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Endoscopic skull base

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https://www.readbyqxmd.com/read/28524124/-endoscopic-endonasal-diagnosis-and-treatment-of-skull-base-meningoencephalocele
#1
D N Kapitanov, E V Shelesko, A A Potapov, A D Kravchuk, D N Zinkevich, M V Nersesyan, L A Satanin, A V Sakharov, G V Danilov
PURPOSE: The study purpose was to determine the successful outcome rate of endoscopic endonasal reconstruction of skull base CSF fistulas with removal of meningocele as well as analyze disease relapses. The second purpose of the study was to describe the treatment outcomes, depending on the type, location, and size of meningocele as well as on a technique used to reconstruct the skull base defect. MATERIAL AND METHODS: Three hundred and eleven patients diagnosed with cerebrospinal fluid (CSF) rhinorrhea who underwent surgery at the Burdenko Neurosurgical Institute in the period between 2007 and 2014 were retrospectively analyzed...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28523088/treatment-of-a-large-traumatic-encephalocele-with-titanium-mesh
#2
Alan Motta do Canto, Manuela Monteiro Pinotti, Fernando Alves Maciel, Alexandre Bossi Todeschini, Guilherme Brasileiro Aguiar, Ronaldo Rodrigues de Freitas
Encephalocele is defined as protrusion of cranial contents beyond the normal confines of the skull. Although most encephalocele cases have a congenital etiology, fractures of the skull base can cause traumatic encephalocele. In most encephalocele cases, the bone defect presents reduced dimensions and the endoscopic treatment is generally performed to reconstruct the area using mucosal and/or fat grafts. This article sought to report on a rare case of traumatic encephalocele associated with an extensive defect of the anterior skull base...
June 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28521036/a-novel-approach-of-navigation-assisted-flexible-neuroendoscopy
#3
Jaime G Torres-Corzo, Leonardo Rangel-Castilla, Mario Alberto Islas-Aguilar, Roberto Rodríguez-Della Vecchia
BACKGROUND AND IMPORTANCE: Neuronavigation-assisted endoscopy is commonly used for skull base and intraventricular surgery. Flexible neuroendoscopy offers certain advantages over rigid endoscopy; however, a major disadvantage of the flexible endoscope has been easy disorientation in the flexed position. Neuronavigation-assisted flexible neuroendoscopy was not available until now. This is the first report of the use of navigation-assisted flexible neuroendoscopy in a patient with hydrocephalus...
May 18, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28516968/preliminary-experience-with-4k-ultra-high-definition-endoscope-analysis-of-pros-and-cons-in-skull-base-surgery
#4
M Rigante, G La Rocca, L Lauretti, G Q D'Alessandris, A Mangiola, C Anile, A Olivi, G Paludetti
During the last two decades endoscopic skull base surgery observed a continuous technical and technological development 3D endoscopy and ultra High Definition (HD) endoscopy have provided great advances in terms of visualisation and spatial resolution. Ultra-high definition (UHD) 4K systems, recently introduced in the clinical practice, will shape next steps forward especially in skull base surgery field. Patients were operated on through transnasal transsphenoidal endoscopic approaches performed using Olympus NBI 4K UHD endoscope with a 4 mm 0° Ultra Telescope, 300 W xenon lamp (CLV-S400) predisposed for narrow band imaging (NBI) technology connected through a camera head to a high-quality control unit (OTV-S400 - VISERA 4K UHD) (Olympus Corporation, Tokyo, Japan)...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28516966/expanded-transcanal-transpromontorial-approach-to-the-internal-auditory-canal-and-cerebellopontine-angle-a-cadaveric-study
#5
L Presutti, M Bonali, D Marchioni, G Pavesi, A Feletti, L Anschuetz, M Alicandri-Ciufelli
The aim of this paper is to describe and evaluate the feasibility of an expanded endoscopic transcanal transpromotorial approach (ExpTTA) to the internal auditory canal and the cerebellopontine angle. To this end, we performed a cadaveric dissection study in September 2015. In total, 2 heads (4 sides) were dissected focusing on anatomical landmarks and surgical feasibility. Data from dissections were reviewed and analysed for further consideration. In all 4 sides of the cadavers the procedure was feasible. In all cadavers, it was necessary to extensively drill the temporo-mandibular joint and to calibrate the external ear canal to allow adequate room to manoeuver the instruments and optics and to comfortably access the cerebellopontine angle...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28512043/endoscopic-assisted-supraorbital-keyhole-approach-or-endoscopic-endonasal-approach-in-case-of-tuberculum-sellae-meningioma-which-surgical-route-should-be-favoured
#6
Stefan Linsler, Gerrit Fischer, Volodymyr Skliarenko, Axel Stadie, Joachim Oertel
OBJECTIVE: Keyhole approaches are currently under investigation for skull base tumor surgery. They are expected to have a low complication rate with the same successful resection rate compared to endoscopic endonasal procedures. In this study, the authors compare their current series of tuberculum sellae meningiomas resected via an endoscopic endonasal or microsurgical supraorbital keyhole approach. METHODS: Between 2011 and 2016, 16 patients were treated using the supraorbital keyhole procedure and 6 patients received an endoscopic endonasal procedure...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28511976/fertility-pregnancy-and-prolactinoma-a-survey-of-pituitary-surgeons-view-and-review-of-the-literature
#7
Walter C Jean, Daniel R Felbaum
OBJECTIVE: Pituitary surgeons frequently encounter female prolactinoma patients seeking treatment to restore fertility. Current medical guidelines recommend using dopamine agonist (DA) for this, but for fetal safety, DA should stop upon pregnancy confirmation. The probability that prolactinoma may grow during pregnancy makes this last recommendation imperfect. With the advances in endoscopic surgery, we queried the potential role for surgery in these infertile patients, who may be ambivalent about both stopping and continuing DA while pregnant...
May 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28502687/the-onodi-cell-an-anatomical-illustration
#8
Ali Tayebi Meybodi, Vera Vigo, Arnau Benet
This anatomical image demonstrates the sphenoethmoidal (Onodi) cell (a variant of the paranasal sinuses), the identification of which is critical to prevent neurovascular injury during endoscopic approaches to the sella and adjacent regions of the skull base.
May 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28498268/transcanal-endoscopic-ear-surgery-for-excision-of-a-facial-nerve-venous-malformation-with-interposition-nerve-grafting-a-case-report
#9
Cameron C Wick, Mark Sakai, Timothy E Richardson, Brandon Isaacson
OBJECTIVE: To illustrate a novel approach for the surgical management of a venous malformation of the facial nerve, including interposition nerve grafting, via an exclusively transcanal endoscopic ear surgery (TEES) approach. PATIENT: Thirty nine-year-old woman with a preoperative House-Brackmann (HB) grade IV facial paresis secondary to a facial nerve tumor. INTERVENTION(S): Surgical excision and interposition nerve graft via a transcanal endoscopic approach...
May 11, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28490407/the-application-of-a-free-nasal-floor-mucoperiosteal-graft-in-endoscopic-sinus-surgery
#10
Anali Dadgostar, Christopher Okpaleke, Fahad Al-Asousi, Amin Javer
BACKGROUND: Numerous reconstructive techniques and materials have been reported for repair of skull base defects, cerebrospinal fluid (CSF) leaks, and coverage of denuded bone, including pedicled vascularized flaps and free mucosal grafts. OBJECTIVE: This study described our technique of harvesting and transferring a free nasal floor mucoperiosteal graft and discussed our experience with the application of this technique. METHODS: A retrospective review of 19 patients (mean age, 53...
May 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28490405/utility-of-early-postoperative-imaging-after-combined-endoscopic-and-open-ventral-skull-base-surgery
#11
Zachary S Mendelson, Kristen A Echanique, Meghan M Crippen, Alejandro Vazquez, James K Liu, Jean Anderson Eloy
PURPOSE: Immediate postoperative imaging is frequently obtained after combined skull base surgery (SBS) with endoscopic endonasal and open transcranial approaches. The importance of early postoperative imaging for detecting complications in these patients is still debatable. In this study, we investigated the clinical utility of early postoperative imaging after combined SBS for determination of postoperative complications. METHODS: A retrospective chart analysis of 21 cases of combined SBS between 2009 and 2015 was performed...
May 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28490402/international-frontal-sinus-anatomy-classification-and-anatomic-predictors-of-low-lying-anterior-ethmoidal-arteries
#12
Phayvanh P Sjogren, Rajendra Waghela, Shaelene Ashby, Richard H Wiggins, Richard R Orlandi, Jeremiah A Alt
BACKGROUND: The International Frontal Sinus Anatomy Classification (IFAC) was introduced to more accurately characterize ethmoid and frontal sinus pneumatization patterns. The prevalence of IFAC cells and their anatomic associations have not been described. OBJECTIVE: The goal was to examine the prevalence of IFAC cells and determine radiologic features associated with a low-lying anterior ethmoidal artery (LAEA). METHODS: Imaging of adult patients who underwent computed tomographies from January 2015 to March 2016 were retrospectively reviewed by using the IFAC classification...
May 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28490159/neuroendoscopy-current-and-future-perspectives
#13
REVIEW
Kyu Won Shim, Eun Kyung Park, Dong-Seok Kim, Joong-Uhn Choi
Neuroendoscopic surgery is performed because it causes minimal damage to normal structures, carries a lower rate of complications, and achieves excellent outcomes. Surgeons using an endoscope and related instruments can perform complex operations through very small incisions, which is especially useful for minimally invasive procedures for the brain and spine. Neuroendoscopic surgery is now performed in cases of obstructive hydrocephalus, various intraventricular lesions, hypothalamic hamartomas, craniosynostosis, skull base tumors, and spinal lesions...
May 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28481397/endoscopic-endonasal-cerebrospinal-fluid-leak-repair-on-the-ventral-midline-skull-base-a-single-neurosurgical-center-experience
#14
Cihan Isler, Merdin Lyutviev Ahmedov, Mehmet Yigit Akgun, Baris Kucukyuruk, Nurperi Gazioglu, Galip Sanus, Necmettin Tanriover
AIM: The aim of this study was to present the results of endoscopic endonasal repair of ventral midline skull base cerebrospinal fluid (CSF) leak (VMSBL) at our institution and to discuss the technique and results from a neurosurgical perspective. MATERIAL AND METHODS: A retrospective analysis of all VMSBL cases that underwent endoscopic endonasal skull base approach (EESBA) for CSF leak repair at a single tertiary neurosurgical center was performed. Twenty six patients with an average age of 44...
March 25, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28481016/stress-response-and-communication-in-surgeons-undergoing-training-in-endoscopic-management-of-major-vessel-hemorrhage-a-mixed-methods-study
#15
Alistair K Jukes, Annika Mascarenhas, Jae Murphy, Lia Stepan, Tamara N Muñoz, Claudio A Callejas, Rowan Valentine, P J Wormald, Alkis J Psaltis
BACKGROUND: Major vessel hemorrhage in endoscopic, endonasal skull-base surgery is a rare but potentially fatal event. Surgical simulation models have been developed to train surgeons in the techniques required to manage this complication. This mixed-methods study aims to quantify the stress responses the model induces, determine how realistic the experience is, and how it changes the confidence levels of surgeons in their ability to deal with major vascular injury in an endoscopic setting...
May 8, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28480156/complex-skull-base-reconstructions-in-kadish-d-esthesioneuroblastoma-case-report
#16
Sheri K Palejwala, Saurabh Sharma, Christopher H Le, Eugene Chang, Audrey B Erman, G Michael Lemole
Introduction Advanced Kadish stage esthesioneuroblastoma requires more extensive resections and aggressive adjuvant therapy to obtain adequate disease-free control, which can lead to higher complication rates. We describe the case of a patient with Kadish D esthesioneuroblastoma who underwent multiple surgeries for infectious, neurologic, and wound complications, highlighting potential preventative and salvage techniques. Case Presentation A 61-year-old man who presented with a large left-sided esthesioneuroblastoma, extending into the orbit, frontal lobe, and parapharyngeal nodes...
April 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28468205/a-rare-concha-variation-coronal-cleft
#17
Serap Yucel, Hediye Pinar Gunbey, Emre Gunbey, Asli Tanrivermis Sayit, Kerim Aslan
Nasal turbinates are embryologically derived from a series of outgrowths from the foetal lateral nasal wall. These outgrowths form a series of ridges, referred to as "ethmoturbinals" and have several vital functions. Several different turbinate variations have been reported so far. The authors presented 3 patients of coronal clefted concha who were diagnosed with magnetic resonance imaging. Computed tomography scans and nasal endoscopic examinations are also performed subsequently. These patients are the first coronal clefted concha cases in the literature and also the first radiological study defining concha cleft...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28465271/endoscopic-superior-ethmoidal-approach-for-anterior-cranial-base-resection-tailoring-the-approach-for-maximum-exposure-with-preservation-of-nasal-structures
#18
Maria Peris Celda, Tyler Kenning, Carlos D Pinheiro-Neto
OBJECTIVE: The traditional endoscopic anterior cranial base resection involves total removal of the ethmoidal cells including middle and superior turbinates. This is associated with increased volume of the nasal cavity postoperatively with more crusting and permanent change of the nasal airflow. The objective is to describe the step-by-step technique and feasibility of the superior ethmoidal approach for anterior cranial base resection with maximum exposure of the anterior cranial base maintaining the middle turbinates, uncinate processes and ostiomeatal complexes intact...
April 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28463440/patient-injuries-in-operative-rhinology-during-a-ten-year-period-review-of-national-patient-insurance-charts
#19
Karin Blomgren, Leena-Maija Aaltonen, Lasse Lehtonen, Päivi Helmiö
OBJECTIVES: To assess factors contributing to patient injuries in operative rhinology. DESIGN: Data of the accepted patient injury claims involving operative rhinology, between the years 2001 and 2011, were obtained from the Finnish Patient Insurance Centre registry. Two senior otolaryngologists analysed and evaluated the injury mechanisms. MAIN OUTCOME MEASURES: Analysis and classification of factors contributing to patient injuries. RESULTS: During the ten-year study period, there were 67 patient injuries in operative rhinology, comprising 36% of all patient injuries in otorhinolaryngologic surgery...
April 30, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28452710/excavating-meningoencephaloceles-a-newly-recognized-entity
#20
Patricia A Loftus, Sarah K Wise, Pedram Daraei, Kristen Baugnon, John M DelGaudio
BACKGROUND: Spontaneous cerebrospinal fluid (CSF) leaks are largely attributed to idiopathic intracranial hypertension and typically present as skull base defects with or without prolapse of intracranial contents. However, in our practice, we have encountered a distinct type of spontaneous CSF leak that presents in a different manner. OBJECTIVE: To discuss a newly-classified, difficult to treat, subset of spontaneous CSF leaks that present as excavation of the bone of the skull base in a tunnel- or canal-like fashion by a meningocele or meningoencephalocele instead of as a localized area of bony dehiscence...
March 1, 2017: American Journal of Rhinology & Allergy
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