Related Experiment Video
Updated: Mar 21, 2026

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
Published on: June 21, 2024
Auditory Nerve Recovery Function in Cochlear Implant Surgery with Local Anesthesia and Sedation versus General
Gislaine Richter Minhoto Wiemes1, Rogério Hamerschmidt, Ana Tereza Ramos Moreira
1Surgical Clinics, Federal University of Paranx00E1; (UFPR), Curitiba, Brazil.
Objective:
To analyze auditory nerve recovery function (REC), comparing the results after local anesthesia and sedation with those after general anesthesia.
Methods:
This was a prospective, cross-sectional and descriptive study in a tertiary referral center hospital. We included all patients (37 ears) who underwent surgery for cochlear implant under either general anesthesia or local anesthesia and sedation during 3 years. REC was measured according to the function of 3 components, 'T0', 'A' and 'tau', and was taken for 3 cochlear electrodes (apical, medial and basal).
Results:
There were no significant differences in 'tau' and in the current level used, but there were significant differences in the parameters 'T0' apical and 'A' basal.
Conclusions:
There were no significant differences in REC between the 2 types of anesthesia, except for the parameters 'T0' apical and 'A' basal.
Related Concept Videos
General Anesthesia: Overview
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
Local Anesthetics: Differential Sensitivity of Nerve Fibers
Stages of General Anesthesia
Local Anesthetics: Clinical Application as Spinal Anesthesia

