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Outcomes of Severe to Profound Idiopathic Sudden Sensorineural Hearing Loss.

Jo SY, Lee S, Eom TH, Jeun ES, Cho HH, Cho YB - Clin Exp Otorhinolaryngol (2015)

Bottom Line: For a long-term follow-up, 46 patients were evaluated.However, there was almost no recovery after 3 months.An early recovery can be a prognostic factor for the final recovery in severe to profound SSNHL.

View Article: PubMed Central - PubMed

Affiliation: Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Hospital, Gwangju, Korea.

ABSTRACT

Objectives: While a severe to profound sudden sensorineural hearing loss (SSNHL) may cause serious disability in verbal communication, there have been little studies focusing on this high degree SSNHL. The present study was aimed to investigate the characteristics of hearing recovery in a high degree SSNHL (>70 dB).

Methods: Three hundred and two SSNHL patients were enrolled. For a long-term follow-up, 46 patients were evaluated. Hearing level was examined by pure tone audiometry on day 1, week 3, month 3, month 6, and year 1 or after. According to the degree of the initial hearing loss, the patients were divided into 4 groups from 70 to ≥100 dB.

Results: After 3 weeks, the recovery rate and mean hearing gain was 61%, 23.85 dB in the 70 dB group, whereas 10%, 6.61 dB in the ≥100 dB group. There was a significant correlation between 3-week recovery and final hearing outcome. However, there was almost no recovery after 3 months.

Conclusion: An early recovery can be a prognostic factor for the final recovery in severe to profound SSNHL. Since recovery after 3 months is rare, an early hearing intervention like hearing aid or cochlear implantation should be considered in the high degree SSNHL to restore the patient's verbal communication.

No MeSH data available.


Related in: MedlinePlus

Comparison of hearing gain during initial 3-week period among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. Note that in the 70 dB group, there cannot be a gain value exceeding 70 dB. The degree of hearing gain is lower in the highest grade hearing loss group.
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Figure 3: Comparison of hearing gain during initial 3-week period among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. Note that in the 70 dB group, there cannot be a gain value exceeding 70 dB. The degree of hearing gain is lower in the highest grade hearing loss group.

Mentions: The level of 3-week hearing gain by a 10-dB degree difference in each group was also studied (Fig. 3). The mean hearing gain was 23.85 dB in the 70 dB group, 23.94 dB in the 80 dB group, 19.03 dB in the 90 dB group and 6.61 dB in the ≥100 dB group. The average hearing gain was 18.36 dB overall. The mean hearing gain of the other groups was higher than that of the ≥100 dB group with statistical significance.


Outcomes of Severe to Profound Idiopathic Sudden Sensorineural Hearing Loss.

Jo SY, Lee S, Eom TH, Jeun ES, Cho HH, Cho YB - Clin Exp Otorhinolaryngol (2015)

Comparison of hearing gain during initial 3-week period among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. Note that in the 70 dB group, there cannot be a gain value exceeding 70 dB. The degree of hearing gain is lower in the highest grade hearing loss group.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4553349&req=5

Figure 3: Comparison of hearing gain during initial 3-week period among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. Note that in the 70 dB group, there cannot be a gain value exceeding 70 dB. The degree of hearing gain is lower in the highest grade hearing loss group.
Mentions: The level of 3-week hearing gain by a 10-dB degree difference in each group was also studied (Fig. 3). The mean hearing gain was 23.85 dB in the 70 dB group, 23.94 dB in the 80 dB group, 19.03 dB in the 90 dB group and 6.61 dB in the ≥100 dB group. The average hearing gain was 18.36 dB overall. The mean hearing gain of the other groups was higher than that of the ≥100 dB group with statistical significance.

Bottom Line: For a long-term follow-up, 46 patients were evaluated.However, there was almost no recovery after 3 months.An early recovery can be a prognostic factor for the final recovery in severe to profound SSNHL.

View Article: PubMed Central - PubMed

Affiliation: Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Hospital, Gwangju, Korea.

ABSTRACT

Objectives: While a severe to profound sudden sensorineural hearing loss (SSNHL) may cause serious disability in verbal communication, there have been little studies focusing on this high degree SSNHL. The present study was aimed to investigate the characteristics of hearing recovery in a high degree SSNHL (>70 dB).

Methods: Three hundred and two SSNHL patients were enrolled. For a long-term follow-up, 46 patients were evaluated. Hearing level was examined by pure tone audiometry on day 1, week 3, month 3, month 6, and year 1 or after. According to the degree of the initial hearing loss, the patients were divided into 4 groups from 70 to ≥100 dB.

Results: After 3 weeks, the recovery rate and mean hearing gain was 61%, 23.85 dB in the 70 dB group, whereas 10%, 6.61 dB in the ≥100 dB group. There was a significant correlation between 3-week recovery and final hearing outcome. However, there was almost no recovery after 3 months.

Conclusion: An early recovery can be a prognostic factor for the final recovery in severe to profound SSNHL. Since recovery after 3 months is rare, an early hearing intervention like hearing aid or cochlear implantation should be considered in the high degree SSNHL to restore the patient's verbal communication.

No MeSH data available.


Related in: MedlinePlus