OBJECTIVE To provide the first population-based data on deafness and hearing impairment in Brazil. METHODS In 2003, a cross-sectional household survey was conducted of 2,427 persons 4 years old and over. The study population was composed of 1,040 systematically chosen households in 40 randomly selected census tracts (dwelling clusters) in the city of Canoas, which is in the state of Rio Grand...

Background: Congenital cytomegalovirus (cCMV) infection is the leading cause of non-hereditary sensorineural hearing loss in children. While about 10% children reportedly display symptoms at birth, 85–90% cCMV cases are asymptomatic. However, 10–15% these asymptomatic infants may later develop hearing, visual, or neurodevelopmental impairments. This study aimed to evaluate impact on newborns’ f...

introduction: the present study seeks to describe and analyze the syntactic features of children with severely hearing loss who had access to the hearing aids compared with children with normal hearing, assigning them to the same separate gender classes.   materials and methods: in the present study, eight children with severe hearing impairment who used a hearing aid and eight hearing children...

120 cases of Iranian soldiers complaining of hearing loss, were studied over a period of three years at the Ghaem Medical Center in Mashad,Iran. There was adequate information in III cases that their engagement in different types of explosions had caused their hearing impairment. The following aspects were evaluated: 1- Categorization of their hearing impairment. 2- The otoscopic findings...

Exposure to modified speech has been shown to benefit children with language-learning impairments with respect to their language skills (M. M. Merzenich et al., 1998; P. Tallal et al., 1996). In the study by Tallal and colleagues, the speech modification consisted of both slowing down and amplifying fast, transitional elements of speech. In this study, we examined whether the benefits of modifi...

objective sensorineural hearing loss is believed to be the result of a physiologic malfunction in the inner ear or acoustic nerve. depending on the rapidity of progression and severity, sensorineural hearing loss can be endlessly annoying, frightening and can constitute a permanent after effect. moreover, there is no surgical procedure that can reverse or lessen the severity of a sensorineural ...

abstract   background : noise is the most common hazard in the workplace and noise induced hearing loss considered to be the most common occupational disease as well. cigarette smoking, in some studies, has been known to induce hearing loss. the purpose of this study was to evaluate the effect of contemporary exposure to occupational noise and cigarette smoking on hearing.   methods : 478 assem...