Acta Neurochir (2017) 159:1579–1585 DOI 10.1007/s00701-017-3235-8 ORIGINAL ARTICLE - NEUROSURGICAL TECHNIQUES Preservation of hearing following awake surgery via the retrosigmoid approach for vestibular schwannomas in eight consecutive patients 1 2 2 2 Nobusada Shinoura & Akira Midorikawa & Kentaro Hiromitsu & Shoko Saito & Ryoji Yamada Received: 14 December 2016 /Accepted: 31 May 2017 /Published online: 3 July 2017 Springer-Verlag GmbH Austria 2017 . . Abstract Keywords Awake surgery Vestibular schwannomas Facial Background Hearing preservation in patients with vestibular nerve Hearing schwannomas remains difficult by microsurgery or radiosurgery. Method In this study, awake surgery via the retrosigmoid ap- Introduction proach was performed for vestibular schwannomas (volume, 11.6 ± 11.2 ml; range, 1.3–26.4 ml) in eight consecutive pa- Postoperative preservation of hearing following surgery for tients with preoperative quartering of pure tone audiometry vestibular schwannomas is still not good, although the tech- (PTA) of 53 ± 27 dB. nique of microsurgery (MS) for these tumors has recently Results After surgery, hearing was preserved in seven patients evolved. According to recent reports, as for preservation of and improved in one patient. The postoperative quartering hearing after MS for vestibular schwannomas, serviceable PTA was 51 ± 21 dB. Serviceable hearing (class A
Acta Neurochirurgica – Springer Journals
Published: Jul 3, 2017
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