Multicenter Experience of Mixed Deep Brain Stimulation Implants for Movement Disorders

Objectives: Current-controlled (CC) DBS devices have been recently approved for replacement of depleted voltage-controlled (CV) IPGs. New IPGs can be connected to previously implanted electrodes and extensions by the same or by different manufacturer through the use of an adaptor. In our series, leads, extensions and CC IPGs were by different manufactures, so such hybrid systems are referred as “mixed implant”. The aim of this retrospective data collection is to evaluate the safety and efficacy of CC stimulation in patients with previous CV long-lasting stimulation.