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Endoscopic skull base

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https://www.readbyqxmd.com/read/29239925/the-validity-of-training-endoscopic-sinus-and-skull-base-surgery-techniques-on-the-experimental-head-model
#1
Ranko Mladina, Neven Skitarelić, Cemal Cingi, Lei Chen, Nuray Bayar Muluk
OBJECTIVES: The aim of this study was to better understand the usual learning curve in acquiring endonasal endoscopic sinus and skull base surgery (ESSBS) techniques during the novice training on the lamb's head model. METHODS: Ten novices were asked to perform 10 bilateral dissections on the particular lamb's head each. The dissections were uniform, consisted of 10 well-defined steps, beginning from the simple removal of the inferior turbinate, and ending with more complicated procedures like cerebrospinal fluid leak repair, Draf 3 procedure for the frontal sinus and elevation of the nasal septal flap...
December 12, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29237926/endoscopic-approach-to-remove-intra-extracranial-tumors-in-various-skull-base-regions-10-year-experience-of-a-single-center
#2
Qiu-Hang Zhang, Zhen-Lin Wang, Hong-Chuan Guo, Feng Kong, Bo Yan, Ming-Chu Li, Ge Chen, Jian-Tao Liang, Yu-Hai Bao, Feng Ling
BACKGROUND: Some problems have been found in the usually adopted combined approach for the removal of intra-extracranial tumors in skull base. Herein, we described a pure endoscopic transnasal or transoral approach (ETA) for the removal of intra-extracranial tumors in various skull base regions. METHODS: Retrospectively, clinical data, major surgical complications, pre- and postoperative images, and follow-up information of a series of 85 patients with intra-extracranial tumors in various skull base regions who were treated by surgery via ETA in our skull base center during the past 10 years were reviewed and analyzed...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29236649/deadly-sphenoid-fungus-isolated-sphenoid-invasive-fungal-rhinosinusitis-a-case-report
#3
Jason E Gilde, Christopher C Xiao, Victoria A Epstein, Jonathan Liang
INTRODUCTION: Acute invasive fungal rhinosinusitis (AIFRS) is a potentially fatal infection, usually affecting immunocompromised patients. Isolated sphenoid sinus involvement is rare and has been reported in only a few cases. We discuss the clinical characteristics, histopathologic features, and differential diagnosis of AIFRS of the sphenoid sinus. CASE PRESENTATION: A 57-year-old man with a history of refractory non-Hodgkin lymphoma and neutropenia presented with a 1-week duration of left-sided headache and ipsilateral cheek paresthesia...
2017: Permanente Journal
https://www.readbyqxmd.com/read/29236280/intracranial-abscess-formation-following-sphenoid-sinus-occlusion-with-nasoseptal-flap-skull-base-reconstruction-a-cautionary-tale
#4
George S Tarasidis, Jeremiah A Alt, Richard R Orlandi
The formation of an intracranial abscess secondary to sphenoid sinus occlusion after nasoseptal flap skull base reconstruction has not been previously described. We report such a case that occurred at our institution in a 23-year-old man who underwent flap reconstruction for a cerebrospinal fluid leak. We determined that occlusion of the sphenoid sinus outflow might have played a role in this complication. The patient was treated via a combined surgical and medical approach that entailed a bur-hole craniotomy and endoscopic debridement followed by administration of an intravenous antibiotic...
December 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29226334/early-stage-olfactory-neuroblastoma-and-the-impact-of-resecting-dura-and-olfactory-bulb
#5
Ashley C Mays, Diana Bell, Renata Ferrarotto, Jack Phan, Dianna Roberts, Clifton D Fuller, Steven J Frank, Shaan M Raza, Michael E Kupferman, Franco DeMonte, Ehab Y Hanna, Shirley Y Su
OBJECTIVE: Compare outcomes of patients with olfactory neuroblastoma (ONB) without skull base involvement treated with and without resection of the dura and olfactory bulb. METHODS: Retrospective review of ONB patients treated from 1992 to 2013 at the MD Anderson Cancer Center (The University of Texas, Houston, Texas, U.S.A.). Primary outcomes were overall and disease-free survival. RESULTS: Thirty-five patients were identified. Most patients had Kadish A/B...
December 11, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29210717/quality-of-life-outcomes-after-endoscopic-approaches-to-intracranial-tumors
#6
Madeleine R Schaberg
PURPOSE OF REVIEW: To review the literature on quality of life (QOL) in endoscopic approaches to anterior and central intracranial skull-base disease. As endoscopic surgical techniques have gained widespread acceptance and complications and morbidity remain low and comparable with microscopic and open approaches, a shift to focusing on patients' perception of their own well being as an important outcome parameter has been made. In addition to the traditional measurements of surgical outcomes (extent of resection, recurrence rate, morbidity, survival, and complication rate), the success of a surgery can now be assessed using QOL measures...
November 27, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29209853/3d-endoscopic-ear-surgery-a-clinical-pilot-study
#7
Daniele Bernardeschi, Ghizlene Lahlou, Daniele De Seta, Francesca Yoshie Russo, Isabelle Mosnier, Olivier Sterkers
OBJECTIVE: To evaluate the feasibility and efficacy of a new high-resolution 3D endoscope in endoscopic ear and lateral skull base surgery. METHODS: Eight patients, five women and three men, were included in this clinical pilot prospective study. Their age was 38 ± 17.3 years (mean ± SD, range 17-54 years). The right side was involved in five cases, and the left side in three cases. There were three cases of chronic otitis, one case of cholesteatoma of the external auditory canal, one case of otosclerosis, one case of cochlear implant surgery, and two cases of stage 2 vestibular schwannoma operated on with a retrosigmoid approach to preserve hearing...
December 5, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29194274/a-stratified-algorithm-for-skull-base-reconstruction-with-endoscopic-endonasal-approach
#8
Zhen Li, Tao Ji, Guo-Dong Huang, Jian Guo, Ji-Hu Yang, Wei-Ping Li
The authors presented our institutional experience with skull base reconstruction techniques and developed a stratified algorithm for different causes of cerebrospinal fluid (CSF) leak. This is a retrospective review of patients who were diagnosed as CSF leak treated with skull base reconstruction or who underwent endoscopic transsphenoidal surgery for sellar and parasellar lesions at our department from August 2012 to April 2017. The authors totally identified 57 (59 operations in total) patients who were divided into 3 groups according to the causes of CSF leak and different reconstruction techniques...
November 20, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29194254/anterior-skull-base-tumors-the-role-of-transfacial-approaches-in-the-endoscopic-era
#9
Leandro Infantini Dini, Gustavo Rassier Isolan, Evelise Flores, Eduardo Madruga Lombardo, Cláiton Heitz
The basis of craniofacial tumor surgery is complete surgical extirpation, preferably en bloc or with free borders. Craniofacial techniques are the gold standard and primary strategies in the treatment of anterior skull base tumors. In the last decade, the reports favoring results of endoscopic techniques have increased. One could conclude that the classical transfacial approaches might become useless, but, in fact, there is little research comparing these techniques.In this article, the authors present their experience with combined craniofacial resection of anterior craniofacial skull base tumors in 9 consecutive patients between January 2013 and July 2015...
November 29, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29174229/repair-of-cerebrospinal-fluid-leakage-using-a-transfrontal-radial-adipofascial-flap-an-individual-approach-supported-by-3d-printing-for-surgical-planning
#10
Stefan Grau, Stephanie Kellermann, Michael Faust, Moritz Perrech, Dirk Beutner, Alexander Drzezga, Joachim Zöller
BACKGROUND: Leakage of cerebrospinal fluid (CSF) due to large prolactinomas represents a complex issue. Due to limited anatomical space, often multiple leakage sites and scarce locally available tissue for repair, surgical possibilities are limited. We report an initial case of using a radial fasciocutaneous flap applied sub-frontally to cover a large skull base defect, supported by preoperative 3D-printing for surgical planning. CASE DESCRIPTION: A 29 year old female developed severe nuchal pain which was caused by destruction of large parts of her skull base by a prolactinoma...
November 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29166425/anatomy-of-the-sphenopalatine-artery-and-its-implications-for-transnasal-neurosurgery
#11
M Eordogh, A Grimm, I Gawish, L Patonay, R Reisch, H R Briner, G Baksa
BACKGROUND: The knowledge of sinonasal vasculature is inevitable in transnasal neurosurgery. We performed an anatomical study on the sphenopalatine artery from the perspective of skull base procedures. METHODOLOGY: To analyse the anatomical landmarks of the sphenopalatine artery, arterial skull corrosion casts (26 head halves) underwent endoscopic transnasal phantom surgery. Furthermore, we performed microsurgical dissection on formaldehyde-fixated cadavers with arterial perfusion (14 head halves) as well as studied Cone Beam CT-scans of anonymised patients and cadavers (115 head sides)...
November 22, 2017: Rhinology
https://www.readbyqxmd.com/read/29134171/endoscopic-endonasal-repair-of-internal-carotid-artery-injury-during-endoscopic-endonasal-surgery
#12
Irit Duek, Gill E Sviri, Moran Amit, Ziv Gil
Background  Injury to the cavernous portion of the internal carotid artery (ICA) during endoscopic skull base surgery is a well-recognized rare complication that can be associated with high rates of morbidity and mortality. Many techniques have been suggested to manage ICA injury with varying degrees of success. Objectives  We provide a detailed technical description of an operative technique for endoscopic management of carotid artery injury. Methods  A case of ICA injury during endoscopic skull base surgery is presented...
October 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/29134165/an-innovate-robotic-endoscope-guidance-system-for-transnasal-sinus-and-skull-base-surgery-proof-of-concept
#13
D T Friedrich, F Sommer, M O Scheithauer, J Greve, T K Hoffmann, P J Schuler
Objective  Advanced transnasal sinus and skull base surgery remains a challenging discipline for head and neck surgeons. Restricted access and space for instrumentation can impede advanced interventions. Thus, we present the combination of an innovative robotic endoscope guidance system and a specific endoscope with adjustable viewing angle to facilitate transnasal surgery in a human cadaver model. Materials and Methods  The applicability of the robotic endoscope guidance system with custom foot pedal controller was tested for advanced transnasal surgery on a fresh frozen human cadaver head...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29134164/visual-outcomes-after-endoscopic-pituitary-surgery-in-patients-presenting-with-preoperative-visual-deficits
#14
Felipe Fredes, Gabriel Undurraga, Pablo Rojas, Felipe Constanzo, Carolina Lazcano, Jaime Pinto, Thomas Schmidt
Introduction  Pituitary adenomas represent 15% of primary brain tumors. Visual disturbance is a common clinical manifestation of these neoplasms due, among other factors, to local mass effect on the optic system. Objective  To evaluate changes of the visual fields in patients undergoing endoscopic endonasal approach (EEA) for pituitary adenomas and to find predictive factors for successful visual field outcome. Material and Methods  This is a cross-sectional study. A review was conducted of medical records of consecutive patients with tumors of the sellar region undergoing EEA between January 2008 and December 2012 at the Skull Base Unit of Guillermo Grant Benavente Hospital, University of Concepción, Concepción, Chile, and who had undergone pre- and postoperative visual field evaluation...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29127655/the-endoscopic-endonasal-approach-is-not-superior-to-the-microscopic-transcranial-approach-for-anterior-skull-base-meningiomas-a-meta-analysis
#15
Ivo S Muskens, Vanessa Briceno, Tom L Ouwehand, Joseph P Castlen, William B Gormley, Linda S Aglio, Amir H Zamanipoor Najafabadi, Wouter R van Furth, Timothy R Smith, Rania A Mekary, Marike L D Broekman
OBJECT: In the past decade, the endonasal transsphenoidal approach (eTSA) has become an alternative to the microsurgical transcranial approach (mTCA) for tuberculum sellae meningiomas (TSMs) and olfactory groove meningiomas (OGMs). The aim of this meta-analysis was to evaluate which approach offered the best surgical outcomes. METHODS: A systematic review of the literature from 2004 and meta-analysis were conducted in accordance with the PRISMA guidelines. Pooled incidence was calculated for gross total resection (GTR), visual improvement, cerebrospinal fluid (CSF) leak, intraoperative arterial injury, and mortality, comparing eTSA and mTCA, with p-interaction values...
November 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29125446/suprasellar-and-recurrent-pediatric-craniopharyngiomas-expanding-indications-for-the-extended-endoscopic-transsphenoidal-approach
#16
Andrew F Alalade, Elizabeth Ogando-Rivas, Jerome Boatey, Mark M Souweidane, Vijay K Anand, Jeffrey P Greenfield, Theodore H Schwartz
OBJECTIVE The expanded endonasal endoscopic transsphenoidal approach has become increasingly used for craniopharyngioma surgery in the pediatric population, but questions still persist regarding its utility in younger children, in recurrent and irradiated tumors, and in masses primarily located in the suprasellar region. The narrow corridor, incomplete pneumatization, and fear of hypothalamic injury have traditionally relegated this approach to application in older children with mostly cystic craniopharyngiomas centered in the sella...
November 10, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29122086/endonasal-endoscopic-management-of-frontal-sinus-cerebrospinal-fluid-leak
#17
Javaneh Jahanshahi, Mehdi Zeinalizadeh, Hasan Reza Mohammadi, Seyed Mousa Sadrehosseini
BACKGROUND: A frontal sinus leak is uncommon and is seen in ∼15% of cases of patients with cerebrospinal fluid (CSF) rhinorrhea. Now, endonasal endoscopic techniques have been reported to reconstruct skull base defects in the frontal sinus with a favorable outcome. OBJECTIVE: To review our experience in the repair of frontal sinus CSF leaks through an endonasal endoscopic approach. METHODS: Twenty-four patients with a frontal sinus leak who underwent endonasal endoscopic repair entered the study...
November 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29109836/pedicle-flaps-contribute-to-endoscopic-skull-base-surgery-and-facial-soft-tissue-repair-the-diuturnity-of-johannes-fredericus-samuel-esser-1877-1946
#18
Richard A Pollock, M Douglas Gossman
Pedicle flaps based on the external maxillary (facial) artery were introduced during the World War I, precisely a century ago. Today they remain effective tools in facial soft-tissue repair. Recently, pedicle flaps based on the internal maxillary (sphenopalatine) artery have been chosen to reliably close dural defects after endoscopic skull-base surgery. Pedicle flaps, "biologic" to the extent they are based on a defined arterial blood supply, are the lasting contributions-the diuturnity-of Johannes ("Jan") Fredericus Samuel Esser (1877-1946) of Leiden, Holland, and Chicago (IL)...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29105367/early-experience-with-a-patient-specific-virtual-surgical-simulation-for-rehearsal-of-endoscopic-skull-base-surgery
#19
Tae-Bin Won, Peter Hwang, Jae Hyun Lim, Sung-Woo Cho, Sun Ha Paek, Steven Losorelli, Yona Vaisbuch, Sonny Chan, Kenneth Salisbury, Nikolas H Blevins
BACKGROUND: With the help of contemporary computer technology it is possible to create a virtual surgical environment (VSE) for training. This article describes a patient-specific virtual rhinologic surgical simulation platform that supports rehearsal of endoscopic skull-base surgery. We also share our early experience with select cases. METHODS: A rhinologic VSE was developed, featuring a highly efficient direct 3-dimensional (3D) volume renderer with simultaneous stereoscopic feedback during surgical manipulation of the virtual anatomy, as well as high-fidelity haptic feedback...
November 3, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29104156/endoscopic-approach-to-clival-chordomas-the-northwestern-experience
#20
Rudy J Rahme, Omar M Arnaout, Olabisi R Sanusi, Kartik Kesavabhotla, James P Chandler
INTRODUCTION: Chordomas are rare primary bone tumors with a low-grade histology but an aggressive clinical behavior characterized by local invasion and recurrence. When occurring in the skull base, their treatment is limited by proximity to critical neurovascular structures. Open surgical approaches can carry high morbidity making the development of alternative approaches desirable. We describe our experience with endoscopic endonasal approaches to clival chordomas over 13 years. MATERIALS AND METHOD: We performed a retrospective chart review of patients diagnosed with clival chordomas and treated with an endoscopic endonasal approach between the years 2003 and 2015 at Northwestern Memorial Hospital...
November 2, 2017: World Neurosurgery
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