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Vestibular schwannoma

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https://www.readbyqxmd.com/read/29351676/congress-of-neurological-surgeons-systematic-review-and-evidence-based-guidelines-on-the-treatment-of-adults-with-vestibular-schwannomas-introduction-and-methods
#1
(no author information available yet)
No abstract text is available yet for this article.
February 1, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29346659/case-report-facial-nerve-bifurcation-noted-during-resection-of-vestibular-schwannoma
#2
Jennifer D Sokolowski, Douglas S Ruhl, Bradley W Kesser, Ashok R Asthagiri
BACKGROUND AND IMPORTANCE: Resection of cerebellopontine angle tumors is challenging because the proximity of the facial nerve puts it at risk of inadvertent injury and subsequent dysfunction. It is critical to consider variations in anatomy and be aware of the potential deviations in the course of the nerve in order to avoid damage. CLINICAL PRESENTATION: We present a case of a facial nerve bifurcation identified during resection of a vestibular schwannoma. CONCLUSION: This is the only reported case of proximal facial nerve bifurcation...
January 13, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29344779/trigeminal-neuropathy-in-vestibular-schwannoma-a-treatment-algorithm-to-avoid-long-term-morbidity
#3
Luke Galloway, Nachi Palaniappan, Geoffrey Shone, Caroline Hayhurst
BACKGROUND: Trigeminal neuropathy (TGN) can occur as a presenting feature of vestibular schwannoma (VS) or as an adverse effect of radiosurgery. This study was designed to evaluate a treatment algorithm for presenting symptoms of TGN in patients with VS, and a new radiosurgery dosimetric tolerance to avoid TGN after treatment. Outcome was measured after microsurgery (MS), stereotactic radiosurgery (SRS), hypofractionated stereotactic radiotherapy (HSRT), and fractionated radiotherapy (FRT)...
January 17, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29343821/focal-hyperintensity-in-the-dorsal-brain-stem-of-patients-with-cerebellopontine-angle-tumor-a-high-resolution-3%C3%A2-t-mri-study
#4
Hirotaka Yamamoto, Atsushi Fujita, Taichiro Imahori, Takashi Sasayama, Kohkichi Hosoda, Ken-Ichi Nibu, Eiji Kohmura
Focal hyperintensity (FHI) in the dorsal brain stem on T2-weighted images of patients with cerebellopontine angle (CPA) tumor was thought to indicate degeneration of the vestibular nucleus and to be specific to vestibular schwannoma. The purpose of this study was to evaluate FHI by using high-resolution 3 Tesla magnetic resonance imaging (3 T MRI) and the relation to clinical characteristics. We retrospectively reviewed the clinical data and MRI of 45 patients with CPA tumors (34 vestibular schwannomas and 11 other tumors)...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29342051/does-hospital-volume-affect-outcomes-in-patients-undergoing-vestibular-schwannoma-surgery
#5
Jonathan L Hatch, Michael J Bauschard, Shaun A Nguyen, Paul R Lambert, Ted A Meyer, Theodore R McRackan
OBJECTIVE: To determine the effect of hospital surgical case volume on the outcomes of vestibular schwannoma surgery. STUDY DESIGN: Retrospective case review. SETTING: University HealthSystem Consortium member hospitals (includes nearly every US academic medical center). PATIENTS: Three thousand six hundred ninety-seven patients who underwent vestibular schwannoma resection over a 3-year timespan (2012-2015) grouped by race, age, comorbidities, payer, and sex...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342038/utility-of-noncontrast-magnetic-resonance-imaging-for-detection-of-recurrent-vestibular-schwannoma
#6
Jamie C Williams, Carrie M Carr, Laurence J Eckel, Amy L Kotsenas, Christopher H Hunt, Matthew L Carlson, John I Lane
BACKGROUND: Gadolinium-enhanced T1-weighted magnetic resonance imaging (MRI) (T1WI) is the conventional imaging technique of choice to detect vestibular schwannoma (VS) recurrence or regrowth, despite suboptimal specificity secondary to enhancing postoperative changes. Furthermore, recent concerns regarding the accumulation of gadolinium in body tissues have led for a call to reduce the number of contrast-enhanced examinations. The objective of the current study is to evaluate the diagnostic accuracy of high-resolution noncontrast (three-dimensional [3D] T2) MRI relative to gadolinium-enhanced T1WI in the detection of VS recurrence after resection...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342035/systematic-review-of-hearing-preservation-after-radiotherapy-for-vestibular-schwannoma
#7
Adam R Coughlin, Tyler J Willman, Samuel P Gubbels
OBJECTIVE: To determine the long-term hearing preservation rate for spontaneous vestibular schwannoma treated by primary radiotherapy. DATA SOURCES: The MEDLINE/PubMed, Web of Science, Cochrane Reviews, and EMBASE databases were searched using a comprehensive Boolean keyword search developed in conjunction with a scientific librarian. English language papers published from 2000 to 2016 were evaluated. STUDY SELECTION: Inclusion criteria: full articles, pretreatment and posttreatment audiograms or audiogram based scoring system, vestibular schwannoma only tumor type, reported time to follow-up, published after 1999, use of either Gamma Knife or linear accelerator radiotherapy...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29336131/vestibular-schwannoma-and-ipsilateral-endolymphatic-hydrops-an-unusual-association
#8
Massimo Ralli, Antonio Greco, Giancarlo Altissimi, Rosaria Turchetta, Lucia Longo, Vittorio D'Aguanno, Mario Tombolini, Giancarlo Cianfrone, Marco de Vincentiis
Vestibular schwannoma and endolymphatic hydrops are two conditions that may present with similar audio-vestibular symptoms. The association of the two in the same patient represents an unusual finding that may lead clinicians to errors and delays in diagnosis and clinical management of affected subjects. We discuss the case of a patient with an intrameatal vestibular schwannoma reporting symptoms suggestive for ipsilateral endolymphatic hydrops. The patient presented with fluctuating hearing loss, tinnitus, and acute rotatory vertigo episodes, and underwent a full audiological evaluation and imaging of the brain with contrast-enhanced Magnetic Resonance Imaging...
December 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/29335780/a-comparison-of-semi-automated-volumetric-vs-linear-measurement-of-small-vestibular-schwannomas
#9
Samuel MacKeith, Tilak Das, Martin Graves, Andrew Patterson, Neil Donnelly, Richard Mannion, Patrick Axon, James Tysome
OBJECTIVE: Accurate and precise measurement of vestibular schwannoma (VS) size is key to clinical management decisions. Linear measurements are used in routine clinical practice but are prone to measurement error. This study aims to compare a semi-automated volume segmentation tool against standard linear method for measuring small VS. This study also examines whether oblique tumour orientation can contribute to linear measurement error. STUDY DESIGN: Experimental comparison of observer agreement using two measurement techniques...
January 15, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29334639/vestibular-schwannoma-and-hearing-preservation-usefulness-of-level-specific-ce-chirp-abr-monitoring-a-retrospective-study-on-25-cases-with-preoperative-socially-useful-hearing
#10
Luciano Mastronardi, Ettore Di Scipio, Guglielmo Cacciotti, Raffaelino Roperto
BACKGROUND AND OBJECTIVES: Decision-making regarding the therapy of vestibular schwannoma (VS) changed over the last decades, during which curative microsurgery has been promoted. Goals of VS microsurgery are: extensive resection, facial nerve (FN) preservation and, in selected cases, hearing preservation (HP). The aim of this study is to evaluate postoperative HP with reference to tumor size in patients operated on with Level Specific (LS)-CE-Chirp® ABR monitoring. PATIENTS AND METHODS: Twentyfive consecutive patients with socially useful hearing (SUH) underwent VS microneurosurgery by retrosigmoid (RS) approach...
January 10, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29327173/personality-traits-patient-centered-health-status-and-prognosis-of-brain-tumor-patients
#11
Adomas Bunevicius
Personality traits can be related to prognosis of cancer patients. The study aimed to evaluate the association of big-five personality dimensions with emotional and cognitive health status, and prognosis of brain tumor patients. A total of 178 patients admitted for brain tumor surgery were evaluated for personality traits (Tem item Personality Inventory), depressive/anxiety symptoms (Hospital Anxiety and Depression Scale or HADS) and cognitive functioning (Mini Mental State Examination or MMSE) on admission...
January 11, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29325939/liponeurocytoma-of-the-cerebello-pontine-angle
#12
Carmela Chiaramonte, Sylvain Rabaste, Timothee Jacquesson, David Meyronet, François Cotton, Emmanuel Jouanneau, Moncef Berhouma
Liponeurocytoma is a very rare tumor classified as grade II (neuronal and mixed neuronal-glial tumors) according to 2016 WHO classification of Tumors of the Central Nervous System. The median age is 50-years-old and the most frequent location is the posterior cranial fossa especially within the cerebellar hemispheres; those arising in the cerebellopontine angle are exceptional. We herein report the clinical, radiological and pathological characteristics of a cerebellopontine angle liponeurocytoma in a 35-year-old woman...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29322949/evolution-of-concepts-in-the-management-of-vestibular-schwannomas-lessons-learnt-from-prof-b-r-ramamurthi-s-article-published-in-1970
#13
Sunil Kumar Gupta, Manjul Tripathi
No abstract text is available yet for this article.
January 2018: Neurology India
https://www.readbyqxmd.com/read/29320320/mr-imaging-and-cochlear-implants-with-retained-internal-magnets-reducing-artifacts-near-highly-inhomogeneous-magnetic-fields
#14
Heidi A Edmonson, Matthew L Carlson, Alice C Patton, Robert E Watson
The number of patients receiving cochlear implants and auditory brainstem implants for severe to profound sensorineural hearing loss has rapidly increased. These implants consist of an internal component implanted between the skull and the temporal scalp and an external removable speech processor unit. A small magnet within the internal component is commonly used to hold the external speech processor unit in place. Several cochlear implant models have recently received U.S. Food and Drug Administration and European Economic Area regulatory approval to allow magnetic resonance (MR) imaging examinations to be performed under certain specified conditions...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29315192/long-term-hearing-preservation-outcomes-for-small-vestibular-schwannomas-retrosigmoid-removal-versus-observation
#15
Weidong Zhu, Hongsai Chen, Huan Jia, Yongchuan Chai, Jie Yang, Zhaoyan Wang, Hao Wu
OBJECTIVE: Management of small vestibular schwannomas (VSs) consists of three options: serial observation, radiosurgery, and microsurgery. The authors reported the long-term hearing outcomes after retrosigmoid tumor removal in 110 patients and hearing follow-up outcomes in 160 serial observation patients with small VSs to explore the appropriate management strategy and predictive factors of hearing preservation for small VSs. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral center...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29315191/ultra-long-term-audiometric-outcomes-in-the-treatment-of-vestibular-schwannoma-with-the-middle-cranial-fossa-approach
#16
Joseph P Roche, Erika A Woodson, Marlan R Hansen, Bruce J Gantz
OBJECTIVE: Define the long-term audiometric outcomes of vestibular schwannomas treated using the middle cranial fossa (MCF) approach. STUDY DESIGN: Retrospective records review. SETTING: University-based tertiary referral center. PATIENTS: Patients undergoing treatment of small vestibular schwannomas using the MCF approach. INTERVENTION(S): MCF exposure and treatment of small vestibular schwannomas...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29315190/audiological-outcomes-in-growing-vestibular-schwannomas-managed-either-conservatively-or-with-stereotactic-radiosurgery
#17
Thomas Daniel Milner, Richard R Locke, Georgios Kontorinis, John A Crowther
OBJECTIVE: Recent studies have suggested good hearing preservation following stereotactic radiosurgery (STRS) in patients with vestibular schwannomas (VS). This study aims to assess audiological outcomes in patients with growing VS treated either with STRS, or managed conservatively. STUDY DESIGN: Retrospective cohort study. SETTING: Tertiary referral center. PATIENTS: Out of 540 patients with VS, 69 patients with growing VS fulfilled the inclusion criteria; 24 treated conservatively and 45 with STRS...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29315189/self-evaluated-quality-of-life-and-functional-outcomes-after-microsurgery-stereotactic-radiation-or-observation-only-for-vestibular-schwannoma-of-the-adult-patient-a-systematic-review
#18
Efstathios Papatsoutsos, Patrick M Spielmann
OBJECTIVE: To evaluate the impact of different management options on health-related quality of life (HRQoL) in vestibular schwannoma patients. DATA SOURCES: A systematic search of the Cochrane Database, Database of Abstracts of Reviews of Effectiveness, and the Ovid Medline & EMBASE was performed. English and German language studies published between 1980 and 2015 were considered. STUDY SELECTION: This is a systematic review of HRQoL of patients managed for vestibular schwannoma...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29309699/congress-of-neurological-surgeons-systematic-review-and-evidence-based-guidelines-on-otologic-and-audiologic-screening-for-patients-with-vestibular-schwannomas
#19
Alex D Sweeney, Matthew L Carlson, Neil T Shepard, D Jay McCracken, Esther X Vivas, Brian A Neff, Jeffrey J Olson
QUESTION 1: What is the expected diagnostic yield for vestibular schwannomas when using a magnetic resonance imaging (MRI) to evaluate patients with previously published definitions of asymmetric sensorineural hearing loss? TARGET POPULATION: These recommendations apply to adults with an asymmetric sensorineural hearing loss on audiometric testing. RECOMMENDATION: Level 3: On the basis of an audiogram, it is recommended that MRI screening on patients with ≥10 decibels (dB) of interaural difference at 2 or more contiguous frequencies or ≥15 dB at 1 frequency be pursued to minimize the incidence of undiagnosed vestibular schwannomas...
December 20, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29309686/congress-of-neurological-surgeons-systematic-review-and-evidence-based-guidelines-on-the-role-of-imaging-in-the-diagnosis-and-management-of-patients-with-vestibular-schwannomas
#20
Ian F Dunn, Wenya Linda Bi, Srinivasan Mukundan, Bradley N Delman, John Parish, Tyler Atkins, Anthony L Asher, Jeffrey J Olson
QUESTION 1: What sequences should be obtained on magnetic resonance imaging (MRI) to evaluate vestibular schwannomas before and after surgery? TARGET POPULATION: Adults with vestibular schwannomas. RECOMMENDATIONS: Initial Preoperative Evaluation Level 3: Imaging used to detect vestibular schwannomas should use high-resolution T2-weighted and contrast-enhanced T1-weighted MRI. Level 3: Standard T1, T2, fluid attenuated inversion recovery, and diffusion weighted imaging MR sequences obtained in axial, coronal, and sagittal plane may be used for detection of vestibular schwannomas...
December 20, 2017: Neurosurgery
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