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https://www.readbyqxmd.com/read/29142779/-comparative-analysis-of-grade-i-vs-grade-ii-intracranial-meningiomas-in-a-retrospective-series-of-63-patients
#1
Federico Coppola, Juan Iaconis Campbell, Juan Manuel Herrero, Emilio Volpe, Tito Cersosimo
Objective: We aimed to demonstrate the differences between grade I and II (OMS classification) of intracranial meningiomas. We evaluate their location, Simpson resection grade, re-operations rate, adjuvant treatment and patient outcomes. Methods: We conduct a retrospective review of Sixty- three clinical records of patients who were diagnosed with meningiomas grade I and II (OMS) between 2009-2015 and received surgical treatment at our Hospital. We evaluated different variables such as age, sex, histological type, Simpson grade resection, location, symptoms, radiotherapy, follow-up, mortality rate and patient outcome...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29134162/lesions-mimicking-small-vestibular-schwannomas
#2
Matthias Scheich, Rudolf Hagen, Desiree Ehrmann-Müller, Brigitte Bison, Thomas Günthner-Lengsfeld, Camelia-Maria Monoranu, Hans-Ullrich Völker
Objective  Most tumors of the internal auditory canal and cerebellopontine angle (CPA) are vestibular schwannomas (VSs). Preoperative diagnosis is based on typical clinical symptoms and radiological findings. In rare cases, histopathology can, however, show different results. Design  This is a retrospective chart and database review. Setting  The study was conducted at a tertiary skull base referral center at a university hospital. Participants  A total of 207 consecutive cases of VS surgery via the middle cranial fossa approach performed between December 2005 and January 2015 were reviewed...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29130555/ethmoidal-adenocarcinoma-treated-by-exclusive-endoscopic-approach-focus-on-learning-curve-and-modification-of-management
#3
Natalie Oker, Benjamin Verillaud, Michel Wassef, Sébastien Froelich, Damien Bresson, Romain Kania, Philippe Herman
BACKGROUND: The purpose of this study was to investigate the outcome and recurrences for ethmoidal adenocarcinomas treated by exclusive endoscopic surgery in curative intent and investigate the role of the learning curve. METHODS: We conducted a single-center retrospective study, including 60 patients separated in 2 groups (2002-2011 n = 28 and 2012-2015 n = 32). RESULTS: The global survival rate at 5 years was 72.6%, and the global and local recurrence rates were 21...
November 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/29126120/cranial-chordoma-a-new-preoperative-grading-system
#4
Harley Brito da Silva, David Straus, Jason K Barber, Robert C Rostomily, Manuel Ferreira, Laligam N Sekhar
BACKGROUND: Chordomas are rare but challenging neoplasms involving the skull base. A preoperative grading system will be useful to identify both areas for treatment and risk factors, and correlate to the degree of resection, complications, and recurrence. OBJECTIVE: To propose a new grading system for cranial chordomas designed by the senior author. Its purpose is to enable comparison of different tumors with a similar pathology to clivus chordoma, and statistically correlate with postoperative outcomes...
November 3, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29119047/infections-in-deep-brain-stimulation-shaving-versus-not-shaving
#5
Felix S Gubler, Linda Ackermans, Pieter L Kubben, Aysun Damci, Mark L Kuijf, Mayke Oosterloo, R Jeroen Vermeulen, Sarah Hescham, Ersoy Kocabicak, Erkan Kurt, Yasin Temel
Background: To report our experience of infections in deep brain stimulation (DBS) surgeries comparing shaving versus no shaving of cranial hair. Nonshaving is strongly preferred by patients due to aesthetic and psychological factors. Methods: This study is a prospective follow-up of the infection rate in 43 nonshaven DBS cases between April 2014 and December 2015 compared to our former infection rate with shaving in our center. Minimum follow-up was 6 months. All patients, except 7 epilepsy patients, received implantation of the electrodes together with the extension cables and internal pulse generator in one session...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29107724/prosthetic-replacement-of-the-ocular-surface-ecosystem-prose-treatment-of-ocular-surface-disease-following-skull-base-tumor-resection
#6
Carolyn E Kloek, Karen W Jeng-Miller, Deborah S Jacobs, Ian F Dunn
Prosthetic Replacement of the Ocular Surface Ecosystem (PROSE) treatment is an effective, non-surgical therapeutic option for patients with ocular surface disease related to cranial nerve deficits secondary to skull base tumor resection. This case series describes the impact of PROSE treatment in patients with symptomatic exposure keratopathy or neurotrophic keratitis after skull base tumor surgery. All patients improved symptomatically and functionally with PROSE treatment, and have had sustained improvement for as long as 3 years...
October 28, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29080945/planning-of-skull-reconstruction-based-on-a-statistical-shape-model-combined-with-geometric-morphometrics
#7
Marc Anton Fuessinger, Steffen Schwarz, Carl-Peter Cornelius, Marc Christian Metzger, Edward Ellis, Florian Probst, Wiebke Semper-Hogg, Mathieu Gass, Stefan Schlager
PURPOSE: Virtual reconstruction of large cranial defects is still a challenging task. The current reconstruction procedures depend on the surgeon's experience and skills in planning the reconstruction based on mirroring and manual adaptation. The aim of this study is to propose and evaluate a computer-based approach employing a statistical shape model (SSM) of the cranial vault. METHODS: An SSM was created based on 131 CT scans of pathologically unaffected adult crania...
October 28, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29076075/proximal-type-epithelioid-sarcoma-in-skull-base-a-pathological-diagnosis-challenge-with-other-intracranial-tumors
#8
Duan Zejun, Yao Kun, Lu Dehong, Qi Xueling
Proximal-type ES (PES) is a rare and aggressive sarcoma originated from soft tissues with uncertain differentiation. It mainly affects middle-aged patients and often locates in proximal extremity and deep-seated tissues. Only one case of PES located in the skull base has been reported to date. Herein, we report two cases of PES occurred in the middle cranial fossa in two middle-aged Chinese women. Microscopically, the tumors were consisted of epithelial-like cells with or without rhabdoid cells. And frequent mitotic activity and coagulation necrosis were present...
October 26, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29068642/new-directions-in-3d-medical-modeling-3d-printing-anatomy-and-functions-in-neurosurgical-planning
#9
Paola Gargiulo, Iris Árnadóttir, Magnús Gíslason, Kyle Edmunds, Ingvar Ólafsson
This paper illustrates the feasibility and utility of combining cranial anatomy and brain function on the same 3D-printed model, as evidenced by a neurosurgical planning case study of a 29-year-old female patient with a low-grade frontal-lobe glioma. We herein report the rapid prototyping methodology utilized in conjunction with surgical navigation to prepare and plan a complex neurosurgery. The method introduced here combines CT and MRI images with DTI tractography, while using various image segmentation protocols to 3D model the skull base, tumor, and five eloquent fiber tracts...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29065569/new-directions-in-3d-medical-modeling-3d-printing-anatomy-and-functions-in-neurosurgical-planning
#10
Paolo Gargiulo, Íris Árnadóttir, Magnús Gíslason, Kyle Edmunds, Ingvar Ólafsson
This paper illustrates the feasibility and utility of combining cranial anatomy and brain function on the same 3D-printed model, as evidenced by a neurosurgical planning case study of a 29-year-old female patient with a low-grade frontal-lobe glioma. We herein report the rapid prototyping methodology utilized in conjunction with surgical navigation to prepare and plan a complex neurosurgery. The method introduced here combines CT and MRI images with DTI tractography, while using various image segmentation protocols to 3D model the skull base, tumor, and five eloquent fiber tracts...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29062268/comparison-of-diffusion-weighted-mri-reconstruction-methods-for-visualization-of-cranial-nerves-in-posterior-fossa-surgery
#11
Brendan Behan, David Q Chen, Francesco Sammartino, Danielle D DeSouza, Erika Wharton-Shukster, Mojgan Hodaie
Diffusion-weighted imaging (DWI)-based tractography has gained increasing popularity as a method for detailed visualization of white matter (WM) tracts. Different imaging techniques, and more novel, advanced imaging methods provide significant WM structural detail. While there has been greater focus on improving tract visualization for larger WM pathways, the relative value of each method for cranial nerve reconstruction and how this methodology can assist surgical decision-making is still understudied. Images from 10 patients with posterior fossa tumors (4 male, mean age: 63...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29061463/presentation-treatment-and-long-term-outcome-of-intrasellar-chordoma-a-pooled-analysis-of-institutional-seer-and-published-data
#12
Abdul-Kareem Ahmed, Hassan Y Dawood, Omar M Arnaout, Edward R Laws, Timothy R Smith
BACKGROUND: Chordoma that occurs primarily in the sella turcica is rare and presents unique treatment challenges. OBJECTIVE: The purpose of this study was to determine common features, treatment approaches and survival characteristics of intrasellar chordoma. METHODS: Institutional databases, the Surveillance, Epidemiology, and End Results (SEER) database, and PubMed/EMBASE were queried for chordoma with a primarily intrasellar component. The SEER database was also queried for adult skull base chordoma...
October 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29049147/virtual-reality-model-of-the-three-dimensional-anatomy-of-the-cavernous-sinus-based-on-a-cadaveric-image-and-dissection
#13
Zeng-Hui Qian, Xu Feng, Yang Li, Ke Tang
OBJECTIVE: Studying the three-dimensional (3D) anatomy of the cavernous sinus is essential for treating lesions in this region with skull base surgeries. Cadaver dissection is a conventional method that has insurmountable flaws with regard to understanding spatial anatomy. The authors' research aimed to build an image model of the cavernous sinus region in a virtual reality system to precisely, individually and objectively elucidate the complete and local stereo-anatomy. METHODS: Computed tomography and magnetic resonance imaging scans were performed on 5 adult cadaver heads...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29040146/the-role-of-preoperative-imaging-in-the-management-of-nonsyndromic-lambdoid-craniosynostosis
#14
Kavitha Ranganathan, Antonio Rampazzo, Asra Hashmi, Karin Muraszko, Jennifer Strahle, Christian J Vercler, Steven R Buchman
BACKGROUND: The necessity of imaging for patients with craniosynostosis is controversial. Lambdoid synostosis is known to be associated with additional anomalies, but the role of imaging in this setting has not been established. The purpose of this study was to evaluate the impact of preoperative imaging on intraoperative and postoperative management among patients undergoing operative intervention for lambdoid craniosynostosis. METHODS: A retrospective review of patients undergoing cranial vault remodeling for lambdoid craniosynostosis between January 2006 and 2014 was conducted...
October 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29036029/-anterior-skull-base-and-pericranial-flap-ossification-after-frontofacial-monobloc-advancement
#15
Anne Morice, Giovanna Paternoster, Agnès Ostertag, Syril James, Martine Cohen-Solal, Roman H Khonsari, Eric Arnaud
BACKGROUND: Frontofacial monobloc advancement (FFMBA) creates a communication between the anterior cranial fossa and nasal cavities. To tackle this issue, trans-orbital pericranial pedicled flaps (PF) are routinely performed in our center. This study aimed to assess the post-operative ossification of the anterior skull base and PF following FFMBA, and to identify factors influencing this ossification. METHODS: Measurements of the skull base only (SB) and of the ossified PF together with the SB (SB-OPF) were performed on CT scans at the naso-frontal (NF) and the naso-ethmoïdo-frontal (NEF) junctions...
October 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29032918/adults-with-22q11-2-deletion-syndrome-have-a-different-velopharyngeal-anatomy-with-predisposition-to-velopharyngeal-insufficiency
#16
Charles Filip, Davide Impieri, Ingegerd Aagenæs, Corstiaan Breugem, Hans Erik Høgevold, Tone Særvold, Ragnhild Aukner, Kari Lima, Kim Tønseth, Tore G Abrahamsen
AIM: To find out if subjects with 22q11.2 deletion syndrome (DS) have a different velopharyngeal anatomy which could cause velopharyngeal insufficiency (VPI). METHODS: A prospective study of 16 subjects >16 years of age with 22q11.2 DS, without overt cleft palate and without previous VPI surgery, and 48 healthy controls >18 years of age were included in the study. Speech was recorded and scored blindly by two independent senior speech therapists. All 64 individuals had MRI scans, which were analyzed blindly by a consultant radiologist...
September 22, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29032218/the-hypoglossal-nerve-anatomical-study-of-its-entire-course
#17
Giorgio Iaconetta, Domenico Solari, Alessandro Villa, Clotilde Castaldo, Rosa Maria Gerardi, Gianluigi Califano, Stefania Montagnani, Paolo Cappabianca
OBJECT: Only a few anatomic studies concerning the entire course of the hypoglossal nerve (cranial nerve XII) have been reported. The purpose of the present study is to analyze all the relationships of the XII nerve with the surrounding structures from the brainstem to the tongue through a microscopic perspective. A comprehensive anatomically and clinically oriented classification of its different segments is proposed. METHODS: Ten formalin-fixed adult human cadaveric heads (20 sides) were dissected with the aim to explore the entire course of the XII cranial nerve via the lateral suboccipital, the far lateral partial or total transcondilar routes...
October 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29031529/enhanced-surgical-outcomes-in-patients-with-skeletal-class-iii-facial-asymmetry-by-3-dimensional-surgical-simulation
#18
Ellen Wen-Ching Ko, Cheng-Hui Lin, Ying-An Chen, Yu-Ray Chen
PURPOSE: With the advance of image fusion techniques, the creation of 3-dimensional (3D) virtual head and 3D surgical simulations has provided previews of surgical procedures. The aim of this study was to investigate the surgical outcomes in patients receiving orthognathic surgery (OGS) with the guidance of 3D computer-assisted surgical simulation. PATIENTS AND METHODS: The study included 34 consecutive patients (15 men and 19 women; age, 18.1 to 33.0 yr) with skeletal Class III facial asymmetry who underwent bimaxillary OGS...
September 19, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29023296/variability-in-minimally-invasive-surgery-for-sagittal-craniosynostosis
#19
Catharine B Garland, Liliana Camison, Shirley M Dong, Rick S Mai, Joseph E Losee, Jesse A Goldstein
Minimally invasive approaches to the surgical correction of sagittal craniosynostosis are gaining favor as an alternative to open cranial vault remodeling. In this systematic review, the reviewers evaluate the variability in described surgical techniques for minimally invasive correction of sagittal craniosynostosis. Articles were selected based on predetermined inclusion and exclusion criteria from an online literature search through PubMed, EMBASE, and the Cochrane library. Extracted data included the incisions, method of dissection, osteotomies performed, and type of force therapy utilized...
October 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28991759/the-importance-of-perioperative-prophylaxis-with-cefuroxime-or-ceftriaxone-in-the-surgical-site-infections-prevention-after-cranial-and-spinal-neurosurgical-procedures
#20
Aleksandra Dimovska-Gavrilovska, Aleksandar Chaparoski, Andreja Gavrilovski, Zvonko Milenkovikj
Introduction Surgical site infections pose a significant problem in the treatment of neurosurgical procedures, regardless of the application of perioperative prophylaxis with systemic antibiotics. The infection rate in these procedures ranges from less than 1% to above 15%. Different antibiotics and administration regimes have been used in the perioperative prophylaxis so far, and there are numerous comparative studies regarding their efficiency, however, it is generally indicated that the choice thereof should be based on information and local specifics connected to the most probable bacterial causers, which would possibly contaminate the surgical site and cause infection, and moreover, the mandatory compliance with the principles of providing adequate concentration of the drug at the time of the anticipated contamination...
September 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
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