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Otology & Neurotology

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https://www.readbyqxmd.com/read/29293131/assessment-of-the-importance-of-tympanic-membrane-mechanoreceptors-on-eustachian-tube-function-based-on-pressure-chamber-measurements
#1
Moritz F Meyer, Anja Schoch, Stefanie Jansen, Karl-Bernd Hüttenbrink, Dirk Beutner
INTRODUCTION: Previously, it was demonstrated how the Eustachian tube (ET) opening function can be influenced by middle ear pressure and movement of the tympanic membrane via neural control. Mechanoreceptors on the tympanic membrane may be part of the afferent arc and could influence the middle ear pressure by activating the musculus veli palatini as part of a reflex. METHODS: In a hypo and hyperbaric pressure chamber, 17 participants (34 ears) were twice exposed to a standardized pressure profile of pressure decrease and increase...
December 29, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29287037/correlations-between-the-degree-of-endolymphatic-hydrops-and-symptoms-and-audiological-test-results-in-patients-with-meni%C3%A3-re-s-disease-a-reevaluation
#2
Shiyin Yang, Huaming Zhu, Bijun Zhu, Hui Wang, Zhengnong Chen, Yaqin Wu, Bin Chen, Haibo Shi, Yuehua Li, Jing Zou, Shankai Yin
OBJECTIVE: This study was performed to reevaluate the diagnostic significance of clinically well-accepted audiological tests in indicating endolymphatic hydrops (EH) in Menière's disease (MD). STUDY DESIGN: Retrospective case review. SETTINGS: Hospital. PATIENTS: Fifty patients (52 affected ears) diagnosed with MD were enrolled. INTERVENTION: Diagnostic. MAIN OUTCOME MEASURE: To analyze the correlations between endolymphatic hydrops and results of audiological test including the pure-tone audiometry threshold, suprathreshold function tests, electrocochleogram, and glycerol test...
December 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29287036/benign-paroxysmal-positional-vertigo-bppv-in-children-and-adolescents-clinical-features-and-response-to-therapy-in-110-pediatric-patients
#3
Jacob R Brodsky, Sophie Lipson, Jared Wilber, Guangwei Zhou
OBJECTIVE: This study aimed to characterize the clinical features and outcomes of benign paroxysmal positional vertigo (BPPV) in the pediatric population. STUDY DESIGN: Retrospective case review. SETTING: Tertiary care center. PATIENTS: One hundred ten patients, aged 5 to 19 years old, diagnosed with BPPV. MAIN OUTCOME MEASURES: Patient demographics, comorbidities, canal involvement, response to treatment, and incidence of recurrence...
December 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29283914/cochlear-implantation-after-partial-or-subtotal-cochleoectomy-for-intracochlear-schwannoma-removal-a-technical-report
#4
Stefan K Plontke, Sabrina Kösling, Torsten Rahne
OBJECTIVE: To describe the technique for surgical tumor removal, cochlear implant (CI) electrode placement and reconstruction of the surgical defect in patients with intracochlear schwannomas. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Ten patients (five men, five women, mean age 48 ± 12 yr) with profound or severe to profound hearing loss due to intralabyrinthine schwannomas with intracochlear location...
December 27, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29283913/vestibular-outcome-after-cochlear-implantation-is-not-related-to-surgical-technique-a-double-blinded-randomized-clinical-trial-of-round-window-approach-versus-cochleostomy
#5
Leise Elisabeth Hviid Korsager, Jesper Hvass Schmidt, Christian Faber, Jens Højberg Wanscher
OBJECTIVE: To establish whether the round window approach (RWA) leads to less vestibular dysfunction and dizziness than the standard cochleostomy approach (SCA) during cochlear implant (CI) surgery, as assessed using the video head impulse test (vHIT).Additionally, objective findings were compared with the subjective dizziness perceived by the patient. STUDY DESIGN: Double blinded, clinical randomized trial. SETTING: University Hospital. PATIENTS: Fifty-two ears from 46 patients were included...
December 27, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29227442/what-is-the-sensitive-period-to-initiate-auditory-stimulation-for-the-second-ear-in-sequential-cochlear-implantation
#6
Hong Ju Park, Jee Yeon Lee, Chan Joo Yang, Jun Woo Park, Byung Chul Kang, Woo Seok Kang, Joong Ho Ahn, Jong Woo Chung
OBJECTIVES: Bilateral cochlear implants (CI) are the standard treatment for bilaterally deaf children, but it is unclear how much the second CI can be delayed in sequential bilateral CI. We investigated the performances of sequential CI to answer this question. STUDY DESIGN: Retrospective case series review. SETTING: Tertiary referral center. METHODS: We studied a cohort of congenitally deaf children (n = 73) who underwent sequential CI without any inner ear anomaly or combined disabilities...
December 7, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29227441/potential-risk-factors-affecting-repeated-canalith-repositioning-procedures-in-benign-paroxysmal-positional-vertigo
#7
Junghee Yoon, Jong Bin Lee, Ho Yun Lee, Byung Don Lee, Chi Kyou Lee, Seong Jun Choi
OBJECTIVE: To define the risk factors and adverse effects associated with repeated canalith repositioning procedures (CRPs). STUDY DESIGN: A case series featuring chart review. SETTING: An academic university hospital. PATIENTS: We retrospectively reviewed 1900 patients (average age, 54.9 years; range, 11-88 years) diagnosed with benign paroxysmal positional vertigo (BPPV). All underwent repeated CRPs. We recorded clinical features including age, gender, BPPV cause (idiopathic or secondary), symptom duration, the canal involved, the number of sessions of CRP, recurrence, follow-up duration, and complications...
December 7, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29227440/what-is-the-safety-and-efficacy-of-chemical-venous-thromboembolism-prophylaxis-following-vestibular-schwannoma-surgery
#8
Geoffrey C Casazza, Christian A Bowers, Joel D MacDonald, William T Couldwell, Clough Shelton, Richard K Gurgel
OBJECTIVE: The benefit of routine chemical prophylaxis use for venous thromboembolism (VTE) prevention in skull base surgery is controversial. Chemical prophylaxis can prevent undue morbidity and mortality, however there are risks for hemorrhagic complications. STUDY DESIGN: Retrospective case-control. METHODS: A retrospective chart review of patients who underwent surgery for vestibular schwannoma from 2011 to 2016 was performed. Patients were divided by receipt of chemical VTE prophylaxis...
December 7, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29227438/transcanal-transpromontorial-acoustic-neuroma-surgery-results-and-facial-nerve-outcomes
#9
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...
December 7, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194226/success-rate-of-tympanic-membrane-closure-in-the-elderly-compared-to-younger-adults
#10
Casper Jolink, Max R Zwemstra, Maarten J F de Wolf, Fenna A Ebbens, Erik van Spronsen
OBJECTIVE: To assess the effectiveness and safety of tympanoplasty in elderly patients and the effect of frailty on the results. STUDY DESIGN: Retrospective chart review. SETTING: Tertiary referral center. PATIENTS: Thirty-one ears in 30 patients aged 65 years and older were included and matched with 31 controls, based on the type of surgery, of a pool of 133 patients aged 35 to 55 years. INTERVENTION: Therapeutic...
November 30, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194225/hearing-outcomes-after-stereotactic-radiosurgery-for-jugular-paraganglioma
#11
Neil S Patel, Michael J Link, Colin L W Driscoll, Bruce E Pollock, Christine M Lohse, Matthew L Carlson
OBJECTIVE: To describe audiometric outcomes following stereotactic radiosurgery (SRS) for jugular paraganglioma (JP). STUDY DESIGN: Retrospective review. SETTING: Tertiary referral center. PATIENTS: Patients with pretreatment serviceable hearing (American Academy of Otolaryngology-Head and Neck Surgery [AAO-HNS] Class A or B) and serial post-SRS audiometric follow-up who underwent Gamma Knife SRS for JP between 1990 and 2017...
November 30, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194224/a-population-based-analysis-of-melanoma-of-the-external-ear
#12
Tapan D Patel, Oliver Y Chin, Soly Baredes, Jean Anderson Eloy, Yu-Lan Mary Ying
OBJECTIVE: Malignant melanoma accounts for nearly 75% of all skin cancer deaths, and the incidence is on the rise in the United States. External ear melanoma (EEM) is rare, and there is little long-term data regarding the clinical behavior of this melanoma site. This study analyzes the demographic, clinicopathologic, and survival characteristics of EEM. METHODS: The SEER database was queried for EEM cases from 1973 to 2012 (8,982 cases). Data analyzed included patient demographics, incidence trends, and survival outcomes...
November 30, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194215/cochlear-implant-insertion-axis-into-the-basal-turn-a-critical-factor-in-electrode-array-translocation
#13
Renato Torres, Mylène Drouillard, Daniele De Seta, Jean-Loup Bensimon, Evelyne Ferrary, Olivier Sterkers, Daniele Bernardeschi, Yann Nguyen
HYPOTHESIS: An inappropriate insertion axis leads to intracochlear trauma during cochlear implantation (CI). BACKGROUND: Few studies assessed the relationship between the insertion axis and the electrode scalar location. METHODS: Preimplantation cone-beam CT (CBCT) was performed on 12 human temporal bones. In five temporal bones, an optimal insertion axis was planned, due to the impossibility to attain the ST centerline from the posterior tympanotomy, because of facial canal position...
November 29, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194214/prediction-of-vestibular-imbalance-in-acute-peripheral-vestibulopathy-by-measuring-horizontal-ocular-deviation-on-magnetic-resonance-imaging
#14
Yeon-Jun Yang, Kun Woo Kim, Ji Eun Choi, Min Young Lee, Dong Soo Yoo, Jae Yun Jung
OBJECTIVES: The aim of the study is to evaluate whether horizontal ocular deviation (OD) from MR imaging in the emergency room (ER) reflects vestibular imbalance, by comparing the horizontal OD in patients with acute vestibulopathy to controls. STUDY DESIGN: Retrospective review. PATIENTS AND METHODS: A total of 69 patients with acute unilateral peripheral vestibulopathy and 30 healthy subjects were included. Horizontal OD was quantified by using the axial T2-weighted fast-spin echo (FSE) images of the brain at 1...
November 29, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194213/ollier-disease-of-the-lateral-skull-base
#15
Zachary C Fridirici, Jeffrey J Petrusek, Eric J Thorpe, John P Leonetti
No abstract text is available yet for this article.
November 29, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29194212/evaluation-of-mitoquinone-for-protecting-against-amikacin-induced-ototoxicity-in-guinea-pigs
#16
Carolyn O Dirain, Maria Raye Ann V Ng, Bailey Milne-Davies, Jerin K Joseph, Patrick J Antonelli
HYPOTHESIS: Mitoquinone (MitoQ) attenuates amikacin ototoxicity in guinea pigs. BACKGROUND: MitoQ, a mitochondria-targeted derivative of the antioxidant ubiquinone, has improved bioavailability and demonstrated safety in humans. Thus, MitoQ is a promising therapeutic approach for protecting against amikacin-induced ototoxicity. METHODS: Both oral and subcutaneous administrations of MitoQ were tested. Amikacin-treated guinea pigs (n = 12-18 per group) received water alone (control) or MitoQ 30 mg/l-supplemented drinking water; or injected subcutaneously with 3 to 5 mg/kg MitoQ or saline (control)...
November 29, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29210952/survey-of-the-american-neurotology-society-on-cochlear-implantation-part-1-candidacy-assessment-and-expanding-indications
#17
Matthew L Carlson, Douglas P Sladen, Richard K Gurgel, Nicole M Tombers, Christine M Lohse, Colin L Driscoll
OBJECTIVE: To examine practice variance of cochlear implant candidacy assessment and off-label indications across centers in the United States. METHODS: Cross-sectional survey of the American Neurotology Society (ANS). RESULTS: A total of 81 surveys were returned from ANS members who report regular involvement in cochlear implant care. Overall there was a broad distribution in age and clinical experience, with most respondents reporting ACGME accreditation in neurotology and employment at an academic center...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29210950/a-prospective-study-of-pain-from-magnetic-resonance-imaging-with-cochlear-implant-magnets-in-situ
#18
Seth E Pross, Bryan K Ward, Jeffrey D Sharon, Heather M Weinreich, Nafi Aygun, Howard W Francis
OBJECTIVE: To describe changes in pain associated with magnetic resonance imaging (MRI) with cochlear implant magnets in place. STUDY DESIGN: Prospective, single-arm study. SETTING: Tertiary referral center. SUBJECTS: Adults with cochlear implants requiring MRI. INTERVENTION: Tight head wrapping over internal device during MRI. MAIN OUTCOME MEASURES: Change in pain score using an 11-point visual analogue scale, duration/completion of MRI, body mass index (BMI), quality of pain, status of the skin, functioning of implant, displacement/polarity change of magnet, willingness to repeat MRI without magnet removal...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29210949/clinical-characteristics-and-treatment-outcomes-for-patients-with-external-auditory-canal-cholesteatoma
#19
Shinya Morita, Yuji Nakamaru, Atsushi Fukuda, Keishi Fujiwara, Kimiko Hoshino, Akihiro Homma
OBJECTIVE: We aimed to evaluate the clinical features and treatment outcomes for patients with idiopathic and secondary external auditory canal cholesteatoma (EACC), and to validate the treatment strategy from the perspective of hearing as well as etiology and staging. STUDY DESIGN: Retrospective case series. SETTING: Tertiary referral center and affiliated hospitals. PATIENTS: Fifty-eight patients with idiopathic EACC and 14 patients with secondary EACC...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29210948/cochlear-implantation-in-a-patient-with-sickle-cell-disease-with-early-cochlear-sclerosis
#20
Seon Jeong Kim, Muhammad Reza Taheri, Marquitta Merkison, Ashkan Monfared
OBJECTIVE: We report a case of bilateral sudden sensorineural hearing loss (SNHL) and early cochlear sclerosis in a patient with sickle cell disease. METHODS: A 19-year-old female presented with sequential bilateral sudden SNHL and early cochlear sclerosis. Cochlear implantation was performed. RESULTS: Early cochlear fibrosis in the hook region and basal turn was encountered within a few months of deafness. Implantation required serial dilation using various insertion guides...
November 28, 2017: Otology & Neurotology
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