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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 initial 3-week hearing recovery rates among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. The degrees of recovery for comparison were complete, partial, slight recovery according to Siegel's criteria. Overall recovery is the sum of complete recovery, partial recovery, slight improvement. Analysis of variance with Bonferroni correction (*P<0.05).
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Figure 2: Comparison of initial 3-week hearing recovery rates among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. The degrees of recovery for comparison were complete, partial, slight recovery according to Siegel's criteria. Overall recovery is the sum of complete recovery, partial recovery, slight improvement. Analysis of variance with Bonferroni correction (*P<0.05).

Mentions: Considering these results, we evaluated a more large number of SSNHL with high degree hearing loss at 3 weeks (Fig. 2). The results show that if the initial hearing level is bad, it is unlikely to achieve complete recovery and likely to have a higher portion of no improvement. In particular, in the ≥100 dB group, no patient showed complete recovery, and the majority showed no improvement. There were significant differences in the rate of complete recovery among the 70 dB group and 90 dB group. Partial recoveries and slight improvements were however comparable among 70 dB, 80 dB, 90 dB groups. Evenstill ≥ 100 dB group showed significant less portion of partial recovery and slightly improvement compared to other groups. The overall recovery rate was 61.02% in the 70 dB group and 10% in the ≥100 dB group. The results showed that as the initial hearing level got worse, the recovery rate got lower. This is consistent with previous studies that reported initial hearing loss is a predictive factor for hearing recovery.


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 initial 3-week hearing recovery rates among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. The degrees of recovery for comparison were complete, partial, slight recovery according to Siegel's criteria. Overall recovery is the sum of complete recovery, partial recovery, slight improvement. Analysis of variance with Bonferroni correction (*P<0.05).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 2: Comparison of initial 3-week hearing recovery rates among the 70 dB group, 80 dB group, 90 dB group, and ≥100 dB group. The degrees of recovery for comparison were complete, partial, slight recovery according to Siegel's criteria. Overall recovery is the sum of complete recovery, partial recovery, slight improvement. Analysis of variance with Bonferroni correction (*P<0.05).
Mentions: Considering these results, we evaluated a more large number of SSNHL with high degree hearing loss at 3 weeks (Fig. 2). The results show that if the initial hearing level is bad, it is unlikely to achieve complete recovery and likely to have a higher portion of no improvement. In particular, in the ≥100 dB group, no patient showed complete recovery, and the majority showed no improvement. There were significant differences in the rate of complete recovery among the 70 dB group and 90 dB group. Partial recoveries and slight improvements were however comparable among 70 dB, 80 dB, 90 dB groups. Evenstill ≥ 100 dB group showed significant less portion of partial recovery and slightly improvement compared to other groups. The overall recovery rate was 61.02% in the 70 dB group and 10% in the ≥100 dB group. The results showed that as the initial hearing level got worse, the recovery rate got lower. This is consistent with previous studies that reported initial hearing loss is a predictive factor for hearing recovery.

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