The use of stereotactically guided radiation for the treatment of trigeminal neuralgia. Stereotactic describes a method in neurosurgery and neurological research for locating points within the brain using an external, three-dimensional frame of reference usually based on a map/atlas (defined coordinate system).
Stereotactic radiosurgery is performed as an outpatient procedure. The procedure is noninvasive and there is a low complication rate. Magnetic resonance imaging is used to identify the trigeminal nerve. A single radiation beam is aimed at the appropriate target. Over a period of time and as a result of exposure to the radiation the slow formation of a lesion in the nerve interrupts transmission of pain signals to the brain.
An increase in facial skin sensation, such as burning, prickling, itching, or tingling, with no apparent physical cause and a decrease in sensation.
Risk of Radiosurgery
Delayed pain relief.