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| ID | Type | Description | Link |
|---|---|---|---|
| 292855 | Other Identifier | IRAS project ID |
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| Name | Class |
|---|---|
| Nottingham University Hospitals NHS Trust | OTHER |
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Objectives of this study are to (1) Determine whether there are meaningful changes in tinnitus outcomes following cochlear implantation in adults with bilateral severe-to-profound hearing loss, (2) Determine the prevalence, nature, and severity of tinnitus before cochlear implantation, (3) Determine the incidence, nature, and changes in severity of tinnitus following cochlear implantation, and (4) Explore associations between tinnitus and changes in hearing, psychological health, cochlear implantation-related factors, and quality of life in cochlear implant recipients with and without tinnitus.
Participants will be adults eligible to receive a unilateral cochlear implant on the National Health Service (NHS) in the United Kingdom (UK). Participants will undergo routine pre- and post-operative assessments as part of usual care, and complete online questionnaires before and after implantation to measure tinnitus and other health related factors. Mixed statistical methods will be used to characterise the sample and evaluate changes in the severity of tinnitus and patient-specific factors after implantation.
Primary objective:
Determine whether there are meaningful changes in tinnitus outcomes following cochlear implantation in adults with bilateral severe-to-profound hearing loss.
Secondary objectives:
Patient identification:
Providers of cochlear implantation services on the National Health Service in the United Kingdom.
The schedule of questionnaires will follow the schedule of routine clinical appointments as part of the cochlear implantation care pathway including a pre-operative baseline assessment, and five follow up assessments after the surgery to receive the cochlear implant, after the first cochlear implant activation appointment, and at routine 1-, 3- and 6-month appointments post-activation. The baseline questionnaires will require about 40 min to complete and follow up questionnaires about 15-30 min.
Detailed analyses will be specified prospectively in a study analysis plan developed by the study team. Data analyses will be conducted by the study team with support from medical statisticians at the National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre (BRC). The software utilised for analyses may include Excel, SPSS, R or MATLAB. Mixed statistical methods will be used to characterise the sample and evaluate changes in the severity of tinnitus and patient-specific factors before and after implantation. Data analyses will include descriptive statistics, General/Generalised Linear Models (e.g., ANOVA, regression models) or non-parametric statistical methods where appropriate (e.g., Mann Whitney U test).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Cochlear implant recipients | This study involves no clinical interventions beyond cochlear implantation that will be already available to participants as part of their routine care pathway. Participants will undergo routine pre- and post-operative assessments as part of usual care. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Cochlear implant | Device | Cochlear implant |
|
| Measure | Description | Time Frame |
|---|---|---|
| Tinnitus characteristics and associated medical and sociodemographic factors | The European School for Interdisciplinary Tinnitus Research Screening Questionnaire (ESiT-SQ). This is a case history questionnaire without a numerical scoring system. | Before cochlear implantation, two weeks after cochlear implantation, immediately after the activation of the cochlear implant, and one, three and six months after the activation of the cochlear implant |
| Tinnitus impact | Tinnitus Functional Index (TFI). Maximum score: 250, higher score indicates greater tinnitus symptom severity | Before cochlear implantation, two weeks after cochlear implantation, immediately after the activation of the cochlear implant, and one, three and six months after the activation of the cochlear implant |
| Patient health | Patient Health Questionnaire (PHQ-9) scores can range from 0 to 27 with a higher score indicating more severe symptoms | Before cochlear implantation, two weeks after cochlear implantation, and one, three and six months after the activation of the cochlear implant |
| Anxiety | Generalised Anxiety Disorder Assessment (GAD-7) scored from 0 to 21, with a higher score indicating more severe anxiety | Before cochlear implantation, two weeks after cochlear implantation, and one, three and six months after the activation of the cochlear implant |
| Insomnia | Insomnia Severity Index (ISI) scored 0 to 28 with a higher score indicating more severe insomnia | Before cochlear implantation, two weeks after cochlear implantation, and one, three and six months after the activation of the cochlear implant |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with severe to profound hearing loss undergoing cochlear implantation.
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| Name | Affiliation | Role |
|---|---|---|
| Derek J Hoare, PhD | University of Nottingham | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Nottingham Auditory Implant Programme | Nottingham | Nottinghamshire | NG1 5DU | United Kingdom |
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| ID | Term |
|---|---|
| D014012 | Tinnitus |
| ID | Term |
|---|---|
| D006311 | Hearing Disorders |
| D004427 | Ear Diseases |
| D010038 | Otorhinolaryngologic Diseases |
| D012678 | Sensation Disorders |
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| ID | Term |
|---|---|
| D003054 | Cochlear Implants |
| ID | Term |
|---|---|
| D058117 | Neural Prostheses |
| D058542 | Implantable Neurostimulators |
| D004567 | Electrodes, Implanted |
| D004566 | Electrodes |
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| Life quality |
EuroQol Quality of Life Questionnaire (EQ-5D-5L) scored from 0 to 100, with a lower score indicating worse health |
| Before cochlear implantation, two weeks after cochlear implantation, and one, three and six months after the activation of the cochlear implant |
| Hearing function | Speech, Spatial and Qualities of Hearing (SSQ-12) questionnaire scored 0-120, with a higher score indicating better hearing ability | Before cochlear implantation, two weeks after cochlear implantation, immediately after the activation of the cochlear implant, and one, three and six months after the activation of the cochlear implant |
| D009461 |
| Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D055615 |
| Electrical Equipment and Supplies |
| D004864 | Equipment and Supplies |
| D019736 | Prostheses and Implants |
| D006310 | Hearing Aids |
| D012682 | Sensory Aids |