Objective: To evaluate the outcome of microelectrode-guided posteroventral pallidotomy (PVP) for L-dopa induced dyskinesia in patients with Parkinson's disease.
Methods: Thirty-six patients with dyskinesia were evaluated with unified Parkinson's disease rating scale (UPDRS) before and after operation. Duration and disability of dyskinesia were analyzed respectively.
Results: The total surgical improvement for dyskinesia was 76.2%. Duration improvement was 88.8% and disability 79.7%. Significant change (P < 0.05) happened postoperatively. Seventeen patients were followed up for 3 months. The result showed a stable improvement for dyskinesia.
Conclusions: L-dopa induced dyskinesia may disappear or be improved after PVP. Surgical treatment promises a maximum L-dopa therapy without any severe pharmaceutical complications. Synergic treatment of drug and surgery are a new strategy for Parkinson's disease.