EAS-Combined electric and acoustic stimulation

Electric-acoustic stimulation (EAS) is a special treatment modality for those patients who are profoundly deaf in the high-frequency (HF) region and retain usable hearing low-frequency (LF) region. Combining electric with cochlear implant (CI) HF acoustic amplification of residual using conventional aid (HA) LF defines EAS. The EAS concept was first proposed by C. von Ilberg from Frankfurt, Germany year 1997. In association MED-EL, all necessary safety studies were performed non-human subjects before patient received it 1999. For to successfully use concept, needs be preserved high extent several years. This requires highly flexible electrode array safeguarding intra-cochlear structures during after CI insertion. HA unit audio processor convenient wearing unified processor. Fitting another important factor that contributes overall success treatment. key translational research efforts at MED-EL on development electrodes, processor, innovations fitting process, intra-operative monitoring health insertion, pre-operative soft-ware tool evaluate size selection some new tried within topic. article covers milestones widespread clinical