SECRETORY OTITIS MEDIA THE SIGNIFICANCE OF NEGATIVE MIDDLE EAR PRESSURE AND THE RESULTS OF A CONTROLLED STUDY OF VENTILATION TUBES

1984 ◽  
Vol 3 (4) ◽  
pp. 376
Author(s):  
T. Lindholdt
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
Controlled Study ◽  
Secretory Otitis Media ◽  
Middle Ear Pressure ◽  
Ventilation Tubes

New Aspects of Secretory Otitis Media, Eustachian Tube Function and Middle Ear Gas

1998 ◽  
Vol 77 (9) ◽  
pp. 770-777 ◽  
Author(s):  
Therese Ovesen ◽  
Jens D. Børglum
Keyword(s):  
Free Radicals ◽  
Otitis Media ◽  
Middle Ear ◽  
Eustachian Tube Function ◽  
Secretory Otitis Media ◽  
Common Procedure ◽  
Oxygen Derived Free Radicals ◽  
Middle Ear Pressure ◽  
Tube Function ◽  
Ventilation Tubes

The insertion of ventilation tubes to equalize pressure in the middle ear is the most common procedure used to treat otitis media. This article evaluates the advantages and drawbacks of ventilation and explores the various roles of the components of middle ear pressure, with special emphasis on oxygen-derived free radicals.

Air Conduction Thresholds and Secretory Otitis Media: A Conventional and Extra-High Frequency Audiometric Comparison

1989 ◽  
Vol 98 (10) ◽  
pp. 767-771 ◽  
Author(s):  
Iain W. S. Mair ◽  
Oddbjørn Fjermedal ◽  
Einar Laukli
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
High Frequency ◽  
Pure Tone ◽  
Low Frequency ◽  
Secretory Otitis Media ◽  
Middle Ear Fluid ◽  
Ventilation Tubes ◽  
Air Conduction

A comparison has been made of air conduction threshold changes up to 1 year after myringotomy, aspiration of middle ear fluid, and insertion of ventilation tubes in ten patients with bilateral and 12 with unilateral secretory otitis media (SOM). Pure tone air conduction thresholds have been analyzed in three frequency groups: Low frequency (LF; 0.25, 0.5, and 1 kHz), high frequency (HF; 2,4, and 8 kHz), and extra-high frequency (EHF; 10, 12, 14, and 16 kHz). In the LF and HF ranges, significant improvement came during the first 24 hours after intubation, while in the EHF range, threshold lowering occurred gradually over the following 2 months. Possible explanations for these findings are discussed.

Changes of Middle Ear Mucosa in Secretory Otitis Media Treated with Ventilation Tubes

1990 ◽  
Vol 110 (3-4) ◽  
pp. 266-273 ◽  
Author(s):  
Fikret Kiroglu ◽  
Mehmet Kaya ◽  
Can Özsahinoglu ◽  
Levent Soylu ◽  
Sait Polat
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
Secretory Otitis Media ◽  
Middle Ear Mucosa ◽  
Ventilation Tubes

Patent Eustachian Tube in the Underaerated Middle Ear: A Paradox

1988 ◽  
Vol 97 (3) ◽  
pp. 219-221 ◽  
Author(s):  
Richard A. Buckingham
Keyword(s):  
Otitis Media ◽  
Eustachian Tube ◽  
Middle Ear ◽  
Essential Factor ◽  
Secretory Otitis Media ◽  
Ear Diseases ◽  
Tube Obstruction ◽  
Middle Ear Pressure

Secretory otitis media, middle ear atelectasis, and retraction type cholesteatomas are the most frequently occurring chronic middle ear diseases; and eustachian tube obstruction and the generation of negative or less than atmospheric middle ear pressure is said to be an essential factor in the pathogenesis of these diseases. It has been found that habitual sniffing causes high degrees of negative middle ear pressure in diseased ears; this finding demonstrates eustachian tube patency rather than obstruction. Ears intubated for chronic secretory otitis media, middle ear atelectasis, and cholesteatoma were examined to identify patent eustachian tubes. More than one third of the patients aspirated a solution into the middle ear with one or more sniffs by aspirating air from their middle ears, demonstrating eustachian tube patency rather than obstruction.

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