3.1 | Demographics
Eighty-eight patients with unilateral SSNHL performed ASSR testing. Of
these, 35 patients with ASSR thresholds above 90 dB HL were excluded
(Fig. 1). A total of 53 patients (23 men and 30 women) with a mean age
of 48.9 ± 16.1 (range 8-78) years were finally included in the study.
Twenty-one patients were included in the WASSR group and 32 patients
were included in the SBASSR group.
Table 1 shows the clinical information between WASSR and SBASSR groups.
Both groups had similar pure-tone thresholds and WRSs in both ears.
However, estimated ASSR threshold of the affected ear in the
WASSR group was significantly worse
than that in the SBASSR group (Z = -2.394, p = 0.017). Estimated
ASSR threshold of the unaffected ear was a slightly worse in the WASSR
group than SBASSR group, but which was not statistically significant (Z
= -1.859, p = 0.063). There were no significant differences in
age, sex, side of affected ear, medical history of DM, and associated
symptoms such as dizziness, tinnitus, or ear fullness between two
groups. All patients had high dose steroid therapy. The number of
patients who received ITD injections were similar between two groups.
The duration of follow-up was also similar between two groups.