نتایج جستجو برای: cochleostomy

تعداد نتایج: 120  

2017
Ingo Todt Julica Utca Dania Karimi Arne Ernst Philipp Mittmann

BACKGROUND The inserted cochlear implanted electrode is covered at the site of the round window or cochleostomy to prevent infections and leakage. In a surgically hearing preservational concept, low intracochlear pressure changes are of high importance. The aim of this study was to observe intracochlear pressure changes due to different sealing techniques in a cochlear model. METHODS Cochlear...

Journal: :Brazilian journal of otorhinolaryngology 2015
Alexandre Caixeta Guimarães Guilherme Machado de Carvalho Alexandre S M Duarte Walter A Bianchini Andrea Bravo Sarasty Maria Fernanda di Gregorio Mario Emilio Zernotti Edi Lúcia Sartorato Arthur Menino Castilho

INTRODUCTION Electroacoustic stimulation is an excellent option for people with residual hearing in the low frequencies, who obtain insufficient benefit with hearing aids. To be effective, the subject's residual hearing should be preserved during cochlear implant surgery. OBJECTIVES To evaluate the hearing preservation in patients that underwent implant placement and to compare the results in...

Journal: :ORL; journal for oto-rhino-laryngology and its related specialties 2002
Trifon Kiratzidis Theophilos Iliades Wolfgang Arnold

The 'Veria operation' is a new technique for cochlear implantation. It is a non-mastoidectomy technique and uses the endaural approach for the cochleostomy and a direct tunnel drilled through the supero-posterior bony canal wall for the electrode. Two special instruments have been developed for this technique: a special perforator for the drilling of the direct tunnel and a safety electrode for...

Journal: :The Annals of otology, rhinology, and laryngology 2010
Konstantina M Stankovic Ann Marie Hennessey Barbara Herrmann Leila A Mankarious

OBJECTIVES We report novel mutations in the POU3F4 gene resulting in congenital X-linked deafness DFN3, and describe the results of cochlear implantation in 4 boys (3 siblings) followed for an average of 3.5 years. METHODS The diagnosis of DFN3 was made in infant boys on the basis of the radiologic criteria of an underdeveloped modiolus, a wide cochlear fossette, and the presence of all cochl...

Journal: :ORL; journal for oto-rhino-laryngology and its related specialties 2002
W Arnold G Bredberg W Gstöttner J Helms H Hildmann T Kiratzidis J Müller R T Ramsden P Roland J N Walterspiel

Pneumococcal otogenic meningitis is a rare postsurgical complication that can develop following stapedectomy or after cochlear implantation. The bacterial infection can be fatal in some instances. A recent increase in the incidence of otogenic meningitis among cochlear implant wearers is of concern. The majority of meningitis cases are associated with a 2-component electrode manufactured by one...

Journal: :AJNR. American journal of neuroradiology 2015
N Fischer L Pinggera V Weichbold D Dejaco J Schmutzhard G Widmann

BACKGROUND AND PURPOSE Localization of the electrode after cochlear implantation seems to have an impact on auditory outcome, and conebeam CT has emerged as a reliable method for visualizing the electrode array position within the cochlea. The aim of this retrospective study was to evaluate the frequency and clinical impact of scalar dislocation of various electrodes and surgical approaches and...

Journal: :medical journal of islamic republic of iran 0
m farhadi from the en.t. deptrasui akram medical complex, iran university of medical sciences, tehran, islamic republic of lran. a daneshi from the en.t. dept rasui akram medical complex, iran university of medical sciences, tehran, islamic republic of lran. h imamjomeh dept. of audiology, rasui akram medical complex, iran university of medical sciences, tehran, islamic republic of lran.

cochlear implantation has become an increasingly common procedure in the rehabilitation of selected cases of profound deafness.' patients should have profound total bilateral sensorineural hearing loss. sound is transformed into small electric currents which stimulate the auditory nerves in the cochlea and generate the hearing sensation. the nucleus cochlear implant is the result of more t...

Journal: :Audiology & neuro-otology 2010
Joonhan Lee Joseph B Nadol Donald K Eddington

The depth of electrode insertion of a multichannel cochlear implant has been suggested as a clinical variable that may correlate with word recognition using the implant. The current study evaluates this relationship using the human temporal bone collection at the Massachusetts Eye and Ear Infirmary. Twenty-seven temporal bones of subjects with cochlear implants were studied. Temporal bones were...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2016
Mika Sato Peter Baumhoff Andrej Kral

UNLABELLED Electroacoustic stimulation in subjects with residual hearing is becoming more widely used in clinical practice. However, little is known about the properties of electrically induced responses in the hearing cochlea. In the present study, normal-hearing guinea pig cochleae underwent cochlear implantation through a cochleostomy without significant loss of hearing. Using recordings of ...

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