Eustachian Tubal Function in Normal and Diseased Ears

Miller, George F.

doi:10.1001/archotol.1965.00750050046011

Cited by 122 publications

(28 citation statements)

References 2 publications

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“…After the introduction of air-pressure equalisa tion methods {Flisberg et al., 1963;Miller, 1965:Flisberg, 1966 there has been a possibility of directly measuring the extent and duration of the dysfunction. The aspiration test creates vacuum, the deflation test positive pressure in the auditory meatus and in the middle ear, communicating with the auditory meatus through the grommet.…”

Section: Introductionmentioning

confidence: 99%

Tubal Function in Chronic Secretory Otitis media in Children

Poulsen¹,

Tos²

1977

ORL

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In 100 children (150 ears) with chronic secretory otitis media the function of the Eustachian tube during treatment with grommet was investigated by air equalisation methods. Tubal function proved poor in the great majority at the beginning of the treatment, but towards its completion there was some improvement. After extrusion of the grommet, tubal function was investigated on the same material by tympanometry. 34% had normal middle-ear pressure initially, and 43% 12–18 months after closure of the perforation. There was no relation between tubal function shown by air equalisation methods and by tympanometry, and the air equalisation methods proved of less value than tympanometry in assessing the course and prognosis of secretory otitis. The pathogenetic theories -the ex vacuo and the secretory theory – are discussed in relation to the chronic tubal dysfunction found to be the most common direct cause of the disease.

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Section: Introductionmentioning

confidence: 99%

Tubal Function in Chronic Secretory Otitis media in Children

Poulsen¹,

Tos²

1977

ORL

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“…4 One episode of otic barotrauma can predispose an individual to further episodes, if the original predisposing factor persists, or if sufficient time has not been allowed for the original lesion to recover before the individual is exposed to further pressure changes. 5 Sinus barotrauma Humans can voluntarily control the ostium of the eustachian tube by swallowing, yawning, gaping, or performing the Valsalva or Frenzel manoeuvre, but have no such control over the ostia of sinuses. Sinus ostia may be occluded by a plug of mucus, mucosal oedema, polyp or mass.…”

Section: Otic Barotraumamentioning

confidence: 99%

ENT morbidity at high altitude

Prasad

2010

J. Laryngol. Otol.

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Background: People suffer unique health problems in high altitude areas, due to such factors as elevation, aircraft ascent and descent, extreme cold, hypoxia, hypobaria, and low relative humidity. This study was conducted to evaluate ENT morbidity at high altitude.Methods: Serving soldiers introduced to a high altitude environment who presented with various ENT symptoms were examined to identify ENT disease. In addition, patients undergoing hyperbaric chamber therapy, tracheostomy and treatment of cold injuries were also examined for ENT problems.Results: The following were detected: 13 cases of otic barotrauma, 11 cases of sinus barotrauma, three cases of vertigo, six cases of pinna frostbite, three cases of barotrauma caused by hyperbaric chamber therapy, an unusually high incidence of epistaxis, and innumerable patients with high altitude pharyngitis.Conclusion: Diseases of the ear, nose and throat contribute significantly to high altitude morbidity. In a military context, health education of troops is necessary to avoid such problems.

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“…The reason seems to be that a rise in pressure of the tympanic cavity at the time of exposure to a pressurized condition is released by deglutition. Based upon this finding about the ventilatory function of the Eustachian tube, the following authors have estimated the function by means of inflation and deflation loads: Takahara [1948], Flisberg [1963Flisberg [ , 1966, Zollner [1936], Koide [1947], Kanaya et al [1953], Miller [1965], Bortnick [1966], Kumazawa et al [1980], Metz [1953], Thomsen [1957a, b], Holmquist [1969], Bluestone et al [1972Bluestone et al [ , 1974, Cantekin et al [1977] and Honjyo et al [1980], although this method is prevailing. Testing the opening function of the Eusta chian tube by natural swallowing without pressure load is also important.…”

Section: Criteria Of Natural Valvular Function Of the Auditory Tube Umentioning

confidence: 99%

Physiology and Pathophysiology of Air-Filled Ear Space and Eustachian Tube Function

Okubo

Watanabe²

1988

ORL

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The function of the Eustachian tube under atmospheric pressure, on the grounds of our studies, is discussed as follows: (1) Criteria of natural valvular function of the auditory tube under a normal pressure environment. (2) Opening action of the Eustachian tube and mode of swallowing movement in comparison with soft palate movement. (3) High pressure environment and (opening action of) Eustachian tube. (4) Children undergoing tubing and their Eustachian tube function. (5) Ventilatory function of the Eustachian tube under normal pressure conditions. (6) Factors influencing changes in pressure in the tympanic cavity.

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Eustachian Tubal Function in Normal and Diseased Ears

Cited by 122 publications

References 2 publications

Tubal Function in Chronic Secretory Otitis media in Children

Tubal Function in Chronic Secretory Otitis media in Children

ENT morbidity at high altitude

Physiology and Pathophysiology of Air-Filled Ear Space and Eustachian Tube Function

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