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Criteria for detection of transiently evoked otoacoustic emissions in schoolchildren.

Abstract：

OBJECTIVES:The aim was to compare, on the same dataset, existing detection criteria for transiently evoked otoacoustic emissions (TEOAEs) and to select those most suitable for use with school-aged children. METHODS:TEOAEs were recorded from the ears of 187 schoolchildren (age 8-10 years) using the Otodynamics ILO 292 system with a standard click stimulus of 80dB peSPL. Pure tone audiometry and tympanometry were also conducted. Global and half-octave-band (at 1, 1.4, 2, 2.8, 4kHz) values of OAE signal-to-noise ratio (SNR), reproducibility, and response level were determined. These parameters were used as criteria for detection of TEOAEs. In total, 21 criteria based on the literature and 3 new ones suggested by the authors were investigated. RESULTS:Pure tone audiometry and tympanometry screening generated an ear-based failure rate of 7.49%. For TEOAEs, there was a huge variability in failure rate depending on the criteria used. However, three criteria sets produced simultaneous values of sensitivity and specificity above 75%. The first of these criteria was based only on a global reproducibility threshold value above 50%; the second on certain global reproducibility and global response values; and the third involved exceeding a threshold of 50% band reproducibility. The two criteria sets with the best sensitivity were based on global reproducibility, response level, and signal-to-noise ratio (with different thresholds across frequency bands). CONCLUSIONS:TEAOEs can be efficiently used to test the hearing of schoolchildren provided appropriate protocols and criteria sets are used. They are quick, repeatable, and simple to perform, even for nonaudiologically trained personnel. Criteria with high sensitivity (89%) were identified, but they had relatively high referral rates. This is not so much a problem in schoolchildren as it is in newborns because with schoolchildren pure tone audiometry and tympanometry can be performed immediately or at a follow-up session. Nevertheless, high referral rates lead to increased screening cost; for that reason, three less rigorous criteria with high values of both sensitivity and specificity (75% and above) are recommended.

journal_name

Int J Pediatr Otorhinolaryngol

journal_title

International journal of pediatric otorhinolaryngology

authors

Trzaskowski B,Pilka E,Jedrzejczak WW,Skarzynski H

doi

10.1016/j.ijporl.2015.06.028

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

1455-61

issue

eissn

0165-5876

issn

1872-8464

pii

S0165-5876(15)00304-3

journal_volume

pub_type

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Criteria for detection of transiently evoked otoacoustic emissions in schoolchildren.