“…However, saccotomy is still performed and even revision saccotomy of the endolymphatic sac [6], as an alternative to vestibular nerve section [7], or labyrinthectomy, in cases of concurrent nonserviceable sensorineural hearing loss [8], have been used as treatment options after failure of an initial saccotomy to control MAIV. Revision saccotomy completely controlled vertigo spells in 62% of patients with MAIV and decreased the frequency and intensity of the vertigo attacks in 14% after an average follow-up period of 20 months following an initial saccotomy procedure [6]. After 18 months, vertigo had recurred in 7% of these patients, and another 17% showed no improvement at all after revision saccotomy.…”