Subthalamic Nucleus Deep Brain Stimulation Improves Sleep in Parkinson’s Disease Patients: a retrospective study and a meta-analysis

Abstract Background Most Parkinson’s patients suffered from sleep problems. There is increasing evidence that Subthalamic Nucleus Deep Brain Stimulation (STN-DBS) has a positive effect on several sleep parameters, improving overall sleep quality in patients with PD. However, the results are controversial. Methods We performed a retrospective study and meta-analysis to assess the Parkinson’s disease sleep scale (PDSS) in Parkinson’s patients. Results We reviewed our data of patients who underwent STN-DBS, and then extracted five other trials to perform a meta-analysis. The pooled results showed an advantage on post-operative PDSS in both our medical center and pooled results (MD=20.41, 95% CI=[13.03, 27.79], I2=61%, p Conclusion In the retrospective study and meta-analysis of 6 trials, we found that DBS can significantly increase sleep quality. Furthermore, motor function improved and Parkinsonian medication was significantly decreased postoperatively. The sample size was enough and no further investigations would change the conclusion.