Recurrent Contralateral Hearing Loss After 2 Craniotomies for Vestibular Schwannoma

Abstract

The recurrence of contralateral hearing loss after craniotomies years apart suggests that patient specific anatomic risk factors predispose an individual to hearing loss after contralateral cerebellopontine angle surgery. Patients with previous history of contralateral hearing loss should be counseled that they may be at increased risk for recurrent loss in the setting of re-resection.

Progression of Contralateral Hearing Loss in Patients with Unilateral Ear Involvement: A Scoping Review

“…The majority of patients had received steroids for their hearing loss treatment. 1 , 3 - 7 , 20 , 22 - 24 , 27 , 29 We found that hearing thresholds have been improved (partially or completely) in a significant number of these studies.…”

“…Cerebrospinal fluid leakage was the most reported etiology in these studies. 1 , 4 , 9 , 20 , 24 , 26 - 28 , 30 Vascular decompression and sacrification of veins during the surgery and allergic responses have also been reported as a probable etiology of CoHL in these patients. The onset of hearing loss varied from immediately to 18 months after surgery.…”

“…Cerebrospinal fluid leakage has been suggested as one of the most important etiologies for CoHL during posterior fossa surgeries. 1 , 4 , 9 , 20 , 24 , 26 - 28 , 30 Normally, the pressure of CSF, perilymph, and endolymph fluid levels are equal. Any alternations in CSF pressure (such as CSF leakage) will be transmitted to the perilymph fluid via the cochlear aqueduct.…”

Contralateral sudden sensorineural hearing loss after resection of petroclival meningioma

“…It has also been shown that patients with anatomical features of cochlear aqueduct hyperpatent are at risk for contralateral hearing loss [9]. An enlarged CSF connection to the perilymphatic space may make the cochlea vulnerable to low-pressure transients, which following posterior fossa surgery, this condition may become recurrent [10]. However, there is no preoperative assessment for patency of the cochlear aqueduct [4].…”

“…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].…”