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https://www.readbyqxmd.com/read/28634310/-a-case-of-coexistent-glossopharyngeal-neuralgia-and-hemifacial-spasm-successfully-treated-with-transposition-of-the-vertebral-artery
#1
Takashi Fujii, Naoki Otani, Yohei Otsuka, Takashi Matsumoto, Shunsuke Tanoue, Hideaki Ueno, Satoshi Tomura, Arata Tomiyama, Terushige Toyooka, Kojiro Wada, Kentaro Mori
A case of coexistent glossopharyngeal neuralgia and hemifacial spasm was treated by transposition of the vertebral artery. A 60-year-old man was referred to our hospital due to pain in the left posterior part of the tongue that was difficult to control with oral medication at a local hospital. The diagnosis was left glossopharyngeal neuralgia based on the symptoms, imaging findings, and lidocaine test results. Moreover, the patient had left hemifacial spasm. Microvascular decompression was performed, which confirmed that the vertebral artery was compressing the lower cranial nerve and the posterior inferior cerebellar artery was compressing the root exit zone of the facial nerve...
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28623412/long-term-follow-up-after-endoscopic-trans-sphenoidal-surgery-or-initial-observation-in-clivus-chordomas
#2
Jon Ramm-Pettersen, Radek Frič, Jon Berg-Johnsen
BACKGROUND: Resection of clivus chordomas through extensive skull base approaches is associated with high mortality and morbidity even in experienced hands. We report our experience with endoscopic trans-sphenoidal surgery, or a "wait-and-scan" strategy in selected patients. METHOD: Ten patients were diagnosed with clivus chordomas during an 8-year period. Six patients underwent primary treatment with endoscopic trans-sphenoidal surgery, followed by adjuvant proton-beam therapy in three of these patients...
June 16, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28598294/open-versus-percutaneous-instrumentation-in-thoracolumbar-fractures-magnetic-resonance-imaging-comparison-of-paravertebral-muscles-after-implant-removal
#3
Yves Ntilikina, David Bahlau, Julien Garnon, Sébastien Schuller, Axel Walter, Mickaël Schaeffer, Jean-Paul Steib, Yann Philippe Charles
OBJECTIVE Percutaneous instrumentation in thoracolumbar fractures is intended to decrease paravertebral muscle damage by avoiding dissection. The aim of this study was to compare muscles at instrumented levels in patients who were treated by open or percutaneous surgery. METHODS Twenty-seven patients underwent open instrumentation, and 65 were treated percutaneously. A standardized MRI protocol using axial T1-weighted sequences was performed at a minimum 1-year follow-up after implant removal. Two independent observers measured cross-sectional areas (CSAs, in cm(2)) and region of interest (ROI) signal intensity (in pixels) of paravertebral muscles by using OsiriX at the fracture level, and at cranial and caudal instrumented pedicle levels...
June 9, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28587706/coma-after-acute-head-injury
#4
Raimund Firsching
BACKGROUND: Coma after acute head injury is always alarming. Depending on the type of injury, immediate treatment may be life-saving. About a quarter of a million patients are treated for traumatic brain injury in Germany each year. Treatment recommendations must be updated continually in the light of advancing knowledge. METHODS: This review of treatment recommendations, prognostic factors, and the pathophysiology of coma after acute head injury is based on a 2015 German guideline for the treatment of head injury in adults and on pertinent publications retrieved by a selective search in PubMed for literature on post-traumatic coma...
May 5, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28576543/pycnodysostosis-at-otorhinolaryngology
#5
Tekin Baglam, Adem Binnetoglu, Muhammet Fatih Topuz, Nilay Baş Ikizoglu, Refika Ersu, Serap Turan, Murat Sarı
AIM: Pycnodysostosis is a rare autosomal, recessive, skeletal dysplasia caused by a mutation in the cathepsin k gene. Pycnodysostosis is characterized by short stature, characteristic facial appearance (delayed closure of fontanelles and cranial sutures, mandibular hypoplasia and angle disorder, blue sclera), and acroosteolysis of the distal phalanges. Our aim was to describe the otorhinolaryngologic findings, differential diagnoses, various treatment options, and followup in eight cases of pycnodysostosis...
April 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28566437/local-dna-repair-inhibition-for-sustained-radiosensitization-in-high-grade-gliomas
#6
Amanda R King, Christopher D Corso, Evan M Chen, Eric Song, Paul Bongiorni, Zhe Chen, Ranjini K Sundaram, Ranjit S Bindra, W Mark Saltzman
High-grade gliomas such as glioblastoma (GBM) and diffuse intrinsic pontine glioma (DIPG) are characterized by an aggressive phenotype with nearly universal local disease progression despite multimodal treatment, which typically includes chemotherapy, radiation therapy (RT), and possibly surgery. Radiosensitizers that have improved the effects of RT for extracranial tumors have been ineffective for the treatment of GBM and DIPG, in part due to poor blood brain barrier penetration and rapid intracranial clearance of small molecules...
May 31, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28552736/analysis-of-prognostic-factors-survival-rates-and-treatment-in-anaplastic-hemangiopericytoma
#7
Gui-Jun Zhang, Li-Wei Zhang, Da Li, Zhen Wu, Jun-Ting Zhang
OBJECTIVE: In this study, we aimed to identify prognostic factors in anaplastic hemangiopericytoma (AHPC) and clinical behaviors that differentiate primary and secondary AHPC. METHODS: The clinical data associated with 52 cases of AHPC that were surgically treated between 2008 and 2015 were reviewed. The patients were classified into the following 2 groups: primary AHPC (AHPC diagnosed at the first surgery) and secondary AHPC (malignant transformation from a lower-grade tumor)...
May 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28540121/comprehensive-preoperative-staging-system-for-endoscopic-single-and-multicorridor-approaches-to-juvenile-nasal-angiofibromas
#8
Trichy N Janakiram, Shilpee B Sharma, Ekkehard Kasper, Onkar Deshmukh, Iype Cherian
BACKGROUND: Juvenile nasal angiofibromas (JNA) is a benign lesion with high vascularity and propensity of bone erosion leading to skull base invasion and intracranial extension. It is known to involve multiple compartments, which are often surgically difficult to access. With evolution in surgical expertise and technical innovations, endoscopic and endoscopic-assisted management has become the preferred choice of surgical management. Over the last four decades, various staging systems have been proposed, which are largely based on the extent of nasal angiofibroma...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28528370/systematic-radiographic-evaluation-of-three-potential-implantation-sites-for-a-semi-implantable-bone-conduction-device-in-52-patients-after-previous-mastoid-surgery
#9
Bernhard G Weiss, Mattis Bertlich, Rebecka Scheele, Martin Canis, Mark Jakob, Jan M Sohns, Friedrich Ihler
The aim of this study was the evaluation of three localizations for the implantation of a semi-implantable transcutaneous bone conduction device after previous mastoid surgery. This is a retrospective review of electronic datasets of cranial computed tomography studies. The study setting is one tertiary referral center and included 52 consecutive adult patients (60 temporal bones) with a history of mastoid surgery. The intervention was virtual placement of the device with a planning software within the remaining mastoid as well as dorsal of the sigmoid sinus and caudal of the transverse sinus (retrosigmoidal localization) and dorsocranial of the parietomastoid suture and cranial of the transverse sinus (parietal localization)...
May 20, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28527929/new-predictors-of-complications-in-carotid-body-tumor-resection
#10
MULTICENTER STUDY
Gloria Y Kim, Peter F Lawrence, Rameen S Moridzadeh, Kate Zimmerman, Alberto Munoz, Kuauhyama Luna-Ortiz, Gustavo S Oderich, Juan de Francisco, Jorge Ospina, Santiago Huertas, Leonardo R de Souza, Thomas C Bower, Steven Farley, Hugh A Gelabert, Marcus R Kret, E John Harris, Giovanni De Caridi, Francesco Spinelli, Matthew R Smeds, Christos D Liapis, John Kakisis, Anastasios P Papapetrou, Eike S Debus, Christian-A Behrendt, Edgar Kleinspehn, Joshua D Horton, Firas F Mussa, Stephen W K Cheng, Mark D Morasch, Khurram Rasheed, Matthew E Bennett, Jean Bismuth, Alan B Lumsden, Christopher J Abularrage, Alik Farber
OBJECTIVE: This study examined the relationship between two new variables, tumor distance to base of skull (DTBOS) and tumor volume, with complications of carotid body tumor (CBT) resection, including bleeding and cranial nerve injury. METHODS: Patients who underwent CBT resection between 2004 and 2014 were studied using a standardized, multi-institutional database. Demographic, perioperative, and outcomes data were collected. CBT measurements were determined from computed tomography, magnetic resonance imaging, and ultrasound examination...
June 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28512008/3d-printing-and-modelling-of-customized-implants-and-surgical-guides-for-non-human-primates
#11
Xing Chen, Jessy K Possel, Catherine Wacongne, Anne F van Ham, P Christiaan Klink, Pieter R Roelfsema
BACKGROUND: Primate neurobiologists use chronically implanted devices such as pedestals for head stabilization and chambers to gain access to the brain and study its activity. Such implants are skull-mounted, and made from a hard, durable material, such as titanium. NEW METHOD: Here, we present a low-cost method of creating customized 3D-printed cranial implants that are tailored to the anatomy of individual animals. We performed pre-surgical computed tomography (CT) and magnetic resonance (MR) scans to generate three-dimensional (3D) models of the skull and brain...
May 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28511365/morphological-and-morphometric-analysis-of-hypoglossal-canal-in-north-indian-dry-skulls-and-it-s-significance-in-cranial-base-surgeries
#12
Shalini Kumar, Ranjana Verma, Arpita Mahajan Rai, Raj D Mehra
INTRODUCTION: Hypoglossal Canal (HC) is a paired bony passage which is situated above the Occipital Condyle (OC) and transmits hypoglossal nerve and blood vessels. Studies on the osteotic variations of HC has been a field of considerable interest to research workers especially because of its clinical, radiological and surgical significance. AIM: The aim of the present study was to analyze the morphological and morphometric features of HC and its topographical relationship with OC...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28504985/current-opinion-in-otolaryngology-and-head-and-neck-surgery-frontal-sinus-fractures
#13
Robert J Chouake, Brett A Miles
PURPOSE OF REVIEW: The purpose of this manuscript is to review the current literature regarding the management of frontal sinus fractures and offer the authors opinion on the current management of these traumatic injuries. We evaluate recently proposed management algorithms as well as novel surgical approaches reported within the last few years. RECENT FINDINGS: Patient selection for sinus sparing treatment modalities is balanced between fracture severity, involved structures, and reliable patient surveillance...
May 12, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28504187/transoral-oropharyngeal-resection-classification-proposal-of-the-scorl-working-group
#14
David Virós Porcuna, Francisco Avilés Jurado, Carlos Pollán Guisasola, Rosa Delia Ramírez Ruiz, Jacinto García Lorenzo, Marc Tobed Secall, Isabel Vilaseca González, José Miguel Costa González, Josep Soteras Olle, Francesc Casamitjana Claramunt, Anna Sumarroca Trouboul, Rafael Hijano Esqué, Guillem Viscasillas Pallàs, Manel Mañós Pujol, Miquel Quer Agustí
INTRODUCTION AND GOALS: There has been a very significant increase in the use of minimally invasive surgery has in the last decade. In order to provide a common language after transoral surgery of the oropharynx, a system for classifying resections has been created in this area, regardless of the instrumentation used. METHODS: From the Oncology Working Group of the Catalan Society of Otorhinolaryngology, a proposal for classification based on a topographical division of the different areas of the oropharynx is presented, as also based on the invasion of the related structures according to the anatomical routes of extension of these tumours...
May 11, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28483229/use-of-three-dimensional-cad-cam-assisted-virtual-surgical-simulation-and-planning-in-the-pediatric-craniofacial-population
#15
Rachel Gray, Alexander Gougoutas, Vinh Nguyen, Jesse Taylor, Nicholas Bastidas
OBJECTIVE: Virtual Surgical Planning (VSP) and computer-aided design/computer-aided manufacturing (CAD/CAM) have recently helped improve efficiency and accuracy in many different craniofacial surgeries. Research has mainly focused on the use in the adult population with the exception of the use for mandibular distractions and cranial vault remodeling in the pediatric population. This study aims to elucidate the role of VSP and CAD/CAM in complex pediatric craniofacial cases by exploring its use in the correction of midface hypoplasia, orbital dystopia, mandibular reconstruction, and posterior cranial vault expansion...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28474186/sphenoorbital-meningioma-surgical-series-and-design-of-an-intraoperative-management-algorithm
#16
Lior Gonen, Eytan Nov, Nir Shimony, Ben Shofty, Nevo Margalit
Current surgical removal of sphenoorbital meningiomas (SOM) mainly aims at reduction of proptosis and restoration of visual function; some stages of the surgical technique are controversial. In this study, we aim to present a surgical decision-making algorithm for SOM. A retrospective study of 27 patients who underwent resection of SOM in our center (2005-2014) was conducted. The primary outcomes evaluated were postoperative visual function and radiological exophthalmos. In our study, clinical proptosis was the most common presenting sign (92%), followed by visual loss (37%)...
May 4, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28474182/homogenous-scaffold-based-cranial-skull-implant-modelling-and-structural-analysis-unit-cell-algorithm-meshless-approach
#17
V Phanindra Bogu, Y Ravi Kumar, Asit Kumar Khanra
This computational study explores a unique modelling approach of the cranial implant, homogenous scaffold algorithm and meshless method, respectively. This meshless method is employed to review the implant underneath intracranial pressure (ICP) conditions with a standard ICP range of 7 mm of Hg to 15 mm of Hg. The algorithm is used to introduce uniform porosity within the implant enabling the implant behaviour with respect to ICP conditions. However, increase in the porosity leads to variation in deformation and equivalent stress, respectively...
May 5, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28472679/a-fiducial-skull-marker-for-precise-mri-based-stereotaxic-surgery-in-large-animal-models
#18
Andreas Nørgaard Glud, Johannes Bech, Laura Tvilling, Hamed Zaer, Dariusz Orlowski, Lise Moberg Fitting, Dora Ziedler, Michael Geneser, Ryan Sangill, Aage Kristian Olsen Alstrup, Carsten Reidies Bjarkam, Jens Christian Hedemann Sørensen
BACKGROUND: Stereotaxic neurosurgery in large animals is used widely in different sophisticated models, where precision is becoming more crucial as desired anatomical target regions are becoming smaller. Individually calculated coordinates are necessary in large animal models with cortical and subcortical anatomical differences. NEW METHOD: We present a convenient method to make an MRI-visible skull fiducial for 3D MRI-based stereotaxic procedures in larger experimental animals...
June 15, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28463622/initial-experience-with-a-robotically-operated-video-optical-telescopic-microscope-in-cranial-neurosurgery-feasibility-safety-and-clinical-applications
#19
Lior Gonen, Srikant S Chakravarthi, Alejandro Monroy-Sosa, Juanita M Celix, Nathaniel Kojis, Maharaj Singh, Jonathan Jennings, Melanie B Fukui, Richard A Rovin, Amin B Kassam
OBJECTIVE The move toward better, more effective optical visualization in the field of neurosurgery has been a focus of technological innovation. In this study, the authors' objectives are to describe the feasibility and safety of a new robotic optical platform, namely, the robotically operated video optical telescopic-microscope (ROVOT-m), in cranial microsurgical applications. METHODS A prospective database comprising patients who underwent a cranial procedure between April 2015 and September 2016 was queried, and the first 200 patients who met the inclusion criteria were selected as the cohort for a retrospective chart review...
May 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28460422/effect-of-stem-sizing-and-position-on-short-term-complications-with-canine-press-fit-cementless-total-hip-arthroplasty
#20
Sarah Townsend, Stanley E Kim, Antonio Pozzi
OBJECTIVE: To determine the influence of stem sizing and positioning with early subsidence and stem complications with cementless (BFX) total hip arthroplasty (THA). STUDY DESIGN: Retrospective case series. ANIMALS: Fifty-five dogs; 58 THAs. METHODS: Eighty cobalt-chromium BFX THAs were reviewed, 58 met inclusion criteria. Implant size, positioning, and major complications within 12 months of surgery were recorded. Femoral canal flare (FCF), canal fill, stem angle, and subsidence at 3 months were measured from postoperative radiographs...
April 29, 2017: Veterinary Surgery: VS
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