Abstract
We produced an interview sheet to assess for the presence of benign paroxysmal positional vertigo (BPPV), and to diagnose the subtype of BPPV and the affected ear when the diagnosis was BPPV. One hundred and thirty-seven patients, who were attending our clinic as outpatients with the chief complaint of dizziness, took the interview. We compared the result of the diagnosis from the examination for nystagmus with the result that we estimated from the answers to the interview sheet. In 37% (14 cases) of the patients who showed benign paroxysmal positional nystagmus (BPPN) the subtype of BPPV and the affected ear were diagnosed correctly based on the answers to the interview sheet, which was almost same result as a previous report (Higashi-Shingai K, et al. Acta Oto-laryngologica, 2011). We found that there was a problem when we presumed the diagnosis to be the horizontal canal type of BPPV with apogeotropic positional nystagmus and was clear that this is one point we should improve in the future. In addition, it is important to administer the Schellong test, and to examine for the presence or absence of a blood pressure regulation disorder when we suspect a diagnosis of BPPV although we cannot see BPPN.
