Temporal bone fracture . Severe dizziness after the injury, with skull or temporal bone CT scan indicating a fracture. Either a conductive or sensorineural hearing loss may be present. Vestibular deficits are also common, especially in the oblique variety. Bilateral vestibular problems are exceedingly rare.
Treatment is conservative.
Prophylactic antibiotics are given, usually for 4 weeks. Round window fistula. Perilymph fistula . Usually symptoms of imbalance and dizziness provoked by straining or blowing the nose. The frequency to which this syndrome occurs is controversial, but general opinion holds that it is rare.