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https://www.readbyqxmd.com/read/28731963/audiologic-gain-of-incus-short-process-vibroplasty-with-conventional-incus-long-process-vibroplasty-a-retrospective-analysis-of-36-patients
#1
Jeon Mi Lee, Young Ho Lee, Jinsei Jung, Sung Huhn Kim, In Seok Moon, Jae Young Choi
OBJECTIVE: To compare the audiological and non-audiological benefits of incus short process (SP) vibroplasty with those of conventional incus long process (LP) vibroplasty. STUDY DESIGN: Retrospective analysis. SETTING: Tertiary referral center. PATIENTS: Thirty-six patients with sensorineural hearing loss were treated with the semi-implantable middle ear hearing device. Of these, 22 were treated with conventional LP vibroplasty, and 14 were treated with SP vibroplasty using SP couplers...
July 20, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28728240/-the-implantation-of-bonebridge-in-bilateral-congenital-malformation-of-external-and-middle-ear
#2
S Q Zhao, R Ren, D M Han, Y Li, X B Ma, D N Wang, Y L Li
Objective: To evaluate the auditory efficacy of Bonebridge implantation in patients with bilateral congenital malformation of external and middle ear. Methods: Eleven cases (6 males and 5 females) had unilateral Bonebridge implantation. The age ranged from 8 to 26 and the average age was 16.9. Seven to ten days after operation, the first fitting was undergone. In acoustic sound field, the average auditory thresholds were respectively measured for unaided ears and Bonebridge implanted ears by pure tone auditory (PTA, 0...
July 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28726666/-pathomorphological-changes-under-latent-mastoiditis
#3
Kh Chitadze, T Jorbenadze, M Adamia
In our opinion it is caused by incomplete awareness of the distribution of pathological process and the character of morphological changes in the patients. In this regard, we studied structural changes in the soft and bone tissue taken from various cavities of the middle ear system. Operating material was formed in paraffin after the fixation and proper processing. We proceed with decalcification of bone tissues in 15-20% nitric acid. We painted 5-6 mm thick peels prepared on the rotating microtome with hematoxylin and eosin...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28726244/computed-tomographic-morphometry-of-tympanic-bulla-shape-and-position-in-brachycephalic-and-mesaticephalic-dog-breeds
#4
Ben Mielke, Richard Lam, Gert Ter Haar
Anatomic variations in skull morphology have been previously described for brachycephalic dogs; however there is little published information on interbreed variations in tympanic bulla morphology. This retrospective observational study aimed to (1) provide detailed descriptions of the computed tomographic (CT) morphology of tympanic bullae in a sample of dogs representing four brachycephalic breeds (Pugs, French Bulldogs, English Bulldog, and Cavalier King Charles Spaniels) versus two mesaticephalic breeds (Labrador retrievers and Jack Russell Terriers); and (2) test associations between tympanic bulla morphology and presence of middle ear effusion...
July 20, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28721606/fluid-structure-finite-element-modelling-and-clinical-measurement-of-the-wideband-acoustic-input-admittance-of-the-newborn-ear-canal-and-middle-ear
#5
Hamid Motallebzadeh, Nima Maftoon, Jacob Pitaro, W Robert J Funnell, Sam J Daniel
The anatomical differences between the newborn ear and the adult one result in different input admittance responses in newborns than those in adults. Taking into account fluid-structure interactions, we have developed a finite-element model to investigate the wideband admittance responses of the ear canal and middle ear in newborns for frequencies up to 10 kHz. We have also performed admittance measurements on a group of 23 infants with ages between 14 and 28 days, for frequencies from 250 to 8000 Hz with 1/12-octave resolution...
July 18, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28719404/predictive-factors-for-hearing-outcomes-after-canaloplasty-in-patients-with-congenital-aural-atresia
#6
Jungmin Ahn, Sun Young Baek, Kyunga Kim, Yang-Sun Cho
OBJECTIVE: The aim of this study was to determine the most important factors in preoperative imaging, including components of Jahrsdoefer score (J score), and favorable prognostic factors for postoperative hearing results after canaloplasty for congenital aural atresia. STUDY DESIGN: Retrospective review of medical records. SETTING, PATIENTS, INTERVENTION, MAIN OUTCOME MEASURE: One hundred eight patients who underwent canaloplasty by a single surgeon between January 2011 and July 2014 were included...
July 17, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28718886/brainstem-auditory-evoked-responses-in-37-dogs-with-otitis-media-before-and-after-topical-therapy
#7
S Paterson
OBJECTIVES: The objective of this study was to determine whether intra-aural administration of aqueous solutions of marbofloxacin, gentamicin, tobramycin and ticarcillin (used off-licence) was associated with changes in hearing as measured by brainstem auditory evoked responses. MATERIALS AND METHODS: Dogs diagnosed with otitis media (n=37) underwent brainstem auditory evoked response testing and then were treated for their ear disease. First, the external ear canal and middle ear were flushed with sterile saline followed by EDTA tris with 0·15% chlorhexidine...
July 18, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28718243/type-i-tympanoplasty-by-underlay-technique-factors-affecting-outcome
#8
Tahira Sajid, Mohammad Imran Shah, Rehman Ghani, Mohammad Asif
BACKGROUND: Type-I Tympanoplasty is an operation which is widely done to close a persistent tympanic membrane perforation after clearing the disease from the middle ear. It is very safe and effective procedure. The success rate varies in different setups and there are some confounding factors which affect the result of Type-I tympanoplasty like the size, type and location of perforation. By conducting this study, we aimed to calculate the success rate of Type-I Tympanoplasty in Ayub Teaching Hospital and assess which confounding factors affect the success rate...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28717576/demodulation-of-quasi-quadrature-interferometric-signals-for-use-in-the-totally-implantable-hearing-aids
#9
Milos C Tomic, Zoran V Djinovic, Slobodan J Petricevic
We propose and experimentally prove an algorithm for demodulation of interferometric signals, modified for use in a totally implantable hearing aid device. A fiber optic configuration, which generates two quasi-quadrature signals by a passive 3x3 coupler, for a non-contact detection of the middle ear ossicle vibration is employed. We simulated the ossicle vibration and large movements and demonstrated the effectiveness of the algorithm to compensate changes of the signal DC values and the phase shift introduced by the coupler...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28717526/large-cholesterol-granuloma-of-the-middle-ear-eroding-into-the-middle-cranial-fossa
#10
Tessei Kuruma, Tohru Tanigawa, Yasue Uchida, Ogawa Tetsuya, Hiromi Ueda
BACKGROUND: Cholesterol granuloma of the middle ear is extremely rare in comparison to cholesterol granuloma of the petrous apex but sometimes shows an aggressive course. CASE REPORT: We report herein a case involving a large, aggressive cholesterol granuloma of the middle ear that eroded the middle cranial fossa. A 64-year-old woman presented with pain in the left ear and hearing loss. Cholesterol granuloma was finally diagnosed from diffusion-weighted imaging, and cortical mastoidectomy was performed with canal wall down tympanoplasty type III...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28716763/clinical-characteristics-of-chronic-perforated-otitis-media-in-different-age-groups
#11
Masayo Hasegawa, Akihiro Shinnabe, Hiromi Kanazawa, Yukiko Iino, Naohiro Yoshida
OBJECTIVE: We aimed to analyze preoperative and intraoperative clinical characteristics of chronic perforated otitis media by patient age. MATERIALS AND METHODS: We analyzed 137 tympanoplasties for chronic perforated otitis media in 133 patients. Exclusion criteria were ear adhesions, cholesteatoma, and a history of tympanoplasty. Patients were divided into a younger group (aged 15-39 years), a middle group (40-64 years), and an elderly group (≥65 years). We compared tympanoplasty technique (using Wullstein classification), mastoid air-cell area measured by temporal bone computed tomography, preoperative aeration of the temporal bone, mean preoperative hearing (at 500 Hz, 1000 Hz, and 2000 Hz), and patch effect calculated by the pre- and post-patch air-bone gap at frequencies of 250 Hz and 500 Hz among the three age groups...
July 17, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28716762/selective-window-application-of-gentamicin-dexamethasone-in-meniere-s-disease
#12
Fazıl Necdet Ardıç, Funda Tümkaya, Kamil Aykal, Burçin Çabuk
OBJECTIVE: The purpose of the study is to prevent hearing loss when using intratympanic (IT) gentamicin for intractable Meniere's disease. MATERIALS AND METHODS: It is a retrospective case review study. Twenty five patients who had definite Meniere's disease and had either selective window application or weekly IT gentamicin were included into the study. First group (selective) had dexamethasone on the round window and gentamicin on oval window during exploratory tympanotomy procedure...
July 17, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28708814/chirp-evoked-otoacoustic-emissions-and-middle-ear-absorbance-for-monitoring-ototoxicity-in-cystic-fibrosis-patients
#13
Angela C Garinis, Douglas H Keefe, Lisa L Hunter, Denis F Fitzpatrick, Daniel B Putterman, Garnett P McMillan, Jeffrey A Gold, M Patrick Feeney
OBJECTIVES: The goal of this study was to investigate the use of transient-evoked otoacoustic emissions (TEOAEs) and middle ear absorbance measurements to monitor auditory function in patients with cystic fibrosis (CF) receiving ototoxic medications. TEOAEs were elicited with a chirp stimulus using an extended bandwidth (0.71 to 8 kHz) to measure cochlear function at higher frequencies than traditional TEOAEs. Absorbance over a wide bandwidth (0.25 to 8 kHz) provides information on middle ear function...
July 13, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28708797/role-of-multislice-ct-imaging-in-predicting-the-visibility-of-the-round-window-in-pediatric-cochlear-implantation
#14
Yasser A Fouad, Ahmad Shaker Elaassar, Mohammad Waheed El-Anwar, Ebrahim Sabir, Ahmad Abdelhamid, Mai Ghonimy
BACKGROUND: High-resolution computed tomography (HRCT) magnifies the role of preoperative imaging for detailed inner and middle ear anatomical information and enhances more efforts for better dependent correlation and measurements of round window (RW). OBJECTIVE: To find an applicable way by HRCT imaging for the prediction of the visibility of the RW during cochlear implantation (CI) surgery. METHODS: Five radiologic measurements were performed on the axial HRCT and these measurements were correlated with the degree of RW visibility after performing posterior tympanotomy during CI surgery...
July 13, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28708445/evaluation-of-yap-signaling-in-a-rat-tympanic-membrane-under-a-continuous-negative-pressure-load-and-in-human-middle-ear-cholesteatoma
#15
Naotaro Akiyama, Tomomi Yamamoto-Fukuda, Mamoru Yoshikawa, Hiromi Kojima
OBJECTIVES: Mechanotransduction plays an important role in cell-proliferative activities. Negative pressure in the middle ear is thought to be an important factor related to the etiology of acquired middle ear cholesteatoma. However, the correlation between negative pressure in the middle ear and the mechanism of middle ear cholesteatoma formation remains unclear. In this study, we investigated the expression of key molecules for mechanotransduction immunohistochemically. METHODS: An immunohistochemical analysis was performed using anti-Wnt5a (a marker of alternative Wnt signaling), -Yes-associated protein (YAP) (a marker of mechanosensing) and -pYAP (phosphorylated YAP at Ser 127: inactivated YAP) antibody in the tympanic membrane (TM) under a negative pressure load and in human middle ear cholesteatoma tissues...
July 14, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28707578/acute-otitis-media-in-children
#16
Alexander Kc Leung, Alex H C Wong
BACKGROUND: Acute otitis media is a common childhood infection. Prompt diagnosis and appropriate treatment are very important. OBJECTIVE: To review in depth the epidemiology, pathophysiology, clinical manifestations, diagnosis, complications and particularly treatment of acute otitis media in children. METHODS: A PubMed search was completed in Clinical Queries using the key term "acute otitis media". Patents were searched using the key term "acute otitis media" from www...
July 12, 2017: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/28699159/is-middle-ear-pressure-affected-by-continuous-positive-airway-pressure-use
#17
Ni Chen, Ashutosh Kacker
No abstract text is available yet for this article.
July 12, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28697607/wideband-acoustic-immittance-for-assessing-middle-ear-functioning-for-preterm-neonates-in-the-neonatal-intensive-care-unit
#18
Nandel Gouws, De Wet Swanepoel, Leigh Biagio De Jager
BACKGROUND: The primary aim of newborn hearing screening is to detect permanent hearing loss. Because otoacoustic emissions (OAEs) and automated auditory brainstem response (AABR) are sensitive to hearing loss, they are often used as screening tools. On the other hand, false-positive results are most often because of transient outer- and middle ear conditions. Wideband acoustic immittance (WAI), which includes physical measures known as reflectance and absorbance, has shown potential for accurate assessment of middle ear function in young infants...
June 28, 2017: South African Journal of Communication Disorders. die Suid-Afrikaanse Tydskrif Vir Kommunikasieafwykings
https://www.readbyqxmd.com/read/28693661/bacterial-strain-changes-during-chronic-otitis-media-surgery
#19
G J Kim, S Yoo, S Han, J Bu, Y Hong, D-K Kim
OBJECTIVE: Cultures obtained from pre-operative middle-ear swabs from patients with chronic otitis media have traditionally been used to guide antibiotic selection. This study investigated changes in the bacterial strains of the middle ear during chronic otitis media surgery. METHODS: Pre-operative bacterial cultures of otorrhoea, and peri-operative cultures of the granulation tissue in either the middle ear or mastoid cavity, were obtained. Post-operative cultures were selectively obtained when otorrhoea developed after surgery...
July 11, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28692593/carcinoma-of-the-middle-ear-a-review-of-the-national-cancer-database
#20
Jason A Brant, Steven J Eliades, Jinbo Chen, Jason G Newman, Michael J Ruckenstein
INTRODUCTION: Malignancy of the middle ear is a rare condition with limited data available for clinical guidance. STUDY DESIGN: Retrospective evaluation of a large national database. SETTING: Deidentified national cancer database. PATIENTS: Subjects with diagnosis of malignancy of the middle ear in the National Cancer Database between 2004 and 2012. MAIN OUTCOME MEASURES: Demographic information and tumor characteristics were evaluated...
July 7, 2017: Otology & Neurotology
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