Unaided and Aided ANL in Patients with Steep Drop Type of Hearing Loss
LIN Ying
CHEN Hanchao
ZHANG Guojun
Abstract：Objective The purpose of this study was to compare ANL values under unaided and aided conditions in subjects with steep drop type of hearing loss, as a measure of the effect of hearing aids. Methods Twenty subjects who had used hearing aids for over 6 months for steep drop type of hearing loss were selected. ANL values were measured under unaided and aided conditions, and the differences compared and analyzed using the SPSS19.0 software. Results①Unaided MCL (80.70 ± 8.05 dB HL) and BNL (73.75 ± 7.16 dB HL;) were higher than aided MCL and BNL (65.80 ± 9.03 dB HL and 59.25±6.93 dB HL, respectively) (P<0.001), while unaided and aided ANL values (6.95±4.20 dB HL vs 6.55 ± 4.21 dB HL) were not significantly different (P>0.05);②Real-ear analysis, which evaluates hearing aids ef-fectiveness, and ANL value showed a weak negative correlation (R=-0.2). Conclusions The ANL value may be used to predict effectiveness of hearing aids and guide hearing aid fitting in patients with steep drop type of hearing loss.
Keywords：ANLReal-ear TestEffect Evaluation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 523-526 )