Radiosurgical treatment of trigeminal neuralgia: A follow-up experience over three years

To assess the safety and efficacy of radiosurgical treatment for trigeminal neuralgia (TN), we reviewed a total of 32 patients with refractory TN treated with gamma knife radiosurgery (GKRS) and followed-up for over 3 years. A median maximum dose of 80 Gy was delivered to the involved trigeminal nerve root entry zone. Treatment outcomes were assessed based on patients ’ self-reports. A univariate analysis was used to determine the predictors for treatment outcomes. In a median follow-up of 41 months, an improved response to GKRS was observed in 27 patients (84%). Actuarial analysis showed that the 12