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Acoustic neuroma

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https://www.readbyqxmd.com/read/29656878/postoperative-headache-following-treatment-of-vestibular-schwannoma-a-literature-review
#1
REVIEW
Ahad Sabab, Jaspreet Sandhu, Stephen Bacchi, Alistair Jukes, Andrew Zacest
Vestibular schwannoma (VS) is a brain tumour arising from Schwann cells that is typically closely associated with the vestibulocochlear nerve. Post-operative headaches (POH) are a potentially common complication of surgery for VS. Greatly differing rates of POH have previously been reported, particularly with different surgical approaches. The aim of this review is to identify and summarise the available peer-reviewed evidence on rates of POH following operative (or radiosurgery) treatment for VS, in addition to information about the treatment and prognosis of POH in these patients...
April 12, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29564143/gastric-schwannoma-a-rare-benign-mimic-of-gastrointestinal-stromal-tumor
#2
Tagore Sunkara, Eric Omar Then, Madhavi Reddy, Vinaya Gaduputi
Schwannomas most commonly manifest as acoustic neuromas in the vestibulo-cochlear nerve (CN VIII). These may occur unilaterally as primary tumors, or bilaterally secondary to neurofibromatosis type 2. More rarely, they present in extra-cranial sites, including the gastrointestinal tract. Gastrointestinal schwannomas are believed to arise from Auerbach's plexus in the muscularis propria, and are classified as mesenchymal tumors. Here, we report a rare case of a 49-year-old woman who had surgical resection of a gastric mass which was eventually diagnosed as gastric schwannoma...
March 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29563978/the-medium-and-long-term-effect-of-electrophysiologic-monitoring-on-the-facial-nerve-function-in-minimally-invasive-surgery-treating-acoustic-neuroma
#3
Baohui Hou
The medium and long-term effects of electrophysiologic monitoring on the facial nerve function in minimally invasive surgery treating acoustic neuroma were studied. Sixty-two patients with acoustic neuroma taking minimally invasive surgeries in Dezhou Hospital from August 2014 to September 2015 were selected and randomly divided into 29 cases of the control group and 33 cases of the observation group. Intraoperative electrophysiologic monitoring was applied to the observation group, but not to the control group...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29556918/five-year-outcomes-following-hypofractionated-stereotactic-radiotherapy-delivered-in-five-fractions-for-acoustic-neuromas-the-mean-cochlear-dose-may-impact-hearing-preservation
#4
Zhiping Chen, Keiichi Takehana, Takashi Mizowaki, Megumi Uto, Kengo Ogura, Katsuyuki Sakanaka, Yoshiki Arakawa, Yohei Mineharu, Yuki Miyabe, Nobutaka Mukumoto, Susumu Miyamoto, Masahiro Hiraoka
BACKGROUND: The aim of this study was to assess the clinical outcomes of acoustic neuromas (ANs) treated with hypofractionated stereotactic radiotherapy (hypo-FSRT) prescribed at a uniform dose. METHODS: Forty-seven patients with a unilateral AN were treated consecutively with hypo-FSRT between February 2007 and March 2012. Nineteen patients maintained a serviceable hearing status at the beginning of hypo-FSRT. The prescribed dose was 25 Gy delivered in five fractions per week to the isocenter, and the planning target volume was covered by the 80% isodose line...
March 19, 2018: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29554375/quality-of-life-in-patients-with-vestibular-schwannomas-following-gross-total-or-less-than-gross-total-microsurgical-resection-should-we-be-taking-the-entire-tumor-out
#5
Michael J Link, Morten Lund-Johansen, Christine M Lohse, Colin L W Driscoll, Ehrling Myrseth, Oystein Vesterli Tveiten, Matthew L Carlson
BACKGROUND: The goal of microsurgical removal of a vestibular schwannoma is to completely remove the tumor, to provide long-term durable cure. In many cases, less than gross total resection (GTR) is performed to preserve neurological, and especially facial nerve function. OBJECTIVE: To analyze long-term quality of life (QoL) in a cohort of patients who received either GTR or less than GTR. METHODS: Patients operated for vestibular schwannoma less than 3...
April 1, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29545977/oral-squamous-cell-carcinoma-found-inline-with-the-fields-of-repeat-stereotactic-radiosurgery-for-recurrent-trigeminal-neuralgia
#6
Aldo Berti, Michelle Granville, Robert E Jacobson
A case of an extremely healthy, active, 96-year-old patient, nonsmoker, is reviewed. He was initially treated for left V1, V2, and V3 trigeminal neuralgia in 2001, at age 80, with stereotactic radiosurgery (SRS) with a dose of 80 Gy to the left retrogasserian trigeminal nerve. He remained asymptomatic for nine years until his trigeminal pain recurred in 2010. He was first treated medically but was intolerant to increasing doses of carbamazepine and gabapentin. He underwent a second SRS in 2012 with a dose of 65...
January 12, 2018: Curēus
https://www.readbyqxmd.com/read/29543218/-surgery-treatment-of-purulent-corneal-ulcers-associated-with-neuroparalytic-keratitis
#7
Evg A Kasparova, O I Sobkova, E A Kasparova, A A Kasparov
OBJECTIVE: The study objective was to develop a method for surgical treatment of advanced purulent corneal ulcer in the setting of neuroparalytic keratitis developed after acoustic neuroma removal and strokes. MATERIAL AND METHODS: The study included 12 patients (13 eyes). All patients underwent single-step keratoplasty, conjunctival autografting, and partial permanent tarsorrhaphy. RESULTS: The eye as an organ was spared in 100% of cases; vision was spared in 50% of cases and improved, from 0...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29498575/long-term-outcome-after-gamma-knife-radiosurgery-for-acoustic-neuroma-of-all-koos-grades-a-single-center-study
#8
Josa M Frischer, Elise Gruber, Verena Schöffmann, Adolf Ertl, Romana Höftberger, Ammar Mallouhi, Stefan Wolfsberger, Christoph Arnoldner, Wilhelm Eisner, Engelbert Knosp, Klaus Kitz, Brigitte Gatterbauer
OBJECTIVE The authors present long-term follow-up data on patients treated with Gamma Knife radiosurgery (GKRS) for acoustic neuroma. METHODS Six hundred eighteen patients were radiosurgically treated for acoustic neuroma between 1992 and 2016 at the Department of Neurosurgery, Medical University Vienna. Patients with neurofibromatosis and patients treated too recently to attain 1 year of follow-up were excluded from this retrospective study. Thus, data on 557 patients with spontaneous acoustic neuroma of any Koos grade are presented, as are long-term follow-up data on 426 patients with a minimum follow-up of 2 years...
March 2, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29493720/risk-of-posterior-semicircular-canal-trauma-when-using-a-retrosigmoid-approach-for-acoustic-neuroma-surgery-and-role-of-endoscopy-an-imaging-study
#9
Ali Kouhi, Varasteh Vakili Zarch, Ali Pouyan
The rate of hearing preservation after vestibular schwannoma surgery is variable and is not as high as expected, possibly due to injuries to the posterior semicircular canal while exposing the tumor. The aim of this study was to estimate the risk of posterior semicircular canal injuries using temporal bone computed tomography (CT) scan findings. Temporal bone CT scans of 30 patients selected between 2013 and 2015 were studied. The median age of the patients was 40 years. Two planes were studied: (1) the axial plane that shows the common crus of the posterior semicircular canal and (2) the coronal plane that shows the two crura of the posterior semicircular canal...
January 2018: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29484269/altered-functional-networks-in-long-term-unilateral-hearing-loss-a-connectome-analysis
#10
Yanyang Zhang, Zhiqi Mao, Shiyu Feng, Xinyun Liu, Lan Lan, Jun Zhang, Xinguang Yu
Introduction: In neuroimaging studies, long-term unilateral hearing loss (UHL) is associated with functional changes in specific brain regions and connections; however, little is known regarding alterations in the topological organization of whole-brain functional networks and whether these alterations are related to hearing behavior in UHL patients. Methods: We acquired resting-state fMRI data from 21 patients with UHL caused by acoustic neuromas and 21 matched healthy controls...
February 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29436268/patient-decision-making-in-vestibular-schwannoma-a-survey-of-the-acoustic-neuroma-association
#11
Omid Moshtaghi, Khodayar Goshtasbi, Ronald Sahyouni, Harrison W Lin, Hamid R Djalilian
Objective To assess the decision-making process of patients with vestibular schwannoma (VS). Study Design Patients with VS completed a voluntary survey over a 3-month period. Setting Surveys were distributed online through email, Facebook, and member website. Subjects and Methods All patients had a diagnosis of VS and were members of the Acoustic Neuroma Association (ANA). A total of 789 patients completed the online survey. Results Of the 789 participants, 474 (60%) cited physician recommendation as a significant influential factor in deciding treatment...
February 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29420377/modified-lengthening-temporalis-myoplasty-involving-an-extended-lazy-s-incision-to-avoid-facial-scar-formation
#12
Tomito Oji, Akiteru Hayashi, Akihiro Ogino, Kiyoshi Onishi
BACKGROUND: Lengthening temporalis myoplasty is a faster and less invasive alternative to free muscle transfer for smile reconstruction. However, it requires a nasolabial fold incision, which leaves a midfacial scar. Based on esthetic considerations, a modified approach, involving an extended lazy-S (parotidectomy) incision instead of a nasolabial fold incision, was developed. METHODS: A cadaveric study involving 10 hemifaces was conducted. From February 2013 to March 2016, the modified lengthening temporalis myoplasty procedure was employed in 10 patients...
February 7, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29400585/fatal-collision-are-wireless-headsets-a-risk-in-treating-patients
#13
Cindy Sage, Lennart Hardell
Wireless-enabled headsets that connect to the internet can provide remote transcribing of patient examination notes. Audio and video can be captured and transmitted by wireless signals sent from the computer screen in the frame of the glasses. But using wireless glass-type devices can expose the user to a specific absorption rates (SAR) of 1.11-1.46 W/kg of radiofrequency radiation. That RF intensity is as high as or higher than RF emissions of some cell phones. Prolonged use of cell phones used ipsilaterally at the head has been associated with statistically significant increased risk of glioma and acoustic neuroma...
February 5, 2018: Electromagnetic Biology and Medicine
https://www.readbyqxmd.com/read/29388340/early-history-of-the-different-forms-of-neurofibromatosis-from-ancient-egypt-to-the-british-empire-and-beyond-first-descriptions-medical-curiosities-misconceptions-landmarks-and-the-persons-behind-the-syndromes
#14
REVIEW
Martino Ruggieri, Andrea D Praticò, Rosario Caltabiano, Agata Polizzi
The earliest examples of neurofibromatosis (in this case type 1, NF1) can be traced in the Ebers Papyrus (Ancient Egypt, 1.500 B.C.), in a Hellenistic statuette (Smyrna, 323 B.C.), in the coinage of the Parthians kings (247 B.C.) and in some 13th century monks' drawings. These earlier examples are somewhat less well defined as compared to the most recent better defined reports credited as having NF1 including an Inca child mummy (1480-1650 AD), Ulisse Aldrovandi's homuncio ("Monstrorum Historia", 1592 A.D.) with mosaic NF1 or the illustrations seen in the 18th century "Buffon's Histoire Naturelle" and "Cruveilhier's Anatomie Pathologique du Corps Human"...
February 1, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29380892/masseteric-cooptation-and-crossfacial-nerve-grafting-is-it-still-applicable-22%C3%A2-months-after-the-onset-of-facial-palsy
#15
B Bianchi, A Varazzani, G Pedrazzi, V Poddi, S Ferrari, B Brevi, A Ferri
BACKGROUND: Eighteen months is usually considered the cutoff time within which recovery of the mimic muscle remains possible using facial nerve cooptation. Few reports on the use of cooptation after this interval have appeared. Purpose of this study is to investigate the feasibility of this procedure also after 22 months. METHODS: Six patients treated via crossfacial nerve grafting between healthy and paralyzed middle and middle-upper facial nerve branches and masseteric cooptation of the main trunk of the paralyzed facial nerve between 20 and 24 months after the onset of palsy were analyzed...
January 30, 2018: Microsurgery
https://www.readbyqxmd.com/read/29348989/signs-and-symptoms-of-acoustic-neuroma-at-initial-presentation-an-exploratory-analysis
#16
Robert W Foley, Shahram Shirazi, Robert M Maweni, Kay Walsh, Rory McConn Walsh, Mohsen Javadpour, Daniel Rawluk
Introduction The objective of this study was to describe the most common clinical features associated with an acoustic neuroma diagnosis and to identify those features associated with larger tumour size at initial diagnosis. Methods The clinical information of 945 consecutive patients diagnosed with acoustic neuroma at a single centre between 1992 and 2015 was analysed. Clinical features were examined and the relationship between these features and tumour size (>2.5 cm) was analysed using descriptive statistics and logistic regression analysis...
November 15, 2017: Curēus
https://www.readbyqxmd.com/read/29344474/corneal-myofibroma-keloid-in-a-young-patient-with-neurofibromatosis-type-2
#17
Lisa Zimmermann, Thomas Reinhard, Clemens Lange, Steffen Heegaard, Claudia Auw-Haedrich
We present a 27-year-old male patient with neurofibromatosis type 2 (NF2), facial palsy, and lagophthalmos following acoustic neuroma removal and an impressing vascularized corneal tumor, which was excised. Histology showed a fibrous tumor with small vessels, and immunohistochemistry was positive for vimentin and negative for smooth muscle actin, S100, and GFAP. We assume a corneal myofibroma (keloid), which in this case rather represents a reactive lesion. This entity has not been described before in NF2 or in facial palsy-associated lagophthalmos in general...
November 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29330600/the-impact-of-acoustic-neuroma-on-long-term-quality-of-life-outcomes-in-the-united-kingdom
#18
Wouter L Lodder, Bernard F A M van der Laan, Tristram H Lesser, Samuel C Leong
OBJECTIVE: To quantify the impact of acoustic neuroma on the quality-of-life (QOL) patients in the United Kingdom. STUDY DESIGN: Online questionnaire survey. PATIENTS: Members of the British Acoustic Neuroma Association received PANQOL questionnaires. RESULTS: Of the 880 BANA members contacted, 397 (45.1%) responded, although only 359 had complete datasets for analysis. Composite QOL scores were as follows: for microsurgery 58 (SD 35), for radiotherapy 56 (SD18), for combination of surgery and radiotherapy 49 (SD 14), and for the observation group 54 (SD 20)...
March 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29288105/the-top-50-most-cited-articles-on-acoustic-neuroma
#19
Abrar Alfaifi, Othman AlMutairi, Maha Allhaidan, Saad Alsaleh, Abdulrazag Ajlan
BACKGROUND: Acoustic neuroma is the most common extra-axial primary cerebellopontine angle tumor in adults. A plethora of studies have been published on acoustic neuroma, but none of the previous works have highlighted the most influential articles. Our objective was to perform a bibliometric analysis of the 50 most-cited articles on acoustic neuroma. METHODS: We performed a title-specific search on the Scopus database using the following search terms: "acoustic neuroma," "vestibular schwannoma," and "cerebellopontine angle...
March 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29227438/transcanal-transpromontorial-acoustic-neuroma-surgery-results-and-facial-nerve-outcomes
#20
Daniele Marchioni, Davide Soloperto, Barbara Masotto, Cristoforo Fabbris, Stefano De Rossi, Domenico Villari, Livio Presutti
BACKGROUND: Recently, the transcanal approach for the removal of acoustic neuromas has been introduced. Facial nerve (FN) preservation is one of the main challenges of this kind of surgery. OBJECTIVE: To describe our experience in the surgical treatment of acoustic neuromas, focusing on the functional results of FN preservation after a transcanal approach. METHODS: A retrospective chart review was carried out on clinical data and videos from operations on 49 patients who underwent surgery with a totally transcanal exclusive endoscopic approach for Koos stage I-II lesions, or an enlarged transcanal transpromontorial approach for Koos stage II-III tumors, between March 2012 and February 2017...
February 2018: Otology & Neurotology
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