Endoscopic findings at the pharyngeal orifice of the eustachian tube in otitis media with effusion

1996 ◽  
Vol 253 (1-2) ◽  
Author(s):  
H. Takahashi ◽  
I. Honjo ◽  
A. Fujita
Keyword(s):  
Otitis Media ◽  
Eustachian Tube ◽  
Otitis Media With Effusion ◽  
Endoscopic Findings

Relationship between Eustachian tube dysfunction and otitis media with effusion in radiotherapy patients

2018 ◽  
Vol 132 (2) ◽  
pp. 111-116 ◽  
Author(s):  
K Akazawa ◽  
H Doi ◽  
S Ohta ◽  
T Terada ◽  
M Fujiwara ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Otitis Media ◽  
Eustachian Tube ◽  
Otitis Media With Effusion ◽  
Intensity Modulated Radiotherapy ◽  
Eustachian Tube Dysfunction ◽  
Dose Volume ◽  
Tube Dysfunction ◽  
The Relationship ◽  
Higher Doses

AbstractObjective:This study evaluated the relationship between radiation and Eustachian tube dysfunction, and examined the radiation dose required to induce otitis media with effusion.Methods:The function of 36 Eustachian tubes in 18 patients with head and neck cancer were examined sonotubometrically before, during, and 1, 2 and 3 months after, intensity-modulated radiotherapy. Patients with an increase of 5 dB or less in sound pressure level (dB) during swallowing were categorised as being in the dysfunction group. Additionally, radiation dose distributions were assessed in all Eustachian tubes using three dose–volume histogram parameters.Results:Twenty-two of 25 normally functioning Eustachian tubes before radiotherapy (88.0 per cent) shifted to the dysfunction group after therapy. All ears that developed otitis media with effusion belonged to the dysfunction group. The radiation dose threshold evaluation revealed that ears with otitis media with effusion received significantly higher doses to the Eustachian tubes.Conclusion:The results indicate a relationship between radiation dose and Eustachian tube dysfunction and otitis media with effusion.

scholarly journals Otitis media with effusion in adults with patulous Eustachian tube

2019 ◽  
Vol 48 (2) ◽  
pp. 030006051987538
Author(s):  
Tao Fu ◽  
Caili Ji ◽  
Zhiyuan Wang ◽  
Xiaowen Zhang ◽  
Min Zhang ◽  
...  
Keyword(s):  
Gastroesophageal Reflux ◽  
Otitis Media ◽  
Eustachian Tube ◽  
Otitis Media With Effusion ◽  
Duration Of Disease ◽  
Patulous Eustachian Tube

Highlight 1.  Patients with patulous Eustachian tube (PET) were older, had a shorter duration of disease, and were more likely to develop bilateral otitis media with effusion. 2. Patients with PET were more likely to develop comorbidities of gastroesophageal reflux and allergies.

Role of Ige-Mediated Hypersensitivity in Otitis Media with Effusion: Pathophysiologic Considerations

1994 ◽  
Vol 103 (5_suppl) ◽  
pp. 15-19 ◽  
Author(s):  
Joel M. Bernstein ◽  
William J. Doyle
Keyword(s):  
Otitis Media ◽  
Eustachian Tube ◽  
Middle Ear ◽  
Otitis Media With Effusion ◽  
Chronic Otitis Media ◽  
Accessory Cell ◽  
Middle Ear Mucosa ◽  
Mucus Production ◽  
Mediators Of Inflammation ◽  
Ige Mediated

A pathophysiologic model of otitis media with effusion secondary to IgE-mediated hypersensitivity is described. Specific mediators of inflammation are released by mucosal mast cells in the nasal mucosa following the interaction of antigen and specific IgE antibody. These mediators increase vascular permeability, mucosal blood flow, and, most important, mucus production. Furthermore, accessory cell types are recruited by colony-stimulating factors that in turn provide an autocrine-positive feedback for the influx of further inflammatory cells. The eustachian tube is then effectively obstructed by both intrinsic venous engorgement and extrinsic mucus plugs, isolating the middle ear space from the ambient environment The net result is the increased exchange of nitrogen into the middle ear mucosa from the middle ear cavity. This causes the development of a significant middle ear underpressure that disrupts tight junctions and allows for transudation of fluids into the middle ear space. The prolonged obstruction of the eustachian tube with mucus results in middle ear inflammation, mucosal metaplasia, and increased glandular activities, all of which are hallmarks of chronic otitis media with effusion.

scholarly journals Immune Status and Eustachian Tube Function in Recurrence of Otitis Media With Effusion

2005 ◽  
Vol 131 (9) ◽  
pp. 771 ◽  
Author(s):  
Masja Straetemans ◽  
Niels van Heerbeek ◽  
Elisabeth A. M. Sanders ◽  
Joost A. M. Engel ◽  
Anne G. M. Schilder ◽  
...  
Keyword(s):  
Otitis Media ◽  
Eustachian Tube ◽  
Immune Status ◽  
Otitis Media With Effusion ◽  
Eustachian Tube Function ◽  
Tube Function

Pseudomonas Otitis Media after Eustachian Tube Obstruction

1992 ◽  
Vol 107 (4) ◽  
pp. 511-515 ◽  
Author(s):  
Patrick J. Antonelli ◽  
Steven K. Juhn ◽  
Marcos V. Goycoolea ◽  
G. Scott Giebink
Keyword(s):  
Otitis Media ◽  
Eustachian Tube ◽  
Middle Ear ◽  
Otitis Media With Effusion ◽  
Acute Otitis Media ◽  
Suppurative Otitis Media ◽  
Tube Obstruction ◽  
Colony Forming Units ◽  
Tube Function ◽  
Pseudomonas Infection

Previous experiments have shown that Pseudomonas aeruginosa may infect the middle ears of chinchillas by way of the eustachian tube and that chinchillas with acute otitis media (AOM) are more susceptible to pseudomonas infection than animals without AOM. The purpose of this experiment was to examine the effects of otitis media with effusion (OME), induced by means of eustachian tube obstruction, on middle ear susceptibility to nasal inoculation of P. aeruginosa. Chinchilla eustachian tubes were obstructed with silicone rubber sponge bilaterally; OME developed in eight animals (11 ears)—three bilaterally and five unilaterally—and persisted for 6 months. Ten chinchillas with normal eustachian tube function served as controls. All animals were nasally inoculated with 5 times 104 colony-forming units of P. aeruginosa. Pseudomonas otitis media developed in eight of 11 OME ears with effusion, none of five ears without OME, and four of 20 control ears (X2 = 11.782, p = 0.003). Therefore, P. aeruginosa can infect the middle ear by way of the eustachian tube. Tubal dysfunction may lead to the development of chronic suppurative otitis media by increasing tubotympanic susceptibility to opportunistic pathogens.

Otitis Media with Effusion

1978 ◽  
Vol 87 (2) ◽  
pp. 191-196 ◽  
Author(s):  
M. Persico ◽  
L. Podoshin ◽  
M. Fradis
Keyword(s):  
Otitis Media ◽  
Eustachian Tube ◽  
Otitis Media With Effusion ◽  
Surface Active Agent ◽  
Combined Treatment ◽  
Active Agent ◽  
Systemic Steroid ◽  
Tube Dysfunction ◽  
Chemotherapeutic Treatment ◽  
The One

Eustachian tube dysfunction has been considered the main factor in the etiology of otitis media with effusion (OME). A short-term systemic steroid therapy, with combined chemotherapeutics, yielded 53.1% cure in 160 children in which OME had been diagnosed, whereas only 12.5% of similar 116 children were cured by chemotherapeutic treatment alone. It is postulated that steroids, acting by a mechanism much similar to the one in the newborn lung, increase the level of a tubal surface active agent, thus enhancing Eustachian tube refunctioning. This combined treatment, we believe, deserves its place as a routine conservative trial before surgery.

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