Publications by authors named "Ana Beatriz Ramada"
Article Synopsis
- USH2 is a genetic disorder characterized by hearing loss, vision impairment, and normal vestibular function, with potential involvement of otolith receptors.
- Recent tests on 22 USH2 patients revealed that many had absent cervical and ocular vestibular evoked myogenic potentials (c-VEMPs and o-VEMPs), indicating otolith dysfunction.
- The study suggests integrating vestibular testing into USH2 evaluations may improve understanding and management of the condition, despite no direct correlation found between reported dizziness and vestibular test outcomes.
Objectives: To explore postural disability in Usher Syndrome (USH) patients using temporal posturographic analysis to better elucidate sensory compensation strategies of deafblind patients for posture control and correlate the Activities-specific Balance Confidence (ABC) scale with posturographic variables.
Design: Thirty-four genetically confirmed USH patients (11 USH1, 21 USH2, 2 USH 4) from the Otolaryngology Outpatient Clinic and 35 controls were prospectively studied using both classical and wavelet temporal analysis of center of pressure (CoP) under different visual conditions on static and dynamic platforms. The functional impact of balance was assessed with the ABC scale.
Usher Syndrome classification takes into account the absence of vestibular function but its correlation with genotype is not well characterized. We intend to investigate whether video Head Impulse Test (vHIT) is useful in screening and to differentiate Usher Syndrome types. 29 Usher patients (USH) with a genetically confirmed diagnosis and 30 healthy controls were studied with vHIT and dizziness handicap inventory questionnaire (DHI).
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