نتایج جستجو برای: hearing loss
تعداد نتایج: 485998 فیلتر نتایج به سال:
background: there is no information about the pattern of use of earphones and music players in iranian adolescents. the aim of this study was to assess the prevalence and pattern of the use of earphone and music player devices as a main risk factor for hearing loss in adolescents of tabriz city, northwest of iran. methods: in this cross‑sectional study in november 2011, 2,359 high school studen...
introduction: pseudoexfoliation syndrome (pxs) occurs due to the deposition of extracellular fibrillar materials on the anterior chamber of the eye. this syndrome has been considered to be part of a systemic disease with the potential involvement of the inner ear called sensoroneural hearing loss (snhl). in this study, we aimed on evaluating snhl within pxs patients in iran to compare them wit...
background acoustic trauma is an injury to the hearing mechanisms in the inner ear due to excessive noise. this injury is the most prevalent cause of sensorineural hearing loss in humans, especially from occupational exposure. previous studies have shown the essential role of free radical formation in the inner ear hearing loss caused by acoustic trauma. objectives this study was performed to d...
Background and Aim: It seems that diabetes mellitus affects hearing system by several mechanisms including microangiopathy ,sorbitol deposition and glycosilation ,dealing to progressive bilateral sensorineural hearing loss which is related duration of diabetes. Materials and Methods: This is a descriptive cross-sectional study performed on 300 patients with type 2 diabetes mellitus aged 30 to 5...
Objectives: In September 2002 University of Social Welfare & Rehabilitation Sciences established a pilot universal newborn hearing screening program in two crowded maternity hospital in Tehran. Our objective was to assess the feasibility of implementing universal newborn hearing screening in IRAN. Methods: Between September 2002 and March 2004 a total of 7718 newborns were screened for heari...
Introduction: Noise-induced hearing loss (NIHL) is a major problem in industrialized and developing countries. Trend of industrialization and lack of proper protective equipment lead to an increased frequency of noise-related disorders especially NIHL. This study was conducted to investigate noise pollution and the frequency of NIHL in workers of one of the ceramic industries. Materials and ...
Introduction: The prevalence of hearing loss in neonates is 2-5 out of every 1,000 live births. Global Health Committee, American Academy of Otolaryngology, and American Academy of Pediatrics have recommended that hearing loss in infants be identified, and treated when possible, prior to 6 months of age. This study was designed with the aim to screen the hearing of neonates in Mashhad, Iran. Me...
Introduction: Nowadays, noise exposure is one of the most important industrial health problems. Noise exposure can cause hearing loss and many other health problems. So, paying attention to the noise exposure problem should be of main priority in industrial health programs. This study was conducted in an oil producing region, aimed to assess noise pollution and noise induced hearing loss. Met...
Background: Among patients who have sensorineural hearing loss of unknown etiology, diabetes is one of the diseases to be routinely investigated. The relationship between diabetes mellitus and hearing loss is still controversial. The purpose of this study was to examine the prevalence of sensorineural hearing loss in patients with insulin-dependent diabetes mellitus (IDDM) compared to contr...
the 35delg mutation in the connexin 26 gene (cx26), at the dnfb1 locus is the most common mutation in the patients with autosomal recessive non-syndromic hearing loss (arnshl). we have studied a total of 224 deaf cases from 189 families in two populations of iran (sistan va bluchestan and hormozgan provinces) by prescreening nested pcr, polyacrylamide gel electrophoresis and consequent direct s...
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