title: [Preliminary studies of deaf patients assessed for cochlear implantation].
abstract: Two techniques were employed to assess the suitability of deaf patients for cochlear implantation: electrical stimulation by means of ear canal electrode and promontorium electrode. The results of the ear canal tests indicate that the patients may be divided into three groups: I. non-usable dynamics, II. usable dynamics in low-frequency range, and III. usable dynamics over a wider frequency range. Comparable results were obtained via the promontory tests. Since the promontory tests showed a more accurate description of the subjective sensations, it is recommended that this test be performed with those patients who have been preselected on the basis of ear canal stimulation.
mesh_terms: D001306:Auditory Pathways / Q000503:physiopathology*; D001309:Auditory Threshold / Q000502:physiology; D003054:Cochlear Implants; D003056:Cochlear Nerve / Q000503:physiopathology*; D003638:Deafness / Q000503:physiopathology / Q000534:rehabilitation*; D004558:Electric Stimulation; D006801:Humans; D009619:Nociceptors / Q000503:physiopathology; D010898:Pitch Perception / Q000502:physiology; D009435:Synaptic Transmission
vernacular_title: Voruntersuchungen gehörloser Patienten zur Cochlea-Implantation.