[Sudden hearing loss in inner ear trauma].

Quite often a sudden surdity can appear after baro or mechanical traumas, it happens because of rupture of the round window membrane which leads to the formation of the perilymphatic fistula. The article deals with the syndrome of the round window membrane rupture. The authors describe two successful cases of treatment of patients with vestibular disorders caused by posttraumatic perilymphatic fistula. Practical recommendations are given for providing a tertiary medical care in emergency situations.