OBJECTIVE: To determine the effectiveness of cochlear implant (CI) in hearing restoration after temporal bone (TB) fractures and investigate the adequacy of auditory brainstem implant (ABI) indication for TB fractures. STUDY DESIGN: Retrospective clinical study; a systematic review of the literature in PubMed was also performed to identify all published cases of bilateral TB fractures or bilateral deafness after head trauma treated by means of CI or ABI. SETTINGS: Quaternary otology and skull base surgery referral center. PATIENTS: Eleven consecutive patients presented with bilateral severe-to-profound sensorineural hearing loss after head trauma. INTERVENTIONS: CI as primary intervention or following a previous treatment. MAIN OUTCOME MEASURES: CI performances were evaluated in the auditory-only condition in both closed-set and open-set formats. RESULTS: Fourteen CI were placed, 11 as primary treatment and 3 after ABI failure. At the last follow-up, all patients gained useful open-set speech perception. In secondary CI, all patients obtained better auditory results with the CI if compared with ABI. CI performance did not decrease with time in any case. CONCLUSION: Cochlear implantation after TB fractures has proved to have excellent audiometric results. The aim of the initial evaluation of a patient with bilateral anacoustic ears from head trauma should always be to rehabilitate their hearing with a CI. The incidence of labyrinthitis ossificans, negative electrophysiologic testing, the risk of postoperative meningitis or facial nerve stimulation should not be the determinant factors that favor ABI placement.
Cochlear implantation versus auditory brainstem implantation in bilateral total deafness after head trauma: personal experience and review of the literature / Medina M; Di Lella F; Di Trapani G; Prasad SC; Bacciu A; Aristegui M; Russo A; Sanna M. - In: OTOLOGY & NEUROTOLOGY. - ISSN 1531-7129. - 35:2(2014), pp. 260-270. [10.1097/MAO.0000000000000235]
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