Impact of video-endoscopy on the results of retrosigmoid-transmeatal microsurgery of vestibular schwannoma: prospective study

0395441 - ÚEM 2014 RIV US eng J - Journal Article
Chovanec, M. - Zvěřina, E. - Profant, Oliver - Skřivan, J. - Čakrt, O. - Lisý, J. - Betka, J.
Impact of video-endoscopy on the results of retrosigmoid-transmeatal microsurgery of vestibular schwannoma: prospective study.
European Archives of Oto-Rhino-Laryngology. Roč. 270, č. 4 (2013), s. 1277-1284. ISSN 0937-4477. E-ISSN 1434-4726
Grant - others:GA MZd(CZ) NS9909
Institutional support: RVO:68378041
Keywords : vestibular schwannoma * acoustic neuroma * endoscopy-assisted microsurgery
Subject RIV: FH - Neurology
Impact factor: 1.608, year: 2013

Eighty-nine patients with untreated unilateral sporadic vestibular schwannoma were treated by surgical resection via a retrosigmoid approach and in 39 cases endoscopy assisted microsurgical (EA-MS) removal was performed. Endoscopic technique was used for monitoring of neuro-vascular anatomy in CPA, during dissection of the meatal portion of tumors, assessment of radicality and for identification of potential pathways for CSF leak formation. Improved cochlear nerve, brainstem auditory evoked potentials, hearing preservation and better facial nerve function were observed in EA-MS group. There were no significant differences in the postoperative tinnitus and the postoperative hearing handicap inventory in both groups. Adjunctive use of endoscope during the VS surgery due to its magnification and illumination enable superior view in the operative field, helps the surgeon to preserve facial nerve and in selected cases also hearing.
Permanent Link: http://hdl.handle.net/11104/0224055