R K Gurgel

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OBJECTIVES/HYPOTHESIS Cochlear nerve stimulation using a linear array of electrodes, the cochlear implant, has become an accepted treatment for profound deafness. Major limitations of this technology are high threshold of stimulation, poor performance in a noisy background, cross-talk between electrodes, unsatisfactory channel selectivity, and variable(More)
OBJECTIVE To determine whether baseline hearing loss increases cognitive decline and risk for all-cause dementia in a population of elderly individuals. STUDY DESIGN Longitudinal cohort study. SETTING Community-based, outpatient. PATIENTS Men and women aged 65 years or older without dementia at baseline. INTERVENTION(S) All subjects completed the(More)
The lack of an adequate standardized method for reporting level of hearing function in clinical trials has hampered the ability of investigators to draw comparisons across studies. Variability in data reported and presentation format inhibits meta-analysis and makes it impossible to accumulate the large patient cohorts needed for statistically significant(More)
OBJECT The object of this study was to evaluate facial nerve outcomes in the surgical treatment of large vestibular schwannomas (VSs; ≥ 2.5 cm maximal or extrameatal cerebellopontine angle diameter) based on both the operative approach and extent of tumor resection. METHODS A PubMed search was conducted of English language studies on the treatment of(More)
OBJECTIVE To perform a systematic review, comparing hearing outcomes of atresiaplasty versus osseointegrated bone conduction device (OBCD) in congenital aural atresia (CAA) patients. DATA SOURCES Approximately 107 studies, published from 1975 to 2012, evaluating hearing outcomes after atresiaplasty and/or OBCD in CAA patients were identified through a(More)
OBJECTIVE To evaluate the ability of hypoglossal-facial nerve anastomosis to reanimate the face in patients with complete nuclear (central) facial nerve palsy. STUDY DESIGN Retrospective case series. SETTING Tertiary academic medical center. PATIENTS Four patients with complete facial nerve paralysis due to lesions of the facial nucleus in the pons(More)
Many guidelines for reporting hearing results use the threshold at 3 kilohertz (kHz), a frequency not measured routinely. This study assessed the validity of estimating the missing 3-kHz threshold by averaging the measured thresholds at 2 and 4 kHz. The estimated threshold was compared to the measured threshold at 3 kHz individually and when used in the(More)
OBJECTIVE To present a series of patients with facial nerve schwannomas (FNSs) presenting as occluding external auditory canal (EAC) masses. STUDY DESIGN Retrospective case series. PATIENTS Four patients were identified with mastoid segment FNSs occluding the EAC. Three patients presented with conductive hearing loss (CHL), and the fourth presented with(More)