Comparison of effects of dry versus wet swallowing on Eustachian tube function via a nine-step inflation/deflation test

2005 ◽  
Vol 119 (9) ◽  
pp. 704-708 ◽  
Author(s):  
M Kemal Adali ◽  
Cem Uzun
Keyword(s):  
Middle Ear ◽  
Test Procedure ◽  
Step Test ◽  
Eustachian Tube Function ◽  
Single Session ◽  
Test Procedures ◽  
Tube Function ◽  
The Difference ◽  
Test Result ◽  
First Session

The aim of the present study is to evaluate the effect of swallowing type (dry versus wet) on the outcome of a nine-step inflation/deflation tympanometric Eustachian tubefunction (ETF) test in healthy adults.Fourteen normal healthy volunteers, between 19 and 28 years of age, were included in the study. The nine-step test was performed in two different test procedures: (1) test with dry swallows (dry test procedure) and (2) test with liquid swallows (wet test procedure). If the equilibration of middle-ear (ME) pressure was successful in all the steps of the nine-step test, ETF was considered ‘Good’. Otherwise, the test was considered ‘Poor’, and the test was repeated at a second session.In the dry test procedure, ETF was ‘Good’ in 21 ears at the first session and in 24 ears after the second session (p > 0.05). However, in the wet test procedure, ETF was ‘Good’ in 13 ears at the first session and in 21 ears after the second session (p < 0.05).At the first session, ETF was ’Good’ in 21 and 13 ears in the dry and wet test procedures, respectively. The difference was statistically significant (p < 0.05). However, after the second session, the overall number of ears with ‘Good’ tubal function was almost the same in both test procedures (24 ears at dry test procedures versus 21 ears at wet test procedures;p > 0.05).Dry swallowing seems to be more effective for the equilibration of ME pressure. Thus, a single-session dependent evaluation of ETF may be efficient for the dry test procedure of the nine-step test. Swallowing with water may be easier for subjects, but a repetition of the test at a second session may be necessary when the test result is ‘Poor’.

scholarly journals Does Septoplasty Affect Middle Ear Pressure and Eustachian Tube Function?

2014 ◽  
Vol 36 (3) ◽  
pp. 115-118 ◽  
Author(s):  
Mehmet Ilhan Sahin ◽  
Safak Gulec ◽  
Umit Perisan ◽  
Ismail Kulahli
Keyword(s):  
Eustachian Tube ◽  
Middle Ear ◽  
Eustachian Tube Function ◽  
Middle Ear Pressure ◽  
Tube Function

Measuring dynamic Eustachian tube function using tympanometry in a pressure chamber: the effect of nasal betahistine application

2019 ◽  
Vol 133 (7) ◽  
pp. 580-587 ◽  
Author(s):  
B K-H G Franz ◽  
R Patuzzi ◽  
C J Wraight ◽  
G Kay ◽  
A Ng ◽  
...  
Keyword(s):  
Eustachian Tube ◽  
Middle Ear ◽  
Animal Studies ◽  
Pressure Chamber ◽  
Chamber Pressure ◽  
Eustachian Tube Function ◽  
Hyperbaric Chamber ◽  
Middle Ear Pressure ◽  
Tube Dysfunction ◽  
Tube Function

AbstractObjectiveTo assess the effect of topical betahistine on Eustachian tube function in subjectively abnormal subjects in a hyperbaric chamber.MethodActive and passive Eustachian tube function was examined using tympanometry in a pressure chamber.ResultsActive Eustachian tube function was tested against the negative middle ear pressure induced by increasing the chamber pressure to +3 kPa. One voluntary swallow decreased middle-ear pressure by a mean of 1.36 kPa. Passive Eustachian tube function was tested by measuring spontaneous Eustachian tube openings as the chamber pressure dropped from +10 kPa to ambient. Four distinct patterns of Eustachian tube behaviour were seen, three of which indicated Eustachian tube dysfunction. Betahistine had no positive effect on Eustachian tube opening, although previous animal studies had suggested a beneficial effect.ConclusionTopical betahistine had no effect on Eustachian tube function. Combining a hyperbaric chamber with tympanometry proved ideal for evaluating Eustachian tube function.

Relation between temporal bone pneumatisation and middle-ear barotrauma in aircrew members

2019 ◽  
Vol 133 (10) ◽  
pp. 918-922
Author(s):  
A Hussein ◽  
H M Abdel Tawab ◽  
W T Lotfi ◽  
N Fayad ◽  
N Elsisy
Keyword(s):  
Temporal Bone ◽  
Middle Ear ◽  
Potential Role ◽  
Eustachian Tube Function ◽  
Middle Ear Pressure ◽  
Tube Function ◽  
Group A ◽  
Group B ◽  
Air Cells

AbstractObjectiveThis study aimed to assess the potential role of pneumatisation of the mastoid and its communicating air cells in the development of middle-ear barotrauma in aircrew members.MethodsSeventy-nine aircrew members (158 ears) underwent temporal computed tomography. All were assessed before flying by clinical examination and audiology evaluation, followed by post-flight examination to detect barotrauma.ResultsAircrew members’ ears were divided into 3 groups based on barotrauma and temporal bone pneumatisation: 33 ears with barotrauma and temporal bone pneumatisation of 71 cm3 or greater (group A); 12 ears with barotrauma and temporal bone pneumatisation of 11.2 cm3 or lower (group B); and 113 ears with no barotrauma (group C). Mean pneumatisation volumes were 91.05 cm3, 5.45 cm3 and 28.01 cm3 in groups A, B and C, respectively. A direct relationship was observed between volume of temporal bone pneumatisation of 71 cm3 or greater and barotrauma grade.ConclusionPneumatisation volume of the mastoid and its communicating air cells that ranges from 11.3 cm3 to 70.4 cm3 serves as a reliable predictor of the avoidance of middle-ear barotrauma associated with flying in aircrew members who have normal resting middle-ear pressure and good Eustachian tube function.

scholarly journals Eustachian Tube Function in Adults without Middle Ear Disease

2011 ◽  
Vol 120 (4) ◽  
pp. 220-225 ◽  
Author(s):  
J. Douglas Swarts ◽  
Cuneyt M. Alper ◽  
Ellen M. Mandel ◽  
Richard Villardo ◽  
William J. Doyle
Keyword(s):  
Eustachian Tube ◽  
Middle Ear ◽  
Eustachian Tube Function ◽  
Tube Function ◽  
Middle Ear Disease

Evacuation of the Middle Ear by Sniffing: A Cause of High Negative Pressure and Development of Middle Ear Disease

1984 ◽  
Vol 92 (3) ◽  
pp. 312-318 ◽  
Author(s):  
Bernt Falk ◽  
Bengt Magnuson
Keyword(s):  
Eustachian Tube ◽  
Middle Ear ◽  
Negative Pressure ◽  
Experimental Studies ◽  
Eustachian Tube Function ◽  
Middle Ear Effusion ◽  
Pressure Equalization ◽  
Tube Function ◽  
Middle Ear Disease ◽  
Ear Effusion

Previous research on eustachian tube function has been devoted mainly to the study of the tubal opening ability and pressure equalization. This article summarizes a series of experimental studies focusing on the closing ability of the tube. Results support the belief that the purpose of the tube should be seen primarily as protecting the middle ear from the extensive pressure variations that physiologically take place in the nasopharynx. A number of studies of diseased ears have shown that tubal malfunction was characterized mainly by a reduced ability to withstand negative pressure in the nasopharynx. Sniffing can evacuate the middle ear, causing high negative intratympanic pressure. It seems likely that this mechanism is involved in the development of middle ear effusion and manifest retraction-type middle ear disease.

Eustachian Tube Function and the Middle Ear

2006 ◽  
Vol 39 (6) ◽  
pp. 1221-1235 ◽  
Author(s):  
John W. Seibert ◽  
Christopher J. Danner
Keyword(s):  
Eustachian Tube ◽  
Middle Ear ◽  
Eustachian Tube Function ◽  
Tube Function

The Response of the Nasal Airway, Middle Ear, and Eustachian Tube to Experimental Rhinovirus Infection

1988 ◽  
Vol 2 (4) ◽  
pp. 149-154 ◽  
Author(s):  
William J. Doyle ◽  
Timothy P. McBride ◽  
J. Douglas Swarts ◽  
Frederick G. Hayden ◽  
Jack M. Gwaltney
Keyword(s):  
Eustachian Tube ◽  
Middle Ear ◽  
Clearance Rate ◽  
Mucociliary Clearance ◽  
Nasal Congestion ◽  
Eustachian Tube Function ◽  
Nasal Patency ◽  
Rhinovirus Infection ◽  
Middle Ear Pressure ◽  
Tube Function

This paper describes the longitudinal changes in nasal patency, mucociliary clearance rate, eustachian tube function, and middle ear pressure in a group of 40 volunteers infected with rhinovirus type 39. Thirty-two (80%) of the volunteers were judged to have had a cold based on the modified Jackson criteria. Common symptoms included malaise, nasal congestion, rhinorrhea, and sneezing that began on the day after challenge and peaked in intensity on days 3–5. Nasal patency evaluated by active posterior rhinomanometry and mucociliary clearance rate evaluated by the dyed sacharrin technique were significantly decreased following challenge. For nasal patency the effect was primarily limited to days 2–8 postchallenge, while abnormalities in clearance rate were documented for as long as 18 days postchallenge. A 50% increased incidence of abnormal eustachian tube function and a 30% increased incidence of abnormal middle ear pressures were observed for days 2–7 postchallenge with a gradual return to baseline by day 16. For mucociliary clearance, eustachian tube function, and middle ear pressure, but not nasal patency, these abnormalities were more pronounced in patients with a symptomatic cold. These results show that changes in nasal physiology resulting from a rhinovirus infection can be objectively quantified and that the resulting pathophysiology extends to anatomically contiguous structures such as the eustachian tube and middle ear.

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