Online ISSN: 2515-8260

Audiological Evaluation of Hypothyroid Patients by Pure Tone Audiometry at Tertiary Care Hospital in Himachal Pradesh

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1Dr. Rakesh Kumar Thakur*2Manoj Kumar yadav

Abstract

Background: Thyroid hormone is important for the normal function of the auditory system. Thus, the present study was undertaken with the objective to evaluate the audiological profile of Hypothyroid Patients at Tertiary Care Hospital in Himachal Pradesh. Material & Methods: Between September 2020 and June 2021, a cross-sectional study was done on hypothyroid patients came in OPD at Otorhinolaryngology Department of the Pt. Jawahar Lal Nehru Government Medical College and Hospital, District Chamba, Himachal Pradesh. After confirmation of hypothyroid status based on FT3, FT4 &TSH level, their sociodemographic characteristics were assessed and audiological assessment was done by pure tone audiometry. Patients were categorized on the basis of maximum hearing threshold intensity level. Data was analysed using Epi info V7 Software. Results: A total of 41 hypothyroid patients were participated in the study. Among them, 61% (25) were ≤40 years of age while 39% (16) were above 40 years. 97.6% (40) of patients were female while only 2.4% (1) was male. Mean age of study participants was 39.66 ± 9.643 years. Among the total, FT3, FT4 and TSH level were deranged in 16(39%), 14(34.1%) and 37(90.2%) patients respectively. Mean FT3, FT4 and TSH levels was 22.05±44.452 ng/ml, 7.07±4.192 µg/dl and 16.46±24.241 µIU/ml respectively. Hearing impairment in right ear was found in 12(29.3%) patients in whom mild hearing loss was present in 11(26.9%) patients while Moderate Hearing loss was found in 1(2.4%) patient. Hearing impairment in left ear was found in 18(43.9%) patients and all these were having mild hearing loss. Among the total, 12 (29.3%) had hearing impairment in both ears. Mean audiometric threshold value was 23.54 ± 6.169 dB and 25.49 ± 5.075 dB in right and left ear respectively. There was no statistically significant difference in mean audiometric threshold in both ears.(P value=0.2213).

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