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Type: Artigo de periódico
Title: Acoustic neuroma (vestibular schwannoma) - surgical results on 240 patients operated on dorsal decubitus position
Author: Cardoso, AC
Fernandes, YB
Ramina, R
Borges, G
Abstract: Objective: To evaluate the result of the surgical treatment of vestibular schwannoma (VS) operated in dorsal decubitus (mastoid position). Method: 240 patients with a VS underwent a retrosigmoid craniotomy for tumor resection in dorsal decubitus (mastoid position). The function of 7(th) and 8(th) cranial nerves was monitored during surgery and the opened internal auditory canal (IAC) was reconstructed using a vascularized dura flap, muscle and fibrin glue. Results: Complete tumor removal was achieved in 99% of the cases, with a mortality of 1.6%. The facial nerve function was preserved in 85% of cases and hearing in 40% of the patients (with preoperative hearing) with tumors of up 1.5 cm in diameter. The incidence of cerebrospinal fluid leak was 5.8% and meningitis 2.9%. Venous air embolism was registered in 3% of cases; it was not associated to mortality. Conclusion: Surgical removal of VS in dorsal position has several advantages; the morbidity and mortality are very low.
Subject: acoustic neuroma
vestibular schwannoma
mastoid position
venous air embolism
Country: Brasil
Editor: Assoc Arquivos Neuro- Psiquiatria
Rights: aberto
Identifier DOI: 10.1590/S0004-282X2007000400011
Date Issue: 2007
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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