CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2022; 26(02): e281-e288
DOI: 10.1055/s-0041-1726041
Systematic Review

Auditory and Vestibular Functioning in Individuals with Type-2 Diabetes Mellitus: A Systematic Review

1   Department of Audiology, All India Institute of Speech and Hearing, Mysuru, Karnataka, India
,
1   Department of Audiology, All India Institute of Speech and Hearing, Mysuru, Karnataka, India
,
2   Department of Audiology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India
,
2   Department of Audiology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India
,
2   Department of Audiology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India
,
Bhanu Kumar Muthaiah
3   Department of Medicine, JSS Medical College, Mysuru, Karnataka, India
› Author Affiliations

Abstract

Introduction Diabetes mellitus is a metabolic disease associated with a rise in the level of blood glucose. Individuals with diabetes mellitus are more likely to develop hearing loss, tinnitus, and dizziness due to macro- and microvascular complications. The extent to which auditory and vestibular functions are impaired in individuals with type-2 diabetes mellitus is still under debate.

Objective To systematically review studies focusing on auditory and vestibular functions in individuals with type-2 diabetes mellitus.

Data Synthesis A search was conducted in the PubMed, MedlinePlus, Ingenta Connect and Google Scholar databases for articles published until June 2019. A total of 15,980 articles were primarily retrieved, 33 of which were shortlisted based on the inclusion criteria set by the investigators for the systematic review. Out of 33 full-length articles, 26 evaluated the functioning of the auditory system, while 7 evaluated the functioning of the vestibular system. Most studies related to auditory functioning reported a significant effect of type-2 diabetes mellitus on the peripheral auditory system, whereas studies on vestibular functioning reported no significant effect of diabetes mellitus on the functioning of the peripheral vestibular end-organ.

Conclusion Overall, the results of various audiological and peripheral vestibular tests reveal distinctive peripheral and/or central auditory and vestibular end-organ impairments in individuals with type-2 diabetes mellitus.



Publication History

Received: 23 April 2020

Accepted: 24 November 2020

Article published online:
20 July 2021

© 2021. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

Thieme Revinter Publicações Ltda.
Rua do Matoso 170, Rio de Janeiro, RJ, CEP 20270-135, Brazil