Signe Schuster Grasel

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AIMS To assess potential alterations of the nasal mucosa by clinical and histopathological evaluation of workers exposed to sulphuric acid mists at anodising plants, correlating the findings with duration of exposure and sulphuric acid concentrations in the air, and comparing them with a control group. METHODS Fifty two workers from five plants underwent(More)
We present two cases of schwannoma of the nasal septum. One of the patients has neurofibromatosis type 2; however, her main complaint was nasal obstruction. Schwannoma deriving from the septum is an extremely rare pathology, both in systemic neurofibromatosis type 2 and as a solitary lesion. There are no characteristic symptoms. Histopathologic examination(More)
CONCLUSION The correlations between behavioral and auditory steady-state response (ASSR) thresholds were significant at 500, 1000, 2000, and 4000 Hz. ASSR presented high sensitivity and specificity in the detection of residual hearing in cochlear implant candidates when compared with warble-tone audiometry. OBJECTIVES To assess residual hearing in(More)
INTRODUCTION ASSR allow frequency-specific evaluation in intensities up to 120dB HL and detection of residual hearing in patients with severe-to-profound hearing loss. AIM to compare ASSR thresholds and behavioral test results in children with suspected severe-to-profound hearing loss. METHODS Cross sectional study to compare ASSR and behavioral(More)
OBJECTIVE This study aimed to evaluate if hearing performance is a predictor of postural control in cochlear implant (CI) users at least six months after surgery. METHODS Cross-sectional study including (CI) recipients with post-lingual deafness and controls who were divided into the following groups: nine CI users with good hearing performance (G+), five(More)
INTRODUCTION  Sudden hearing loss (SHL) is an ENT emergency defined as sensorineural hearing loss (SNHL) ≥ 30 dB HL affecting at least 3 consecutive tonal frequencies, showing a sudden onset, and occurring within 3 days. In cases of SHL, a detailed investigation should be performed in order to determine the etiology and provide the best treatment.(More)
OBJECTIVE To evaluate Auditory Steady-State Responses (ASSR) at high intensities in pediatric cochlear implant candidates and to compare the results to behavioral tests responses. METHODS This prospective study evaluated 42 children with suspected severe-to-profound hearing loss, aged from 3 to 72 months. All had absent ABR and OAE responses. ASSR were(More)
CONCLUSIONS Elderly subjects without vestibular dysfunction had an overall worse performance as compared with the group of normal adults, confirming that age has a negative impact on balance. The group of elderly subjects with vestibular dysfunction had more important balance alterations than those without, confirming that vestibular dysfunction has a major(More)
OBJECTIVE: This study compared the results of the caloric test with those of the video head impulse test obtained during the same session and evaluated whether the former can be used to screen for non-acute vestibular dysfunction. METHODS: A total of 157 participants complaining of dizziness with vestibular characteristics of varying durations and(More)
INTRODUCTION Auditory steady-state responses (ASSR) are an important tool to detect objectively frequency-specific hearing thresholds. Pure-tone audiometry is the gold-standard for hearing evaluation, although sometimes it may be inconclusive, especially in children and uncooperative adults. AIM Compare pure tone thresholds (PT) with ASSR thresholds in(More)