Abstract
Persistent [human] labyrinthine symptoms may manifest as unsteadiness, veering or frank rotational vertigo. When these symptoms are resistant to medical therapy and are associated with hearing in the involved ear which is not of a serviceable level then a transmastoid labyrinthectomy may be of value. This operation may be performed expeditiously and safely; if the entire vestibular epithelium is removed then the results of surgery are effective and predictable.