EN
The aim of the study was to evaluate the fistula test in patients of chronic otitis media with cholesteatoma and co-occurrence of fixation nystagmus. The results show limited diagnostic usefulness of fistula test due to the absence of a typical fistula nystagmus and prevalence of fixation instability. However, vestibular-spinal reactions and vertigo were observed in the test, which points to the usefulness of these symptoms in diagnostic procedures.