Tomographic evaluation of the contralateral ear in patients with severe chronic otitis media

Silva, Maurício Noschang Lopes da; Müller, Jader dos Santos; Selaimen, Fábio André; Oliveira, Daniele Sparemberger; Rosito, Letícia Petersen Schmidt; Costa, Sady Selaimen da

doi:10.5935/1808-8694.20130085

Cited by 14 publications

(11 citation statements)

References 9 publications

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“…In yet another study of pneumatization pattern of contralateral ears of severe COM, in Brazil, Mauricio [23] observed 65.3 % well pneumotized, 6.7 % diploic and 28 % sclerotic. Thus our findings are not only in agreement with other studies but also supports the doctrine that pneumatization gets poorer with growing chronicity of the disease.…”

Section: Pneumatization Pattern In Contralateral Normal Earsmentioning

confidence: 96%

Pneumatization Pattern in Squamousal Type of Chronic Otitis Media

Roy¹,

Deshmukh²,

Patil³

2015

Indian J Otolaryngol Head Neck Surg

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To study the pneumatization pattern of mastoid bone in cases of squamousal type of chronic otits media and analyze pneumatization pattern of opposite normal ear in cases of unilateral chronic otitis media (COM). A total of 94 patients (104 ears) between the age group of 7-84 years attending the E.N.T outpatients, inpatients and casualty of Acharya Vinoba Bhave Rural Hospital, Sawangi (Maghe), Wardha, after applying inclusion and exclusion criteria were found suitable and hence selected for the present study and were subjected to bilateral X-ray mastoid (Schuller's view). HRCT temporal bone done in selected 55 patients. On analyzing patients radiologically (X-ray mastoid), it was found that out 104 ears, mastoid was pneumatized in 2 (1.92 %) diploic in 20 (19.23 %) and sclerotic in 82 (78.85 %) ears. Contralateral mastoid of 70 normal ears, mastoid was pneumatized in 30 (42.86 %) diploic in 22 (31.43 %) and sclerotic in 18 (25.71 %) ears. Most of the diseased ear demonstrated non pneumatized mastoid (98.08 %) whereas contra lateral mastoid of 70 normal ear, showed significantly more pneumatization This difference is statistically significant (P value < 0.0001). Significantly more sclerosis and non pneumatization in the ear with COM of squamousal type than the healthy contralateral ear supports the environmental theory.

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Section: Pneumatization Pattern In Contralateral Normal Earsmentioning

confidence: 96%

Pneumatization Pattern in Squamousal Type of Chronic Otitis Media

Roy¹,

Deshmukh²,

Patil³

2015

Indian J Otolaryngol Head Neck Surg

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“…Since 2008, we have been studying the pathogenesis of chronic otitis media (COM) by examining the CLE [ 6 ]. Our observations have systematically shown a high prevalence of alterations in the CLE in clinical [ 6 ], histopathological [ 7 ], functional [ 8 ], and radiological [ 9 ] studies. Moreover, the frequency of alterations in the CLE was even higher in patients with cholesteatoma [ 6 , 10 ].…”

Section: Discussionmentioning

confidence: 97%

The Role of Tympanic Membrane Retractions in Cholesteatoma Pathogenesis

Rosito

Sperling

Teixeira

et al. 2018

BioMed Research International

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Objective To analyze the contralateral ear (CLE) of patients with cholesteatoma and to correlate the cholesteatoma growth pattern in the affected ear with the findings in the CLE. Methods Videotoscopy of both ears in 432 patients with cholesteatomas classified as posterior epitympanic (PEC), posterior mesotympanic (PMC), two routes, or undetermined. Tympanic membrane (TM) retractions were classified by location and severity and TM perforations according to signs of previous TM retraction. Results TM retraction was the most prevalent alteration in the CLE (42.6%). Cholesteatoma was observed in 17.4%. In patients with PEC, the retraction in the CLE was more frequent in the PF (66.7%) than in the PT (1.4%), and in those with two-route cholesteatoma, the retraction in the CLE most frequently involved both the PT and PF (65.6%; p < 0.0001). Conclusion Our results confirm the essential role of TM retraction at least in the earlier phases of cholesteatoma pathogenesis.

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“…Our group has been studying the CLE in patients with COM since 2008 [9]. Our clinical, histological, radiological and functional findings have systematically demonstrated a high frequency of alterations in the CLE [9][10][11][12] and an asymmetry between the two ears.…”

Section: Introductionmentioning

confidence: 98%

The contralateral ear in cholesteatoma

Costa

Teixeira

Rosito

2015

Eur Arch Otorhinolaryngol

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Middle ear cholesteatoma has been extensively studied. Theories of cholesteatoma pathogenesis involving previous tympanic membrane retraction are the most widely accepted, but the contralateral ear in patients with cholesteatoma remains unstudied. This study aimed to investigate the contralateral ear in patients with cholesteatoma, and to determine whether the characteristics of it differ according to patient age and cholesteatoma growth patterns. This study was cross sectional. We evaluated 356 patients with middle ear cholesteatoma in at least one ear, and no history of surgery, between August 2000 and March 2013. Otoendoscopy was conducted on both the affected and the contralateral ear. They were classified as normal, tympanic membrane perforation, moderate to severe tympanic membrane retraction and cholesteatoma. The mean age of the patients was 32.77 years, and 53.1 % of the cohort were female. Only 34.8 % of the contralateral ears were normal. The most common abnormality was moderate to severe tympanic membrane retraction (41.6 %). Cholesteatoma was identified in 16 %. Children exhibited a greater frequency of tympanic membrane retractions, whereas adults exhibited a greater frequency of cholesteatoma. All of the contralateral ears in the anterior epitympanic group were normal, but otherwise there were no differences in the contralateral ear when we compared the cholesteatoma growth patterns. We conclude that patients diagnosed with acquired cholesteatoma of one ear are significantly more likely to exhibit abnormalities of the contralateral ear.

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Tomographic evaluation of the contralateral ear in patients with severe chronic otitis media

Abstract: The prevalence of radiographic changes in the contralateral ears of patients with chronic otitis media corroborates with clinical, histopathological and functional resources developed by the same group that this disease has a bilateral feature.

Cited by 14 publications

References 9 publications

Pneumatization Pattern in Squamousal Type of Chronic Otitis Media

Pneumatization Pattern in Squamousal Type of Chronic Otitis Media

The Role of Tympanic Membrane Retractions in Cholesteatoma Pathogenesis

The contralateral ear in cholesteatoma

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