Audiological profile of patients with type 2 diabetes mellitus.
S Afr J Commun Disord
; 71(1): e1-e13, 2024 Jul 31.
Article
in En
| MEDLINE
| ID: mdl-39099284
ABSTRACT
BACKGROUND:
South Africa shows a high prevalence of type 2 diabetes with reported association with auditory dysfunction.OBJECTIVES:
To describe the audiological profile of adults with this metabolic condition.METHOD:
Employing a descriptive research design, 35 individuals with type 2 diabetes, selected through purposive sampling, underwent a basic audiological assessment in addition to extended high-frequency (EHF) audiometry, distortion product otoacoustic emissions (DPOAE) testing and neurological auditory brainstem response (ABR) test.RESULTS:
This study revealed a 31.4% prevalence of hearing loss with 81.8% being sensorineural in nature. Poor hearing thresholds were observed at 16 kHz (n = 19; 54.3%), 18 kHz (n = 24; 68.6%) and 20 kHz (n = 30; 85.7%) in the right ear and at 16 kHz (n = 20; 57.1%), 18 kHz (n = 24; 68.6%) and 20 kHz (n = 30; 85.7%) in the left ear. Absent DPOAEs were observed at 6 kHz (n = 20; 51.7%) and 8 kHz (n = 24; 68.6%) in the right ear and at 6 kHz (n = 17; 48.6%) and 8 kHz (n = 29; 82.9%) in the left ear, possibly indicating that type 2 diabetes specifically targets higher frequency hearing. The ABR results revealed a delayed absolute latency of wave III bilaterally (right ear -69%; left ear - 51%), suggesting an impact of this metabolic disease on retro-cochlear pathways.CONCLUSION:
Hearing loss should be recognised as a comorbidity accompanying type 2 diabetes, which indicates the need for routine comprehensive audiological assessments to facilitate early detection and intervention.Contribution The present findings have implications for audiology clinical protocols; diabetes related health policies and patient education.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Auditory Threshold
/
Evoked Potentials, Auditory, Brain Stem
/
Otoacoustic Emissions, Spontaneous
/
Diabetes Mellitus, Type 2
Limits:
Adult
/
Aged
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Female
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Humans
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Male
/
Middle aged
Country/Region as subject:
Africa
Language:
En
Journal:
S Afr J Commun Disord
Year:
2024
Document type:
Article
Country of publication: