Comparison of Perioperative Electrophysiological Measurements and Postoperative Results in Cochlear Implantation with a Slim Straight Electrode

This research aims to determine whether a neural response telemetry (NRT) threshold determines the success of surgery. Furthermore, we examined whether the patient’s age, the etiology of their hearing loss, the depth of the electrode insertion, and a slow electrode insertion affect the result of pos...

Full description

Bibliographic Details
Main Authors: Tina Gabrovec, Jana Dragar, Domen Guzelj, Petra Povalej Bržan, Janez Rebol
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/5/3292
Description
Summary:This research aims to determine whether a neural response telemetry (NRT) threshold determines the success of surgery. Furthermore, we examined whether the patient’s age, the etiology of their hearing loss, the depth of the electrode insertion, and a slow electrode insertion affect the result of postoperative speech audiometry (PSA). A total of 23 patients that had operations in a tertiary medical centre were included in the research. All of them received a slim straight electrode that was inserted through the round window into the lateral part of scala tympani The duration of the insertion was consistently 2 min in 52.2% and less than 2 min in 47.8% of cases. Statistical analyses were performed in the IBM SPSS<sup>TM</sup> program. Patients that were diagnosed with sensorineural hearing loss (SNHL) had statistically lower average NRT threshold values in comparison to patients diagnosed with otosclerosis (<i>t</i> = 3.069; <i>p</i> = 0.034). The depth of electrode insertion is inversely proportional to the average of all NRT thresholds (r = −0.464; <i>p</i> = 0.026). No correlation was found between slow electrode insertion and postoperative average values of tone audiometry (U = 44.000; <i>p</i> = 0.300). No statistically significant correlation could be drawn between the average of all NRT thresholds and postoperative speech audiometry (rho = −0.070; <i>p</i> = 0.751).
ISSN:2076-3417