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Journal articles on the topic 'Eustachian tube function'

Author: Grafiati

Published: 5 June 2025

Last updated: 16 July 2025

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Yudianto, Sony, Luh Made Ratnawati, Eka Putra Setiawan, and Sari Wulan Dwi Sutanegara. "Hubungan derajat obstruksi hidung pada pasien deviasi septum dengan disfungsi tuba Eustachius." Oto Rhino Laryngologica Indonesiana 44, no. 1 (2014): 19. http://dx.doi.org/10.32637/orli.v44i1.79.

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Latar belakang: Deviasi septum diduga sebagai salah satu predisposisi terjadinya disfungsi tuba Eustachius, terutama di telinga ipsilateral pada sisi hidung yang tersumbat. Tujuan: Penelitian ini bertujuan untuk mengetahui hubungan antara derajat obstruksi hidung pada pasien deviasi septum nasi dengan disfungsi tuba Eustachius. Metode: Diskriptif dan analitik pada penelitian yang kami lakukan di poliklinik THT-KL RSUP Sanglah Denpasar, diikuti 58 orang yang terbagi dalam kelompok disfungsi tuba Eustachius sebanyak 29 responden dan kelompok fungsi tuba Eustachius normal sebesar 29 responden. Hasil: Analisis penelitian didapatkan hubungan yang bermakna yaitu derajat obstruksi hidung kanan pada pasien deviasi septum meningkatkan risiko kejadian 2,85 kali lebih tinggi dengan terjadinya disfungsi tuba Eustachius kanan. Pada sisi kiri juga didapatkan hubungan yang bermakna yaitu derajat obstruksi hidung kiri pada pasien deviasi septum meningkatkan risiko kejadian 2,17 kali lebih tinggi dengan dengan terjadinya disfungsi tuba Eustachius kiri. Pada derajat sumbatan hidung diketahui pada sisi kanan dan pada sisi kiri dengan hasil responden yang mengalami sumbatan hidung derajat berat secara bermakna meningkatkan risiko terjadinya disfungsi tuba Eustachius pada sisi yang sama dengan nilai (p< 0,05). Kesimpulan: Pada penelitian ini didapatkan hubungan yang bermakna antaraderajat obstruksi hidung pada pasien deviasi septum yang meningkatkan risiko terjadinya disfungsi tuba Eustachius pada sisi yang sama.Kata kunci: Disfungsi tuba Eustachius, obstruksi hidung, deviasi septum nasi. ABSTRACTBackground: Septal deviation is suspected as one of the predisposing factor in Eustachian tube dysfunction, especially in the ipsilateral ear on the side of the obstructed nose. Purpose: To find out the relationship between the degree of nasal obstruction in septal deviation patient with Eustachian tube dysfunction. Method: Descriptive analytic studies that we conducted in ENT clinic Sanglah Hospital that divided 58 people into 29 respondents as the Eustachian tube dysfunction group and 29 others as the normal Eustachian tube function group. Result: We found prevalence of right Eustachian tube dysfunction in 21 respondents and the prevalence on the left Eustachian tube dysfunction in 8 respondents, which was on the same side with the obstructed nose in the case group as measured byPNIF. Bivariate analysis found a significant relationship that increased the risk of occurence was 2,85 times higher in septal deviation patients with right obstructed nose with the right Eustachian tube dysfunction. The left side also showed a significant association 2,17 times. Degree of nasal obstruction performed analysis known on the right side and on the left side showed that respondents with severe degrees of nasal obstruction significantly increased the risk of Eustachian tube dysfunction on the ipsilateral side (p<0,05). Conclusion: In this study we have significant association between the degree of nasal obstruction in septal deviation patients which increased the risk of Eustachian tube dysfunction incidence on the ipsilateral side.Keywords: Eustachian tube dysfunction, nasal obstruction, nasal septal deviation.

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Ankit, Kumar Tiwari, Singh Moupachi Surendra, Ambulker Meenakshi, and Choubey Mishra Surbhi. "Effect of Eustachian Tube Function on Tympanoplasty Outcome." International Journal of Pharmaceutical and Clinical Research 15, no. 7 (2023): 342–45. https://doi.org/10.5281/zenodo.11636617.

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Background: Eustachian tube play a vital role in the pathogenesis of middle ear cleft disease Normal eustachian tube function (ETF) is responsible for successful tympanoplasty outcome. Pre operative eustachian tube function test should be done. Aim & Objective: To evaluate the role of Eustachian tube function in successful graft uptake in tympanoplasty. Method: A prospective study was done on 50 patients, with mucosal type of chronic otitis media (COM). Eustachian tube function (ETF) was assessed with various methods like impedance audiometry (Toynbee’s method), methylene blue dye etc. and correlation of graft uptake with preoperative eustachian tube function was done. Result: Out of 50 patients 78% had normal eustachian tube function and 22% had partially impaired eustachian tube function. Tympanoplasty was successful in 94% patients with normal eustachian tube function and 54% patients with partially impaired eustachian tube function. Conclusion: There is a strong association between eustachian tube function and graft uptake. Thus, proving that eustachian tube plays a major role in the graft uptake. So preoperative eustachian tube function should be done.

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Joshi, K. S., V. W. Q. Ho, M. E. Smith, and J. R. Tysome. "The effect of topical xylometazoline on Eustachian tube function." Journal of Laryngology & Otology 134, no. 1 (2020): 29–33. http://dx.doi.org/10.1017/s0022215120000158.

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AbstractBackgroundTopical nasal decongestants are frequently used as part of the medical management of symptoms related to Eustachian tube dysfunction.ObjectiveThis study aimed to assess the effect of topical xylometazoline hydrochloride sprayed in the anterior part of the nose on Eustachian tube active and passive opening in healthy ears.MethodsActive and passive Eustachian tube function was assessed in healthy subjects before and after intranasal administration of xylometazoline spray, using tympanometry, video otoscopy, sonotubometry, tubo-tympano-aerodynamic-graphy and tubomanometry.ResultsResting middle-ear pressures were not significantly different following decongestant application. Eustachian tube opening rate was not significantly different following the intervention, as measured by all function tests used. Sonotubometry data showed a significant increase in the duration of Eustachian tube opening following decongestant application.ConclusionThere remains little or no evidence that topical nasal decongestants improve Eustachian tube function. Sonotubometry findings do suggest that further investigation with an obstructive Eustachian tube dysfunction patient cohort is warranted.

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Smith, Timothy L., Douglas C. Diruggiero, and Kim R. Jones. "Third Place — Resident Clinical Science Award 1994: Recovery of Eustachian Tube Function and Hearing Outcome in Patients with Cleft Palate." Otolaryngology–Head and Neck Surgery 111, no. 4 (1994): 423–29. http://dx.doi.org/10.1177/019459989411100406.

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Eustachian tube dysfunction is a nearly universal complication of cleft palate, resulting in chronic ear disease and conductive hearing loss. Cleft palate repair is thought to result in recovery of eustachian tube function, but the length of time between repair and recovery of eustachian tube function is not known. Furthermore, the efficacy of tympanostomy tubes in the treatment of eustachian tube dysfunction and hearing sequelae has not been examined in a systematic way. To answer these questions, we performed a retrospective study that used serial audiometric data and tympanometry on 81 patients with cleft palates (162 ears), with follow-up ranging from 1 to 17.3 years. Average time to recovery of eustachian tube function was 6.0 years (range, 1.0 to 10.3 years) after cleft palate surgery. For children followed up for at least 6 years (longest follow-up, 17.3 years), 70% (67 of 85) had normal eustachian tube function at their last follow-up visit. Ears treated with Armstrong tympanostomy tubes required an average of 3.1 tubes per ear until recovery of eustachian tube function, whereas ears treated with Goode T tubes required only 1.1 tubes per ear ( p < 0.05). Hearing evaluation revealed that 67% of ears had abnormal hearing thresholds (>20 dB) before tympanostomy tube placement, whereas only 7.5% of ears demonstrated this loss after tube placement. Furthermore more than 90% of ears maintained normal thresholds after recovery of eustachian tube function. These data indicate that most children with cleft palates eventually recover normal eustachian tube function after palatoplasty, but for the majority of children, this does not occur for many years. Furthermore, the hearing loss before tympanostomy tube placement and palatoplasty largely resolves after aeration of the middle ear and does not result in any significant permanent hearing deficit.

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Augustine, A. M., L. Varghese, R. C. Michael, R. R. Albert, and A. Job. "The efficacy of dynamic slow motion video endoscopy as a test of eustachian tube function." Journal of Laryngology & Otology 127, no. 7 (2013): 650–55. http://dx.doi.org/10.1017/s0022215113001023.

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AbstractObjective:To assess the efficacy of dynamic slow motion video endoscopy as a test of eustachian tube function based on its correlation with the eustachian tube swallow test.Method:The eustachian tube swallow test and dynamic slow motion video endoscopy were performed on 100 clinically normal middle ears of adults undergoing rigid nasal endoscopy for various indications. The dynamic slow motion video endoscopy findings were interpreted by three observers who were blind to the results of the eustachian tube swallow test, and the findings of both techniques were compared.Results:There was a statistically significant correlation between the dynamic slow motion video endoscopy and eustachian tube swallow test results for some of the more lenient criteria. Five of the 100 eustachian tubes had a floppy medial cartilaginous lamina which appeared to contribute to the eustachian tube dysfunction.Conclusion:Dynamic slow motion video endoscopy appeared to over-diagnose eustachian tube dysfunction when used as a standalone test of eustachian tube function. However, when used in combination with other tests of eustachian tube function, it can provide valuable information regarding the structural and functional status of the pharyngeal end of the eustachian tube.

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Wake, M., D. E. McCullough, and J. D. Binnington. "Effect of nasogastric tubes on Eustachian tube function." Journal of Laryngology & Otology 104, no. 1 (1990): 17–19. http://dx.doi.org/10.1017/s0022215100111673.

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AbstractThe Eustachian tube acts as pressure equalizing tube between the nasopharynx and the middle ear. It also functions as a conduit for removal of secretions from the middle ear and mastoid air cell system into the post nasal space. Eustachian tube function may be assessed objectively using tympanometric measurements. (Brooks, 1968, Lutman, 1987).The post-operative use of nasogastric Ryles tubes is associated with reduced peak middle ear pressure (mmH2O) and reduced peak compliance volumes (ml) as assessed by tympanometry. In addition changes in the appearance of the tympanic membrane may occur with the protracted use of Ryles tubes. This phenomenon is a transient one.Nasogastric tube-induced Eustachian tube dysfunction is a previously unreported entity.

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Chaitanya, C. Bharadwaj, Giri Hanumant, Nayak Pooja, Kulkarni Deepti, and Shenoy Rahul. "Clinicoanatomical Relationship between Eustachian Tube Dysfunction and Middle Ear Disease." International Journal of Pharmaceutical and Clinical Research 14, no. 12 (2022): 1–10. https://doi.org/10.5281/zenodo.13207497.

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Objectives: The main objective of this study is to assess the ET function and its relationship with middle ear disease and outcome of tympanoplasty. Method: The patients, age ranges from 13 yrs to 55 yrs presented with perforation of tympanic membrane were selected. Anatomical evaluation of Eustachian tube patency was tested clinically, radiologically. Patients underwent tympanoplasty. Post operative results were analysed and compared with preoperative analysis of the Eustachisn tube function. Results: Total 30 patients were included in study, amongst whom 11 were males and 19 were females. Ear discharge followed by loss of hearing were main complaints preoperatively. Patients with normal Eustachian tube function preoperatively showed good results in terms of tympanic membrane healing and improvement in hearing. Patients with hypofunction or obstruction of Eustachian tube showed persistent of ear discharge, non-healing of tympanic membrane or non-improvement in hearing in postoperative period. Conclusion: There is positive correlation between the Eustachian tube dysfunction and middle ear disease. Patients with the Eustachian tube dysfunction in preoperative period has negative effect on surgical outcome.

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Doyle, William J. "Eustachian Tube Function." Annals of Otology, Rhinology & Laryngology 97, no. 4_suppl (1988): 36–41. http://dx.doi.org/10.1177/00034894880970s409.

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Ars, Bernard, and Joris Dirckx. "Eustachian Tube Function." Otolaryngologic Clinics of North America 49, no. 5 (2016): 1121–33. http://dx.doi.org/10.1016/j.otc.2016.05.003.

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Rasmussen, Niels. "Eustachian Tube Function." Ear, Nose & Throat Journal 77, no. 9 (1998): 722. http://dx.doi.org/10.1177/014556139807700903.

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Franz, B. K.-H. G., R. Patuzzi, C. J. Wraight, G. Kay, A. Ng, and C. R. Anderson. "Measuring dynamic Eustachian tube function using tympanometry in a pressure chamber: the effect of nasal betahistine application." Journal of Laryngology & Otology 133, no. 7 (2019): 580–87. http://dx.doi.org/10.1017/s0022215119001270.

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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.

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Bhat, Vikram, Gowri Marimuthu, Kiran Herur, and Mona Yadav. "Evaluation of Eustachian Tube Function in Mucosal Chronic Otitis Media: A Cost-Effective Method for Developing Countries." Annals of Otology and Neurotology 01, no. 02 (2018): 111–14. http://dx.doi.org/10.1055/s-0038-1675662.

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Abstract Background In the developing nations, the sinonasal region is routinely screened in chronic otitis media, but Eustachian tube is not as it is not cost-effective. Hence, we innovated an inexpensive device named Eustachian barotubometer. Materials and Methods A prospective case–control study was performed on mucosal type of chronic otitis media and traumatic tympanic perforation (100 cases each). Eustachian tube function was assessed by the Eustachian barotubometer (forced and physiological opening) and nasopharyngoscopy. Results Eustachian tube dysfunction was found to be five times higher in cases than controls. Both forced opening function and physiological opening function were poorer in cases than controls. However, the difference was statistically significant only in physiological opening function (p = 0.003). Among the cases with dysfunctional tubes, 86.7% were hypofunctional, whereas 13.3% were totally blocked. Conclusion Eustachian tube function was affected in 15% of cases of mucosal chronic otitis media as compared with controls in this study. This novel device could be conveniently used to help decide the right time to undertake middle ear surgery.

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Gupta, Sucheta, Mohit Goel, and Padam Singh Jamwal. "Evaluation of eustachian tube function in chronic suppurative otitis media with reference to its treatment outcome." International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 2 (2020): 297. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20200141.

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Background: The study was undertaken to find out Eustachian tube function in safe type of chronic suppurative otitis media and to study the comparison of graft uptake in normal, partially impaired and grossly impaired Eustachian tube function in safe type of chronic suppurative otitis media.Methods: The present prospective study was conducted in the Department of Otorhinolaryngology and Head and Neck surgery, Sri Maharaja Gulab Singh Hospital, Jammu during the period from November 2016 to October 2017. Patients were diagnosed clinically and also audiometrically by pure tone audiometry and impedance audiometry. Eustachian tube function test- Toynbee test was done in all the patients. Results: Out of 20 patients with normal Eustachian tube function, 19(95%) showed graft uptake. Out of 20 patients with partially impaired Eustachian tube function, 18 (90%) showed graft uptake. Out of 20 patients with grossly impaired Eustachian tube functions 13 (65%) showed graft uptake. Comparison of mean values of pre and post- operative air-bone (AB) gap with respect to normal, partially impaired and grossly impaired Eustachian tube functions is highly significant statistically with (p&lt;0.001).Conclusions: As seen in our study, functioning Eustachian tube is an important requirement for optimum outcome of myringoplasty. Testing the functions of Eustachian tube before surgery provides a possibility of predicting the possible outcome of myringoplasty or tymapanoplasty. This is also concluded that a partially functioning Eustachian tube should not be considered to be a contraindication to these surgeries as in many of these cases graft uptake and AB gap closure was good (90%).

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Teixeira, Miriam S. "Understanding Eustachian tube function." Brazilian Journal of Otorhinolaryngology 86, no. 5 (2020): 523–24. http://dx.doi.org/10.1016/j.bjorl.2020.02.001.

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Teixeira, Miriam S. "Understanding Eustachian tube function." Brazilian Journal of Otorhinolaryngology (Versão em Português) 86, no. 5 (2020): 523–24. https://doi.org/10.1016/j.bjorlp.2020.03.001.

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Downs, Brian W., Henry F. Butehorn, Jiri Prazma, Austin S. Rose, Jocelyn C. Stamat, and Harold C. Pillsbury. "Action of histamine on eustachian tube function." Otolaryngology–Head and Neck Surgery 124, no. 4 (2001): 414–20. http://dx.doi.org/10.1067/mhn.2001.113943.

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INTRODUCTION: The role of allergy in eustachian tube dysfunction is controversial. In this study, allergy was simulated by exposure to histamine, and eustachian tube function testing was performed in an experimental rat model. METHODS: Ventilatory function was assessed by measuring passive opening and closing pressures of the eustachian tube after challenge with either transtympanic or intranasal histamine. The mucociliary clearance time of the tubotympanum was assessed by observing dye transport from the middle ear to the nasopharynx after challenge with either transtympanic histamine or control solution. RESULTS: There was a statistically significant increase in passive opening and closing pressures with transtympanic histamine versus intranasal histamine. In addition, mucociliary clearance times of the tubotympanum after transtympanic histamine showed a statistically significant increase when compared with those after transtympanic control solution. CONCLUSIONS: Transtympanic histamine exposure causes eustachian tube dysfunction in the rat by increasing passive opening and closing pressures of the eustachian tube and impairing mucociliary clearance time.

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Schwartz, Ilsa, John A. Fornadley, and J. Kevin Burns. "The Effect of Surfactant on Eustachian Tube Function in a Gerbil Model of Otitis Media with Effusion." Otolaryngology–Head and Neck Surgery 110, no. 1 (1994): 110–14. http://dx.doi.org/10.1177/019459989411000113.

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The relationship of eustachian tube surfactant and otitis media with effusion on eustachian tube opening pressure was studied in a gerbil model. Injection of killed Streptococcus pneumoniae bacteria created a serous effusion that increased eustachian tube opening pressure. The introduction of exogenous surfactant to this system resulted in a dramatic decrease in eustachian tube opening pressure in both normal ears and those with effusion. Identifying means to increase surfactant in the eustachian tube could be beneficial in reducing persistent otitis media with effusion.

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Yaşar, Murat, Fatma Atalay, Abdulvahap Kahveci, and Zeynep Yavuz. "Evaluation of Eustachian tube function in Behçet᾿s disease: A case-control study." Archives of Rheumatology 39, no. 4 (2024): 558–65. https://doi.org/10.46497/archrheumatol.2024.10801.

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Objectives: The purpose of this study was to evaluate Eustachian tube function in patients with Behçet’s disease (BD). Patients and methods: Forty-six patients (22 males, 24 females; mean age: 42.1±11.3 years; range, 19 to 64 years) with BD and 46 (21 males, 25 females; mean age: 38.5±14.8 years; range, 19 to 63 years) age- and sex-matched audiologically healthy individuals were enrolled in this cross-sectional, case-control study between June 2023 and August 2023. Demographic and clinical characteristics of participants were recorded from electronic health records. All participants completed the Eustachian tube function test and the Eustachian tube dysfunction questionnaire 7 (ETDQ-7). Binary logistic regression analysis was employed to identify the factors that predict Eustachian tube dysfunction in patients with BD. Additionally, the association between disease duration and ETDQ-7 scores was evaluated using Spearman’s rank correlation. Results: The median ETDQ-7 scores were significantly higher in patients with BD than in controls (10 (7-32) vs. 7 (7-9); p<0.001). The number of ears with Eustachian tube dysfunction was also significantly higher in the BD group than in the controls (n=22, 47.8% vs. n=7, 15.2%; p=0.007). Regression analysis did not reveal statistically significant factors that predicted Eustachian tube dysfunction. Moreover, no statistically significant correlation was observed between Eustachian tube dysfunction and disease duration (R=–0.067; p=0.525). Conclusion: This study showed that Eustachian tube dysfunction is more prevalent in patients with BD than in the healthy controls. However, clinical and demographic variables were not found to be associated with Eustachian tube dysfunction.

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Pöyhönen, Leena, Ilkka Kivekäs, Juha Silvola, Dennis Poe, and Markus Rautiainen. "Mucociliary function of the eustachian tube in the eustachian tube dysfunction." Acta Oto-Laryngologica 139, no. 3 (2019): 238–42. http://dx.doi.org/10.1080/00016489.2018.1562218.

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Rathaur, Shiv Kumar, and Jagram Verma. "Effect of nasal obstruction surgery on eustachian tube function and middle ear ventilation." International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 6 (2020): 1054. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20202032.

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Background: The purpose of this study was to assess the effect of surgery for nasal obstruction in improving Eustachian tube function and middle ear ventilation.Methods: This prospective study involved 60 patients with different nasal pathologies causing nasal obstruction along with complaints of ear fullness. In required cases the nasal pathologies were surgically managed. Pre and postoperative impedance audiometric evaluation and nasal endoscopy were done to assess the eustachian tube function, changes the value of middle ear pressure and ear fullness sensation at 1 month and at 3 months after surgery. Results: Preoperatively, 56 (93.3%) patients had sensation of ear fullness, postoperatively at 1 month and at 3 months after nasal surgery only 20 (33.3%) patient and 18 (30%) respectively, has sensation of ear fullness, with signiﬁcant improvement (p&lt;0.05). Preoperatively, 74 (61.6%) ears were type A tympanogram, 50 ears of them had poor eustachian tube function and 24 ears had good Eustachian tube function. 42 (35%) ears were type C, 4 (3.3%) ear were type B tympanogram, all of them had poor eustachian tube function. The postoperative results of eustachian tube function test and tympanometric value were signiﬁcantly better than preoperative results (p&lt;0.05).Conclusions: We find out that nasal obstruction has a deﬁnite relationship with eustachian tube function. Surgery for nasal obstruction has a favourable effect on the middle ear pressure and eustachian tube function. Corrective surgery for nasal obstruction should be considered at least 1 month before undertaking the middle ear surgery to improve middle ear ventilation.

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Ohta, Shigeto. "The Eustachian Tube Function Test." Practica Oto-Rhino-Laryngologica 113, no. 5 (2020): 332–33. http://dx.doi.org/10.5631/jibirin.113.332.

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Smith, Matthew E., Andrew J. C. Blythe, Charlotte Baker, Charlie C. Zou, Peter J. A. Hutchinson, and James R. Tysome. "Tests of Eustachian Tube Function." Otology & Neurotology 38, no. 5 (2017): 714–20. http://dx.doi.org/10.1097/mao.0000000000001375.

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WEISSMAN, AMIR, DAN NIR, RAFAEL SHENHAV, ETAN Z. ZIMMER, ZVI H. JOACHIMS, and JOSHUA DANINO. "Eustachian tube function during pregnancy." Clinical Otolaryngology & Allied Sciences 18, no. 3 (2007): 212–14. http://dx.doi.org/10.1111/j.1365-2273.1993.tb00833.x.

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Sato, Hiroaki, Hajime Nakamura, Iwao Honjo, and Masahiko Hayashi. "Eustachian Tube Function in Tympanoplasty." Acta Oto-Laryngologica 110, sup471 (1990): 9–12. http://dx.doi.org/10.3109/00016489009124803.

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Park, Sang Hoo, Sangjun Kim, Dong Kun Lee, and Myung Koo Kang. "Efficacy of Evaluating Eustachian Tube Function by Using Eustachi." Journal of Clinical Otolaryngology Head and Neck Surgery 32, no. 1 (2021): 40–46. http://dx.doi.org/10.35420/jcohns.2021.32.1.40.

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Takeshi, Kusunoki. "Meanings of the Tympanic Mucosa Recovered By Tubotympanoplasty (A Long T-Shaped Solid Silicon Plate in Eustachian Tubal Orifice)." Meanings of the Tympanic Mucosa Recovered By Tubotympanoplasty (A Long T-Shaped Solid Silicon Plate in Eustachian Tubal Orifice) 2, no. 1 (2016): 079–81. https://doi.org/10.17352/2455-1759.000031.

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We used a surgical procedure suggested by Murata et al. and inserted a T-silicon plate from the tympanic cavity into the opening of the eustachian tube in 2 cases of chronic otitis media. The goal of this surgery was to promote the regeneration and the epithelization of residual mucosa of the eustachian tube. In our results, epitheliums of regenerated tympanic mucosa were histologically examined. Two patients with eustachian tube stenosis demonstrated increased ventilatory function of the eustachian tube and showed epithelium of regenerated mucosa extended toward the mesotympanic and the pretympanic space surrounding the opening of the eustachian tube. Electron microscopic examination of regenerated mucosa of the anterior tympanic cavity, obtained after tubotympanoplasty revealed stratifi ed ciliated epithelium. From above results, our technique suggested to improve the ventilatory function of the eustachian tube, and to promote formation of epithelium of regenerated tympanic mucosa.

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Akazawa, K., H. Doi, S. Ohta, et al. "Relationship between Eustachian tube dysfunction and otitis media with effusion in radiotherapy patients." Journal of Laryngology & Otology 132, no. 2 (2018): 111–16. http://dx.doi.org/10.1017/s0022215118000014.

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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.

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Harkare, Vivek, Komal Kakad, Sonali Khadakkar, et al. "Evaluation of Hearing Status and Eustachian Tube Function in Oral Submucous Fibrosis: A Cross Sectional Study." Bengal Journal of Otolaryngology and Head Neck Surgery 29, no. 3 (2022): 265–72. http://dx.doi.org/10.47210/bjohns.2021.v29i3.561.

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Introduction Oral Submucous Fibrosis (OSMF) in severe cases involves palatal and paratubal muscles of Eustachian tube leading to Eustachian tube dysfunction and hearing disabilities. This study aims to evaluate to evaluate hearing status and Eustachian tube function in patients of Oral Submucous Fibrosis and to correlate them with various groups of the disease. Materials and Methods A Cross Sectional study was carried out in a Tertiary Care Hospital on diagnosed patients of OSMF. Patients with hearing loss due to other middle ear pathologies or previous ear surgeries were excluded. Patients were classified into various Groups depending on the severityof the disease. They were subjected to Pure Tone Audiometry and Impedance Audiometry. Results obtained were statistically analysed. Results A total of 121 patients (242 ears) were included in the study. On Pure Tone Audiometry, minimal hearing loss was found in 20(8.26%) ears while mild and moderate hearing loss was seen in 26(10.74%) and 28(11.58%) ears respectively. On tympanometry, Type B and Type C tympanograms(abnormal) were seen in 36(14.88) and 26(10.74%) ears, respectively. On Eustachian Tube Function Test, out of 242 ears, 67 ears (27.68%) showed Eustachian tube dysfunction. On using Pearson’s chi square test, significant association was found between degree of hearing loss, type of tympanograms and eustachian tube function with various groups of OSMF (p value < 0.05). Conclusion OSMF may affect hearing efficiency and Eustachian tube function as the disease progresses.

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SHAPIRO, GAIL G. "The Face in Otitis Media." Pediatrics 75, no. 1 (1985): 131. http://dx.doi.org/10.1542/peds.75.1.131a.

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In Reply.— Sharon's impression that children with a specific facies might be more prone to otitis, if true, might mean that there is an association between certain facial growth pattern and aberrant Eustachian tube function. Along the same lines, there is limited evidence and much discussion about the incidence of ear problems being higher in allergic children; their Eustachian tubes are compromised by the changes induced by hypersensitivity reactions in the contiguous area. As intimated by Sharon, perhaps the sequelae of chronic rhinitis are twofold: facial growth abnormalities and Eustachian tube dysfunction.

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Cantekin, Erdem I. "Eustachian Tube Function in Children with Tympanostomy Tubes." Auris Nasus Larynx 12 (1985): S46—S48. http://dx.doi.org/10.1016/s0385-8146(85)80098-5.

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Gopalakrishnan, Gopika, and Shibu George. "Role of preoperative tympanometric evaluation of eustachian tube in patients undergoing type-1 tympanoplasty for chronic otitis media." International Journal of Otorhinolaryngology and Head and Neck Surgery 8, no. 5 (2022): 479. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20221059.

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Background: A dysfunctional eustachian tube can cause failure of middle ear pressure regulation which leads to chronic otitis media and tympanoplasty failure. The functional status of eustachian tube can non-invasively be assessed prior to tympanoplasty by impedence audiometry. This help to predict the outcome of the procedure as well as aid surgeons to plan the surgery accordingly. The aim of the study was to determine the role of pre-operative tympanometric evaluation of eustachian tube function in patients with chronic otitis media.Methods: This study was conducted on 42 patients with chronic otitis media underwent type-1 tympanoplasty in department of otorhinolaryngology, Government Medical College, Kottayam over a period of one year. Detailed history, clinical and audiological evaluation done. Type-1 tympanoplasty performed and reassessed after 3 months. Data compiled and analysed using SPSS.Results: Intra-operative findings were similar to the audiometric results. Majority of patients with dysfunctional eustachian tube got a non-satisfactory hearing outcome compared to patients with good eustachian tube function, and this comparison is statistically significant with p value 0.006. The graft uptake in patients with dysfunctional eustachian tube is poor compared to patients with good eustachian tube function, which is statistically significant with p value 0.013.Conclusions: Impedence audiometer can very reliably assess and ascertain eustachian tube dysfunction pre-operatively. The outcome of type-1 tympanoplasty in patients with eustachian tube dysfunction is uniformly poor. Better outcome probably would be gained by using more resilient materials like cartilage.

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Andric-Filipovic, Snezana, Ljiljana Janosevic, Vukasin Andric, and Aleksandar Ugrinovic. "Clinical evaluation of Eustachian tube transience and function in patients with different types of increased nasal resistance." Vojnosanitetski pregled 66, no. 5 (2009): 353–57. http://dx.doi.org/10.2298/vsp0905353a.

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Background/Aim. Eustachian tube is a connection between throat and the middle ear. Inflammatory processes and malformations of nasal cavity could lead to dysfunction of the whole upper respiratory tract, this emphasizing the evaluation of the Eustachian tube function both in surgery and in medicine in general. The aim of this study was to evaluate the Eustachian tube passage and function by tympanometry in different types of nasal resistance. Methods. Eustachian tube passage and function was tested in 102 patients with different types of nasal pathology and nasal resistance and compared to the results of 41 healthy persons with normal values of nasal resistance included in the control group. The patients with nasal pathology were divided into three subgroups: with mechanical, inflammatory and mixed alterations. Nasal resistance was carried out with constant body plethysmography (Jaeger). The test of Eustachian tube passage and function was performed using tympanometric Toynbee-deglutition/Valsalva-deglutition test. The results of measurements were compared with those in the healthy control group and analyzed by means of parametric and nonparametric statistic tests, Pearson ?2 test, Fisher test of exact probability and variance analysis. Results. The subgroup with inflammatory alterations had significantly higher values of pathological tympanograms than other subgroups and the control group (p < 0,05). The dysfunction of the Eustachian tube was significantly more present in all subgroups than in the control group (p < 0,05). Conclusion. Pathological form of tympanograms is more often present in purely inflammatory changes of nasal cavities with higher nasal resistance than in mechanical nasal obstruction. All forms of higher nasal resistance are more often accompanied with Eustachian tube dysfunction. There was no significant differences in Eustachian tube passage between the subgroups and the control group.

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Nemechek, Andrew J., Nima Pahlavan, and Donald N. Cote. "Nebulized Surfactant for Experimentally Induced Otitis Media with Effusion." Otolaryngology–Head and Neck Surgery 117, no. 5 (1997): 475–79. http://dx.doi.org/10.1016/s0194-59989770017-2.

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Eustachian tube dysfunction frequently results in clinical evidence of otitis media with effusion (OME). Surface active substances, surfactants, are hypothesized to play a role in normal eustachian tube function. Recent work in a rodent model has demonstrated improved eustachian tube function with topical application of surfactants to the middle ear. A novel, noninvasive, and clinically practical method of delivering surfactant to the eustachian tube was studied in a gerbil model of OME. Otitis media with effusion was experimentally induced in 20 gerbils by transtympanic inoculation of heat-killed Streptococcus pneumoniae. This represents a well established model for creating a serous effusion in the gerbil that significantly increases eustachian tube opening pressure. Effusion developed in 27 of 40 ears (67.5%) after inoculation. An inhaled nebulized surfactant was used to treat the animals with microscopically confirmed OME in one or both ears. The treatment period was 5 days. Eustachian tube opening studies were performed on both affected and nonaffected animals. Successful eustachian tube opening pressures were obtained in 30 of 36 ears (83.3%). The mean opening pressure for ears without effusion (healthy ears) was 42.8 mmHg. The mean opening pressure for ears with effusion in animals treated with nebulized surfactant was 41.4 mmHg. The difference between these mean values was not statistically significant ( t = 0.32; p > 0.50). This pilot study suggests that inhaled nebulized surfactant may be efficacious in treating eustachian tube dysfunction when manifested in disorders such as OME.

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Maier, Wolfgang, Rolf Hauser, and Gerd Münker. "Eustachian tube function in sudden hearing loss and in healthy subjects." Journal of Laryngology & Otology 106, no. 4 (1992): 322–26. http://dx.doi.org/10.1017/s0022215100119395.

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AbstractThe relationship between sudden hearing loss and an ipsilateral patulous tube was tested in ourEustachian tube laboratory. Fifty patients suffering from sudden hearing loss were examined by the pressure chamber impedance method, giving objective data on Eustachian tube function. Results were compared to those obtained from 56 healthy volunteers in a preceding investigation. Ourinvestigation did not show any associations between patulous tube syndrome and sudden hearing loss, as had been claimed by several authors previously. There was even indication of a decreased patency of Eustachian tube in our patients in active and passive tubal tests. We could demonstrate a high reproducibility of values obtained by our method, indicating that results are representative in healthy persons as well as in patients.In a case report the importance of objective diagnostic methods in differential diagnostics of Eustachian tube pathology is emphasized.

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Malm, Lars, and Örjan Tjernström. "Drug-Induced Changes in Eustachian Tube Function." Ear, Nose & Throat Journal 77, no. 9 (1998): 778–82. http://dx.doi.org/10.1177/014556139807700915.

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Many studies have shown that antihistamines and decongestants are of little use in the treatment of acute otitis media and otitis media with effusion, or in the prophylaxis of these disorders.1 However, because some drugs can improve otitis media with effusion (glycocorticosteroids)2–4 and some can impair the opening function of the eustachian tube (atropine),5 it seems justified to continue studies of eustachian tube function and medication.

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Fireman, Philip. "Nasal Provocation and Eustachian Tube Function." American Journal of Rhinology 2, no. 4 (1988): 169–75. http://dx.doi.org/10.2500/105065888781692989.

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Nasal provocation, which has played an important role in defining the pathophysiology of nasal diseases has been applied to studying the pathophysiology of eustachian tube function and middle ear diseases. The development of rhinomanometry has provided an objectivity to the assessment of nasal airway obstruction. In addition, the utilization of computer technology to assist in data management has provided a new dimension to this procedure that has enhanced its potential. Recent advances in our understanding of eustachian tube physiology and its relationship to the nasopharynx, plus the documentation of eustachian tube obstruction after nasal provocation, have enhanced the utility of these procedures. This occurred in conjunction with the development of an additional methodology, sonotubometry, to objectively measure eustachian tube obstruction. The ability to perform computer-assisted rhinomanometry and sonotubometry in series and also in conjunction with pulmonary function testing to quantify almost simultaneously several parameters of upper and lower airway obstruction has expanded the usefulness of these procedures. The lack of standardization of the several challenge procedures currently utilized has limited the development of these procedures as clinical tools. At the present time nasal provocation testing is used primarily for clinical investigation because previous definitive studies have not correlated symptoms with test results. There is a need to reassess the clinical application of these procedures in light of the recently developed technology. These have not been adequately explored and have not yet been utilized to their maximum potential. As the methodologies are more refined it is anticipated that nasal provocation testing will play an increasingly important role in studying the pharmacology and management of the allergic response.

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P., Hemalatha, and Vikram V. J. "Eustachian tube functional assessment among patients with CSOM undergoing tympanoplasty surgery." International Journal of Otorhinolaryngology and Head and Neck Surgery 5, no. 4 (2019): 906. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20192613.

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Background: Pre-operative test of eustachian tube (ET) function is important for achieving a satisfactory result of tympanoplasty for CSOM patients. The saccharin test and methylene blue test seems to provide adequate information of the mucociliary function and patency of the ET. The aim was to study the ventilatory and mucociliary function of Eustachian tube in patients with chronic suppurative otitis media planned for tympanoplasty surgery and to assess the success rate of tympanoplasty in relation to the Eustachian tube functionMethods: A prospective longitudinal study was conducted for a period of one year. Patients aged more than 15 years with features of chronic suppurative otitis media of either tubotympanic type or atticoantral type were included in the study. The total number of study subjects included in our study was 82 patients with CSOM. The ventilatory and the mucociliary functions of the auditory tube were assessed preoperatively using saccharin test and methylene blue test. All patients with CSOM underwent tympanoplasty surgery and the outcome of the surgery was assessed. Results: The overall success rate of tympanoplasty surgery was 76.8%. It was observed in our study that the success rate of tympanoplasty was higher among patients with normal eustachian tube function.Conclusions: Preoperative evaluation of eustachian tube function is mandatory for all the patients planned for tympanoplasty. Preoperative and intraoperative corrective measures should be taken in patients with partial and absent tubal function to improve the success rate of tympanoplasty surgeries.

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Ungar, O. J., E. Rosenzweig, H. Rotem Betito, O. Cavel, Y. Oron, and O. Handzel. "Eustachian tube dysfunction in candidates for surgery for obstructive sleep apnoea syndrome." Journal of Laryngology & Otology 134, no. 1 (2020): 81–85. http://dx.doi.org/10.1017/s002221512000002x.

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AbstractBackgroundDefining the risk factors for Eustachian tube dysfunction can facilitate its prevention. It is hypothesised that Eustachian tube dysfunction as measured by the Eustachian Tube Dysfunction Questionnaire-7 is associated with obstructive sleep apnoea syndrome.MethodsThe questionnaire was systematically translated into Hebrew and validated in the accepted manner. This questionnaire was applied to obstructive sleep apnoea syndrome patients before and after expansion sphincter pharyngoplasty, in pre-set time intervals. The results were compared to those of controls from the general population.ResultsThirty-one patients (males:females = 19:12) were enrolled in the obstructive sleep apnoea syndrome group. Mean age was 43 years (range, 31–55 years) and mean body mass index was 28 kg/m2 (range, 27–30 kg/m2). Median apnoea-hypopnea index (pre-operatively) was 34 events per hour. The questionnaire scores in expansion sphincter pharyngoplasty candidates were significantly worse than in controls (p < 0.001). Expansion sphincter pharyngoplasty did not change Eustachian tube function in the long term, but was associated with additional self-limiting Eustachian tube dysfunction in the first two post-operative months.ConclusionEustachian tube dysfunction is significantly worse in patients with obstructive sleep apnoea syndrome compared to controls. Expansion sphincter pharyngoplasty is not associated with Eustachian tube function improvement.

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Sando, Isamu. "Hand Demonstration of the Anatomy and Function of the Eustachian Tube." Otolaryngology–Head and Neck Surgery 112, no. 5 (1995): P58. http://dx.doi.org/10.1016/s0194-5998(05)80119-6.

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Educational objectives: To understand three-dimensional anatomy and function of the eustachian tube and consequently the pathology and dysfunction of the eustachian tube that are closely associated with those of the middle ear, such as otitis media with effusion, the second most common disease among children, next to the common cold.

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Schümann, Kerstin, Tamara Wilfling, Gerrit Paasche, et al. "Polymeric stents for the Eustachian tube: development and human cadaver study." Current Directions in Biomedical Engineering 6, no. 3 (2020): 213–16. http://dx.doi.org/10.1515/cdbme-2020-3054.

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AbstractImpairment of Eustachian tube function with nonsufficient ventilation of the middle ear is a main cause for chronic otitis media. To provide an effective and safe therapy, the innovative concept of Eustachian tube stenting was established. Biodegradable polymeric stents are developed to restore impaired tube function and dissolve after fulfilling their supportive purpose. To evaluate the applicability of the stents in the Eustachian tube, prototypes in conjunction with corresponding implantation instruments were tested in human cadaver studies. Radiopaque markers and a diaphanoscopic approach were tested as additional features to prove correct positioning of catheter and stent in the tube. In the current study biodegradable polymeric stents were implanted in the Eustachian tube of human cadavers without difficulty. Correct positioning of the stents in the tube was proved by diaphanoscopy during intervention and postoperative tomographic and histological analyses. Once designs are optimized on the basis of cadaver studies, preclinical safety and efficacy studies using animal models will be initiated.

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Antonelli, Patrick J., Steven K. Juhn, Marcos V. Goycoolea, and G. Scott Giebink. "Pseudomonas Otitis Media after Eustachian Tube Obstruction." Otolaryngology–Head and Neck Surgery 107, no. 4 (1992): 511–15. http://dx.doi.org/10.1177/019459989210700402.

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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.

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Maier, Wolfgang, Milo Fradis, Uwe Ross, and Bernhard Richter. "Middle Ear Pressure and Dysfunction of the Labyrinth: Is There a Relationship?" Annals of Otology, Rhinology & Laryngology 106, no. 6 (1997): 478–82. http://dx.doi.org/10.1177/000348949710600607.

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Relationships between middle ear pressure and non-infection-related cochleovestibular dysfunction have been suggested by several authors. According to some data, vertiginous attacks can be prevented by the insertion of a ventilation tube in patients suffering from Meniere's syndrome. The aim of our study was to investigate if the incidence of eustachian tube malfunction and pathologic middle ear pressure is frequent, and if routine implantation of ventilation tubes is reasonable in ears with dysfunctions of the labyrinth, including clinical Meniere's syndrome. So, we determined in our pressure chamber all active and passive parameters of eustachian tube function in 40 patients suffering from Meniere's syndrome, sudden sensory hearing impairment (SSHI), or vestibular neuronitis. Our results disclosed no nonrandom incidence of impaired tubal function among our patients compared to healthy control subjects. Pressure equalization was sufficient in most patients suffering from clinical Meniere's syndrome, and only one patient with vestibular neuronitis presented with a patulous tube. Our results show that impairment of vestibular or cochlear function is not regularly accompanied by eustachian tube dysfunction. Furthermore, no patient reported symptoms while pressure variation was performed. We conclude that variation of middle ear pressure does not usually play a role in the genesis of Meniere's syndrome, vestibular neuronitis, or SSHI. Thus, from our data, we cannot recommend routine implantation of tympanic ventilation tubes in patients suffering from Meniere's syndrome, vestibular neuronitis, or sudden hearing loss.

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Buchman, Craig A., William J. Doyle, and J. Douglas Swarts. "Eustachian Tube Function in the Ferret." Acta Oto-Laryngologica 113, no. 1 (1993): 75–80. http://dx.doi.org/10.3109/00016489309135770.

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Gupta, S. C., M. Malhotra, and M. Singh. "Eustachian tube function after transmyringeal ventilation." Indian Journal of Otolaryngology and Head and Neck Surgery 57, no. 1 (2005): 39–42. http://dx.doi.org/10.1007/bf02907625.

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Honjo, Iwao, Masahiko Hayashi, and Haruo Takahashi. "Clearance Function of the Eustachian Tube." Practica oto-rhino-laryngologica. Suppl. 1986, Supplement3 (1986): 67–75. http://dx.doi.org/10.5631/jibirinsuppl1986.1986.supplement3_67.

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Riedel, Catherine L., Terry L. Wiley, and Michael G. Block. "Tympanometric Measures of Eustachian Tube Function." Journal of Speech, Language, and Hearing Research 30, no. 2 (1987): 207–14. http://dx.doi.org/10.1044/jshr.3002.207.

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The purpose of this study was to develop instructions and procedures and to establish a normal data base for four tympanometric tests of Eustachian tube function: Valsalva, Toynbee, Inflation, and Deflation. Data were obtained for 24 young adults (48 ears) with normal hearing and normal middle-ear function. The tympanograms were analyzed for differences between baseline and experimental (postmaneuver) and baseline and posttest tracings for seven measures: tympanogram peak pressure, peak acoustic admittance, static acoustic admittance, negative gradient, positive gradient, and negative and positive acoustic-admittance values at ±400 daPa. The results indicated a statistically significant difference only in peak pressure for baseline and experimental tympanograms. Peak-pressure shifts were most pronounced for the Valsalva and Toynbee procedures. The small pressure shifts characteristic of the Inflation and Deflation procedures coupled with the potential for instrumental error severely limit the use of these procedures as means of obtaining reliable indices of tubal function.

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Honjo, Iwao. "Clearance Function of the Eustachian Tube." Annals of Otology, Rhinology & Laryngology 94, no. 5_suppl2 (1985): 29–30. http://dx.doi.org/10.1177/00034894850945s220.

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Farmer, Joseph C. "Eustachian Tube Function and Otologic Barotrauma." Annals of Otology, Rhinology & Laryngology 94, no. 5_suppl2 (1985): 45–47. http://dx.doi.org/10.1177/00034894850945s234.

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Meric, Aysenur, Remzi Dogan, Volkan Kahya, Sabri Baki Eren, Fahrettin Yilmaz, and Orhan Ozturan. "Eustachian Tube Function Following Total Laryngectomy." Journal of Craniofacial Surgery 23, no. 5 (2012): e502-e505. http://dx.doi.org/10.1097/scs.0b013e31826688a0.

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Balough, B. J. "Neural Control of Eustachian Tube Function." Yearbook of Otolaryngology-Head and Neck Surgery 2010 (January 2010): 121–22. http://dx.doi.org/10.1016/s1041-892x(09)79527-7.

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