Middle Ear Mechanics in Normal Hearing, in Diseased Ears, and in Hearing Reconstruction

2016 ◽  
pp. 37-37
Author(s):  
Manohar Bance ◽  
Robert Adamson
Keyword(s):  
Middle Ear ◽  
Normal Hearing ◽  
Middle Ear Mechanics

Physiology of the Eustachian Tube

1976 ◽  
Vol 85 (2_suppl) ◽  
pp. 156-160 ◽  
Author(s):  
Sven Ingelstedt
Keyword(s):  
Healthy Volunteers ◽  
Eustachian Tube ◽  
Middle Ear ◽  
Scientific Method ◽  
Ambient Pressure ◽  
Normal Hearing ◽  
Neutral Position ◽  
Clinical Use ◽  
Extensive Investigation ◽  
Middle Ear Mechanics

A method for studying the middle ear mechanics is described. The method permits continuous recording of the volume deviation of the drum in relation to the neutral position, both on change in the ambient pressure and in the pressure in the middle ear. One hundred and two volunteers with normal hearing, i.e., a normal audiogram and normal ear findings, were tested repeatedly. This is the most detailed and extensive investigation hitherto performed on healthy volunteers with the aid of a sophisticated, reliable scientific method not suitable for clinical use.

Middle-Ear Mechanics of Type III Tympanoplasty (Stapes Columella): I. Experimental Studies

2003 ◽  
Vol 24 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Ritvik P. Mehta ◽  
Michael E. Ravicz ◽  
John J. Rosowski ◽  
Saumil N. Merchant
Keyword(s):  
Middle Ear ◽  
Experimental Studies ◽  
Type Iii ◽  
Middle Ear Mechanics

Bondy's Modified Radical Mastoidectomy Revisited

1994 ◽  
Vol 73 (1) ◽  
pp. 15-18 ◽  
Author(s):  
Dennis G. Pappas
Keyword(s):  
Middle Ear ◽  
Disease Process ◽  
Ossicular Chain ◽  
Normal Hearing ◽  
The Body ◽  
Radical Mastoidectomy ◽  
Pars Tensa ◽  
Modified Radical Mastoidectomy

The original criteria for modifying a radical mastoidectomy were: (I) an intact pars tensa and a defective pars flaccid a with cholesteatoma; (2) normal or near normal hearing; and (3) an intact, functional ossicular chain. We propose a fourth criterion: that the cholesteatoma site be delineated lateral to the body of the incus. Control of the disease process is easily assured if the lesion is in that area. Our recommended fourth criterion is based on the results of a five-year study of fifty-two cases that met the original criteria. The cholesteatoma reoccurred in the middle ear in only one case. In six cases, periodic care is necessary because of retraction to the grafted attic area. The procedure and technique used in these patients and the excellent results are discussed in this article.

scholarly journals The adhesion molecule cadherin 11 is essential for acquisition of normal hearing ability through middle ear development in the mouse

2018 ◽  
Vol 98 (11) ◽  
pp. 1364-1374 ◽  
Author(s):  
Yuji Kiyama ◽  
Yayoi S. Kikkawa ◽  
Makoto Kinoshita ◽  
Yu Matsumoto ◽  
Kenji Kondo ◽  
...  
Keyword(s):  
Middle Ear ◽  
Adhesion Molecule ◽  
Normal Hearing ◽  
Ear Development ◽  
Hearing Ability ◽  
Middle Ear Development

Middle—ear mechanics in patulous tube cases

1970 ◽  
Vol 69 (sup263) ◽  
pp. 18-22 ◽  
Author(s):  
K. Flisberg ◽  
S. Ingelstedt
Keyword(s):  
Middle Ear ◽  
Middle Ear Mechanics

The prognostic influence of pre-surgery bone conduction values on the improvement of hearing in patients treated surgically as a result of middle-ear conditions

2020 ◽  
Vol 74 (6) ◽  
pp. 1-5
Author(s):  
Katarzyna Job ◽  
Jacek Składzień
Keyword(s):  
Inner Ear ◽  
Hearing Impairment ◽  
Middle Ear ◽  
Pure Tone ◽  
Bone Conduction ◽  
Threshold Value ◽  
Surgical Operation ◽  
Middle Ear Mechanics ◽  
Prognostic Importance ◽  
Mechanical Influence

Background The influence of the mechanics of the middle ear on the function of the inner ear has been studied for many years. Among surgeries performed in the middle-ear area, those restoring full functionality of the system transmitting sound inside the middle ear may be pointed out as those fully restoring the mechanical influence of the middle ear on the function of the inner ear. Aim: The aim of the performed analysis is to find the prognostic importance of measured pre-surgery values of bone conduction on the improvement of hearing in patients operated as a result of middle-ear disorders. Methods The analysis included 271 patients hospitalised and operated on due to otosclerosis or perforation of the tympanic membrane between 2016 and 2019. Only patients who had not had a surgical operation within the middle ear prior to the study were included. An audiological assessment was performed with the use of pure tone thresholds audiometry. Results A beneficial influence of the performed surgery on the improvement of bone conduction was observed in patients, in which the average threshold value of bone conduction measured before the surgery did not exceed 40 dB. In cases of the perceptive component of hearing impairment being higher than 40 dB, no statistically significant, beneficial influence of a performed stapedotomy or myringoplasty on the change of bone conduction thresholds was observed. Conclusion The perception component of hearing impairment up to 40 dB indicates bone conduction improvement after surgical restoration of the influence of middle-ear mechanics on the inner ear in patients treated as a result of otosclerosis, as well as of eardrum perforation.

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