OBJECTIVE: To report the outcomes of patients that have undergone revision cochlear implant surgery for suspected device malfunction. STUDY DESIGN: Retrospective case series. SETTING: Academic medical center. PATIENTS: Adult cochlear implant patients with devices that fail to lock or maintain a lock but are associated with troubling signs and symptoms. INTERVENTION: Revision cochlear implant surgery. MAIN OUTCOME MEASURES: Demographics, presenting signs and symptoms, surgical findings, complications, audiologic performance and device analysis. RESULTS: To date, 33 revision cochlear implant operations have been performed in 30 patients. Eight (24%) presented with a failure of the speech processor to lock with the internal device (i.e., hard failure). Twenty-five (76%) presented with either aversive auditory (n = 23 [92%]) or nonauditory (n = 21 [84%]) symptoms or performance-related issues (n = 16 [64%]) while maintaining a lock (i.e., suspected soft failure). Revision surgery resulted in resolution of the patient's presenting signs and symptoms in nearly 90% of cases and significant improvements in auditory performance. Perioperative complications were uncommon. Preoperative testing and device analysis frequently did not reveal the reason for presumed device malfunction. CONCLUSION: Revision cochlear implantation should be considered in patients significantly affected by intolerable auditory and/or nonauditory symptoms or when performance issues have been documented.
OBJECTIVE: To report the outcomes of patients that have undergone revision cochlear implant surgery for suspected device malfunction. STUDY DESIGN: Retrospective case series. SETTING: Academic medical center. PATIENTS: Adult cochlear implant patients with devices that fail to lock or maintain a lock but are associated with troubling signs and symptoms. INTERVENTION: Revision cochlear implant surgery. MAIN OUTCOME MEASURES: Demographics, presenting signs and symptoms, surgical findings, complications, audiologic performance and device analysis. RESULTS: To date, 33 revision cochlear implant operations have been performed in 30 patients. Eight (24%) presented with a failure of the speech processor to lock with the internal device (i.e., hard failure). Twenty-five (76%) presented with either aversive auditory (n = 23 [92%]) or nonauditory (n = 21 [84%]) symptoms or performance-related issues (n = 16 [64%]) while maintaining a lock (i.e., suspected soft failure). Revision surgery resulted in resolution of the patient's presenting signs and symptoms in nearly 90% of cases and significant improvements in auditory performance. Perioperative complications were uncommon. Preoperative testing and device analysis frequently did not reveal the reason for presumed device malfunction. CONCLUSION: Revision cochlear implantation should be considered in patients significantly affected by intolerable auditory and/or nonauditory symptoms or when performance issues have been documented.
Authors: Nathan R Lindquist; Nathan D Cass; Ankita Patro; Elizabeth L Perkins; René H Gifford; David S Haynes; Jourdan T Holder Journal: Otol Neurotol Date: 2022-08-01 Impact factor: 2.619
Authors: Marilena Trozzi; Harry R F Powell; Shamim Toma; Waseem Ahmed; Christopher G Jephson; Kaukab Rajput; Lesley A Cochrane Journal: Eur Arch Otorhinolaryngol Date: 2014-08-09 Impact factor: 2.503