Manuel Quevedo

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OBJECTIVES Literature that discusses the benefits of cochlear implantation (CI) in children under the age of two is limited. Previous concerns about surgical risk have been raised and addressed; however, actual benefit in terms of outcomes needs to be clearly defined. This study evaluates outcomes of children implanted under the age of two and compares them(More)
Electrochemical treatment of cancer utilizes direct electric current (DEC) to produce direct alterations and chemical changes in tumors. However, the DEC treatment is not established and mechanisms are not well understood. In vivo studies were conducted to evaluate the effectiveness of DEC on animal tumor models. Ehrlich tumors were implanted subcutaneously(More)
NBTI of the HfSiO x /TiN gate stack is investigated as a function of the dielectric thickness. It is shown that as the thickness of the HfSiO x layer is reduced below 20Å, the NBTI mechanism approaches the mechanism that induces H-reaction diffusion. Conversely, for thicker HfSiO x dielectrics, a combination of H-reaction-diffusion and charge detrapping(More)
CONCLUSIONS Data from 50 patients suggest that the SONATATI(100) cochlear implant (CI) is a safe and effective device. OBJECTIVE MED-EL has developed and tested a CI with titanium housing (the SONATATI(100)), which has the same internal components as the PULSARCI(100). Implant surgery should be less traumatic, as with these CIs smaller incisions and less(More)
We present the case of a 74-year-old woman, who came to emergency services due to the sudden appearance of a mass at the right lateral cervical level 2 days earlier. The most relevant personal history data were: diabetes mellitus type 2, hypertension, dyslipidaemia and chronic kidney disease Stage IV (with normal serum levels of uric acid for the previous 8(More)
Inner ear bone malformations are one cause of profound sensorineural hearing loss. This investigation focused on those affecting the posterior labyrinth, especially enlarged vestibular aqueduct syndrome, which is associated with fluctuating and progressive hearing loss. The objectives of this study were to analyze the behavior of the electrical stimulation,(More)
Objectives: Auditory steady-state responses (ASSR) using frequencies of modulation between 70-110 Hz are a new auditive exploration technique. The aim of the study was to evaluate the contribution of the ASSR to diagnostic of the audition. Material and method: Different aportations of auditory steady-states responses (ASSR) and auditory brain-stem responses(More)
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