A retrospective review of patients (<18 years) undergoing endoscopic transsphenoidal resection of craniopharyngiomas between 1995 and 2016 was performed. Preoperative data included presenting symptoms, tumor size, location, and components...
August 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28831590/limitations-of-the-endonasal-endoscopic-approach-in-treating-olfactory-groove-meningiomas-a-systematic-review
#12
REVIEW
Sathwik Raviraj Shetty, Armando S Ruiz-Treviño, Sacit Bulent Omay, Joao Paulo Almeida, Buqing Liang, Yu-Ning Chen, Harminder Singh, Theodore H Schwartz
OBJECTIVE: To review current management strategies for olfactory groove meningioma (OGM)s and the recent literature comparing endoscopic endonasal (EEA) with traditional transcranial (TCA) approaches. METHODS: A PubMed search of the recent literature (2011-2016) was performed to examine outcomes following EEA and TCA for OGM. The extent of resection, visual outcome, postoperative complications and recurrence rates were analyzed using percentages and proportions, the Fischer exact test and the Student's t-test using Graphpad PRISM 7...
August 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28831588/encouraging-option-of-multi-staged-gross-total-resection-for-a-c11orf-rela-fusion-positive-supratentorial-anaplastic-ependymoma
#13
Taishi Nakamura, Kohei Fukuoka, Junji Ikeda, Masahiro Yoshitomi, Naoko Udaka, Reo Tanoshima, Kensuke Tateishi, Shoji Yamanaka, Koichi Ichimura, Tetsuya Yamamoto
Ependymomas are primary neuroepithelial malignancies that mainly occur during childhood, and arise from ependymal cells along the ventricular systems of the CNS. Recently, it was elucidated that two-thirds of supratentorial (ST) ependymomas harbor oncogenic fusions of RELA, whose protein product is the principal effector of canonical NF-κB signaling. RELA fusion proteins activate signaling for tumor proliferation and malignant progression, resulting in poorer prognoses in these patients compared to those in patients with other ST ependymomas...
August 22, 2017: Brain Tumor Pathology
https://www.readbyqxmd.com/read/28826916/surgical-treatment-of-intramedullary-ependymomas
#14
Marek Prokopienko, Przemysław Kunert, Anna Podgórska, Andrzej Marchel
OBJECT: The aims of this study were to present the results of surgery for intramedullary ependymomas (IEs), analyze complication and recurrence rates, and analyze factors that might influence outcome. METHODS: The charts of 29 consecutive patients (women - 8, men - 21; mean age - 38 years; range: 18-72) operated for IE were retrospectively analyzed. Mean follow-up was 9 years. Eighteen tumors (62%) were located in the cervical or cervicothoracic spine, and average tumor length was four spinal levels...
July 8, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28826709/rosette-forming-glioneuronal-tumor-of-the-fourth-ventricle-in-children-case-report-and-literature-review
#15
Cynthia Morris, Zachary D Prudowsky, Vilaas Shetty, Thomas Geller, Samer K Elbabaa, Miguel Guzman, Mohamed S AbdelBaki
BACKGROUND: Rosette-forming glioneuronal tumor of the fourth ventricle (RGNT) is a rare World Health Organization (WHO) grade I neoplasm. Gross total resection (GTR) is the treatment of choice, and there is no firm evidence for other treatment options when GTR is not feasible. CASE DESCRIPTION: We describe a case of a 6-year-old boy who, following an initial subtotal resection of his fourth ventricular RGNT, received an individualized chemotherapy protocol with vincristine, etoposide and carboplatin for three cycles...
August 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28819705/clinical-features-and-long-term-outcomes-of-primary-spinal-malignant-melanoma-a-single-center-experience
#16
Liang Wu, Ning Yao, Jingyi Fang, Jun Yang, Yulun Xu
Primary malignant melanomas are very rare tumors in the spinal canal. In this study, the authors review their experience in a series of seven patients with histologically proven primary spinal malignant melanoma (PSMM) and discuss the clinical features, treatment strategy, and long-term outcomes. Clinical data of seven patients with PSMM treated at a single institution were retrospectively analyzed. There were three male and four female patients, with a mean age of 44 years. The mean duration of illness was 5...
August 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28816300/-combination-of-periodontal-orthodontic-and-endodontic-therapy-in-upper-anterior-teeth-with-hopeless-prognosis-and-long-time-follow-up-a-case-report
#17
Y Li, L Xu, Y H Zhou, X Y Ouyang, T Cao
It is complicated to decide the treatment plan of hopeless anterior teeth in esthetic zone due to severe periodontitis, periodontal-endodontic combined lesion or teeth trauma. The optional treatment plan for this kind of teeth includes retention after periodontal treatment, extraction and implant treatment, extraction and prosthodontic treatment and so on. To make an appropriate treatment plan, patients' periodontal conditions, periodontal biotype, local anatomy, esthetic demand, economic condition and social psychological status should be comprehensively considered...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28781922/fluorescein-for-resection-of-high-grade-gliomas-a-safety-study-control-in-a-single-center-and-review-of-the-literature
#18
Natale Francaviglia, Domenico Gerardo Iacopino, Gabriele Costantino, Alessandro Villa, Pietro Impallaria, Francesco Meli, Rosario Maugeri
BACKGROUND: The importance of a complete resection of high-grade gliomas (HGGs) has been highlighted in scientific literature, in order to limit tumor recurrence and above all to improve disease-free survival rates. Several fluorescent biomarkers have been tested to improve intraoperative identification of residual tumor; 5-aminolevulinic acid (5-ALA) and fluorescein sodium (FS) are now starting to play a central role in glioma surgery. We performed a retrospective analysis on 47 patients operated for HGGs...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28774071/in-vitro-and-in-vivo-study-of-a-novel-porcine-collagen-membrane-for-guided-bone-regeneration
#19
Eisner Salamanca, Chi-Yang Tsai, Yu-Hwa Pan, Yu-Te Lin, Haw-Ming Huang, Nai-Chia Teng, Che-Tong Lin, Sheng-Wei Feng, Wei-Jen Chang
For years, in order to improve bone regeneration and prevent the need of a second stage surgery to remove non-resorbable membranes, biological absorbable membranes have gradually been developed and applied in guided tissue regeneration (GTR). The present study's main objective was to achieve space maintenance and bone regeneration using a new freeze-dried developed porcine collagen membrane, and compare it with an already commercial collagen membrane, when both were used with a bovine xenograft in prepared alveolar ridge bone defects...
November 22, 2016: Materials
https://www.readbyqxmd.com/read/28733870/rethinking-childhood-ependymoma-a-retrospective-multi-center-analysis-reveals-poor-long-term-overall-survival
#20
Amanda E Marinoff, Clement Ma, Dongjing Guo, Matija Snuderl, Karen D Wright, Peter E Manley, Hasan Al-Sayegh, Claire E Sinai, Nicole J Ullrich, Karen Marcus, Daphne Haas-Kogan, Liliana Goumnerova, Wendy B London, Mark W Kieran, Susan N Chi, Jason Fangusaro, Pratiti Bandopadhayay
Ependymoma is the third most common brain tumor in children, but there is a paucity of large studies with more than 10 years of follow-up examining the long-term survival and recurrence patterns of this disease. We conducted a retrospective chart review of 103 pediatric patients with WHO Grades II/III intracranial ependymoma, who were treated at Dana-Farber/Boston Children's Cancer and Blood Disorders Center and Chicago's Ann & Robert H. Lurie Children's Hospital between 1985 and 2008, and an additional 360 ependymoma patients identified from the Surveillance Epidemiology and End Results (SEER) database...
July 21, 2017: Journal of Neuro-oncology
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