RESUMO
BACKGROUND: Patients with unilateral peripheral vestibular deficit (UPVD) experience vertigo, dizziness, disability, negative influences on their quality of life, anxiety, and depression. In vestibular rehabilitation, virtual reality (VR) has proven to be effective. This investigation sought to evaluate the efficacy of the Balance Rehabilitation Unit (BRUTM) (MedicaaTM Montevideo, Uruguay, Balance Suite, version BRU 415) in patients with UPVD. METHODS: A prospective, randomized, controlled study involved 38 patients from the Otoneurologic Service at the National Institute of Rehabilitation "Luis Guillermo Ibarra Ibarra" in Mexico. A physician specialist diagnosed the patients with UPVD and assigned them randomly to one of two groups. Group 1 (n = 19) received traditional vestibular rehabilitation, whereas Group 2 (n = 19) received BRUTM-supported vestibular rehabilitation. Both groups were monitored by medical professionals. Patients were evaluated with the Dizziness Handicap Inventory, static and dynamic balance assessments, the dynamic gait index, and the sensory organization test. The statistical analysis was conducted using the Student's t-test, with p 0.05 considered statistically significant. RESULTS: The difference in mean age between the conventional therapy and BRUTM groups was not statistically significant. Both conventional vestibular rehabilitation and the BRUTM led to statistically significant improvements in all assessed parameters, with no statistically significant differences between the two groups. CONCLUSION: Balance, mobility, and quality of life were enhanced similarly in UPVD patients by BRUTM-supported vestibular rehabilitation and conventional vestibular rehabilitation. In addition, BRUTM facilitated patient motivation, exercise feedback, and confidence enhancement.
RESUMO
OBJECTIVE: To compare the amplitude of potentials by acoustic stimulation at 500 Hz versus 1000 Hz in healthy subjects. METHODS: 25 subjects; potentials were performed with acoustic stimuli burst-type at 500 and 1000 Hz with a stimulation rate of 5.1 at 100 dB in both ears. Descriptive statistics tests were performed, confidence intervals were calculated for the mean with 95% reliability, standard error graphs and t-test for related samples. RESULTS: The values obtained in amplitude when performing an acoustic stimulus at 1000 Hz show a faster response compared to that obtained in the frequency of 500 Hz. The t-test showed a significant difference in the amplitude in the 1000 Hz frequency between ears with a significance value of p < 0.025. CONCLUSIONS: It is strengthened the hypothesis that in the amplitude of potentials by aerial acoustic stimulation in the frequency of 1000 Hz a greater amplitude is generated in relation to the one generated in the frequency of 500 Hz.
OBJETIVO: Comparar la amplitud de los potenciales miogénicos vestibulooculares por estimulación acústica a 500 y 1000 Hz en sujetos sanos. MÉTODO: Se estudiaron 25 sujetos y se realizaron potenciales con estímulos acústicos tipo burst a 500 y 1000 Hz con una tasa de estimulación de 5.1 a 100 dB en ambos oídos. Se realizaron pruebas de estadística descriptiva y se calcularon los intervalos de confianza para la media con un 95% de confiabilidad, las gráficas de error estándar y la prueba t para muestras relacionadas. RESULTADOS: Los valores obtenidos en amplitud al realizar estímulo acústico a 1000 Hz muestran una respuesta más rápida en comparación con la obtenida en la frecuencia de 500 Hz. La prueba t mostró una diferencia significativa en la amplitud en la frecuencia 1000 Hz entre oídos, con un valor de significancia p < 0.025. CONCLUSIONES: Se fortalece la hipótesis de que en los potenciales por estimulación acústica aérea en la frecuencia de 1000 Hz se genera una mayor amplitud en relación con la generada en la frecuencia de 500 Hz.