Intra-Operative Cochlear Nerve Function Monitoring in Hearing Preservation Surgery: A Systematic Review of the Literature

Marzia Ariano; Sebastiano Franchella; Giulia Tealdo; Elisabetta Zanoletti

doi:10.3390/audiolres12060066

Intra-Operative Cochlear Nerve Function Monitoring in Hearing Preservation Surgery: A Systematic Review of the Literature

Audiol Res. 2022 Dec 15;12(6):696-708. doi: 10.3390/audiolres12060066.

Authors

Marzia Ariano¹, Sebastiano Franchella¹, Giulia Tealdo¹, Elisabetta Zanoletti¹

Affiliation

¹ Section of Otorhinolaryngology-Head and Neck Surgery, Department of Neurosciences, University of Padova, 35128 Padova, Italy.

Abstract

With the recent scientific and technical developments, hearing preservation surgery is becoming a growing objective in inner ear pathologies, especially for vestibular schwannomas. In this review, we aim to describe the pros and cons of the following cochlear nerve monitoring techniques: ABRs (auditory brainstem responses), DENM (direct eighth cranial nerve monitoring), EcochG (electrocochleography), CNAP (cochlear compound nerve action potentials), DPOAE (distortion product otoacoustic emissions), PAMRs (postauricular muscle responses). The Cochrane library, Scopus, DynaMed, and PubMed databases were screened to obtain any relevant papers from October 2009 to the present day. Due to the heterogeneity of the existing studies in the literature, there is no way to tell whether a technique is better than another. All authors reported satisfactory outcomes with the cochlear nerve monitoring techniques tested, either alone or in combination.

Keywords: cochlear nerve; hearing-sparing surgery; monitoring.

Publication types

Review

Grants and funding

This research received no external funding.