Revision cochlear implant (RCI) surgery has become an important tool for the management of cochlear implantation complications. This review encompasses both common and uncommon indications of RCI, diagnostic and management considerations, outcomes, surgical principles, and emerging applications. In summary, early identification of complications and suboptimal device performance is imperative for children who are in critical periods of communicative development. Independent of indications, most RCI achieve a successful restoration of sound. Although rare, it is prudent to discuss the potential complications of revision surgery and their implications with patients and their families.
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