[Auditory brainstem implantation].

In this review, we discuss the auditory brainstem implant (ABI), which is a neuroprosthetic device being an advanced hearing aid in cases of bilateral, profound or complete hearing impairment due to a non-functional or absent cochlear nerve, or an inner ear malformation precluding cochlear implantation. Originally indicated in patients with bilateral vestibular schwannomas caused by neurofibromatosis type 2, the ABI has in recent years seen an increase in the aural rehabilitation of congenitally deaf children. Outcomes for patients are mixed, but generally the device leads to a reasonable improvement in speech perception.