Endoscope-assisted middle fossa craniotomy for resection of inferior vestibular nerve schwannoma extending lateral to transverse crest

Neurosurgical Focus
Adam N MasterGregory P Lekovic

Abstract

OBJECTIVE The authors describe their results using an endoscope as an adjunct to microsurgical resection of inferior vestibular schwannomas (VSs) with extension into the fundus of the internal auditory canal below the transverse crest. METHODS All patients who had undergone middle fossa craniotomy for VSs performed by the senior author between September 2014 and August 2016 were prospectively enrolled in accordance with IRB policies, and the charts of patients undergoing surgery for inferior vestibular nerve tumors, as determined either on preoperative imaging or as intraoperative findings, were retrospectively reviewed. Age prior to surgery, side of surgery, tumor size, preoperative and postoperative pure-tone average, and speech discrimination scores were recorded. The presence of early and late facial paralysis, nerve of tumor origin, and extent of resection were also recorded. RESULTS Six patients (all women; age range 40-65 years, mean age 57 years) met these criteria during the study period. Five of the 6 patients underwent gross-total resection; 1 patient underwent a near-total resection because of a small amount of tumor that adhered to the facial nerve. Gross-total resection was facilitated using the operative endoscop...Continue Reading

References

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Citations

Jul 20, 2018·Current Opinion in Otolaryngology & Head and Neck Surgery·Kevin A PengEric P Wilkinson
May 24, 2018·Journal of Neurosurgical Sciences·Mohammed H Aref, A Samy Youssef
Sep 11, 2019·Neuro-oncology·Roland GoldbrunnerJoerg-Christian Tonn
Jul 27, 2021·Journal of Neurological Surgery. Part B, Skull Base·André Beer-FurlanAldo Cassol Stamm
Sep 13, 2021·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Saba Raza-KnightAndrew F Alalade

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