OBJECTIVE We investigated whether preeclampsia is a risk factor for cochlear damage and permanent hearing loss. STUDY DESIGN Prospective case-control study design. SETTING Academic tertiary medical center. PATIENTS Subjects included 40 patients with preeclampsia and 30 healthy pregnant women. INTERVENTIONS Otoscopic examinations and pure-tone audiometry, tympanometry, otoacoustic emissi...

Otoacoustic emissions (OAEs) of all types are widely assumed to arise by a common mechanism: nonlinear electromechanical distortion within the cochlea. In this view, both stimulus-frequency (SFOAEs) and distortion-product emissions (DPOAEs) arise because nonlinearities in the mechanics act as "sources" of backward-traveling waves. This unified picture is tested by analyzing measurements of emis...

Otoacoustic emissions provide unambiguous evidence that the cochlea supports energy propagation both towards, and away from, the stapes. The standard wave model for energy transport and cochlear mechanical amplification provides for compressional and inertial waves to transport this energy, the compressional wave through the fluids and the inertial wave along the basilar membrane via fluid coup...

Introduction Radiological assessment plays a vital role in identifying auditory neuropathy spectrum disorder (ANSD) children. Identifying the neonatal risk factors and their association with radiological findings might facilitate management of children ANSD. The goal current work was to investigate relationship between perinatal Material methods Altogether, 28 ANSD aged 1 6 were enrolled. Behav...

The incidence of sensorineural hearing loss among patients with chronic renal failure (CRF) is considerably higher than in the general population. Bazzi et al. [1] found an incidence of 77% including patients with mild and very mild hearing loss. Ozturan and Lam [2] found a moderate to severe hearing loss in 46% of the tested patients. The general consensus in audiometric findings among patient...

This article discusses how several diagnostic tools used by audiologists inter-relate to anatomical abnormalities viewed by video otoscopy. Background of common middle ear pathology is reviewed, with emphasis on new research findings regarding pathophysiology. A review of video otoscopy, multifrequency tympanometry, and otoreflectance is provided. Case studies illustrate the integrated use of t...

Otoacoustic emissions (OAEs) are currently used as a valuable audiological test or hearing screening tool. There many commercially available OAE recording systems that both for clinical practice and research. However, there is little information in the literature comparing their performance detecting loss. The purpose of this prospective, nonrandomized, controlled study was to evaluate obtained...

Introduction: Hearing impairment and hearing loss are kinds of latent handicap in children. Any abnormality in hearing can affect different aspects of life. Otoacoustic emissions have been accepted as an appropriate method for screening of hearing loss in neonates. In this study we assessed the hearing status of infants admitted in ICU wards in Yazd.Materials and methods: This was a cross-secti...

The Apennine Carbonate Platform of southern Italy witnesses nearly 150 Myr (Late Triassic to Late Cretaceous) shallow-water carbonate sedimentation in the subtropical central Tethys. During this field trip, you will have a look at stratigraphy and facies across some key intervals global palaeoenvironmental perturbation important stratigraphic discontinuities history platform.During first day, v...

The purpose of this study was to investigate the effects of mild systemic hypoxia on inner haircell (IHC) and outer haircell (OHC) function. A number of studies have explored the effects of anoxia/hypoxia and ischemia of the inner ear [e.g. 1,2,3,4,5] but have not addressed whether there is a dissociation between IHC and OHC function during such an insult. To monitor OHC activity we recorded ot...