INTRODUCTION AND OBJECTIVES To determine the safety and efficacy of endoscopic keyhole surgery in patients with cerebellopontine angle tumours. MATERIALS AND METHODS This was a retrospective study of patients with… Click to show full abstract
INTRODUCTION AND OBJECTIVES To determine the safety and efficacy of endoscopic keyhole surgery in patients with cerebellopontine angle tumours. MATERIALS AND METHODS This was a retrospective study of patients with cerebellopontine angled tumours treated by fully endoscopic retrosigmoid keyhole approach in a tertiary centre during a period of four years. Preoperative, transoperative and postoperative variables were analysed. RESULTS A number of 40 patients were included. The age average was 49.4 years and male/female proportion was 0.4-1. We found 31 vestibular schwannomas (77.5%), five meningiomas (12.5%), two cholesteatomas (5.0%) and two metastases (5.0%). Vestibular schwannomas Hannover type IIIb, IVa and IVb predominated. The surgical resection was total or near-total 92.5% of patients. Hearing preservation rate was 62.5% and acceptable facial function nerve function rate was 80% after six months. Hospital stay was 7.5 days. The total or near total resection and functionally preservation rate was high. Complications were unusual. CONCLUSIONS Endoscopic retrosigmoid keyhole approach represented a safe and efficient procedure in selected patients with cerebellopontine angle tumours.
               
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