Clinical and epidemiological study of vertigo at an outpatient clinic

Objectives - The main goal of this study was to set up a database of vertigo patients that could serve as a reference for other ENT services treating these pathologies. We present a clinical and epidemiological study of vertigo in an ENT outpatient clinic in 2001 and describe our diagnosis protocol. Material and Methods - This was a prospective study of 591 patients (18% of the total number of 3283 first visits) controlled and treated at the ENT service of the Hospital Clinic in Barcelona. The main variables studied were sex, age, clinical characteristics and the results of physical and basic instrumental examinations. Results - After obtaining a clinical history and performing a physical examination, pure-tone audiometry, impedance audiometry and electronystagmography, 394 patients were discharged with a medical report, diagnosis and prescription for treatment. The other 197 patients whom the standard examination was unable to diagnose were referred to a multidisciplinary committee for re-evaluation. Conclusion - A correct diagnosis is essential to ensure adequate treatment and attain an acceptable balance between cost and effectiveness.