OBJECTIVE: To address the surgical and habilitative issues raised by cochlear implantation in children with cochlear dysplasia. STUDY DESIGN: The English-language literature is reviewed and the New York University Medical Center experience with three patients is detailed. Two hundred institutions performing cochlear implants were queried by questionnaire. SETTING: Hospitals performing cochlear implantation. PATIENTS: Pediatric patients with a cochlear implant in an ear with a dysplastic cochlea. MAIN OUTCOME MEASURES: Preoperative computed tomography analysis of cochlear anatomy was compared with operative findings, complications, and postoperative device use. RESULTS: Facial nerve anatomy was anomalous in 16% of patients, and there were two surgical injuries. There were no cases of meningitis. All patients who received multichannel implants derive benefit and wear their devices. CONCLUSIONS: All degrees of cochlear dysplasia, ranging from incomplete partition to common cavity, can be safely implanted and auditory responses expected.
OBJECTIVE: To address the surgical and habilitative issues raised by cochlear implantation in children with cochlear dysplasia. STUDY DESIGN: The English-language literature is reviewed and the New York University Medical Center experience with three patients is detailed. Two hundred institutions performing cochlear implants were queried by questionnaire. SETTING: Hospitals performing cochlear implantation. PATIENTS: Pediatric patients with a cochlear implant in an ear with a dysplastic cochlea. MAIN OUTCOME MEASURES: Preoperative computed tomography analysis of cochlear anatomy was compared with operative findings, complications, and postoperative device use. RESULTS: Facial nerve anatomy was anomalous in 16% of patients, and there were two surgical injuries. There were no cases of meningitis. All patients who received multichannel implants derive benefit and wear their devices. CONCLUSIONS: All degrees of cochlear dysplasia, ranging from incomplete partition to common cavity, can be safely implanted and auditory responses expected.
Authors: S Raghunandhan; Mohan Kameswaran; R S Anand Kumar; Anoop Kumar Agarwal; Mohammod Delwar Hossain Journal: Indian J Otolaryngol Head Neck Surg Date: 2011-12-15