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. 2019 Dec 13;10:1281. doi: 10.3389/fneur.2019.01281

Figure 6.

Figure 6

(A) Pretreatment scattergram of the 4-frequency air-conduction pure tone average audiometric data for the 8 patients who underwent RWR for management of their CFD (n = 8, Group 1). One subject (Table 1, Group 1 Patient 2) had a true conductive hearing loss with a pretreatment 4-frequency air-conduction pure tone average of 56.25 dB in his right ear; which had the CFD (see Figure 2). (B) Post-treatment scattergram of the audiometric data for 8 patients who underwent RWR for management of CFD. Six ears had no change in word recognition score (WRS), including the 1 ear with a true conductive hearing loss and CFD (Patient 2). One had an improvement of speech discrimination ability from 96 to 100%, while another had a decrease in speech discrimination from 96 to 92%. Including the ear of Patient 2 with the conductive hearing loss and CFD, the mean pre-operative air-conduction 4-frequency pure tone average was 19.7 dB (range 5–56.25 dB), while the mean post-operative air-conduction 4-frequency pure tone average was 22.8 dB (range 5–51.25 dB). As shown in the scatterplot (B), 5 ears had worsening of the 4-frequency air-conduction pure tone average; while 3 stayed the same or improved post-operatively. There was no statistically significant difference in the 4-frequency air-conduction pure tone average pretreatment compared to post-treatment (paired t-test, p = 0.472). Six ears had no change in WRS, including the 1 ear with a true conductive hearing loss and CFD (Patient 2). One patient had an improved WRS (96–100%) and one patient had a worsened WRS (96–92%). There was no statistically significant difference in the WRS pretreatment compared to post-treatment (paired t-test, p = 0.402). Copyright © P.A. Wackym, used with permission.