Abstract
Deafness is most common otolaryngological manifestation associated with thyroid dysfunction. So it was contemplated to study hearing profile in hypothyroid individuals and its response to thyroid hormone therapy. Material Method- This original research study included 100 subjects divided into 2 groups. Case group included clinically and biochemically confirmed hypothyroid patients before treatment (n=50) Control group- included Euthyroid subjects (n=50) Result: 41 out of 50 patients demonstrated hearing loss, 32 had Sensorineural hearing loss 9 had mixed hearing loss and 9 had normal hearing. Following treatment with levothyroxine hearing threshold improved by 5-10 db in 6 patients and more than 10 db in 33 patients while 2 patients had no improvement. BERA revealed reduced amplitude of wave I, II, III & V. After 6 months of treatment with levothyroxine wave V absolute amplitude improved significantly. Conclusion: Hypothyroid patient had significant degree of hearing impairment. An improvement in hearing parameters occurred following levothyroxine replacement therapy over a period of 6 months.
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