A 53-year-old man suffered contralateral hearing disturbance one day after acoustic neuroma surgery. Hearing function gradually recovered after steroid and hyperbaric therapy. Contralateral hearing disturbance after acoustic neuroma surgery is an extremely rare complication that can also occur after other posterior fossa surgery. The mechanism of this rare phenomenon remains unclear, but the patent cochlear aqueduct may be involved.

Shuto, Matsunaga, Suenaga, , , , , , (2011). Contralateral hearing disturbance following posterior fossa surgery. Neurologia medico-chirurgica, 2011 ;51(6):434-7. https://www.ncbi.nlm.nih.gov/pubmed/21701108