• World Neurosurg · Jul 2019

    Management of Meningiomas involving the Major Venous Sinuses: A single-institution experience.

    • Nasser Mohammed, Vinayak Narayan, Devi Patra, Amey R Savardekar, Muhammad Riaz, and Anil Nanda.
    • Department of Neurological Surgery, University of Virginia School of Medicine, Charlottesville, Virginia, USA.
    • World Neurosurg. 2019 Jul 1; 127: e179-e185.

    BackgroundIn the management of meningiomas invading the major venous sinuses, balance between tumor control and complication prevention is desirable. The aim of this study was to describe an institutional experience in management of meningiomas involving major venous sinuses.MethodsA retrospective study was carried out over 18 years, between 1999 and 2017, in patients with meningiomas involving major venous sinuses. Clinical features, operative strategy, histology, postoperative complications, adjuvant therapy, and long-term follow-up were studied.ResultsThe study included 84 patients. Neurologic deficits were seen in 26 (31%) patients at presentation. The recurrence rates in Simpson grade I, II, and III excision were 7.6%, 25%, and 29.4% at a mean follow-up of 45.4 months (range, 1-192 months). No intervention of the involved sinus was done in 64 (76%) cases, venotomy was done in 3 (3.5%) cases, sinus resection without graft was done in 14 (16.6%) cases, and sinus reconstruction with patch was done in 3 (3.5%) cases. There were 53 (67.0%) patients with World Health Organization grade I histology and 25 (31.6%) patients with World Health Organization grade II histology. Fifteen recurrences were treated with Gamma Knife radiosurgery. In univariate analysis using Cox proportional hazards model, World Health Organization grade (P = 0.036, hazard ratio 2.90, 95% confidence interval = 1.07-7.87) and Simpson grade (P = 0.017, hazard ratio 2.90, 95% confidence interval = 1.18-5.29) were found to be significant factors to predict tumor recurrence.ConclusionsManagement of meningiomas involving major venous sinus with microsurgical techniques and adjuvant Gamma Knife radiosurgery achieves a good tumor control rate with an acceptable complication rate.Copyright © 2019 Elsevier Inc. All rights reserved.

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