Relevant bibliographies by topics / Tympanometry

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Academic literature on the topic 'Tympanometry'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 April 2022

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Journal articles on the topic "Tympanometry"

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Biswas, Anirban, and Nilotpal Dutta. "Wideband Tympanometry." Annals of Otology and Neurotology 01, no. 02 (September 2018): 126–32. http://dx.doi.org/10.1055/s-0038-1676876.

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AbstractTraditional tympanometry done with 226 Hz probe tone frequency has some inherent defects and limitations due to which it does not give a very true picture of the middle ear status, and tympanometric findings are often very deceptive. It is not uncommon for otologists to find that on opening the middle ear, the pathology in the middle ear is very different from what they had expected from tympanometric findings. This is because the 226 or 220 Hz, that is used for the traditional single tone tympanometry is based on physical convenience, i.e., practicalities in carrying out the test rather than on test performance, i.e., the diagnostic efficacy of the test. The 226 Hz tympanometry is a poor predictor of middle ear effusions in babies and will be wrong in approximately 50% of cases and diagnosis of ossicular chain discontinuity by type A tympanogram is correct in only about 40% cases, if not lesser. In most cases of otosclerosis, though there is a middle ear stiffness, the tympanometric findings with traditional tympanometry show normal compliance, which is not expected in stiffness of the middle ear. Tympanometry is basically to identify common middle ear pathologies, such as middle ear effusion, ossicular chain discontinuity and otosclerosis. However, if in these very cases the diagnostic efficacy is so poor, then the objective of the test is lost. Traditional tympanometry has a lot of limitations and fallacies. These issues led scientists to sharpen the diagnostic efficacy of tympanometry and the final outcome of the research is wide band tympanometry (WBT). The special advantages of WBT, its difference from traditional single frequency tympanometry, and its clinical utility are presented in this article. Here, we review the concept of WBT, the basic mechanism, and its vast clinical applications. Most of the deficiencies of traditional tympanometry have been overcome by WBT. Not only that, the scope of tympanometry has been further widened by WBT and in addition to diagnosing middle ear pathologies with much more confidence, it can also be used for postoperative monitoring using non-pressurized wideband absorbance.
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Alper, Cuneyt M., Katherine D. Philp, Juliane M. Banks, and William J. Doyle. "Tympanometry Accurately Measures Middle Ear Underpressures in Monkeys." Annals of Otology, Rhinology & Laryngology 112, no. 10 (October 2003): 877–84. http://dx.doi.org/10.1177/000348940311201009.

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Tympanometry is useful for evaluating middle ear (ME) status, but its accuracy in estimating true ME pressure has been questioned. We evaluated the accuracy of tympanometry in 6 monkeys. Direct application and measurement of ME pressure were achieved with a probe introduced into the mastoid antrum, and tympanometry was done over a large range of applied ME pressures. For all ears, tympanometric pressure was a linear function of applied pressure. At large overpressures, the tympanometric pressure was approximately 40 mm H2O greater than the applied pressure, but there was little error in the measurement for applied underpressures. The measurement error was proportional to the ME pressure multiplied by the ratio of the extant volume displacement of the tympanic membrane to ME volume. These results show that in monkeys, tympanometry provides an accurate, relatively unbiased estimate of ME underpressure and suggest that the measurement error for tympanometry can be predicted for MEs of other species.
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Margolis, Robert H., Lisa L. Hunter, and G. Scott Giebink. "Tympanometric Evaluation of Middle Ear Function in Children with Otitis Media." Annals of Otology, Rhinology & Laryngology 103, no. 5_suppl (May 1994): 34–38. http://dx.doi.org/10.1177/00034894941030s510.

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Current tympanometry instruments allow a quantitative approach to the evaluation of middle ear function in children with otitis media. Conventional 226-Hz tympanograms can be characterized by static admittance, tympanometric width (gradient), tympanometric peak pressure, and equivalent volume. Multifrequency tympanograms obtained with probe frequencies ranging from 226 to 2,000 Hz appear to be sensitive to sequelae of otitis media that are not detected by conventional tympanometry or audiometry.
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Ramatsoma, Hlologelo, and Dirk Koekemoer. "Validation of a Bilateral Simultaneous Computer-Based Tympanometer." American Journal of Audiology 29, no. 3 (September 3, 2020): 491–503. http://dx.doi.org/10.1044/2020_aja-20-00013.

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Purpose This study aimed to investigate the accuracy of bilateral simultaneous tympanometric measurements using a tympanometer with two pneumatic systems inside circumaural ear cups. Method Fifty-two adults (104 ears), with a mean age of 32 years ( SD = 12.39, range: 18–60 years) were included in this study. A within-subject repeated-measures design was used to compare tympanometric measurements yielded with the investigational device in unilateral and bilateral simultaneous conditions compared with an industry-standard tympanometer. Results No significant bias ( p > .05) was found between the mean of the differences of tympanometric measurements yielded by the two devices, except for a significant bias ( p < .05) of the mean of the differences for ear canal volume measurements (0.05 cm 3 ). The Bland–Altman plots showed overall good agreement between the tympanometric measurements between the two instruments. In all 104 ears, the tympanogram types of the KUDUwave TMP were compared with the reference device. The results were highly comparable with a sensitivity and specificity of 100% (95% CI [86.8%, 100%]) and 92.3% (95% CI [84.0%, 97.1%]), respectively. Conclusions The investigational device is a suitable instrument for unilateral or bilateral simultaneous tympanometric measurements in adults and demonstrates the potential of decentralized and accessible tympanometry services.
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Mujahid, Mohammed Naseeruddin, and Syeda Ayesha. "Analysis of Tympanometric Attributes in Middle Ear Diseases and in Postoperative Middle Ear Surgeries - A Prospective Study at a Tertiary Hospital in Hyderabad, Telangana." Journal of Evolution of Medical and Dental Sciences 10, no. 45 (December 11, 2021): 3827–31. http://dx.doi.org/10.14260/jemds/2021/774.

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BACKGROUND Tympanometry as a definitive test protocol in the diagnosis of middle-ear disease and function remains still a tentative one. Primarily this is the result of cost effectiveness and concerns over referral to an audiology unit. It was also found to be due to the concerns over variability in test protocols and its influence on demographic and environmental factors. The present study was done to simplify the understanding of the different test variables of tympanometry. METHODS The clinical study was conducted in the Department of ENT, Deccan College of Medical Sciences and Princess Esra Hospital, Hyderabad. Out of 134 patients registered with loss of hearing, 68 patients were grouped as preoperative group (136 ears) and 66 patients as postoperative group (132 ears). The patients in both groups were registered at different times and they were not the same. Audiology equipment used was impedance audiometers (Siemens SD 30, interacoustics AT 235 H); portable tympanometer (Welch-Allyn). Preliminary pure tone audiometry was also done to supplement the diagnosis. The test results were reported as: conductive, sensorineural, and mixed hearing loss. The results were reported based on the variables/criteria: admittance, tympanometric peak pressure (TPP), peak amplitude (Ya peak) and the volume of the ear canal. RESULTS There were 39 males (57.35 %) and 29 females (42.64 %) in the preoperative group. There were 41 males (62.12 %) and 25 females (37.87 %) in the postoperative group. Middle ear diseases showing conductive deafness were grouped as four types: a) middle ear effusion (35 patients); b) Eustachian tube dysfunction (31 patients); c) Ossicular chain adhesions (38 patients) d) tympanic membrane perforations and tympanosclerosis (28 patients) and e) otosclerosis (02 patients). CONCLUSIONS Using tympanometric attributes such as admittance, tympanometric peak pressure, peak amplitude (Ya peak) and the volume of the ear canal, it was possible to make accurate diagnosis of middle ear diseases and their exact pathology or make a differential diagnosis. The attributes used gave much accurate measure of the mechano-acoustics than the preset values used regularly by many centres. KEY WORDS Impedance Audiometry (Tympanometry), Middle Ear Diseases, Compliance, Peak Pressure and Tympanometric Peak Pressure (TPP)
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Swanepoel, De Wet, Robert H. Eikelboom, and Robert H. Margolis. "Tympanometry Screening Criteria in Children Ages 5–7 Yr." Journal of the American Academy of Audiology 25, no. 10 (November 2014): 927–36. http://dx.doi.org/10.3766/jaaa.25.10.2.

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Background: Despite its value as a diagnostic measure of middle-ear function, recommendations for tympanometry as a screening test for middle-ear disorders have been tentative. This is primarily due to concerns related to over-referrals, cost-effectiveness, variability in referral criteria and protocols, variable reported screen performance, and influence of demographic and environmental factors. Purpose: The current study assessed tympanometry in a large population of children between 5–7 yr old in terms of normative ranges, performance of current recommended referral criteria, and associations with independent demographic and environmental variables. Research Design: Retrospective cohort study. Study Sample: A total of 2868 children and their families were originally enrolled in the Raine Cohort Study in Western Australia. Of these, 1469 children between 5–7 yr old (average age = 5.97 yr, SD = 0.17 yr) were evaluated with tympanometry and pure-tone audiometry screening. Data Collection and Analysis: Tympanometry was conducted using a 226 Hz probe tone with screening ipsilateral acoustic reflexes recorded using a 1000 Hz stimulus. Hearing screening was conducted using pure tones at 20 dB HL for 1000, 2000, and 4000 Hz. Relationships among normative ranges (90% and 95% ranges) for tympanometric indices, age, gender, and month of test were determined. Associations were also explored between tympanometry referrals and month of test, gender, and absence of acoustic reflexes. Results: Normative 90% ranges for tympanometric peak pressure was –275 to 15 daPa, 60–150 daPa for peak compensated tympanometric width, 0.2 and 1.0 mmho for peak compensated static admittance, and 0.7–1.3 cm3 for ear canal volume. Current screening guidelines result in high referral rates for children 5–7 yr old (13.3% and 11.5% using the American Speech-Language-Hearing Association [ASHA] and American Academy of Audiology [AAA] guidelines, respectively). The subgroup of children 6–7 yr old had referral rates (for ears tested) of only 3.3% and 2.7%, respectively, according to ASHA and AAA guidelines. The prevalence of middle-ear effusion (admittance <0.1 mmho) was significantly different across seasons, with the highest (13.5%) in September and lowest (3.8%) in January. Month of test was associated with a general decrease in tympanometric peak pressure across the population. Conclusions: An 80% reduction in tympanometry referrals for children ages 6 and 7 yr compared with children age 5 yr argues for tympanometry as a first-tier screening method in older children only. The impact of regional seasonal influences, representing an increase in referrals as high as 3.5 times from one month to another, should also inform and direct pediatric screening programs for middle-ear functioning and/or hearing loss.
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Macedo, Camila, Mariza Feniman, and Tamyne de Moraes. "Multifrequency tympanometry in infants." International Archives of Otorhinolaryngology 16, no. 02 (April 2012): 186–94. http://dx.doi.org/10.7162/s1809-97772012000200006.

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Summary Introduction: The use of conventional tympanometry is not sufficiently sensitive to detect all cases of middle ear changes, and this hinders accurate diagnosis. Objective: To characterize acoustic immittance measures of infants from 0 to 3 months of age using multifrequency tympanometry in a prospective study. Method: 54 infants from 0 to 3 months of age were evaluated. The inclusion criteria included absence of respiratory infections during the evaluation, presence of transient evoked otoacoustic emissions, and absence of risk indicators for hearing loss. The subjects were evaluated by an audiologic interview, a visual inspection of the ear canal, and measures of acoustic immittance at the frequencies of 226 Hz, 678 Hz, and 1,000 Hz. Tympanometric records of the occlusion effect, tympanometric curve type, tympanometric peak pressure, equivalent ear canal volume, and peak compensated static acoustic admittance were collected. Results: The results indicated the presence of an occlusion effect (2.88% at 226 Hz, 4.81% at 678 Hz and 3.85% at 1,000 Hz), predominance of a tympanometric curve with a single peak (65.35% at 226 Hz, 81.82% at 678 Hz, and 77.00% at 1,000 Hz), and tympanometric peak pressure ranging from -155 to 180 daPa. Further, the equivalent ear canal volume increased with the frequency of the probe (0.64 mL at 226 Hz, 1.63 mho at 678 Hz, and 2.59 mmho at 1,000 Hz) and the peak compensated static acoustic admittance values increased with an increase in frequency (0.51 mL at 226 Hz, 0.55 mmho at 678 Hz and 1.20 mmho at 1,000 Hz). 93.06% of the tympanograms were classified as normal at 226 Hz, 81.82% at 678 Hz, and 77.00 % at 1,000 Hz, respectively. Conclusion: Taken together, these results demonstrated that utilizing these evaluations made it possible to characterize the acoustic immittance measures of infants.
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Zheng, Wei, James D. Smith, Bing Shi, Yu Li, Yan Wang, Sheng Li, Zhaoli Meng, and Qian Zheng. "The Natural History of Audiologic and Tympanometric Findings in Patients with an Unrepaired Cleft Palate." Cleft Palate-Craniofacial Journal 46, no. 1 (January 2009): 24–29. http://dx.doi.org/10.1597/07-152.1.

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Objective: To present the tympanometric findings in 552 patients (115 over 10 years of age) with unrepaired cleft palate (256 had audiologic findings) and to show the natural history and outcome of these cases. Setting: The cleft lip and palate clinic for the Division of Cleft Lip and Palate Surgery at the West China College of Stomatology, Sichuan University, Chengdu, People's Republic of China. Design: Pure-tone audiometric and tympanometric evaluations were performed on 552 patients with an unrepaired cleft palate. Results were analyzed by looking at the patient's age and cleft palate type. Results: This study demonstrated an age-related decrease in the frequency of hearing impairment and abnormal tympanometry. The frequency of hearing impairment and abnormal tympanometry in patients with submucous cleft palate was significantly lower than in patients from the other four major cleft palate categories (p = .001, p = .006, respectively). Conclusions: The middle ear function and hearing levels of unrepaired cleft palate patients improved with age, but at least 30% of the patients’ ears demonstrated a hearing loss and abnormal tympanometry in each age group, including those over 19 years of age. In the crucial language-learning stage, the frequency of hearing impairment and abnormal tympanometry was as high as 60%. Considering these results, palate repair and surgical intervention, such as tube insertion, for otological problems should be considered at an early age.
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Hamid, Mohamed, and Kenneth H. Brookler. "Tympanometry." Ear, Nose & Throat Journal 86, no. 11 (November 2007): 668–69. http://dx.doi.org/10.1177/014556130708601116.

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Lazo-Sáenz, Juan Gerardo, Armando Alejando Galván-Aguilera, Verónica Araceli Martínez-Ordaz, Víctor Manuel Velasco-Rodríguez, Armando Nieves-Rentería, and Cuauhtémoc Rincón-CastañEda. "Eustachian Tube Dysfunction in Allergic Rhinitis." Otolaryngology–Head and Neck Surgery 132, no. 4 (April 2005): 626–29. http://dx.doi.org/10.1016/j.otohns.2005.01.029.

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OBJECTIVE: To assess eustachian tube function in patients with allergic rhinitis and compare them with a control group. STUDY DESIGN AND SETTING: Tympanometry was performed in 130 patients (260 ears), divided into 2 groups: 80 cases with allergic rhinitis and 50 healthy controls. Cases underwent skin hypersensitivity tests. RESULTS: Cases, age 21.1 ± 14.9; Controls, age 23.9 ± 15.6. Most frequent skin hypersensitivity: Dermatophagoides pt (62%), Zea Maiz (44%), and Cockroach (37%). Tympanometry of cases showed negative values of peak tympanometric pressure in both children and adults ( P ≤ 0.05). Among children under 11 years of age, 15.5% tympanograms showed abnormal curves (13% C curves and 3% B curves); among the control group only normal curves were found (type A). CONCLUSION: Allergic rhinitis patients have a higher risk of eustachian tube dysfunction, particularly during childhood. Tympanometry is a noninvasive, readily available procedure that may be useful in these patients to prevent chronic middle-ear disease.
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Dissertations / Theses on the topic "Tympanometry"

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Shahnaz, Navid. "Multifrequenzy, multicomponent tympanometry in normal and otosclerotic ears." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23934.

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Nine tympanometric measures were examined in 68 normal ears and 14 ears with surgically confirmed otosclerosis. Two parameters, static admittance and tympanometric width, were derived from standard low frequency tympanometry and two parameters, resonant frequency and frequency corresponding to admittance phase angle of 45$ sp circ$ (F45$ sp circ),$ were derived from multifrequency, multicomponent tympanometry. The results show the advantage of multifrequency, multicomponent tympanometry over standard low frequency tympanometry in differentiating otosclerotic ears from normal ears. In particular, for identifying high impedance pathologies, the present findings support the use of sweep frequency (SF) recording for measuring resonant frequency and frequency corresponding to admittance phase angle of 45$ sp circ$ (F45$ sp circ)$ and positive tail compensation for measuring resonant frequency. The relationship among the measures obtained in this study also revealed that two distinct signs are evident in the patient group; (1) an increase in the stiffness of the middle ear best shown by F45$ sp circ$ measured using SF method, and (2) an increase in the sharpness of the tympanogram best shown by tympanometric width. The combination of F45$ sp circ$ measured using SF method and tympanometric width separated normal from otosclerotic ears better than any single measure used in this study.
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Sung, Lui, and 宋蕾. "Multifrequency tympanometry and distortion product otoacoustic emissions in neonates." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31251110.

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Sung, Lui. "Multifrequency tympanometry and distortion product otoacoustic emissions in neonates /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22008342.

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Shahnaz, Navid. "Distinguishing otosclerotic ears from healthy ears using multifrequency and multicomponent tympanometry." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37837.

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The diagnostic utility of tympanometry with respect to distinguishing healthy and otosclerotic ears was investigated in four studies. This issue was examined with respect to alternative measures of static immittance (SI), tympanometric shape, resonant frequency (RF), and frequency corresponding to admittance phase angle of 45 degree (F45°) obtained from 68 healthy ears and 36 ears with surgically confirmed otosclerosis. Study 1 served to replicate previous findings that otosclerotic and healthy ears differ with respect to F45° and RF but not SI and TW measured at 226 Hz, thus confirming the advantage of multifrequency measures over standard low frequency tympanometric measures in differentiating healthy and otosclerotic ears. Studies 2 and 3 examined the effect of probe tone frequency on the diagnostic utility of SI and tympanometric shape. Group differences were evident for SI measured using a probe tone near the frequency corresponding to F45°, in the present study the optimal probe frequency was 630 Hz. Group differences were not evident for tympanometric width (TW) at 226 Hz, 350, and 450 Hz whereas the two groups differed in distribution of Vanhuyse patterns of 1B1G and 3B1G observed at frequencies between 800 Hz and 1250 Hz. In study 4 the diagnostic performance of five different tympanometric parameters was assessed using test performance and receiver operating characteristic (ROC) analysis. Results showed that F45° was the best single measure to distinguish healthy ears from otosclerotic ears; RF and SI measured at 630 Hz were the next best measures followed by Vanhuyse patterns; TW was the least useful measure. However, when compared using optimal decision criterion (derived from ROC analysis) differences in test performance for F45° and SI measured at 630 Hz were small suggesting that their clinical utility is comparable. Correlations and patterns of individual performance also confirm the presence of two independent signs of otoscle
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Ku, Jack Jek Kee. "High frequency (1000 Hz) tympanometry findings in newborn versus 3-week-old infants /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17884.pdf.

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Davis, Lindsey Brooke. "Efficacy of Audiologic and Otologic Outcome Measures to Predict Middle Ear Status." Miami University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1050962431.

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Lee, Juvy. "The utilization of transient evoked otoacoustic emissions and tympanometry in hearing screening of hearing-impaired children." Click to view the E-thesis via HKUTO, 1999. http://sunzi.lib.hku.hk/hkuto/record/B36209983.

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Thesis (B.Sc)--University of Hong Kong, 1999.
"A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, May 14, 1999." Also available in print.
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Cai, Anika. "Longitudinal investigation of middle ear function using multi-frequency, multi-component tympanometry from birth to six months of age." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/19329.

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Objectives: The specific goals of this study were: 1) To understand the mechano-acoustical properties of the normal ear canal and middle ear and its maturation as a function of age using conventional and high frequency tympanometry 2) to establish tympanometric guidelines and normative data of the normal ear canal and middle ear in infants birth to 6 months of age. Design: Thirty-one normal hearing newborns were tested longitudinally in 1-month intervals up to 6 months of age for a total of 6 visits. Tympanograms were recorded and the distributions of patterns were analyzed using the Vanhuyse model at 226 Hz, 678 Hz, and 1000 Hz. Additionally, tympanometric recordings of admittance (Ya), susceptance (Ba), and conductance (Ga) were analyzed at 226 Hz and 1000 Hz probe tones. Lastly, the variation of compensated susceptance and conductance were recorded at extended frequencies from 250-2000 Hz in 50 Hz intervals for 16 infants. Results: Results showed that 1000 Hz tympanograms were the simplest to quantify as most recordings were single-peaked. 226 Hz and 678 Hz recordings were often multi-peaked. Both positive and negative admittance and susceptance tail values increased with age for 226 Hz and 1000 Hz. However, tail values at 1000 Hz increased faster than for 226 Hz. Negative tail values were smaller compared to positive tail values which resulted in smaller compensated admittance values for the positive tails compared to negative tails across all 6 visits. Admittance magnitude decreased with age at 226 Hz as susceptance increased and conductance decreased. However, at 1000 Hz, admittance magnitude increased as susceptance remained relatively constant and conductance increase. Conclusion: Results suggest that the infant middle ear and ear canal develop towards compliance with age although is not yet a purely acoustically compliant system by 6 months of age, particularly at high frequencies. An increase in volume in the middle ear cavity, reduction of middle ear debris, and overall decrease in resistive elements may be contributing to these changes. Significant differences were observed between each visit and warrant the use of age-specific norms when applying tympanometric data to infants below 6 months of age.
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Fontes, Camila de Cássia Macedo. "Utilização de instrumento informatizado na avaliação da audição de lactentes com anomalias craniofaciais." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/61/61132/tde-13012015-165417/.

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Objetivos: Verificar a aplicabilidade de um procedimento de avaliação comportamental da audição em crianças com fissura labiopalatina, no que se refere ao tempo de duração da avaliação; ao número total de estímulos; ao número de estímulo controle e ao número de interrupções e, verificar os níveis mínimos de resposta auditiva destas crianças. Modelo: Estudo transverso Local de execução: Setor de Fonoaudiologia, Hospital de Reabilitação de Anomalias Craniofaciais, USP, Bauru. Participantes: Oitenta pacientes com fissura labiopalatina ou palatina, de ambos os gêneros, idade entre seis e vinte quatro meses, subdivididos em grupos etários: Grupo I 7 meses a 11 meses 29 dias (n= 12); Grupo II 12 meses a 17 meses 29 dias (n= 31); Grupo III 18 meses a 24 meses (n= 37). Intervenções: Entrevista audiológica, inspeção visual do meato acústico externo, avaliação eletroacústica (timpanometria nas frequências 226 Hz e 1000 Hz, emissões otoacústicas transientes) e audiometria de reforço visual informatizada em campo livre. Resultados: A média do nível mínimo de audição foi de 36 dB em todas as frequências para o Grupo I, 32 dB para o Grupo II e 31 dB para o Grupo III. Observou-se que os Grupos I e II tiveram maiores níveis mínimos de audição que o Grupo III. O Grupo I necessitou de maior número de estímulos totais, apresentando cansaço, agitação e tempo de atenção reduzido sendo necessário maior número de interrupções no exame, um tempo de duração do exame maior e uma menor porcentagem de controles corretos. Conclusão: A avaliação realizada por meio do ARVI permite estimar a audição de crianças na faixa etária de 7 a 24 meses em uma única sessão, em curto período de tempo, sem a necessidade de um segundo examinador durante a realização do exame.
Aim: Verify the applicability of a procedure for behavioral auditory of hearing in children with cleft lip and palate, with regard to the duration of the evaluation; the total number of stimuli; the number of stimulus control and the number of interruptions and verify the minimum levels of auditory response of these children. Model: Cross-sectional Location: Department of Speech Pathology and Audiology, Hospital for Rehabilitation of Craniofacial Anomalies, USP, Bauru. Participants: Eighty subjects with cleft lip and palate or palate, both genders, aged between seven and twenty-four. Interventions: anamneses, otoscopy, multifrequency tympanometry, evoked otoacustic emissions and intelligent visual reinforcement audiometry. Results: The mean of the minimum hearing level was 36 dB at all frequencies for Group I, 32 dB to Group II and 31 dB to Group III. We observed that Groups I and II had higher \"minimum levels\" of hearing that the Group III. Group I needed a greater number of total trials, showing tiredness, restlessness and short attention span and need more breaks in the examination, duration of greater examination and a lower percentage of correct controls. Conclusion: The assessment carried out by the IVRA allows estimating the hearing of children aged 7-24 months in a single session, in short time, without the need of a second examiner during the examination.
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Macedo, Camila de Cassia. "Timpanometria em lactentes com fissura labiopalatina utilizando sonda de multifrequência." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/61/61132/tde-29072010-102449/.

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Objetivos: O objetivo deste trabalho é descrever, comparar e analisar as características dos achados timpanométricos com sonda de tom prova nas frequências de 226 Hz, 678 Hz e 1000 Hz. Modelo: Estudo transverso Local de execução: Setor de Fonoaudiologia, Hospital de Reabilitação de Anomalias Craniofaciais, USP, Bauru. Participantes: Sessenta e oito pacientes com fissura labiopalatina, sem cirurgia prévia, de ambos os sexos, idade entre três e doze meses. Intervenções: anamnese, otoscopia e timpanometria de multifrequência. Resultados: Devido ao efeito de oclusão foi obtido 136 timpanogramas para a sonda de 226 Hz, 94 timpanogramas para a sonda de 678Hz e 135 timpanogramas para a sonda de 1000 Hz, em um total de 365 timpanogramas. A curva que demonstra maior ocorrência é a de Pico Único, isto nas três frequências de sonda: 79,41% em 226 Hz, 40,42% em 678 Hz e 37,04% em 1000 Hz. A curva de PD foi encontrada apenas nas frequências de 678 Hz e 1000 Hz com ocorrência de 5,32% e 1,48% respectivamente. O mesmo aconteceu com as curvas ASS e INV, sendo visualizadas 7,45% em 678 Hz; 8,89% em 1000 Hz para a curva ASS e 21,28% em 678 Hz, 24,44% em 1000 Hz para curva INV. A curva PL ocorreu em todas as freqüências de tom de sonda com porcentagem de 20,59%, 25,53%, 28,15% para as sonda de 226 Hz, 678 Hz e 1000 Hz, respectivamente. Conclusão: Nos achados timpanométricos dos lactententes deste estudo foram encontrados diferentes tipos de curvas, que incluíram os tipos Pico Duplo (PD), Assimétrica (ASS), Invertida (INV) e Plana (PL). Os resultados mostraram maior ocorrência de curvas do tipo Pico Único (PU) na sonda de 1000 Hz, para sonda de 226 Hz a prevalência foi de curvas do tipo PU apresentando também curva Plana (P). A sonda de 678 Hz apresentou todos os tipos de curvas, com uma maior ocorrência da curva do tipo PU.
Aim: This study aimed to describe, compare and analyze the characteristics of tympanometric findings with 226 Hz, 678 Hz and 1000 Hz tone probes. Model: Cross-sectional Location: Department of Speech Pathology and Audiology, Hospital for Rehabilitation of Craniofacial Anomalies, USP, Bauru. Participants: Sixty eight subjects with cleft lip and palate, non-operated, both genders, aged between three and twelve months. Interventions: anamneses, otoscopy and multifrequency tympanometry. Results: Given the occlusion effect, of 365 tympanograms, 136 were obtained for the 226 Hz probe, 94 for 678Hz and 135 for 1000 Hz probe. Single-peak curve was the most prevalent at the three probe frequencies: 79.41% at 226 Hz, 40.42% at 678 Hz and 37,04% at 1000 Hz. PD curve was found at 678 Hz and 1000 Hz occurring 5.32% and 1.48% respectively. ASS and INV curves were visualized 7, 45% at 678 Hz; 8,89% at 1000 Hz for ASS and 21,28% at 678 Hz, 24,44% at 1000 Hz for a INV curve. PL curve occurred in all frequencies at 20.59%, 25.53%, and 28.15% for the 226 Hz, 678 Hz and 1000 Hz probes, respectively. Conclusion: Different kinds of curves were found including: Double peak(DP), asymmetric (AS), inverted (INV) and plan (PL). Results indicated most prevalence of single-peak curves for 1000 Hz probe. The 226 Hz probe showed single-peak and plan curves as well. The 678 Hz probe showed all kinds of curves being the single-peak the most prevalent.
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Books on the topic "Tympanometry"

1

Principles of tympanometry. Rockville, Md: American Speech-Language-Hearing Association, 1986.

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van, Camp Karel J., ed. Principles of tympanometry. Rockville, Md: American Speech-Language-Hearing Association, 1986.

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Book chapters on the topic "Tympanometry"

1

Nakayama, J. Rie, and Mitchell J. Ramsey. "Tympanometry." In Encyclopedia of Otolaryngology, Head and Neck Surgery, 2905–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-23499-6_742.

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Van Camp, K. J. "Standards in tympanometry." In Surgery and Pathology of the Middle Ear, 271–72. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5002-3_72.

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Kochanek, Krzysztof, W. Wiktor Jedrzejczak, and Lech Śliwa. "Evaluation of partial deafness patients by means of auditory evoked potentials, otoacoustic emissions, and wideband tympanometry." In Methods of Partial Deafness Treatment, 353–68. London: Routledge, 2021. http://dx.doi.org/10.1201/9781003164876-14.

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Stokroos, R. J. "19 Tympanometrie." In Praktische vaardigheden, 101–2. Houten: Bohn Stafleu van Loghum, 2012. http://dx.doi.org/10.1007/978-90-313-8898-1_20.

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Ganz, H., and H. Niehaus. "Artefakte bei der Tympanometrie." In Teil II: Sitzungsbericht, 245. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83931-3_240.

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Amundsen, Gerald A. "Tympanometry." In Pfenninger and Fowler's Procedures for Primary Care, 479–81. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-323-05267-2.00075-3.

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Hein, Thais Antonelli Diniz, Stavros Hatzopoulos, Piotr Henryk Skarzynski, and Maria Francisca Colella-Santos. "Wideband Tympanometry." In Advances in Clinical Audiology. InTech, 2017. http://dx.doi.org/10.5772/67155.

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Corbridge, Rogan, and Nicholas Steventon. "Investigations in ENT." In Oxford Handbook of ENT and Head and Neck Surgery, 53–72. Oxford University Press, 2009. http://dx.doi.org/10.1093/med/9780199550791.003.04.

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Pure tone audiometry (PTA) 54 Tympanometry 56 Otoacoustic emissions (OAEs) 60 Auditory brainstem response (ABR) 62 ENG and calorics 64 Calorics 65 Children’s hearing assessment 66 CT scan 67 MRI scan 68 Allergy testing 70 This is the most common method used for assessing hearing. The examination will ideally take place in a soundproof booth. To avoid cheating, the patient should not be able to see the audiometer controls....
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Corbridge, Rogan, and Nicholas Steventon. "Investigations in ENT." In Oxford Handbook of ENT and Head and Neck Surgery, 57–75. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780198725312.003.0004.

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Diagnostic investigations used in ENT are described, along with their common usage and interpretation. Otological tests of pure tone audiometry, tympanometry, and otoacoustic emissions are explained. Special reference is made to paediatric hearing assessment and newborn hearing screening. Tests of peripheral vestibular function and their interpretation are included for reference. Radiological investigations, including computed tomography scanning, magnetic resonance imaging, and positron emission tomography are reviewed. The advantages and disadvantages of allergy testing by skin prick analysis and radioallergosorbent (RAST) blood tests are discussed.
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Conference papers on the topic "Tympanometry"

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Robinson, Sarah, Suzanne Thompson, and Jont B. Allen. "Characterizing the eardrum admittance: Comparisons of tympanometry and reflectance." In MECHANICS OF HEARING: PROTEIN TO PERCEPTION: Proceedings of the 12th International Workshop on the Mechanics of Hearing. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4939365.

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Binol, Hamidullah, Aaron C. Moberly, M. Khalid Khan Niazi, Garth Essig, Jay Shah, Charles Elmaraghy, Theodoros Teknos, Nazhat Taj-Schaal, Lianbo Yu, and Metin N. Gurcan. "Decision fusion on image analysis and tympanometry to detect eardrum abnormalities." In Computer-Aided Diagnosis, edited by Horst K. Hahn and Maciej A. Mazurowski. SPIE, 2020. http://dx.doi.org/10.1117/12.2549394.

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Stanzial, Domenico, Martina Buiat, and Giorgio Sacchi. "Wide band pressure and velocity (p-v) tympanometry with calibrated sound intensity micro-probes." In 164th Meeting of the Acoustical Society of America. ASA, 2013. http://dx.doi.org/10.1121/1.4776155.

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Condo, Sierra M., Leslie A. Simms, S. H. Mansy, Md Khurshidul Azad, Richard H. Sandler, Janel L. Cosby, and H. A. Mansy. "Effects of Intracranial Pressure on Tympanometric Parameters." In SoutheastCon 2018. IEEE, 2018. http://dx.doi.org/10.1109/secon.2018.8479156.

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Reports on the topic "Tympanometry"

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Forte, Jr, Devine V. A., Rock J. A., Cymerman P. B., and A. The Use of Tympanometry to Detect Aerotitis Media in Hypobaric Chamber Operations. Fort Belvoir, VA: Defense Technical Information Center, January 1992. http://dx.doi.org/10.21236/ada248963.

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Kimmel, Barry. An investigation of between-ear tympanometry measures in normal-hearing young adults. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.1614.

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Fine, Marguerite. An Investigation of Tympanometric Measurements on an Older Adult Population. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2170.

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Tympanometry. Rockville, MD: American Speech-Language-Hearing Association, November 1988. http://dx.doi.org/10.1044/policy.rp1988-00027.

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