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endoscopic endonasal

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https://www.readbyqxmd.com/read/29145656/refining-operative-strategies-for-optic-nerve-decompression-a-morphometric-analysis-of-transcranial-and-endoscopic-endonasal-techniques-using-clinical-parameters
#1
Steven L Gogela, Lee A Zimmer, Jeffrey T Keller, Norberto Andaluz
BACKGROUND: Various approaches can be considered for decompression of the intracanalicular optic nerve. Although clinical experience has been reported, no quantitative study has yet compared the extent of decompression achieved by an endoscopic endonasal versus transcranial approach. OBJECTIVE: Toward this aim, our morphometric analysis compared both approaches by quantifying the circumferential degree of optic canal decompression that is possible before any meningeal violation, which would result in cerebrospinal fluid (CSF) leak...
May 3, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29142773/suprasellar-and-third-ventricular-cavernous-malformation-lessons-learned-in-differential-diagnosis-and-surgical-planning
#2
Kay O Kulason, Julia R Schneider, Ralph Rahme, Fanni Ratzon, Todd A Anderson, Deborah R Shatzkes, Christopher G Filippi, Peter D Costantino, David J Langer, John A Boockvar
Background: While craniopharyngiomas (CPs) are the most common cystic suprasellar lesions in adults, cavernous malformations (CMs) only exceptionally occur in this location and are seldom considered in the differential diagnosis of such lesions. However, unlike CPs, suprasellar CMs are not typically approached via an endoscopic endonasal approach. Case Description: We present a unique clinical case of suprasellar and third ventricular CM mimicking a CP, posing a major decision-making dilemma at the levels of both preoperative diagnosis and surgical planning...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29141295/-endonasal-endoscopic-approach-in-the-extraction-of-intracranial-and-intraorbital-foreign-body-one-case-report
#3
Y Jiang, S N Zhang, Y Q Wang, Z R Qin, B Wei, L G Yu, M Chen, L J Zhao, L L Li
No abstract text is available yet for this article.
November 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29134171/endoscopic-endonasal-repair-of-internal-carotid-artery-injury-during-endoscopic-endonasal-surgery
#4
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/29134164/visual-outcomes-after-endoscopic-pituitary-surgery-in-patients-presenting-with-preoperative-visual-deficits
#5
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/29134161/pneumatization-patterns-of-the-petrous-apex-and-lateral-sphenoid-recess
#6
Alexander Malone, Margherita Bruni, Robert Wong, Mark Tabor, K Paul Boyev
Introduction  The petrous apex poses a challenge for surgical intervention due to poor access. As intraoperative image guidance and surgical instrumentation improve, newer endoscopic approaches are increasingly favored. This study aims to provide normative data on the anatomy of the lateral sphenoid sinus recess and petrous apex. These normative data could assist in determining the efficacy of a transnasal transsphenoidal approach to lesions of the anteroinferior petrous apex. Methods  This is a retrospective study investigating normative data on all maxillofacial computed tomography (CT) scans performed at a level I trauma center over a 6-month period...
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
#7
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
#8
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
#9
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/29120512/endoscopic-endonasal-surgery-for-pituitary-adenomas-extending-to-the-oculomotor-cistern
#10
Masaaki Taniguchi, Tomoaki Nakai, Hidehito Kimura, Yuichi Fujita, Yoichi Uozumi, Masaaki Kohta, Eiji Kohmura
BACKGROUND: Extension of a pituitary adenoma to the oculomotor cistern harbors the risk of oculomotor nerve impairment and further extension into the interpeduncular cistern. The role of endoscopic endonasal surgery for those lesions was investigated. METHODS: The medical records were retrospectively analyzed. Attention was paid to the oculomotor nerve function and removal rate of the tumor within the oculomotor and interpeduncular cisterns. RESULTS: Six patients were eligible for the study, including 2 with oculomotor nerve palsy...
November 9, 2017: Head & Neck
https://www.readbyqxmd.com/read/29117409/development-of-a-perfusion-based-cadaveric-simulation-model-integrated-into-neurosurgical-training-feasibility-based-on-reconstitution-of-vascular-and-cerebrospinal-fluid-systems
#11
Gabriel Zada, Joshua Bakhsheshian, Martin Pham, Mike Minneti, Eisha Christian, Jesse Winer, Aaron Robison, Bozena Wrobel, Jonathan Russin, William J Mack, Steven Giannotta
BACKGROUND: Novel methodologies providing realistic simulation of the neurosurgical operating room environment are currently needed, particularly for highly subspecialized operations with steep learning curves, high-risk profiles, and demands for advanced psychomotor skills. OBJECTIVE: To describe the development of a curriculum for using perfusion-based cadaveric simulation models in a "Mock Operating Room" for neurosurgical procedures. METHODS: At the USC Keck School of Medicine Fresh Tissue Dissection Laboratory between 2012 and 2016, 43 cadaveric specimens underwent cannulation of the femoral or carotid artery and artificial perfusion of the arterial system, and/or cannulation of the intradural cervical spine for intrathecal reconstitution of the cerebrospinal fluid (CSF) system...
May 13, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29114939/three-dimensional-endoscopy-for-endoscopic-salvage-nasopharyngectomy-preliminary-report-of-experience
#12
Jimmy Yu Wai Chan, William Ignace Wei
BACKGROUND: Prospective, observational study to assess the efficacy of salvage nasopharyngectomy for recurrent nasopharyngeal carcinoma (NPC) via the endoscopic endonasal approach using a three-dimensional (3D) high-definition endoscopic system. METHODS: Between 2016 and 2017, 30 patients with recurrent NPC were recruited. Patient demographics, tumor characteristics, and perioperative data were recorded. Instrument ergonomics and perceived advantages were assessed by the operating, assisting, and observing surgeons...
November 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29114890/total-septal-perforation-repair-with-a-pericranial-flap-radio-anatomical-and-clinical-findings
#13
Isam Alobid, Cristóbal Langdon, Mauricio López-Chacon, Joaquim Enseñat, Ricardo Carrau, Manuel Bernal-Sprekelsen, Alfonso Santamaría
OBJECTIVES/HYPOTHESIS: Endonasal surgeries are the primary cause of septal perforation (SP). However, trauma, inflammation, infections, neoplasms, or abuse of inhaled drugs can also cause SP. Septal repair is indicated in patients who experience nasal obstruction, crusting, intermittent epistaxis, purulent discharge, or nasal whistling and in those who fail conservative treatment. Multiple approaches have been suggested to repair the SP; however, none has been universally adopted. This study explores the feasibility of repairing a total SP using the pericranial flap (PCF)...
November 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29114314/endoscopic-three-surgeon-six-handed-transorbital-transnasal-technique-for-excision-of-juvenile-nasopharygeal-angiofibroma-new-frontier-explored
#14
Trichy Narayanan Janakiram, Palak Parekh, Hanish Haneefa, Sivaswamy Karthik Prasad
Endoscopic endonasal transorbital approach has been described for the removal of orbital lesions located anteromedially in temporal fossa. The same has been observed to be a versatile approach to the anterior and middle cranial fossa only in laboratory studies. This is the first clinical report of combined transorbital transnasal endoscopic approach to the cavernous sinus, superior orbital fissure, and middle cranial fossa in a case of recurrent nasopharyngeal angiofibroma using the three-surgeon six-handed technique...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29104156/endoscopic-approach-to-clival-chordomas-the-northwestern-experience
#15
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
https://www.readbyqxmd.com/read/29099299/perfusion-based-human-cadaveric-specimen-as-a-simulation-training-model-in-repairing-cerebrospinal-fluid-leaks-during-endoscopic-endonasal-skull-base-surgery
#16
Eisha A Christian, Joshua Bakhsheshian, Ben A Strickland, Vance L Fredrickson, Ian A Buchanan, Martin H Pham, Andrew Cervantes, Michael Minneti, Bozena B Wrobel, Steven Giannotta, Gabriel Zada
OBJECTIVE Competency in endoscopic endonasal approaches (EEAs) to repair high-flow cerebrospinal fluid (CSF) leaks is an essential component of the neurosurgical training process. The objective of this study was to demonstrate the feasibility of a simulation model for EEA repair of anterior skull base CSF leaks. METHODS Human cadaveric specimens were utilized with a perfusion system to simulate a high-flow CSF leak. Neurological surgery residents (postgraduate year 3 or greater) performed a standard EEA to repair a CSF leak using a combination of fat, fascia lata, and pedicled nasoseptal flaps...
November 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29095708/updates-in-the-management-of-sinonasal-mucosal-melanoma
#17
Meghan M Crippen, Suat Kılıç, Jean A Eloy
PURPOSE OF REVIEW: Sinonasal mucosal melanoma (SNMM) is an aggressive cancer with a poor prognosis. Although there is significant study surrounding the treatment of sinonasal malignancies and cutaneous melanomas, the rarity of this tumor has largely precluded robust outcomes analyses. The authors of this review seek to provide an overview of the recent literature related to the treatment of SNMM with added context from our institutional experience with this disease. RECENT FINDINGS: In the surgical management of sinonasal malignancies and SNMM specifically, resection via endoscopic endonasal technique appears to offer comparable oncologic outcomes versus an open approach...
October 31, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29084008/delayed-complications-from-expanded-endonasal-surgery-for-intracranial-tumors
#18
Mathew N Geltzeiler, Eric W Wang
PURPOSE OF REVIEW: Delayed complications after endoscopic endonasal approaches to the skull base, defined as complications greater than 1 month postoperatively, are uncommon. These complications are divided into categories including sinonasal, neuroanatomic, endocrine and vascular. This review highlights the most up-to-date advancements and reviews the management of delayed complications for skull base patients. RECENT FINDINGS: Over the last 10 years, the field of endoscopic endonasal skull base surgery has expanded with new data highlighting the long-term patient outcomes...
October 27, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29079259/endoscopic-endonasal-transsphenoidal-drainage-of-a-spontaneous-candida-glabrata-pituitary-abscess-case-report-intraoperative-video
#19
Ben A Strickland, Martin Pham, Joshua Bakhsheshian, John Carmichael, Martin Weiss, Gabriel Zada
Noniatrogenic pituitary abscesses remain a rare clinical entity, and are the indication for surgery in <1% of transsphenoidal approaches. Correct diagnosis of this rare entity is often delayed. Without timely treatment, morbidity and mortality are high. Of the 200 cases reported, less than half have identified a causative organism. We report the second case of a pituitary abscess caused by Candida species, and further provide intraoperative video of endoscopic management of this pathology. A 33-year-old woman presented with headache, hypopituitarism, and vision loss in the setting of diabetic ketoacidosis, and was found to have multiple abscesses in the liver, lung, kidney, and uterus...
October 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29076464/-extended-endoscopic-endonasal-posterior-transclival-approach-to-tumors-of-the-clival-region-and-ventral-posterior-cranial-fossa-part-2-topographic-and-anatomical-aspects-and-surgical-technique
#20
A N Shkarubo, K V Koval', G F Dobrovol'skiy, M A Shkarubo, G A Polev, D N Andreev, I V Chernov, V V Karnaukhov, O A Gadzhieva
PURPOSE: to present the main topographic and anatomical features of the clivus and adjacent structures for improving and optimizing the extended endoscopic transnasal posterior (transclival) approach in removal of clival and ventral posterior cranial fossa lesions. MATERIAL AND METHODS: We performed a topographic and anatomical study of 25 cadaver heads, the vascular bed of which was filled with colored silicone using the original technique for visualizing the bed features and individual variability...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
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