Abstract
Introduction: The sensorineural acuity level (SAL) test is a valuable clinical assessment for hearing diagnosis, especially when the results of pure tone audiometry (PTA) are incomplete or questionable. Nevertheless, the literature on the SAL test is extremely limited and more research efforts are warranted to promote the application of this test in clinical settings. Essentially, the aim of the present study was to compare the normative data for the SAL test between two different bone vibrators (Radioear B71 and Radioear B81) among Malaysian participants. Materials and Methods: Forty-two healthy Malaysian adults (aged 19 to 27 years) participated in this repeated-measures study. The PTA and SAL test was carried out according to the recommended protocols. The SAL normative data produced by the two bone transducers were then compared at different frequencies. Paired t-test and Bayesian inference were used for data analyses. Results: The normative data for the SAL test gathered in the present study were descriptively higher than those reported among Caucasian adults. Relative to the Radioear B81 bone vibrator, the SAL normative data were significantly higher for the Radioear B71 bone transducer at all tested frequencies (p < 0.001, BF10 ≥ 48.67). Conclusions: The SAL normative data established by the two bone vibrators are statistically different. This information would be beneficial to provide clinicians with appropriate normative data when performing the SAL test on Malaysian patients.
Highlights
The sensorineural acuity level (SAL) test is a valuable clinical assessment for hearing diagnosis, especially when the results of pure tone audiometry (PTA) are incomplete or questionable
Relative to the Radioear B81 bone vibrator, the SAL normative data were significantly higher for the Radioear B71 bone transducer at all tested frequencies (p < 0.001, BF10 ≥ 48.67)
The SAL normative data established by the two bone vibrators are statistically different
Summary
The sensorineural acuity level (SAL) test is a valuable clinical assessment for hearing diagnosis, especially when the results of pure tone audiometry (PTA) are incomplete or questionable. Blessed with two functioning ears, humans are able to enjoy everyday conversations, as well as to maintain body balance when pursuing routine activities [1]. If the hearing organs are affected due to specific causes, hearing loss and other related disorders would occur [1,2,3,4,5]. Those with compromised balance organs would experience symptoms such as vertigo (“spinning sensation”), imbalance and other dizziness related problems [1, 6-]. Timely clinical management is imperative to minimize the negative consequences of these ear disorders [1, 911].
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