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Published on: January 17, 2018
Endoscopic retrosigmoid keyhole approach in cerebellopontine angle tumors. A surgical cohort
Joel Caballero-García1, Iosmill Morales-Pérez1, Adolfo Michel-Giol-Álvarez1
1Servicio de Neurocirugía, Instituto Nacional de Oncología y Radiobiología, La Habana, Cuba.
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.
