UNLABELLED The number of people with impaired hearing is increasing; knowing its magnitude is essential for public health. OBJECTIVE To study the prevalence and determinants of impaired hearing in Itajaí/SC. METHODS A population-based survey based on a World Health Organization protocol. Field research was carried out from July 2008 to 2011. Procedures for evaluating hearing in households: ...

Introduction For infants under 6 months, the literature recommends 1,000-Hz tympanometry, which has a greater sensitivity for the correct identification of middle ear disorders in this population. Objective To systematically analyze national and international publications found in electronic databases that used tympanometry with 226-Hz and 1,000-Hz probe tones. Data Synthesis Initially, we iden...

OBJECTIVE Multi-frequency tympanometry and its components are extensively used to identify middle ear disorders. However, there are a limited number of studies that have attempted to determine its test-retest reliability. Thus, the present study attempted to determine the test-retest reliability of the different components of multi-frequency tympanometry. MATERIALS AND METHODS The resonant fr...

INTRODUCTION Little is known about the treatment outcomes of children with cleft lip and/or palate (CLP) receiving surgical care for primary lip and palate closure in Malaysia. OBJECTIVES This study examined the speech and hearing status of Malay-speaking children with CLP residing in Kuala Lumpur. METHODS Parents whose children were between the age of 5 and 7 years were recruited via the C...

Musculocontractural Ehlers–Danlos syndrome (EDS) caused by pathogenic variants in CHST14 (mcEDS-CHST14) is a subtype of EDS characterized multisystem malformations and progressive fragility-related manifestations. A recent international collaborative study showed that 55% mcEDS-CHST14 patients had hearing loss (HL), more commonly the high-frequency type. Here, we report first systemic investiga...

The characteristics of high frequency (1000 Hz) acoustic admittance results obtained from normal neonates were described in this study. Participants were 170 healthy neonates (96 boys and 74 girls) aged between 1 and 6 days (mean = 3.26 days, SD = 0.92). Transient evoked otoacoustic emissions (TEOAEs), and 226 Hz and 1000 Hz probe tone tympanograms were obtained from the participants using a Ma...

OBJECTIVE: To investigate and establish the use of tympanometry in conscious sheep to provide a means of objective assessment of tympanic membrane integrity, middle ear ventilation and functioning of the Eustachian tube (ET). DESIGN: After conditioning the sheep for four weeks, tympanometric measurements at 226 Hz were carried out weekly for 13 weeks. Before measurements, the external ear canal...

PURPOSE To verify whether children with phonological disorders present alterations in the medial olivocochlear system. METHODS This is a prospective cross-sectional study in which 19 normal hearing children of both genders, with ages between 4 and 7 years, were divided into two groups: 11 children without phonological disorders (control group) and eight with phonological disorders (study grou...