A normative study of otoacoustic emissions, ear asymmetry, and gender effect in healthy schoolchildren in Slovakia

Pavlovčinová, Gabriela; Jakubı́ková, Janka; Trnovec, T.; Lancz, Kinga; Wimmerová, Soňa; Šovčíková, Eva; Palkovičová, Ľubica

doi:10.1016/j.ijporl.2009.11.002

Cited by 18 publications

(9 citation statements)

References 40 publications

(60 reference statements)

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“…There have been similar reports in the past supporting this notion. [17,18] The results of the present study are in consonance with the studies of Pavlovčinová et al, [19] and Kastanioudakis et al [20] While these studies were done on a smaller number of subjects, the present study confirms their findings with a larger database.…”

Section: Discussionsupporting

confidence: 92%

Distortion product otoacoustic emission fine-structure: An insight into the ear asymmetries

Sharma¹

2014

Indian J Otol

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is independent of age. Sharma and Sinha [7] studied 98 participants of different age groups and they reported a significant difference in the DPOAE fine-structure between the younger and the older age group.Currently, DPOAE is being utilized as an important measure for predicting hearing thresholds. Relationship between DPOAE amplitude levels and hearing thresholds has been reported in the past. Some authors [8][9][10] have documented a good agreement between low DPOAE levels and high auditory thresholds. This was true in a few of their subjects while in other subjects this relationship was not that good. Gaskill and Context: Use of distortion product otoacoustic emission (DPOAE) as a measure of hearing sensitivity is common in clinical practice. However, use of a more informative DPOAE fine-structure has been limited due to non-reliability of DPOAE fine-structure. Aim: The current study was aimed at testing the interaural differences between the DPOAE fine-structure across three age groups. Settings and Design: Acoustically treated room with a calibrated dual channel audiometer (Orbiter 922) along with TDH-39 headphones and B-71 bone vibrator. GSI Tympstar was used for tympanometry and acoustic reflex measurements while 'ILO V6' OAE analyzer was used for recording of DPOAE and DPOAE fine-structure. Material and Methods: A total of 98 subjects with normal peripheral hearing sensitivity were tested for DPOAE fine-structure. The three age groups consisted of young (8-18 years; n = 50), middle aged (30-40 years; n = 30), and elderly (50-60 years; n = 18). DPOAE fine-structure was studied at 8 points per octave on a total of 25 frequencies from 1000 to 8000 Hz. Statistical Analysis Used: Repeated measure analysis of variance. Results: There was a significant difference (P < 0.05) in the amplitudes at frequencies between 2000 and 3000 Hz. This was evident irrespective of the age groups. There was also a decrease in DPOAE amplitude in elderly group. Conclusions: Interaural asymmetry can be attributed as a reason to these findings and it occurred mostly in the speech perception frequencies. Reduced amplitude of DPAOE in the elderly group can be attributed to presbycusis. AbstrActAccess this article online Quick Response Code:Website: www.indianjotol.org

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Section: Discussionsupporting

confidence: 92%

Distortion product otoacoustic emission fine-structure: An insight into the ear asymmetries

Sharma¹

2014

Indian J Otol

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“…It should be underlined that this protocol was designed especially for fast detection of OAE presence [1]. Despite this fundamental characteristic, other researchers have used it for more advanced research on the status of hearing [27][28][29]. Analyses made in the present paper have shown that considerable low frequency information is lost, when the TEOAE response is windowed in the 2.5-12.5 ms range.…”

Section: Discussionmentioning

confidence: 84%

Otoacoustic emissions in neonates measured with different acquisition protocols

Jędrzejczak

Hatzopoulos

Śliwa

et al. 2012

International Journal of Pediatric Otorhinolaryngology

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“…We display the results of the I/O DPOAE test at 2 kHz for all children of our cohort, and separately for boys with regard to known sex differences in cochlear performance (Pavlovcinová et al 2010) (Fig. 4).…”

Section: Resultsmentioning

confidence: 99%

PCB exposure and cochlear function at age 6 years

Murínová

Moleti

Sisto

et al. 2016

Environmental Research

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Epidemiological studies have documented adverse associations between exposure to polychlorinated biphenyls (PCBs) and otological outcomes. Previously, we documented decreased distortion product otoacoustic emission (DPOAE) levels in children exposed to PCBs, up to the age of 45 months, amongst a cohort of children in eastern Slovakia. The objective of the present study is to evaluate cochlear dysfunction at 72 months of age in 214 children from this same cohort and to compare the otoacoustic test sensitivity to that of pure tone audiometry (PTA). The association between DPOAE, PTA, and PCBs was estimated by means of multivariate ANOVA (MANOVA) and linear regression models. ROC curves were computed to estimate the DPOAE-test power in children. The DPOAE level at 72 months was related to PCB-153 serum levels. The DPOAE Input/Output function test at mid-frequency (2 kHz) has shown instead nonmonotonic dependence on PCB exposure, for the left ears of children, over the whole growth curve. No significant association was found between PTA hearing levels and PCB-153 concentration. High diagnostic power of the DPOAE-test was found in children, similar to that found by the same authors in adults. In conclusions the DPOAE-PCB correlation obtained at 72 months is similar to that at 45 months suggesting a permanent and stable ototoxic effect of the PCB exposure. The lack of statistical significance of the PCB-PTA correlation suggests that DPOAEs are sensitive biomarkers of cochlear damage.

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A normative study of otoacoustic emissions, ear asymmetry, and gender effect in healthy schoolchildren in Slovakia

Cited by 18 publications

References 40 publications

Distortion product otoacoustic emission fine-structure: An insight into the ear asymmetries

Distortion product otoacoustic emission fine-structure: An insight into the ear asymmetries

Otoacoustic emissions in neonates measured with different acquisition protocols

PCB exposure and cochlear function at age 6 years

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