• 026994

    Flexible endoscopic assistance in the surgical management of vestibular schwannomas

     

    Francesco Corrivetti, Luciano  Mastronardi

     

    Introduction: Endoscopic-assisted techniques has frequently been applied to vestibular schwannoma (VS) surgery allowing to increase the extent of resection, minimize complications, and preserve facial nerve and auditory functions.

    Objective: In this paper we retrospectively analyze the effectiveness of flexible endoscope for endoscopic-assisted retrosigmoid approach in the surgical management of VS of various size.

    Methods: The authors conducted a retrospective analysis on 32 patients who underwent combined microscopic and flexible endoscopic resection of VS of various sizes over a period of 16 months Flexible endoscopic assisted retrosigmoid approach was performed in all cases, and in 6 cases flexible and rigid endoscopic control were used in combination to evaluate the differences between the two surgical instruments.

    Results: Gross-total resection was achieved in 84% of the cases and near-total resection was performed in the rest of them. Excellent or good facial nerve function was observed in all except one case with a preoperative severe facial palsy. Hearing preservation surgery (HPS) was attempted in 11 cases and accomplished in 9 (81,8%). A tumor remnant was endoscopically identified in the fundus of the IAC in all cases (100%). Endoscopic assistance increased the rate of total removal and no intrameatal residual tumor was seen at radiological follow-up.

    Conclusions: Combined microsurgical and flexible endoscopic assistance provides remarkable advantages in the pursuit of maximal safe resection of VS, preservation of facial nerve and auditory functions, minimizing the risk of post-operative complications.

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