Hearing improvement after resection of cerebellopontine angle meningioma: case study of the preoperative role of transient evoked otoacoustic emissions.
In a retrospective case study of a patient with a right-sided cerebellopontine angle mass lesion, transient evoked otoacoustic emissions were robustly present despite a severe to profound sensorineural hearing loss and abnormal auditory brainstem response. These results were interpreted as suggestive of a neural site of lesion, and the potential for planned, preserved, or improved hearing by a suboccipital surgical craniotomy was considered. A gross total resection was successful. Three years postoperatively, the patient has normal hearing sensitivity and word recognition ability.
Kileny
P R
PR
Division of Audiology and Electrophysiology, University of Michigan, Ann Arbor, USA.
Edwards
B M
BM
Disher
M J
MJ
Telian
S A
SA
D000161:Acoustic Stimulation / Q000379:methods*; D000328:Adult; D002528:Cerebellar Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D002530:Cerebellopontine Angle / Q000473:pathology* / Q000601:surgery*; D003051:Cochlea / Q000503:physiopathology*; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008579:Meningioma / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D011184:Postoperative Period; D011300:Preoperative Care; D012720:Severity of Illness Index