• Pradeep Setty, Kenneth P D'Andrea, Emily Z Stucken, Seilish Babu, Michael J LaRouere, and Daniel R Pieper.
• Section of Neurosurgery, St. John Providence Health System/Michigan State University, Southfield, Michigan, United States.
• J Neurol Surg A Cent Eur Neurosurg. 2016 Jan 1; 77 (1): 11-8.

ObjectiveTo describe our operative technique and results from patients who underwent fully endoscopic resection of cerebellopontine angle (CPA) meningiomas.DesignProspective observational study.SettingA single academic institution that includes both neurosurgery and neuro-otology.ParticipantsEleven consecutive patients who underwent fully endoscopic resection of a CPA meningioma.Main Outcome MeasuresHearing preservation, based on the American Association of Otolaryngology-Head and Neck Surgeons score as well as facial nerve preservation base on the House-Brackmann (HB) score. In addition, the extent of resection and complication rates was studied.ResultsAll 11 patients underwent successful gross total resection, Simpson grade 2, of their meningioma, seen both intraoperatively and on postoperative imaging. Overall, 100% of patients maintained normal facial nerve function (HB 1/6). Audiometric testing revealed that 10 of 11 patients maintained either stable or improved hearing postoperatively based on Committee on Hearing and Equilibrium Guidelines for the Evaluation of Hearing Preservation in Acoustic Neuroma grade with the remaining patient retaining serviceable hearing. Tumor size ranged from 0.5 to 2.5 cm (mean: 1.54 cm). Mean operative time was 166 minutes (range: 122-207 minutes); estimated blood loss averaged 54.5 mL. Hospital length of stay ranged from 2 to 6 days (mean: 3.1 days), and a superficial wound infection was the only complication seen in one patient.ConclusionFully endoscopic techniques can be used in CPA meningioma resection with excellent clinical results as an alternative to the traditional open microscopic approach.Georg Thieme Verlag KG Stuttgart · New York.

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