نتایج جستجو برای: round window

تعداد نتایج: 101171  

Journal: :The international tinnitus journal 1998
DeCicco Hoffer Kopke Wester Allen Gottshall O'Leary

In this study, we review the results of Menière's disease treatment using microdose gentamicin delivered directly to the round window using the Round Window Microcatheter (IntraEar, Inc., Denver, CO). A total of 18 patients were studied, with follow-up ranging from 6 to 18 months. In 15 of 18 patients (83%), tinnitus was improved significantly throughout the follow-up period. Vertigo was elimin...

Journal: :Folia morphologica 2004
Arkadiusz Paprocki Barbara Biskup Katarzyna Kozłowska Agata Kuniszyk Dominik Bien Kazimierz Niemczyk

The treatment of total deafness using a cochlear implant has now become a routine medical procedure. The tendency to expand the audiological indications for cochlear stimulation and to preserve the remnants of hearing has brought new problems. The authors have studied the topographical anatomy of the internal structures of the ear in the area where cochleostomy is usually performed and an impla...

2012
Frank Haubner Christian Rohrmeier Christoph Koch Veronika Vielsmeier Jürgen Strutz Tobias Kleinjung

UNLABELLED BACKGROUND Aim of the present study was to evaluate the occurence of a round window membrane rupture and the effects of hearing restoration after exploratory tympanotomy and sealing of the round window (niche) in patients with unilateral sudden deafness. METHODS Retrospective analysis of patients' charts in a tertiary referral center. Charts of 69 patients with sudden deafness f...

2015
Edward Park Hosam Amoodi Jafri Kuthubutheen Joseph M. Chen Julian M. Nedzelski Vincent Y. W. Lin

BACKGROUND Cochlear implantation has become a mainstream treatment option for patients with severe to profound sensorineural hearing loss. During cochlear implant, there are key surgical steps which are influenced by anatomical variations between each patient. The aim of this study is to determine if there are potential predictors of difficulties that may be encountered during the cortical mast...

Journal: :The Laryngoscope 2017
Eric F Succar Periakaruppan V Manickam Sara Wing Jeffrey Walter Joseph S Greene William J Azeredo

OBJECTIVES/HYPOTHESIS Objectives were to describe the use of round window plugging for superior semicircular canal dehiscence syndrome and review further recommendations regarding the procedure based on our experience and to compare results with recent literature on round window plugging. STUDY DESIGN Retrospective case series. METHODS Fourteen patients underwent round window plugging for s...

2016
Nicole T. Jiam Charles J. Limb

Objective To evaluate incidence of interscalar excursions between round window (RW) and cochleostomy approaches for cochlear implant (CI) insertion. Methods This was a retrospective case-comparison. Flat-panel CT (FPCT) scans for 8 CI users with Med-El standard length electrode arrays were collected. Surgical technique was identified by a combination of operative notes and FPCT imaging. Four ...

Journal: :The Annals of otology, rhinology, and laryngology 1987
B K Franz G M Clark D M Bloom

Cat cochleas implanted with scala tympani prostheses were investigated histologically after inoculating the bullae with a suspension of group A streptococci. The prosthesis was passed through the round window membrane in one ear. In the other the prosthesis bypassed the round window via an opening anteroinferior to the round window niche. Before death, horseradish peroxidase was administered as...

Journal: :Acta oto-laryngologica 2003
Larbi Chelikh Marie Teixeira Christian Martin Olivier Sterkers Evelyne Ferrary Vincent Couloigner

OBJECTIVE To improve the efficacy of intratympanic therapy using perilymphatic entry through the round window membrane. MATERIAL AND METHODS The perilymphatic entry characteristics of 2 neutral molecules, mannitol (182.2 Da) and inulin (7,000 Da), were studied. A polyethylene catheter was placed in contact with the guinea pig round window membrane and sealed with cyanoacrylate glue. This cath...

2015
Stephan Hoch Thomas Vomhof Afshin Teymoortash

OBJECTIVES Rupture of the round window membrane with consecutive development of a perilymphatic fistula (PLF) is still a matter of controversial debate in the pathogenesis of idiopathic sudden sensorineural hearing loss (SSHL). Until now no consensus exists about whether these patients benefit from performing an exploratory tympanotomy with sealing of the round window. The aim of the present st...

Journal: :Journal of Biomedical Materials Research Part A 2016

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