Third-generation bisphosphonates for cochlear otosclerosis stabilizes sensorineural hearing loss in long-term follow-up.

ABSTRACT: Objective:To assess long-term hearing outcomes in patients treated with third-generation bisphosphonates for otosclerosis-related progressive sensorineural hearing loss (SNHL). Study Design:Retrospective case series review. Methods:We performed a retrospective case series review of patients with otosclerosis and progressive SNHL. Patients were treated with either risedronate or zoledronate after a diagnosis of otosclerosis with a significant SNHL component. Bone conduction pure tone threshold averages (BC-PTAs) and word recognition scores (WRS) before and after bisphosphonate administration in long-term follow-up was analyzed. Significant change in BC-PTA was defined as greater than 10dB or between 4% and 18% in WRS based on binomial variance. Results:Seven patients were identified and 14 ears met inclusion criteria. Three patients were female and the mean age was 48.3?±?10.3 years. The mean duration between treatment with bisphosphonate administration and long-term post-treatment follow-up audiometry was 87.6?±?18.3 months, with a range of 61.6 to 109.1 months and median of 89.2 months. Analysis using BC-PTA and WRS demonstrated that 11 ears remained stable while 2 improved and 1 worsened. No patient experienced any major complication as the result of bisphosphonate therapy. Conclusion:Treatment with third-generation bisphosphonates is associated with stability in otosclerosis-related sensorineural hearing over 5- to 9-year period. These results suggest that such medications may prevent the progression of SNHL in patients with otosclerosis. Level of Evidence:4 (Case series).

SUBMITTER: Jan TA 

PROVIDER: S-EPMC5655565 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature