[Neurosurgical methods in Parkinson disease].

Advances in modern drug therapy of Parkinson's disease (PD) have displaced the surgical treatment of illness to second place. Beyond question, the modern medicinal treatment is the therapy of first choice for PD. However, at the same time it should not be forgotten that the stereotactic methods have a high therapeutic potential and should always be used for treating PD whenever medicinal therapy is unsuccessful or is not tolerated. For tremor this is sometimes the case. Neurostimulation, currently the most important neurosurgical treatment, involves a reversible, nonlesional procedure through which tremor can be successfully brought under control in 88% of the cases. Moreover, even the remaining PD symptoms can be targeted and successfully treated by neurostimulation.