Cochlear implantations may improve speech and auditory outcomes in pediatric patients with sensorineural hearing loss: Study
A new study published in The Laryngoscope journal showed that possibilities for cochlear implantation (CI) are growing as research shows benefits in previously thought-inappropriate groups. Sensorineural hearing loss (SNHL) has an uncertain origin and pathophysiology and is the clinical manifestation of cochlear nerve deficit (CND), which is defined as a short or nonexistent cochlear branch of the vestibulocochlear nerve. The patients with congenital SNHL had a 2.5 to 21.2% incidence of CND.
It is challenging to distinguish the CN from other nerves in the internal acoustic meatus (IAM) because of the limits of the present MRI resolution. The use of cochlear implants in patients with CND is still debatable since some research on CI recipients with CND has shown very poor outcomes, while other studies have shown minimal speech discrimination and detection.
Based on MRI results of the IAM's nerves and the CN's size, this research has devised a new IAM nerve grading system and a CN classification system, as follows: Grades 0–III denoted aplasia, which is the observation of 0, 1, 2, and 3 nerve bundles in the IAM. Thereby, Susmita Chennareddy and colleagues undertook this study to investigate the speech and auditory outcomes of CI in young bilateral SNHL patients with radiographically confirmed CND before and after surgery.
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