Improvement in tinnitus distress, health-related quality of life and psychological comorbidities by cochlear implantation in single-sided deaf patients

Background Patients with single-sided deafness (SSD) lack the ability localize sound sources and have difficulty with speech-in-noise hearing. In addition, there is a high prevalence of tinnitus distress. These problems may result in reduced health-related quality of life (HRQoL) and psychological comorbidities. This study aimed to investigate the influence of treatment with a cochlear implant (CI) on HRQoL, tinnitus distress, psychological comorbidities, and audiological parameters in SSD patients. Methods This retrospective study included 20 patients with postlingually acquired SSD (13 women, 7 men, mean age 57.0 years). Data on HRQoL were collected with the Nijmegen Cochlear Implant Questionnaire (NCIQ) and the Medical Outcome Study Short Form 36 Survey (SF-36). Tinnitus distress was assessed with the Tinnitus Questionnaire (TQ), psychological comorbidities were evaluated with validated questionnaires, and speech perception and hearing ability were measured with validated speech tests. Results Postoperatively, the mean total NCIQ score ( p