Cochlear Implantation in the Active Duty Military Population: A Survey Assessing Military Readiness and Satisfaction

Objective: Evaluate the impact of cochlear implantation (CI) on retention for United States active duty (AD) service members. Study Design: Retrospective observational study. Setting: Tertiary military CI centers. Patients: AD service members who underwent CI and completed a telephonic survey. Main Outcome Measures: The ability for military personnel to maintain AD status following CI as determined by the nonvolitional hearing-related AD separation rate and whether subjects would recommend CI to other qualified candidates. Results: Twenty AD service members who underwent CI between 2004 and 2020 completed a telephonic survey. Fifteen (75%) were single-sided deafness (SSD) and five were traditional CI candidates. The mean age was 40.3 years (range 27.5-64.3), 19 (95%) were male, and 12 (80%) were Caucasian. Ten (50%) were officers and 14 (70%) were noncombat support personnel. Idiopathic sudden sensorineural hearing loss was the most common cause of hearing loss (8, 40%) followed by occupational noise exposure (4, 20%). Sixteen (80%) maintained AD status yielding 46.15 person-years of AD service following CI. For SSD, 14 (93%) maintained AD status yielding 40.54 person-years of AD service. The nonvolitional hearing-related patient separation rate for CI recipients with bilateral hearing loss was 35.65 cases per 100 AD person-years and 0 cases per 100 person-years for SSD candidates. Nineteen (95%) stated they would recommend CI to other AD CI candidates. Conclusions: The vast majority of AD CI recipients, and particularly those with SSD, are able to remain on AD after surgery and report a high degree of satisfaction with their implant.