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A study of pure tone audiometry in adults with hypothyroidism

Vinitha V, Ramidha VP, Meenu Gopalakrishnan, Suryarani AB.


Background: Thyroid hormones are important for overall growth and maturation. Hypothyroidism is associated with many symptom complexes, one of them being hearing loss.

Aim and Objectives: Evaluating the hearing loss in hypothyroid patients of the age group of 18–45 years and comparing them with those in healthy people.

Materials and Methods: A case-control study was conducted in subjects aged between 18 and 45 years, in which 80 hypothyroid cases were selected after proper exclusion and informed consent and 80 age-and sex-matched healthy controls were studied. Hearing loss was assessed by pure tone audiometry. Statistical Package for the Social Sciences version 18 was used for statistical analysis.

Results: SNHL was the common type of hearing loss seen. The prevalence of hearing loss was found to be 66.3% in cases. Hearing loss was mild, bilateral, and commonly affected the high frequency.

Conclusions: Hypothyroid patients were more prone to sensorineural hearing loss. In patients with thyroid disorders, hearing evaluation helps in the detection of hearing loss earlier and thus treatment could be started.

Key words: Pure Tone Audiometry; Hearing Loss; Adult Hypothyroidism

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