Introduced in 1992, and first published with report of 3 cases in 1994, the ventroposterolateral electrostimulation of the pallidum raised exciting prospects. The follow-up of this new approach will be presented in 19 cases with at least 6 months control, and up to 42 months. The very favorable effects observed in the first series could be confirmed and extended to a larger group of patients during a longer period.