background and objective : obstructive sleep apnea (osa) through hypoxia and reoxygenation periods leads to oxidative stress, endothelial dysfunction, and activation of inflammatory cycles, which eventually may cause disorder in vasa nervorum, and peripheral neuropathy in hearing pathway. in this study, we aimed to evaluate the effect of severe sleep apnea on hearing function. materials and met...

Several conditions fit this description, the mode of transmission being X-linked, autosomal dominant or recessive. The hearing loss is usually progressive and can be conductive, sensory or neural. In addition, some of the progressive inherited hearing losses of childhood may not develop auditory difficulties until adult life, although they should have been diagnosed in childhood (see Volume 6)....

A total of 524 industrial workers were studied. They consisted of 442 noise exposed and 82 non-noise exposed workers. The purpose was to compare the prevalence of sensori-neural hearing loss among the noise exposed and the non-noise exposed workers, to study their knowledge on the hazard of noise to hearing and the workers' attitude towards the hearing protection devices. The prevalence of sens...

introduction: a deaf child creates a feeling of stigma in many hearing parents. stigma in mothers can have a negative impact on a child’s treatment and rehabilitation process. therefore, this study was conducted to evaluate the extent of stigma in mothers with deaf children.  materials and methods: this descriptive, cross-sectional study was conducted in 2013 among 90 mothers with deaf children...

background noise exposure is known as a risk factor for hearing loss and one of its effects is noise-induced stress. cortisol as a stress hormone is used in noise-induced stress assessments. objectives the aim of this study was to measure and compare saliva cortisol concentrations in the morning and evening in normal work day and rest day in both case and control groups and to assess the associ...

background: ototoxic chemicals can impair the sense of hearing and balance. in the past decades, the ototoxicity of solvents and their interaction with noise have become evident. this study has been carried out in the shoe manufacturing factory in tehran (iran) with the aim of evaluating the combined effects of noise and toluene on the workers' hearing. materials and methods: this cross-se...

conclusions despite rising figures of reported occupational hearing loss, working nbii statistics show that the nihl problem in the danish work environment has, in fact, decreased. in our study, we found that roughly one third (around 100 cases) of the 272 screened persons presumably had nihl, taking into account 88 probable cases (column b) and 44 questionable ones (column c + 16 ski slopes). ...

  Background: Our hearing ability in space is critical for hearing speech in noisy environment and localization. The Spatial Hearing Questionnaire (SHQ) has been devised to focus only on spatial haring tasks (e.g., lateralization, distance detection and binaural detection). The aim of the present study was to determine the reliability and validity of the Persian translation of the SHQ (Spatial ...