Algumas considerações sobre colesteatomas adquiridos pediátricos e adultos

Dornelles, Cristina; Costa, Sady Selaimen da; Meurer, Luíse; Schweiger, Cláudia

doi:10.1590/s0034-72992005000400023

Cited by 17 publications

(3 citation statements)

References 56 publications

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“…There is no consensus in the literature regarding the influence of the type of cholesteatoma on hearing loss, or concerning the frequencies most affected. 11 , 13 , 14 , 15 , 16 , 17…”

Section: Introductionmentioning

confidence: 99%

Hearing loss assessment in primary and secondary acquired cholesteatoma

Olsen

Ribeiro

Yasui

et al. 2015

Brazilian Journal of Otorhinolaryngology

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“…There is no consensus in the literature regarding the influence of the type of cholesteatoma on hearing loss, or concerning the frequencies most affected. 11 , 13 , 14 , 15 , 16 , 17…”

Section: Introductionmentioning

confidence: 99%

Hearing loss assessment in primary and secondary acquired cholesteatoma

Olsen

Ribeiro

Yasui

et al. 2015

Brazilian Journal of Otorhinolaryngology

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“…Furthermore, facial paralysis might be caused by erosion of the facial canal and disturbances of the equilibrium organ due to detraction of the semicircular fistulas. Fortified inflammation causes mastoiditis, meningitis, intracranial abscesses, and sinus vein thrombosis [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Surgical Guidance for Removal of Cholesteatoma Using a Multispectral 3D-Endoscope

Wisotzky

Rosenthal

Wege

et al. 2020

Sensors

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We develop a stereo-multispectral endoscopic prototype in which a filter-wheel is used for surgical guidance to remove cholesteatoma tissue in the middle ear. Cholesteatoma is a destructive proliferating tissue. The only treatment for this disease is surgery. Removal is a very demanding task, even for experienced surgeons. It is very difficult to distinguish between bone and cholesteatoma. In addition, it can even reoccur if not all tissue particles of the cholesteatoma are removed, which leads to undesirable follow-up operations. Therefore, we propose an image-based method that combines multispectral tissue classification and 3D reconstruction to identify all parts of the removed tissue and determine their metric dimensions intraoperatively. The designed multispectral filter-wheel 3D-endoscope prototype can switch between narrow-band spectral and broad-band white illumination, which is technically evaluated in terms of optical system properties. Further, it is tested and evaluated on three patients. The wavelengths 400 nm and 420 nm are identified as most suitable for the differentiation task. The stereoscopic image acquisition allows accurate 3D surface reconstruction of the enhanced image information. The first results are promising, as the cholesteatoma can be easily highlighted, correctly identified, and visualized as a true-to-scale 3D model showing the patient-specific anatomy.

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“…4,11,12 Consensus opinion correlating the influence of the type of cholesteatoma on hearing loss or concerning the frequencies most affected is not available in literature. 11,13,14,15,16,17 Most studies have shown that there is an association between ossicular chain erosion and magnitude of hearing loss and that the most affected ossicle is the incus. 12,15,17 AIM: To evaluate the hearing loss in all types of cholesteatoma patients and analyse the association between nature of hearing loss and the type of cholesteatoma.…”

Section: Introductionmentioning

confidence: 99%

Audiological Evaluation in Patients of Csom With Cholesteatoma

M¹,

Seshaprasad²,

S³

2016

jebmh

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INTRODUCTION Cholesteatoma of the ear is a common disease encountered by otologists all over the world. Congenital, primary acquired and secondary acquired are the terms described to denote the types of cholesteatoma. All the above types cause deafness but the correlation between the type and degree of hearing loss remains doubtful. AIM To evaluate the hearing loss in all types of cholesteatoma patients and analyse the association between nature of hearing loss and the type of cholesteatoma. MATERIALS AND METHODS The present study is a cross-sectional cohort study of cholesteatoma patients undergoing surgery. Air, bone conduction thresholds, PTA, air bone gaps and preoperative ossicular status were studied and analysed in all types of cholesteatoma. RESULTS One hundred and sixty two patients aged between 8 and 65 were included in the study. Nineteen patients had congenital cholesteatoma, 58 had primary cholesteatoma and 85 had secondary cholesteatoma. All patients had increased air, bone conduction thresholds, PTA thresholds and large air bone gaps on pure tone audiometry, whereas secondary cholesteatoma patients showed higher mean values for loss of hearing across all frequencies compared to other types. CONCLUSIONS The correlation between losses of hearing and damage caused by cholesteatoma of all types especially acquired secondary type was evident from this study showing higher degrees of loss of hearing in all frequencies and larger air bone gap.

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Algumas considerações sobre colesteatomas adquiridos pediátricos e adultos

Cited by 17 publications

References 56 publications

Hearing loss assessment in primary and secondary acquired cholesteatoma

Hearing loss assessment in primary and secondary acquired cholesteatoma

Surgical Guidance for Removal of Cholesteatoma Using a Multispectral 3D-Endoscope

Audiological Evaluation in Patients of Csom With Cholesteatoma

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