Results 41 to 50 of about 48,040 (161)

Bilateral external auditory canal cholesteatoma: A rare otologic entity in a 49-year-old woman

Acta Oto-Laryngologica Case Reports
Primary external auditory canal cholesteatoma (EACC) is a rare condition characterized by keratinizing squamous epithelium causing progressive bony erosion of the external auditory canal. Bilateral primary EACC is exceptionally uncommon.
Ruthran Thurairaju, Kugan Varatharaju, Steuphen Roy, Philip Rajan Devesahayam, Noor Dina Hashim   +4 more
doaj   +1 more source

Self-injury in schizophrenia as predisposing factor for otomycosis

Medical Mycology Case Reports, 2018
Ear self-mutilation have been reported in schizophrenia, Mechanical damages to the auditory canal, like cleaning ear with hard and unsterile objects are predisposing factors of otomycosis.We present a case of repeated self-induced auricular trauma in ...
Merad Yassine, Adjmi-Hamoudi Haiet
doaj   +1 more source

The shape of the ear canal [PDF]

Physics Letters A, 2006
It is proved that the measurement of the acoustic pressure on the ear membrane allows one to determine the shape of the ear $ uniquely.
openaire   +2 more sources

Objective preclinical measures for bone conduction implants

Frontiers in Neuroscience
The study evaluates the accuracy of predicting intracochlear pressure during bone conduction stimulation using promontory velocity and ear canal pressure, as less invasive alternatives to intracochlear pressure.
Irina Wils, Alexander Geerardyn, Alexander Geerardyn, Tristan Putzeys, Tristan Putzeys, Guy Fierens, Guy Fierens, Guy Fierens, Kathleen Denis, Nicolas Verhaert, Nicolas Verhaert   +10 more
doaj   +1 more source

A case of human acute otoacariasis caused by Rhizoglyphus sp, the first report from Iran

Journal of Acute Disease, 2018
Otoacariasis is the presence of ticks and mites in the auditory canal. A 50-year-old Iranian man was subjected at the an ear, nose, and throat clinic at Rouhani Hospital in Babol with complaint of left ear pain.
Keivan Kiakojouri, Saeid Mahdavi Omran, Ramazan Rajabnia, Abazar Pournajaf, Mojtaba Taghizadeh Armaki, Mohsen Karami   +5 more
doaj   +1 more source

Computer Aided Modeling of Human Mastoid Cavity Biomechanics Using Finite Element Analysis

EURASIP Journal on Advances in Signal Processing, 2010
The aim of the present study was to analyze the human mastoid cavity on sound transmission using finite element method. Pressure distributions in the external ear canal and middle ear cavity at different frequencies were demonstrated. Our results showed
Chou Yuan-Fang, Chen Peir-Rong, Liu Tien-Chen, Lee Wen-Jeng, Lee Chia-Fone, Chen Jyh-Horng   +5 more
doaj  

Bilateral auriclar and external ear canal cartilage calcification

Ear, Nose & Throat Journal
Calcification of auricular cartilage is a rare condition. This phenomenon might be associated with frostbite, local trauma, inflammation, or systemic diseases. Calcification that progresses to the external ear canal cartilage is even rarer. We present an
Dong Hoon Lee MD, PhD, Sang Chul Lim MD, PhD   +1 more
doaj   +1 more source

Ear canal collapse prevalence and associated factors among users of a center of prevention and rehabilitation for disabilities

Revista CEFAC
Purpose: to investigate the prevalence of the ear canal collapse when using supra-aural earphones and to verify if this event is influenced by sex, age, color of the skin and prominent ear. Methods: the collapse was assessed by a visual inspection after
Elisana Costa Dourado, Ana Paula Corona, Silvia Ferrite   +2 more
doaj   +1 more source

Free Nasal Septal Cartilage Graft for Extensive Defects of the External Auditory Canal: A Case Report

Journal of Plastic and Reconstructive Surgery
External canal reconstruction of extensive tissue defects, including auricle or ear canal defects, is challenging. We describe the case of a 28-year-old man who underwent staged skin and nasal septum cartilage grafting for ear canal reconstruction after ...
Toru Miyanaga, Yuko Kinoshita, Takayoshi Kaneko, Mikio Yagishita, Miyuki Kishibe, Masanobu Yamashita, Kenichi Shimada   +6 more
doaj  

Investigating the Effect of Ear Canal Length on Improving Earplugs and Earmuffs Performance at 400 and 500 Hz Frequencies

International Journal of Environmental Health Engineering
Aim: The aim of this study was noise reduction at 400 Hz and 500 Hz frequencies using earplugs and earmuffs, by varying the length of a simulated ear canal.
Hossein Ebrahimi, Farhad Forouharmajd, Siamak Pourabdian, Kamyar Nazaryan   +3 more
doaj   +1 more source