Simulation of Pathological High Impedance Tympanograms

1986 ◽  
Vol 29 (4) ◽  
pp. 505-514 ◽  
Author(s):  
Karel J. Van Camp ◽  
Janet E. Shanks ◽  
Robert H. Margolis
Keyword(s):  
Tympanic Membrane ◽  
Otitis Media ◽  
Middle Ear ◽  
High Frequency ◽  
Secretory Otitis Media ◽  
High Impedance ◽  
The Relationship

The Vanhuyse, Creten, and Van Camp (1975) model for analyzing high frequency tympanograms predicts the shapes of conductance, susceptance, and admittance tympanograms from the relationship between resistance and reactance tympanograms at the tympanic membrane. This model has been applied primarily to low impedance middle-ear pathologies but has not been applied extensively to the more commonly occurring high impedance pathologies. The purpose of this study was to extend the Vanhuyse et al. (1975) model to high impedance pathologies and to identify tympanometric parameters associated with otosclerosis, secretory otitis media, and lateral ossicular fixation. Data from previous experiments on the shape and absolute values of resistance and reactance tympanograms were used to calculate 678-Hz admittance tympanograms that were unique to each of the three high impedance pathologies. Guidelines for differentiating among the middle-ear pathologies on the basis of high frequency tympanometric shapes are presented.

Air Conduction Thresholds and Secretory Otitis Media: A Conventional and Extra-High Frequency Audiometric Comparison

1989 ◽  
Vol 98 (10) ◽  
pp. 767-771 ◽  
Author(s):  
Iain W. S. Mair ◽  
Oddbjørn Fjermedal ◽  
Einar Laukli
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
High Frequency ◽  
Pure Tone ◽  
Low Frequency ◽  
Secretory Otitis Media ◽  
Middle Ear Fluid ◽  
Ventilation Tubes ◽  
Air Conduction

A comparison has been made of air conduction threshold changes up to 1 year after myringotomy, aspiration of middle ear fluid, and insertion of ventilation tubes in ten patients with bilateral and 12 with unilateral secretory otitis media (SOM). Pure tone air conduction thresholds have been analyzed in three frequency groups: Low frequency (LF; 0.25, 0.5, and 1 kHz), high frequency (HF; 2,4, and 8 kHz), and extra-high frequency (EHF; 10, 12, 14, and 16 kHz). In the LF and HF ranges, significant improvement came during the first 24 hours after intubation, while in the EHF range, threshold lowering occurred gradually over the following 2 months. Possible explanations for these findings are discussed.

scholarly journals Primary Middle Ear Meningioma with Intact Tympanic Membrane: A Case Report and Literature Review

2021 ◽  
pp. 014556132110581
Author(s):  
Yuan-Jun Liu ◽  
Lin Han ◽  
Jie Cao ◽  
Hong-Wei Zheng ◽  
Li-Sheng Yu
Keyword(s):  
Tympanic Membrane ◽  
Otitis Media ◽  
Middle Ear ◽  
Clinical Symptoms ◽  
Otitis Media With Effusion ◽  
Relevant Literature ◽  
Chronic Otitis Media ◽  
Secretory Otitis Media ◽  
Ectopic Meningioma ◽  
Intact Tympanic Membrane

Primary ectopic meningioma of the middle ear is relatively rare in clinical practice. It is often difficult to distinguish it from chronic otitis media or otitis media with effusion due to its similar and atypical clinical symptoms. We report a case of epithelial tympanic ectopic meningioma with the main complaints of otalgia, aural fullness, and hearing loss. It was accidentally discovered during tympanotomy due to the symptoms of recurring refractory secretory otitis media. This article briefly reviews the relevant literature in recent years, summarizes the characteristics of primary ectopic tympanic meningioma with intact tympanic membrane, and emphasizes the diagnosis and treatment strategy of the middle ear mass.

Long-term tympanic ventilation by Per-Lee tube

1986 ◽  
Vol 100 (5) ◽  
pp. 503-508 ◽  
Author(s):  
Alan G. Gibb
Keyword(s):  
Tympanic Membrane ◽  
Otitis Media ◽  
Middle Ear ◽  
Considerable Degree ◽  
Hearing Improvement ◽  
Secretory Otitis Media ◽  
Spontaneous Healing ◽  
Middle Ear Ventilation ◽  
Ventilation Tubes

AbstractThe fate of 32 Per-Lee ventilation tubes inserted by a single surgeon for secretory otitis media in children and adults is analysed over a 15-year period. There were no extrusions and 25 tubes were still functional at the time of the survey. The total ventilation time achieved by the 32 tubes was over 157 years. Seven tubes were removed on account of either obstruction or infection. Spontaneous healing of the tympanic membrane was uncertain following removal of the tube and a considerable degree of scarring was inevitable. Hearing improvement occurred while the tube was functioning and there were no cases of hearing deterioration. It is concluded that the Per-Lee tube is a suitable prosthesis for long-term middle-ear ventilation.

Sequelae of Secretory Otitis Media: Changes in Middle Ear Biomechanics

1997 ◽  
Vol 117 (3) ◽  
pp. 382-389 ◽  
Author(s):  
Michael Gaihede ◽  
Torben Lildholdt ◽  
Johnny Lunding
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
Secretory Otitis Media

scholarly journals Relationship between Acute Suppurative Otitis Media and Chronic Secretory Otitis Media: Role of Antibiotics

1984 ◽  
Vol 77 (9) ◽  
pp. 754-757 ◽  
Author(s):  
Robert Mills ◽  
Ann Uttley ◽  
Michelle McIntyre
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
Acute Otitis Media ◽  
Secretory Otitis Media ◽  
Sensitivity Testing ◽  
Suppurative Otitis Media ◽  
In Vitro Sensitivity ◽  
Resistance To Penicillin

A total of 204 chronic middle ear effusions from 122 children have been studied. Bacteria were isolated from 30 effusions. The commonest species found were Strep. pneumoniae and H. influenzae. These are also the commonest organisms causing acute otitis media (AOM). A similar pattern of serotypes was also demonstrated. In vitro sensitivity testing showed that most of the organisms isolated were sensitive to most commonly-used antibiotics. The main exception was resistance to penicillin amongst strains of H. influenzae and Staph. aureus. It is suggested that some cases of chronic secretory otitis media (SOM) may arise as a result of incomplete resolution of AOM and that the use of penicillin to treat AOM may be one factor in this process.

scholarly journals Influence of middle ear alterations on children's balance

2021 ◽  
Vol 31 (Supplement_2) ◽  
Author(s):  
Joana Ferreira ◽  
Carla Matos Silva ◽  
Inês Araújo
Keyword(s):  
Tympanic Membrane ◽  
Otitis Media ◽  
Middle Ear ◽  
Postural Balance ◽  
Sensory Integration ◽  
Type A ◽  
Clinical Test ◽  
Type B ◽  
Balance Performance ◽  
Balance Disorders

Abstract Background Postural instability is a possible symptom in children with otitis media, which often occurs in this population. The child with balance disorders usually has intolerance to sudden movements, difficulties in moving in the dark, nausea, vomiting and numerous fall events. To verify whether changes in the middle ear can influence the balance postural in children from 3 to 5 years. Methods The sample consisted of 31 children of both sexes, aged between 3 and 5 years. To collect data, a tympanogram was used to analyze the integrity of the tympanic membrane and the Modifid Clinical Test of Sensory Integration and Balance (MCTSIB), with four different sensory conditions, to assess static postural balance. Results Regarding the tympanogram, it was verified that the majority of the sample showed no changes, 45.2% of which were type A and 32.3% of type C1. Regarding the type B and C2 tympanogram, it was found that 12.9% of the sample had type B tympanogram and 9.7% type C2. When comparing these values with the MCTSIB results, there were no significant differences between the tympanogram with changes (B and C2) and the tympanogram without changes (A and C1), regarding the child's balance performance. Conclusions In this study, it was concluded that the alterations of the middle ear, proved through the tympanogram, did not influence the postural balance. However, it was found that the unilateral changes reported by the tympanogram, suggest higher values of postural oscillation, compared to bilateral changes.

scholarly journals Study of clinical and demographic profile of patients diagnosed with secretory otitis media

2017 ◽  
Vol 3 (3) ◽  
pp. 715
Author(s):  
Ajeet Kumar Khilnani ◽  
Viral Prajapati
Keyword(s):  
Tympanic Membrane ◽  
Otitis Media ◽  
Surgical Intervention ◽  
Tertiary Care ◽  
Complete Recovery ◽  
Treatment Modalities ◽  
Common Symptom ◽  
Secretory Otitis Media ◽  
Long Time ◽  
Bilateral Deafness

<p class="abstract"><strong><span lang="EN-US">Background:</span></strong>Secretory Otitis Media (SOM) is a common otological condition in children presenting most commonly with hearing loss. If untreated for long time, it can affect the language development of child. Its causes are multifactorial and treatment depends on the etiology. Various treatment modalities (medical and surgical) are available and they are administered in isolation or in combination. The objectives of the study were the present study was conducted with the objectives of knowing the most common age group affected by SOM, the common etiological factors of SOM and the outcome of various modalities of treatment of SOM.</p><p class="abstract"><strong><span lang="EN-US">Methods:</span></strong>This prospective study was conducted at a tertiary care teaching hospital of North Gujarat. IEC approval and consent from the patients were taken. 40 patients diagnosed with SOM were included in the study and their clinical and demographic details and treatment outcomes were studied.  </p><p class="abstract"><strong><span lang="EN-US">Results:</span></strong>Of the 40 patients, 65% were males. SOM was common in young children. Most of the cases (55%) were below 10 years of age. In 80% of cases SOM was bilateral. Deafness was the most common symptom (95%) with which patients presented with, followed by URTI and pain. All patients had impaired tympanic membrane mobility. Retraction of tympanic membrane was the next common otoscopic finding (85%). Initial management was medical and 18 patients required surgical intervention.</p><p class="abstract"><strong><span lang="EN-US">Conclusions:</span></strong>SOM is a common ear disorder in children. Initial medical treatment has a definitive role and should be tried in all cases before surgical intervention is contemplated. A variety of surgical procedures are available which can be used depending on the indication. Complete recovery is expected to occur in most of the cases by a period of 3-6 months.</p>

Impedance Audiometry Suggested

PEDIATRICS ◽  
1974 ◽  
Vol 54 (3) ◽  
pp. 384-384
Author(s):  
John A. McCurdy
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
Otitis Media ◽  
Middle Ear ◽  
Verbal Ability ◽  
Secretory Otitis Media ◽  
Suppurative Otitis Media ◽  
Significant Percentage ◽  
Children With Hearing Loss ◽  
Verbal Development

The findings of Kaplan et al.1 with respect to impairment of verbal ability in Alaskan children with hearing loss greater than 25 dB ISO secondary to chronic suppurative otitis media warrant renewed attention to a similar otologic problem which constitutes a threat to the verbal development of a significant percentage of all children—hearing impairment secondary to chronic secretory otitis media. Although the hearing loss in chronic secretory otitis media may fluctuate, a significant conductive impairment will persist as long as fluid remains in the middle ear.

Acute Suppurative Otitis Media

PEDIATRICS ◽  
1975 ◽  
Vol 56 (2) ◽  
pp. 285-294
Author(s):  
D. Stewart Rowe
Keyword(s):  
Otitis Media ◽  
Middle Ear ◽  
Pathogenic Bacteria ◽  
Acute Otitis Media ◽  
Polymorphonuclear Cells ◽  
Secretory Otitis Media ◽  
Middle Ear Mucosa ◽  
Suppurative Otitis Media ◽  
Middle Ear Fluid ◽  
Purulent Fluid

Most pediatricians recognize and treat acute otitis media several times each day. Yet there is wide disagreement about certain aspects of its diagnosis and treatment, despite a large and growing literature on the subject. This review attempts to summarize what is known about acute otitis media in children. DEFINITION Acute suppurative otitis media is distinguished from secretory (serous) otitis media by the presence of purulent fluid in the middle ear. Pathogenic bacteria may be cultured from the majority of needle aspirates of this purulent fluid. In secretory otitis media, relatively few polymorphonuclear cells are present in the middle ear fluid, which is either thin and straw-colored (serous) or thick and translucent grey (mucoid). The fluid has the chemical characteristics either of a transudate of plasma or of a mucoid secretion, presumably produced by goblet cells and mucous glands which are greatly increased in the middle ear mucosa of patients with secretory otitis media. Cultures of this middle ear fluid are usually negative for pathogenic bacteria and viruses. Suppurative otitis media can be diagnosed positively only by aspiration of purulent fluid from the middle ear, but this procedure is rarely necessary for initial diagnosis and management. Clinical findings helpful in distinguishing suppurative from secretory otitis media are discussed below. INCIDENCE In a study of 847 British children during the first five years of life, 19% had at least one episode of otitis media; one third of these had more than one episode. This was considered to be a minimal estimate in these children, since otorrhea was the chief criterion for diagnosis.

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