Individualized cochlear implantation – first experience with a new 34 mm electrode for patients with very long cochleae

Introduction In cochlear implantation choosing the ideal electrode for each patient is crucial. It has been shown that there is a broad variation of the morphology of the cochlea, which can be estimated by the cochlear duct length (CDL). From our patients a relevant proportion has a relatively long CDL and therefore needs a longer electrode for a better electrical cochlear coverage. To optimize tonotopic mapping, a 34 mm long electrode array was designed by MED-EL. This study describes the first experience with the new FLEX34, including surgical experience, patients" characteristics and outcomes.