Abstract
The problem of treating patients with atypical trigeminal neuralgia, particularly in the presence of sensory deficits (anesthesia dolorosa) has not been satisfactorily solved. While percutaneous thermocoagulation represents the method of choice for the treatment of idiopathic trigeminal neuralgia it is not effective in cases with atypical trigeminal neuralgia and may even result in a worsening of symptoms. In the present report, a method is described—similar to the technique of percutaneous spinal cord Stimulation with the use of “Pisces” — permitting percutaneous test stimulation of the trigeminal ganglion. This method was used in 10 patients with atypical trigeminal neuralgia. In 3 patients responding satisfactorily to the test stimulation, permanent electrodes were implanted into the trigeminal ganglion and connected to a monopolar receiving unit. Postoperative Observation periods ranged from 6 months to 3.5 years.
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