Tympanic-membrane and malleus–incus-complex co-adaptations for high-frequency hearing in mammals
نویسندگان
چکیده
منابع مشابه
Frequency Dependence Hearing Loss Evaluation in Perforated Tympanic Membrane
Introduction Tympanic membrane perforation is a relatively common problem that predisposes patients to varying degrees of conductive hearing loss. Objective The objective of this study is to evaluate and analyze the frequency dependence hearing loss in tympanic membrane perforation based on the size and the site of perforation. Methods For the study, I selected 71 patients' (89) ears for the...
متن کاملDeterminants of Conductive Hearing Loss in Tympanic Membrane Perforation
OBJECTIVES Tympanic membrane perforations are common, but there have been few studies of the factors determining the extent of the resulting conductive hearing loss. The aims of this study were to determine whether the size of tympanic membrane perforation, pneumatization of middle ear & mastoid cavity, and location of perforation were correlated with air-bone gap (ABG) of patients. METHODS F...
متن کاملCorrelating the site of tympanic membrane perforation with Hearing loss
BACKGROUND It is recognized that the size of tympanic membrane perforation is proportional to the magnitude of hearing loss, however, there is no clear consensus on the effect of the location (site) of the perforation on the hearing loss. Hence the study is set to investigate the relationship between the location of perforation on TM and hearing loss. METHODS A cross-sectional prospective stu...
متن کاملInfluence of Tympanic Membrane Perforation on Hearing Loss
Ear is the most pressure sensitive organ of the body and is susceptible for rupture with altered pressure. Tympanic membrane (TM) perforation reduces the total ratio of surface area, allowing the sound waves to directly pass through the middle ear. However, implications of the tympanic membrane perforation on sound transmission in the middle ear is not well characterised. The study was undertak...
متن کاملTri-layer Tympanoplasty as a New Technique in High-risk Tympanic Membrane Perforations
Introduction: The eradication of the middle ear disease is mentioned as the fundamental principle of tympanoplasty. The presence of some factors related to patient or disease itself forces the physician to classify the chronic ear disease as high-risk perforations. The aim of this study was to present a tri-layer tympanoplasty technique and its otological and audiological outcomes in the ...
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ژورنال
عنوان ژورنال: Hearing Research
سال: 2010
ISSN: 0378-5955
DOI: 10.1016/j.heares.2009.10.013