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https://www.readbyqxmd.com/read/29210944/stapes-release-in-tympanosclerosis
#1
Es-Hak Bedri, Nebiat Teferi, Miriam Redleaf
: Tympanosclerosis in the middle ear space is common in Ethiopia and often involves the ossicles and particularly the stapes. Ear operations in Ethiopia are relatively expensive in this country of limited medical resources and a low average living wage. In this setting, 2-stage operations using prostheses become prohibitively expensive. Therefore, the recommended 2-stage approach for tympanic membrane perforation with tympanosclerosis and stapes fixation is impractical for Ethiopia.We present a series of 67 patients who had a single stage tympanoplasty, removal of tympanosclerosis from the stapes suprastructure, and ossicular chain reconstruction using ossicular interposition...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29201373/free-anterolateral-thigh-full-thickness-skin-flap-with-vascularized-lateral-femoral-cutaneous-nerve-for-the-reconstruction-of-facial-nerve-and-external-auditory-canal-after-the-resection-of-facial-nerve-schwannoma
#2
Ryo Karakawa, Mitsunaga Narushima, Shinya Ogishima, Hisako Hara, Shotaro Karino, Takuya Iida, Akinobu Kakigi, Isao Koshima
The complex reconstruction of nerves and soft tissue in the head and neck region is still challenging, especially in cases requiring external auditory canal reconstruction with facial nerve reconstruction. We report a case of left facial schwannoma extending into the external auditory canal beyond the tympanic membrane with facial paralysis in which the reconstruction of both the facial nerve and external auditory canal was successfully performed using an anterolateral thigh flap as a super-thin full-thickness skin flap, including vascularized lateral femoral cutaneous nerve...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29195482/the-effects-of-varying-tympanic-membrane-material-properties-on-human-middle-ear-sound-transmission-in-a-three-dimensional-finite-element-model
#3
Kevin N O'Connor, Hongxue Cai, Sunil Puria
An anatomically based three-dimensional finite-element human middle-ear (ME) model is used to test the sensitivity of ME sound transmission to tympanic-membrane (TM) material properties. The baseline properties produce responses comparable to published measurements of ear-canal input impedance and power reflectance, stapes velocity normalized by ear-canal pressure (PEC), and middle-ear pressure gain (MEG), i.e., cochlear-vestibule pressure (PV) normalized by PEC. The mass, Young's modulus (ETM), and shear modulus (GTM) of the TM are varied, independently and in combination, over a wide range of values, with soft and bony TM-annulus boundary conditions...
November 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29194226/success-rate-of-tympanic-membrane-closure-in-the-elderly-compared-to-younger-adults
#4
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/29192624/role-of-trichloroacetic-acid-and-gelfoam-in-closure-of-tympanic-membrane-perforations
#5
M Singh, M Kaur, B Singh, K Singh, A Singh, A Kaur
OBJECTIVE: The aim of the study was to study the closure of dry central type of tympanic membrane perforations by chemical cautery and improvement of hearing, to analyse the effect of Gelfoam on nonhealing small tympanic membrane perforations, and to examine the relevance of conservative means of closure of tympanic membrane perforations as an office procedure. MATERIALS AND METHODS: In this study, 100 patients attending the outpatient department were enrolled. Cautery of perforation margin was carried out with 50% trichloroacetic acid (TCA)...
October 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29190487/minimally-invasive-laser-vibrometry-mivib-with-a-floating-mass-transducer-a-new-method-for-objective-evaluation-of-the-middle-ear-demonstrated-on-stapes-fixation
#6
Jeremy Wales, Kilian Gladiné, Paul Van de Heyning, Vedat Topsakal, Magnus von Unge, Joris Dirckx
Ossicular fixation through otosclerosis, chronic otitis media and other pathologies, especially tympanosclerosis, are treated by surgery if hearing aids fail as an alternative. However, the best hearing outcome is often based on knowledge of the degree and location of the fixation. Objective methods to quantify the degree and position of the fixation are largely lacking. Laser vibrometry is a known method to detect ossicular fixation but clinical applicability remains limited. A new method, minimally invasive laser vibrometry (MIVIB), is presented to quantify ossicle mobility using laser vibrometry measurement through the ear canal after elevating the tympanic membrane, thus making the method feasible in minimally invasive explorative surgery...
November 20, 2017: Hearing Research
https://www.readbyqxmd.com/read/29186936/endoscope-assisted-cochlear-implantation
#7
Enis Alpin Güneri, Yüksel Olgun
Objectives: Our aim was to present our endoscope-assisted cochlear implantation (CI) technique, in which the middle ear landmarks were identified through the facial recess exposure by using an endoscopic view without elevating the tympanic annulus. The secondary goal was to assess whether the situation of difficult surgical exposure could be predicted by evaluating preoperative axial computed tomography (CT) examinations. Methods: CT examinations and surgical outcomes of endoscope-assisted CI surgeries were analyzed...
December 1, 2017: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29171341/diagnosis-of-a-tympanic-paraganglioma-with-ct-perfusion-imaging-a-technical-note-and-case-description
#8
Christoph J Maurer, Antje Aschendorff, Horst Urbach
Paragangliomas can be diagnosed accurately using magnetic resonance imaging and dynamic four-dimensional magnetic resonance angiography. Four-dimensional imaging uses the highly vascularised structure of these tumours, which results in a homogenous capillary blush and usually, due to the arteriovenous shunting, in an early draining vein. By these features the tumour can be differentiated from other neoplasms. The authors describe a case of a paraganglioma localised in the middle ear of an elderly patient. Magnetic resonance contraindications led to preoperative diagnostics with high resolution computed tomography of the temporal bone and additionally computed tomography perfusion imaging instead of magnetic resonance imaging with four-dimensional magnetic resonance angiography...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/29169954/application-of-endoscopy-in-otology-changes-over-the-last-8years-in-korean-otological-society
#9
Se-Joon Oh, Eui-Kyung Goh, Hyun-Min Lee, Soo-Keun Kong, Il Joon Moon, Jong-Woo Chung, Il-Woo Lee
OBJECTIVES: Despite the worldwide availability of endoscope in otology, it still has not replaced the microscopic surgery as it has for nose surgery. In 2008, we administered a questionnaire on the preference of using otoscopes in Korea. In light of the worldwide availability of endoscopic ear surgery, we have now conducted a more detailed survey to determine if this preference has changed over 8years. SUBJECTS AND METHODS: A questionnaire consisting of 10 questions was used to survey members of the Korean Otological Society who were actively performing middle ear surgery...
September 22, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29165750/our-experience-in-the-management-of-csf-otorrhea-a-transmastoid-approach-with-middle-ear-cavity-obliteration-and-a-middle-cranial-fossa-approach
#10
Asli Cakir Cetin, Nuri Karabay, Enis Alpin Guneri
In this report, we present two cases of patients with cerebrospinal fluid (CSF) otorrhea who underwent surgical repair through either a transmastoid or middle cranial fossa approach. In our first case, a 34-year-old male after head trauma with conductive hearing loss and a House-Brackmann grade 2 facial palsy was found to have a soft tissue mass protruding through his right tympanic membrane. Radiological examination revealed a wide tegmen tympani defect. He underwent surgery via a transmastoid approach with repair of the defect and blind sac closure of the external auditory canal after middle ear cavity obliteration...
November 1, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29158869/otitis-media-with-effusion-and-atopy-is-there-a-causal-relationship
#11
REVIEW
Mario E Zernotti, Ruby Pawankar, Ignacio Ansotegui, Hector Badellino, Juan Sebastian Croce, Elham Hossny, Motohiro Ebisawa, Nelson Rosario, Mario Sanchez Borges, Yuan Zhang, Luo Zhang
Otitis Media with Effusion (OME) is an inflammatory condition of the middle ear cleft, acute or chronic, with collection of fluid in the middle ear with an intact tympanic membrane. It is a very common disease in childhood, the most frequent cause of hearing loss in childhood and often requiring surgery. OME is called chronic when the fluid in the middle ear persists for more than three months or when the episodes recur six or more times in one year. The current article covers various aspects of OME including definition, epidemiology...
2017: World Allergy Organization Journal
https://www.readbyqxmd.com/read/29157881/deformation-of-avian-middle-ear-structures-under-static-pressure-loads-and-potential-regulation-mechanisms
#12
Raf Claes, Pieter G G Muyshondt, Joris J J Dirckx, Peter Aerts
Static pressure changes can alter the configuration and mechanical behavior of the chain of ossicles, which may affect the acoustic transfer function. In mammals, the Eustachian tube plays an important role in restoring ambient middle ear pressure, hence restoring the acoustic transfer function and excluding barotrauma of the middle and inner ear. Ambient pressure fluctuations can be potentially extreme in birds and due to the simple structure of the avian middle ear (one ossicle, one muscle), regulation of the middle ear pressure via reflexive opening of the pharyngotympanic tube appears all the more important...
November 7, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/29151384/endoscopic-ear-surgery-in-the-ear-camp-setting-forward-thinking-or-folly
#13
M P A Clark
BACKGROUND: Endoscopic ear surgery is becoming an accepted technique in otological surgery, in the management of chronic otitis media. METHODS: The technique was introduced to the humanitarian care setting of an ear camp in Nepal to consider the appropriateness of the technique in this type of clinical setting. RESULTS: Fifteen cases of myringoplasty were successfully completed. CONCLUSION: The apparent advantages of the endoscopic approach over the traditional microscopic one were the ease of transporting the equipment and the optimal view obtained of the tympanic membrane...
November 20, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29148198/ear-nose-and-throat-surgery-all-you-need-to-know-about-the-surgical-approach-to-the-management-of-middle-ear-effusions-in-australian-indigenous-and-non-indigenous-children
#14
REVIEW
Kelvin Kong, Francis J Lannigan, Peter S Morris, Amanda J Leach, Stephen J O'Leary
Otitis media (OM) is a common condition in Australia. It represents a spectrum of diseases from otitis media with effusion (OME) to chronic suppurative otitis media. For all the OM diagnoses, Australian Indigenous children have higher rates of early onset, severe and persistent disease. OME is the most common form of OM and often occurs after an upper respiratory tract infection. It can be difficult to diagnose (and often goes unrecognised). Hearing loss is the most important complication. The middle-ear effusion impedes the movement of the tympanic membrane and causes a conductive hearing loss of around 25 dB...
November 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29144168/the-effects-of-extended-nap-periods-on-cognitive-physiological-and-subjective-responses-under-simulated-night-shift-conditions
#15
Jonathan Davy, Matthias Göbel
Extended nap opportunities have been effective in maintaining alertness in the context of extended night shifts (+12 h). However, there is limited evidence of their efficacy during 8-h shifts. Thus, this study explored the effects of extended naps on cognitive, physiological and perceptual responses during four simulated, 8-h night shifts. In a laboratory setting, 32 participants were allocated to one of three conditions. All participants completed four consecutive, 8-h night shifts, with the arrangements differing by condition...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29142872/isolated-tympanic-plate-fracture-detected-by-cone-beam-computed-tomography-report-of-four-cases-with-review-of-literature
#16
Ashita Ritesh Kalaskar, Ritesh Kalaskar
The tympanic plate is a small part of the temporal bone that separates the mandibular condyle from the external auditory canal. Fracture of this small plate is rare and usually associated with other bony fractures, mainly temporal and mandibular bone. There is a limited amount of literature on this subject, which increases the chance of cases being overlooked by physicians and radiologists. This is further supported by purely isolated cases of tympanic plate fracture without evidence of other bony fractures...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29137879/identification-and-management-of-inverted-or-everted-edges-of-traumatic-tympanic-membrane-perforations
#17
Zhengcai Lou, Zi-Han Lou
INTRODUCTION: Most of traumatic tympanic membrane perforations have inverted or everted edges, however, the effects of inverted and everted edges on the spontaneous healing of the eardrum remain controversial. OBJECTIVE: We investigated the influence of inverted or everted edges on the spontaneous healing of traumatic tympanic membrane perforations. METHODS: The clinical records of patients with a traumatic tympanic membrane perforations who met the study criteria were retrieved and categorized into two groups, based on whether the eardrum was inverted or everted...
October 28, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29130359/necessity-of-admission-to-improve-the-hearing-recovery-rate-in-idiopathic-sudden-sensorineural-hearing-loss
#18
Min Jae Kim, Kyung Wook Heo, Pil Hyun Jeon, Jae Jun Lee, Jun Ho Lee
OBJECTIVES: The purpose of this study was to determine the prognostic potential of admission of a patient for idiopathic sudden sensorineural hearing loss (ISSNHL). STUDY DESIGN: Retrospective clinical study. METHODS: We conducted a retrospective study of 301 patients with ISSNHL. The patients were divided into a study (57 patients at out-patients department (OPD) based treatment, using systemic steroids and intra-tympanic (IT) steroid injection) and a control groups (301 patients at admission, using systemic steroids and IT steroid injection)...
November 13, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29127426/hearing-with-exceptionally-thin-tympana-ear-morphology-and-tympanal-membrane-vibrations-in-eneopterine-crickets
#19
Erik S Schneider, Heinrich Römer, Tony Robillard, Arne K D Schmidt
The receiver sensory system plays a crucial role in the evolution of new communication signals in insects. Among acoustic communicating crickets, the tribe Lebinthini (Eneopterinae) has evolved a unique communication system in that males produce exceptionally high-frequency calls and females respond with vibratory signals to guide males towards them. In this study, we describe nine species of Eneopterinae in which the sound receiving structures have undergone considerable morphological changes. We revealed that the anterior tympanal membrane (ATM) of the ear was extremely thin, as little as 0...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29125825/understanding-the-aetiology-and-resolution-of-chronic-otitis-media-from-animal-and-human-studies
#20
REVIEW
Mahmood F Bhutta, Ruth B Thornton, Lea-Ann S Kirkham, Joseph E Kerschner, Michael T Cheeseman
Inflammation of the middle ear, known clinically as chronic otitis media, presents in different forms, such as chronic otitis media with effusion (COME; glue ear) and chronic suppurative otitis media (CSOM). These are highly prevalent diseases, especially in childhood, and lead to significant morbidity worldwide. However, much remains unclear about this disease, including its aetiology, initiation and perpetuation, and the relative roles of mucosal and leukocyte biology, pathogens, and Eustachian tube function...
November 1, 2017: Disease Models & Mechanisms
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