5, 1, 2, and 4 kHz or a change in speech discrimination score
(SDS) of at least 15%.
Audiology revealed a flat severe sensorineural hearing loss with a speech reception threshold of 70 dB and a speech discrimination score
of 12% at 100 dB.
Further testing revealed that the patient had a 50-dB speech reception threshold (SRT) and an 84% speech discrimination score
(SDS) in the right ear, and a 30-dB SRT and a 92% SDS in the left ear.
Her speech reception threshold was 30 dB, and her speech discrimination score
was 88% at 70 dB hearing loss.
Audiometric testing in these patients may reveal a poor word discrimination score
that is out of proportion with the pure-tone hearing deficit.
Her speech reception threshold on the left was 20 dB, and her speech discrimination score
was 100% at 60 dB.
Speech audiometry showed a maximum discrimination score
of 0% at 80 dB in the right ear (representing socially useless hearing) and 100% at 80 dB in the left ear.
Over the course of 3 years, the patient's speech discrimination score
fell to 0% in the left ear despite the absence of tumor regrowth on imaging studies.
Audiometry confirmed the flat severe sensorineural hearing loss on the right and documented a speech reception threshold of 80 dB and a speech discrimination score
The patient's speech discrimination score
is usually less than 60%.
For patients with far advanced otosclerosis, you may perform a stapedectomy even if the speech discrimination score
A significant change in hearing was defined as a F pure-tone threshold shift >10 dB or a change in the speech discrimination score