Abstract
Over the years, most of the deep brain stimulation (DBS) complications described have been mainly related to the surgery itself or the stimulation. Only a few authors have dealt with chronic complications or complications due to implanted material. We retrospectively analyzed complications beyond the 1st month after surgery in 249 patients undergoing DBS at our site for 16years, with 321 interventions overall. Our results show that infection is the most frequent delayed complication (12.5%), the pulse generator being the most common location. Lead breaks (9.3%) are the second most frequent complication. Symptomatic peri-lead edema and cyst formation were exceptional. The best knowledge about DBS complications allows for better solutions. In case of infection, conservative treatment or partial removal of the DBS system appears to be safe and reasonable. Intracranial complications related to DBS material such as peri-lead edema and cyst formation have a good prognosis. They may appear long after DBS implantation.
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