Contralateral Hearing Loss After Resection of Vestibular Schwannoma in a Patient with Neurofibromatosis 2: Case Report and Literature Review

Contralateral sudden sensorineural hearing loss after resection of petroclival meningioma

“…In the case presented here, we chose the combined supra-and infratentorial approach to extend bone resection to enhance subtemporal exposure to visualize the petrous tip and clivus. Most contralateral hearing loss cases that are reported occur after middle fossa approach surgery, most as a result of the presigmoid approach [9,15,16]. The presigmoid approach enables graded removal of the petrous ridge but increases the chance of facial nerve injury or hearing loss.…”

“…Contralateral sudden sensorineural hearing loss (SNHL) occurring after cerebellopontine surgery is rare [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Presentation of petroclival meningioma followed by contralateral SNHL as a result of cerebellopontine surgery is quite uncommon, with only one case being previously reported [17].…”

Retrospective Investigation of Contralateral Hearing Thresholds of Patients With Sporadic Vestibular Schwannoma

“…In our electronic database, there were multiple pure-tone audiogram measurements per patient. Since, as mentioned earlier, subclinical and pronounced contralateral hearing loss after surgery was detected in several patients, [17][18][19][20][21][22][23][24][25][26][27][28] the last measurement directly before therapy and the most recent puretone audiogram after therapy were used for the comparison. For patients under the wait-and-scan strategy, the most recent puretone audiogram was used for analysis.…”

“…There are case reports documenting contralateral hearing loss after surgical removal of VSs. [17][18][19][20][21][22][23][24][25][26] Furthermore, Walsted et al 27,28 demonstrated in 2 prospective studies that more than half of their patients had a small threshold increase after VS surgery, which might be subclinical. Probably the most accurate explanation for this phenomenon is intraoperative loss of CSF, which leads to decreased pressure of CSF and, via the cochlear aqueduct, also of the perilymph.…”

“…There are case reports documenting contralateral hearing loss after surgical removal of VSs 17–26 . Furthermore, Walsted et al 27 , 28 demonstrated in 2 prospective studies that more than half of their patients had a small threshold increase after VS surgery, which might be subclinical.…”