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Cisplatin is a highly effective chemotherapeutic agent but displays significant ototoxic side effects. The most prominent change seen in the cochlea after cisplatin administration consists of loss of outer hair cells. Several mechanisms are believed to mediate cisplatin-induced apoptosis: binding of cisplatin to guanine bases on DNA and the formation of(More)
OBJECTIVE The aim of the present study was to study patterns in the extended spectrum of the human hearing (0.125 to 20 kHz) in order to obtain reference thresholds. Then, we compare our values with existing results at extended high-frequencies (8 to 20 kHz) in an attempt to establish new standards for potential international adoption. DESIGN A(More)
OBJECTIVES/HYPOTHESIS Cisplatin induces adverse effects such as ototoxicity and nephrotoxicity. Unexplained hearing improvement in sudden deafness and fluctuating hearing loss suggests the presence of some mechanisms other than the primary lesion of the outer hair cell. The authors' aim was to study the functional and morphological lesions induced in the(More)
Mutations of the EYA1 gene (8q13.3) are the most common known cause of the branchio-oto-renal dysplasia (BOR), an autosomal dominant disease that includes developmental defects of branchial arch structures, middle and/or inner ear and kidney. The distinction between BOR and other dysplasias, such as oto-facio-cervical syndrome (OFC), is challenged by(More)
Large vestibular aqueduct syndrome (LVAS) is one of the most frequent inner ear malformations. It is associated with varying degrees of hearing loss, that may be progressive, sudden or fluctuant; nevertheless normal hearing in cases with LVAS has been described. Although unilateral LVAS has been described, all patients show clinical and radiological(More)
PURPOSE Analysis of labyrinthitis in a model of otitis media. MATERIALS AND METHODS Morphologic study in 20 Wistar rats in which otitis media was induced by transbullar inoculation of Pseudomonas aeruginosa with obstruction of the eustachian tube. RESULTS Seventy percent of rats showed vestibular signs. Histologic changes ranged from nonaffected(More)
The aim of this work is to provide a guide for clinical and genetic diagnosis and classification of the enlarged vestibular aqueduct syndrome based on a review of the literature and computerized databases with the words large and enlarged vestibular aqueduct. No more than 40 articles described association between the EVA phenotype and a known genetic(More)
OBJECTIVE To describe a simple approach to the rat middle ear because there are few clear descriptions of this technique with minimal morbidity and mortality. STUDY DESIGN AND SETTING Six male Long-Evans rats were used in this study. We designed a cervical approach to the middle ear with the purpose of creating an experimental model of ossiculoplasty that(More)