Impedance telemetry This test is performed per-operatively and post-operatively to check the integrity of the 20 electrodes. EABR recording The examination of EABRs also allows information on the auditory system to be obtained by gathering electric signals passing between the auditory nerve and the brain when the implant is stimulated. It is an efficient diagnostic tool and means better adjustments for very young children.
		This examination requires the Digistim® SP interface developed by Neurelec. This system delivers a stimulation pattern to the implant and a synchronisation signal to the Electrical Auditory Brainstem Responses (EABR) recording system.