Summary
It is significant to follow up patients with sudden deafness, because the change of hearing level after a long-term period and a differential diagnosis from Menière's disease must be studied. We reported the follow-up study of 27 patients with sudden deafness who were admitted to the Department of Otolaryngology of the Second Tokyo National Hospital. The duration of follow-up ranged from 6–58 months, with a mean duration of 23.7 months. In the Complete Recovery Group there was little change of mean hearing loss during the follow-up period. We could demonstrate that the once recovered hearing level rarely deteriorated afterwards, but the not recovered hearing level would sometimes deteriorate.
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Yoshida, A., Okamoto, K. Follow up study of sudden deafness. Arch Otorhinolaryngol 221, 77–80 (1978). https://doi.org/10.1007/BF00456386
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DOI: https://doi.org/10.1007/BF00456386