Contralateral Sudden Sensorineural Hearing Loss After Vestibular Schwannoma Surgery.

Contralateral sudden sensorineural hearing loss (SNHL) after vestibular schwannoma (VS) surgery is extremely rare, and the mechanism of hearing loss remains unclear. This report aims to provide details of a new case of contralateral SNHL after VS resection, discuss the possible causes of SNHL, and review the relevant literature. A 32-year-old woman developed sudden, profound SNHL after VS surgery. She gradually recovered partial hearing after 6 months of steroid, vasodilator, and neurotrophic therapy. Compensatory endolymphatic hydrops caused by the loss of cerebrospinal fluid might be responsible for this case of sudden SNHL following VS surgery. [ABSTRACT FROM AUTHOR]