The Journal of International
Advanced Otology
Case Report

Troubleshooting Cochlear Implant Malfunction Using Neural Response Telemetry and Normal Saline


Department of Otorhinolaryngology and Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India

J Int Adv Otol 2024; 20: 89-93
DOI: 10.5152/iao.2024.231116
Read: 656 Downloads: 171 Published: 01 February 2024

Cochlear implantation has become a standard of care for a child diagnosed with bilateral profound sensorineural hearing loss with a structured surgical standard operating procedure. A 3-year-old boy with bilateral profound prelingual sensorineural deafness underwent a Med-EL Sonata Ti100 implant. We faced a peculiar situation intraoperatively after inserting the electrodes and closing the wound. The impedance recording indicated high ground path impedance with short-circuiting of few electrodes. As a bionic implant, its electronic components may at times malfunction both intraoperatively and/or postoperatively; therefore, neural response telemetry (NRT) was invented to check it. By using NRT and a few milliliters of normal saline, we were able to diagnose as well as rectify the malfunctioning of the implant.

Cite this article as: Sagar M, Sagar P, Kumar R, Rani P. Troubleshooting cochlear implant malfunction using neural response telemetry and normal saline. J Int Adv Otol. 2024;20(1):89-93.

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