Sergio Razza

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One hundred and forty-seven adult recipients of the Nucleus 24 cochlear implant system, from 13 different European countries, were tested using neural response telemetry to measure the electrically evoked compound action potential (ECAP), according to a standardised postoperative measurement procedure. Recordings were obtained in 96% of these subjects with(More)
OBJECTIVE To compare speech recognition in noise for the Nucleus Freedom and CP810 sound processors using different directional settings among those available in the SmartSound portfolio. STUDY DESIGN Single-subject, repeated measures study. SETTING Tertiary care referral center. SUBJECTS AND METHODS Thirty-one monoaurally and binaurally implanted(More)
Introduction Cochlear implantation (CI) has been available for over 25 years in many countries worldwide. From very early on, it was quite clear that successful implantation was only possible when three major requirements were satisfied: qualified pre-operative patient selection, sophisticated CI surgery, and extensive post-operative rehabilitation. The(More)
Currently, the most commonly used electrophysiological tests for cochlear implant evaluation are Averaged Electrical Voltages (AEV), Electrical Advisory Brainstem Responses (EABR) and Neural Response Telemetry (NRT). The present paper focuses on the study of acoustic auditory cortical responses, or slow vertex responses, which are not widely used due to the(More)
OBJECTIVE To describe the rate of occurrence of unsuspected decrease in sensitivity of the sound processor microphone and to evaluate its effect on the patient's audiological performance in terms of reduction in speech recognition scores. DESIGN Speech processor microphones were tested by connecting the speech processor acoustic monitor circuit to a(More)
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