The two-stage excision of huge acoustic neurinomas

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Abstract
Total removal of huge acoustic neurinomas was carried out in 23 patients by a 2-stage suboccipital transmeatal approach with microsurgical technique. There was no operative mortality. Good results were obtained in 18 (78%) of the patients who have returned to normal activities or full-time employment. Five patients (22%) have residual preoperative neurological deficits causing a reduced level of activity. All of these, except 1, are able to care for themselves. None of the patients have had any further significant neurological deficit caused by the operative procedures. Anatomical integrity of the facial nerve was maintained in 17 patients (74%). Surgical technique, operative morbidity and results are thoroughly discussed. The potential advantages of this technique are stressed.