NOISE-INDUCED HEARING LOSS (NIHL) AND ITS CORRELATION WITH AUDIOMETRIC OBSERVATIONS IN HEAVY VEHICLE OPERATORS SUFFERING WITH METABOLIC DISORDERS
Journal Title: International Journal of Medical and Clinical Research - Year 2015, Vol 6, Issue 1
Abstract
Type II diabetic Mellitus (DM) is a chronic metabolic disease. In 2014, 9% of adults 18 years and older had diabetes. In 2012, diabetes was the direct cause of 1.5 million deaths. More than 80% of diabetes deaths occur in low- and middle-income countries. In India, about 5% populations suffer from diabetes or related complication. DM chronic auditory complications may include spiral ganglia atrophy, degeneration of the vestibulocochlear nerve myelin sheath, reduction of the number of spiral lamina nerve fibers, and thickening of the capillary walls of the stria vascular is and small arteries which lead to hearing loss. Aim and Objective: This study aims to know the incidence of hearing loss and to establish correlation with clinical parameters & personal hygiene of individuals. Materials & Methods: Sixty-four subjects were diagnosed as type II recruited in this study are heavy vehicle drivers & helpers. Noise-Induced Hearing Loss (NIHL) analysis study featuring hearing impairment in all individuals has been done after interviewed by various sets of questions related to listening ability. All subjects underwent a physical examination, blood investigations to confirm metabolic disorders & audiometric examination to evaluate hearing loss. Results & Conclusion: Conductive hearing loss is higher amongst the all three types as compared to sensory neural hearing loss & mixed hearing loss. There is no definite pattern of audiometric results; it could be variation in pre-assessment preparation of individuals subject. Certain medications used may cause damage of hair cells in the inner ear that may be the reason of higher frequency among the study subjects affected by sensory neural hearing loss compared with other two types.
Authors and Affiliations
M. YADAV, K. S. YADAV, A. NETTERWALA, B. KHAN, N. S. DESAI
Keywords
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