Abstract
Symptomatic trigeminal neuralgia caused by small (<3 cm) skull base meningiomas is treated by radiosurgery or surgical resection. Although radiosurgery is less invasive, surgical resection provides more rapid resolution of symptoms. We reviewed a short series of patients who underwent an anterior transpetrosal approach for surgical resection of meningiomas causing trigeminal neuralgia. A retrospective review of 5 consecutive patients with meningiomas causing trigeminal neuralgia of the senior author was included. Preoperative parameters (size, proximity to critical neurovascular structures, presence of brainstem compression), intraoperative parameters (Simpson grade of resection, loss of brainstem evoked potentials, surgical approach), and outcomes (symptom resolution, extent of resection, follow-up) were recorded. Patient median age was 67 years (range, 60-73 years). All patients had symptoms concerning trigeminal neuralgia with 2 having associated areas of facial numbness. The anterior transpetrosal approach was used to achieve complete resection (Simpson grade I). Postresection, the trigeminal nerve and brainstem were clearly visible to evaluate neurovascular structures and ensure decompression. No postoperative complications were reported, and all patients experienced sustained symptomatic relief 1 month postsurgery. With the advent of radiosurgery for skull base meningiomas, surgical resection is not always considered; however, such meningiomas causing trigeminal neuralgia can be resected safely using the anterior transpetrosal approach allowing rapid resolution of symptoms. This review of operative nuances provides aguide for neurosurgeons to provide safe surgical resection.
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