School-Age Outcomes in Preterm Children Born with Risk Factors for Hearing Loss: Contralateral Suppression of Transient Evoked Otoacoustic Emissions

AbstractIntroduction:The characteristics of otoacoustic emissions that make them ideally suited for universal newborn hearing loss screening could potentially be useful for the screening of older children. This study was performed in order to assess the role of otoacoustic emissions in a screening programme for middle-ear disorders and hearing loss in school-age children.Methods:Cross-sectional, preliminary screening study.Setting:Primary schools of Argolida municipality, south-east Greece, between December 2004 and March 2005.Patient selection and recruitment:All the primary school students of Argolida were invited, by press releases and individually by their teachers, to attend a session of otological and audiological screening.Results:One hundred and ninety-six children were evaluated using transient evoked otoacoustic emissions. Twenty per cent failed in both ears, while in 32 per cent otoacoustic emissions could not be produced in at least one ear. Younger children had higher rates of absent transient evoked otoacoustic emissions. The absence of otoacoustic emissions was highly correlated with tympanic membrane changes seen on otoscopy and the presence of a type B tympanogram. As a single screening modality, otoacoustic emissions had a 100 per cent sensitivity in diagnosing hearing loss worse than 30 dB, and a 90 per cent sensitivity and 64 per cent specificity in diagnosing hearing loss worse than 25 dB, which did not improve by adding tympanometry to the screening protocol.Conclusion:These results strongly suggest the potential usefulness of otoacoustic emission testing in screening school-age children for hearing loss. Further studies, taking into account cost-effectiveness issues, are indicated.

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A STUDY OF DRILL INDUCED HEARING LOSS IN THE CONTRALATERAL EAR FOLLOWING MASTOID SURGERY.

10.36106/gjra/5010373 ◽

2021 ◽

pp. 82-84

Author(s):

Ashima Kumar ◽

R.N. Karadi

Keyword(s):

Hearing Loss ◽

Temporal Bone ◽

Otoacoustic Emissions ◽

Drill Bit ◽

Transient Evoked Otoacoustic Emissions ◽

Contralateral Ear ◽

The Individual ◽

Mastoid Surgery ◽

Drilling Time

Background: Mastoidectomy is the mainstay of COM treatment . Usage of the micro motor drill has an effect on the contralateral ear due to the noise induced by the drill and the sound-conducting characteristic of the intact skull. Aims And Objectives: 1. To identify the drill induced hearing loss in the contralateral ear, by transient evoked otoacoustic emissions following mastoidectomy. 2. To identify the relation between the type of burr tip used and the amount of hearing loss. Methodology: This study consisted of 63 patients that underwent mastoidectomy. A pre-operative PTA and TEOAE was done. PTA was repeated on POD-1 and POD-7. TEOAE was done on POD-1,3 and 7. Intraoperatively, the type of burr tip used and the individual drilling time for each type of drill bit was recorded. Results: 37 patients developed transient SNHL by POD-3. All patients recovered by POD-30. Higher frequencies of 3000 Hz and 4000 Hz were commonly affected. No change was detected on PTA. Conclusion: The drill is not only a source of noise but is also a strong vibration generator. These strong oscillations are transmitted into the cochlea. Thus surgeons should select appropriate burrs and drills to minimize the temporal bone vibrations.

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Transient-Evoked Otoacoustic Emissions in Children after Cisplatin Chemotherapy

Otolaryngology ◽

10.1177/019459989811800504 ◽

1998 ◽

Vol 118 (5) ◽

pp. 584-588 ◽

Cited By ~ 1

Author(s):

Gregory C. Allen ◽

Christopher Tiu ◽

Kazunari Koike ◽

A. Kim Ritchey ◽

Marcia Kurs-Lasky ◽

...

Keyword(s):

Hearing Loss ◽

Middle Ear ◽

Cumulative Dose ◽

Otoacoustic Emissions ◽

Pediatric Patients ◽

Otoacoustic Emission ◽

Transient Evoked Otoacoustic Emissions ◽

Middle Ear Pressure ◽

High Cumulative Dose ◽

Middle Ear Disease

Little is known about cisplatin ototoxicity in pediatric patients. Measurement of otoacoustic emissions is a rapid, reproducible, objective method of evaluating hearing. We examined whether transient-evoked otoacoustic emissions in pediatric patients exposed to cisplatin in the past correlated with audiographic findings. Twelve patients were entered into the study (mean age at treatment 7.8 years, mean cumulative dose 442.5 mg/mm2, mean 7.1 doses). Hearing at 3000 Hz was preserved in 82.6% of patients. In the higher frequencies significant sensorineural hearing loss was noted: 43.5% at 4 kHz; 81.0% at 6 kHz; and 90.5% at 8 kHz. Transient-evoked otoacoustic emissions were measurable in 11 of 12 patients. Middle ear disease accounted for abnormal otoacoustic emission seen in three patients (1 with effusion, 2 with significant negative middle ear pressure). When the middle ear was normal, a statistically significant correlation was seen between the transient-evoked otoacoustic emissions reproducibility and pure-tone threshold (correlation coefficient = −0.69, p = 0.008). Increased hearing loss was also associated with young age at first dose of cisplatin ( p = 0.044), high number of chemotherapy cycles ( p = 0.042), and high cumulative dose ( p = 0.042). (Otolaryngol Head Neck Surg 1998;118:584–8.)

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