Abstract
Background We study the correlation between the preoperative levodopa challenge test and the efficacy of deep brain stimulation (DBS) surgery in Parkinson's disease (PD).
Methods Fifty patients with PD who underwent DBS treatment in our hospital from October 2016 to October 2017 were enrolled in this study. Using the Unified Parkinson Disease Rating Scale-III (UPDRS-III) as an indicator, we analyzed the improvement in motor symptoms on the levodopa challenge test and by DBS surgery. We also discussed the correlation between the effects of the levodopa challenge test and DBS surgery.
Results There was no correlation between the results of the levodopa challenge test and DBS surgery. There was a linear correlation between muscle rigidity and bradykinesia, whereas the linear correlation between other symptoms was weak.
Conclusion The levodopa challenge test can be used as a screening tool for patients undergoing DBS surgery, and can predict the degree of improvement in muscle rigidity and bradykinesia surgery. However, the prediction of the degree of improvement of total motor symptoms is poor.
Keywords
parkinson's disease - acute levodopa challenge test - deep brain stimulation - motor symptoms
