Comparative analysis with regard to tinnitus distress, quality of life and hearing improvement between CI patients with single-sided deafness, asymmetric hearing loss and bilateral deafness
23 April 2019 (online)
Tinnitus is a common symptom in CI candidates, who can be divided into three groups: patients with single sided deafness (SSD), asymmetric hearing loss (AHL) and bilateral deafness (DSD). The aim of this study is the comparison of these groups with regard to tinnitus distress, health related quality of life (QOL) and hearing improvement without and with CI and therefore with binaural hearing.
94 postlingually deafened patients (SSD, AHL, DSD), who did not significantly differ with regard to age, duration of deafness, speech perception and tinnitus distress, were included in this prospective analysis between 11/2009 and 04/2016. The impact of CI on tinnitus distress (Tinnitus Questionnaire, TQ), QOL (Nijmegen Cochlear Implant Questionnaire, NCIQ) and speech perception (Freiburg Monosyllable Test, Oldenburg Sentence Test) was evaluated pre- and 6 months postoperatively for SSD, AHL and DSD patients.
Tinnitus prevalence varied between 72.7% (DSD, TQ Total Score 24.0 ± 19.40), 84.8% (SSD, TQ Total Score 32.6 ± 22.5) and 87.2% (AHL, TQ Total Score 28.7 ± 17.9). Before CI QOL (NCIQ Total) was significantly better in the groups SSD and AHL compared to the DSD group (p < 0.001).
Postoperatively there was a significant improvement of tinnitus distress (TQ Total) and speech perception (ES, OLSA) in all groups. Additionally the NCIQ scores of the DSD group adjusted the SSD and AHL scores, postoperatively the NCIQ Total score did not any more differ significantly between the three groups (p = 0.200).
The possibility of binaural hearing with CI is a great advantage for all groups (SSD, AHL, DSD) with regard to improvement of tinnitus distress, QOL and speech perception.