Effect of stereotactic high-frequency stimulation in the anterior lobe of the cerebellum in cerebral palsy: a new suboccipital approach.

The direct stereotactic suboccipital approach to the anterior lobe of the cerebellum was applied for deep high-frequency stimulation in three patients (for 29, 8 and 3 months) suffering from cerebral palsy. In agreement with our previous experience with a transtentorial approach in 30 patients, spasticity, dyskinesias and behavior were improved during chronic intermittent stimulation (frequency 185 Hz, pulse width 210 micros, voltage individually altered according to motor response at 0.5-4.0 V, 15 min on, 2-6 h off). Patients attained useful motor skill improvements. The results indicate that the method is safe, effective and reasonable.