RESUMO
OBJECTIVE: To analyze the results of the subjective visual vertical test using the "bucket method" in patients with chronic suppurative otitis media (CSOM). STUDY DESIGN: Cross-sectional, controlled study. SETTING: Outpatient otology clinic in a tertiary care hospital. SUBJECTS AND METHODS: Patients had CSOM, defined as the presence of chronic infection or inflammation of the middle ear cleft, associated with a perforation of the tympanic membrane, frequent or intractable middle ear suppuration, with or without cholesteatoma. Controls were selected using a nonprobability, purposive sampling method. We excluded patients with neurologic or metabolic diseases, cognitive deficits, otosclerosis, vestibular migraine, Ménière's disease, past use of ototoxic medication, or head and neck cancer. The volunteers were subjected to the subjective visual vertical test using the "bucket method." The results obtained in our study and control groups were analyzed using nonparametric tests. RESULTS: Our study comprised 51 patients with CSOM and 50 controls. In the CSOM group, we observed that 72.5% of the patients had vestibular symptoms in the past year, and 70.5% had abnormalities identified in at least 1 vestibular function test. The subjective visual vertical test revealed that patients with CSOM (with and without cholesteatoma) had significantly higher deviations of the true vertical as compared with controls (CSOM, 3.66°; controls, 0.76°; P < .001). CONCLUSION: Our results revealed that CSOM was associated with high rates of vestibular symptoms, abnormal vestibular function tests, and abnormal subjective vertical visual results.
Assuntos
Otite Média Supurativa/complicações , Doenças Vestibulares/etiologia , Testes de Função Vestibular , Adulto , Estudos de Casos e Controles , Doença Crônica , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Otite Média Supurativa/fisiopatologia , Doenças Vestibulares/diagnóstico , Vestíbulo do Labirinto/fisiologia , Vestíbulo do Labirinto/fisiopatologiaRESUMO
Introducción: El examen funcional del VIII par, mediante la prueba calórica permite conocer la función del canal semicircular horizontal, dejando de lado la evaluación de otras estructuras como el complejo utrículo-sacular. Objetivo: Evaluar el rendimiento diagnóstico de pruebas vestibulares de bajo costo y complejidad cefálico para suplir esta falencia. Material y método: En 34 pacientes con indicación de estudio funcional de VIII par se realizaron, además de las pruebas tradicionales, el test visual subjetivo vertical mediante prueba del balde, la prueba de impulso cefálico a ojo desnudo, y la aplicación del cuestionario de sintomatología "Dizziness Handicap Inventory". Resultados: Considerando el VIII par clásico como patrón de oro, se encuentra evidencia objetiva de patología en 50% de la muestra. Con la incorporación de los nuevos exámenes esta cifra aumenta a 85%. Se realizó análisis de discrepancia sobre pacientes con resultados normales en el estudio tradicional, pero anormal según los nuevos exámenes. El 100% de dicho grupo presenta una puntuación patológica en el cuestionario de síntomas. Más aún, los valores de desviación de verticalidad correlacionaron fuertemente con la puntuación de sintomatología (r =0,79; p =0,002). Conclusiones: El análisis de discrepancia sugiere que los nuevos exámenes son confiables en identificar patología en el estudio. Incluir en el estudio tradicional del VIII par pruebas de baja complejidad y corta duración (menos de 5 minutos en su conjunto) podría aumentar el rendimiento diagnóstico del estudio del equilibrio en hasta 35%.
Introduction: Traditionally, the assessment of vestibular function is based on the caloric test. This procedure assesses mainly the horizontal semicircular canal function, leaving other vestibular structures aside, such as the utricule-saccule complex. Aim: To assess the diagnostic performance low complexity tests to compensate for these issues. Material and methods: 34 patients with indication for vestibular assessment were recruited. In addition to traditional testing (caloric test and postural provocation maneuvers), the mentioned Subjective Visual Vertical and Head Impulse tests were applied alongside the Dizziness Handicap Inventory for vestibular symptoms. Results: Considering caloric testing and Dix-Hallpike maneuvers as gold standard, 50% of the sample presented an objective cause of their symptomatology. When including the new test, this value increases to 85%. A discrepancy analysis was conducted on the group with normal traditional tests and abnormal new tests. 100% of this group showed symptoms score above pathological levels. Furthermore, there was a strong relationship between deviation on the Visual Vertical test and symptomatology (r =0,79; p =0,002). Conclusion: The discrepancy analysis suggests that the new tests are reliable in determining pathology on this study. It these test are included to traditional testing, diagnostic performance may increase up to 35%.