A study of sensorineural hearing loss in hypothyroidism patients and its association with thyroid stimulating hormone levels


  • Srirangaprasad K. Department of Otorhinolaryngology and Head and Neck Surgery, Rajarajeswari Medical College and Hospital, Bangalore, Karnataka, India
  • Pruthvi Raj S. Department of Otorhinolaryngology and Head and Neck Surgery, Rajarajeswari Medical College and Hospital, Bangalore, Karnataka, India http://orcid.org/0000-0001-6198-6174




Sensorineural hearing loss, Hypothyroidism, Thyroid function test, Thyroid stimulating hormone levels


Background: The most common symptom of hypothyroidism regarding ear, nose and throat is hearing insufficiency accompanied with cochleovestibular symptoms such as tinnitus, dizziness.

Methods: This was a hospital based observational clinical study conducted in Rajarajeswari medical college between December 2016 to June 2018. Patients with hypothyroidism attending department of ENT-HNS that satisfied the inclusion and exclusion criteria were included in the study. Patients were subjected to pure tone audiometry, thyroid function test after detailed history and physical examination. PTA was recorded and average of 500 Hz, 1 kHz and 2 kHz were taken as the pure tone average.

Results: 150 patients were included in the study. Mean age of patients with hearing loss was 37.2 years. 84.3% were females. 41 patients presented to us with unilateral hearing loss and 10 patients had bilateral hearing loss. 43 (84.3%) patients had mild degree of hearing loss, 8 (15.7%) had moderate hearing loss. Patients with hearing loss had altered TSH levels. Significant correlation (p<0.001) was found between hearing loss and duration of hypothyroidism, mean TSH levels.

Conclusions: It was found that hy­pothyroidism affects the hearing producing hearing impairment, ranging from mild to moderate in severity and had significant correlation between duration of hypothyroidism and mean TSH levels with the severity of hearing loss.


Di Lorenzo L, Foggia L, Panza N, Calabrese MR, Motta G, Tranchino G, et al. Auditory brainstem responses in thyroid diseases before and after therapy. Horm Res. 1995;43(5):200-5.

Santos KT, Dias NH, Mazeto GM, Carvalho LR, Lapate RL, Martins RH. Audiologic evaluation in patients with acquired hypothyroidism. Braz J Otorhinolaryngol. 2010;76(4):478-84.

Ritter FN. The effects of hypothyroidism upon the ear, nose and throat. A clinical and experimental study. Laryngoscope. 1967;77:1427-79.

Balaji PV, Thirumaran M, Sharathbabu V. Assessment of audiologic evaluation in patients withacquired hypothyroidism. Sch J App Med Sci. 2016;4(7A):2328-32.

Ben-Tovim R, Zohar Y, Zohiar S, Laurian N, Laurian L. Auditory brain stem response in experimentally induced hypothyroidism in albino rats. Laryngoscope. 1985;95(8):982-6.

Vanasse M, Fischer C, Berthezène F, Roux Y, Volman G, Mornex R. Normal brainstem auditory evoked potentials in adult hypothyroidism. Laryngoscope. 1989;99(3):302-6.

Oliveira JAA. Fisiologia da Audição - Cócleaativa In: Figueiredo MS. Emissões Otoacústicas e BERA. São José dos Campos: Pulso Editorial; 2003:1-34.

Dhingra PL, Dhingra S, Dhingra D. Diseases of ear, nose and throat & head and neck surgery. 6th ed. Netherlands: Elsevier; 2014:3-4.

Anand VT, Mann SB, Dash RJ, Mehra YN. Auditory investigations in hypothyroidism. Acta Otolaryngol. 1989;108(1-2):83-7.

Malik V, Shukla GK, Bhatia N. Hearing profile in hypothyroidism. Indian J Otolaryngol Head Neck Surg. 2002;54(4):285-90.

Anil HT, Kamath GJ, Gauri M. A study on hearing profile in aquired hypothyroidism. Int J Sci Res. 2015;4(12):85-90.

Morgan JM, McCaffrey T. Head and neck manifestations of endocrine disease. In: Gleeson M, eds. Scott-Brown’s otorhinolaryngology, head and neck surgery. London: Hodder Arnold; 2008:400.

Bakshi HK, Sahni D, Goyal JP, Kumar R, Sohal BS, Kumar A. A study on hearing profile in hypothyroidism and comparative evaluation of hearing in hypothyroid subjects before and after treatment with thyroxine-a study of 100 cases. J Med Sci Clin Res. 2016;04(9):12606-12.

Bhatia PL, Gupta OP, Agrawal MK, Mishr SK. Audiological and vestibular function tests in hypothyroidism. Laryngoscope. 1977;87(12):2082-9.






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