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Diagnostic value of the wideband acoustic absorbance test in middle-ear effusion
S Terzi1, A Özgür1, Ö Ç Erdivanli1
1Department of Otorhinolaryngology,Medical Faculty,Recep Tayyip Erdoğan University,Rize,Turkey.
Insights
Wideband acoustic absorbance testing accurately detects middle-ear effusion in children. This objective method offers a superior alternative to traditional tympanometry for diagnosing otitis media with effusion.
Area of Science:
- Pediatric Otolaryngology
- Diagnostic Audiology
- Middle Ear Physiology
Background:
- Otitis media with effusion (OME) is a common pediatric condition requiring accurate diagnosis.
- Conventional 226-Hz tympanometry has limitations in diagnosing middle ear effusion.
- Wideband acoustic absorbance (WAA) testing offers a potentially more sensitive diagnostic tool.
Purpose of the Study:
- To evaluate the diagnostic accuracy of WAA testing for detecting OME in pediatric patients.
- To compare the performance of WAA testing against 226-Hz tympanometry.
Main Methods:
- Prospective study comparing WAA rates in healthy children, OME patients, and those with chronic effusion.
- Analysis of diagnostic value using receiver operating characteristic (ROC) curves.
- Inclusion of 34 healthy volunteers, 48 OME patients, and 28 patients with chronic effusion.
Main Results:
- Significantly lower WAA rates were observed in the OME group compared to healthy and chronic effusion groups (p < 0.017 and p < 0.001).
- ROC analysis demonstrated high diagnostic value for the 0.375-2 kHz averaged mean absorbance (AUC 0.984).
- Specific frequencies (1 and 1.5 kHz) also showed excellent diagnostic performance (AUCs 0.973 and 0.967).
Conclusions:
- WAA testing demonstrates superior accuracy in detecting middle-ear effusion compared to 226-Hz tympanometry.
- The objectivity and practicality of WAA testing make it a promising alternative diagnostic tool for OME.
- WAA testing provides a more reliable method for identifying middle ear effusion in pediatric populations.
Objectives:
This study aimed to investigate the diagnostic value of wideband acoustic absorbance testing in otitis media with effusion.
Methods:
This prospective study compared middle-ear wideband acoustic absorbance rates in three paediatric patient groups: a healthy group of 34 volunteers; 48 patients diagnosed with otitis media with effusion; and 28 patients with chronic effusion but no sign of effusion during myringotomy. The diagnostic value of absorbance testing was analysed with the receiver operating characteristic test.
Results:
The wideband acoustic absorbance rate was significantly lower in the otitis media with effusion group than in both the otitis media and healthy groups at the 0.375-2 kHz averaged mean absorbance (p < 0.017 and p < 0.001, respectively). Receiver operating characteristic analysis showed the highest diagnostic value for the 0.375-2 kHz averaged mean (area under the curve 0.984), followed by those at 1 and 1.5 kHz (area under the curve: 0.973 and 0.967, respectively).
Conclusion:
The wideband acoustic absorbance test is more accurate for detecting middle-ear effusion compared with conventional 226-Hz tympanometry. Its practicality and objectivity suggest that the wideband acoustic absorbance test may be a better alternative for diagnosing otitis media with effusion.
