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Labyrinthine function after semicircular canal surgery on seventeen patients with cholesteatoma

Dear Editor, In diseases, affecting semicircular canals surgical treatment may be needed. Surgical techniques on individual semicircular canals include resurfacing or plugging of the canal. Traditionally, bony defects in labyrinthine bone due to cholesteatoma have been sealed with autologous patch. Later other indications, such as superior canal dehiscence (SCD) or benign paroxysmal positional vertigo (BPPV), for semicircular canal surgery have evolved for clinical use. Whatever the underlying pathology and surgical solution is, possible preservation of function or efficacy of surgery on motion sensitivity of affected semicircular canal can be followed by measuring eye movement response of that canal to specific head impulses. The aim of this study was to evaluate preand postoperative symptoms, vestibular function and hearing after surgery on semicircular canal fistula. The implications of surgical techniques on semicircular canal function will be discussed in patients with cholesteatoma.