Risk Factors for Postoperative Delirium After Deep Brain Stimulation Surgery for Parkinson Disease
2018
Objective The aim of this study was to investigate the incidence of and risk factors for postoperative delirium (POD) after deep brain stimulation (DBS) surgery in patients with Parkinson disease. Methods We analyzed the preoperative T1-weighted magnetic resonance imaging data of 71 patients with Parkinson disease who underwent DBS surgery. Multiple regression analysis was performed with age, l -dopa equivalent daily dose, laterality of the surgery, target regions, number of electrode trajectories tried, gray matter volume, and white matter (WM) volume as explanatory variables and the duration (number of days) of POD as the response variable. In addition, regional brain atrophy associated with POD was investigated by means of voxel-based morphometry. Results Excluding patients with outliers, 61 patients were included in the analyses. POD had occurred in 26 of the 61 patients (42.6%). Age and total WM volume were shown by multiple regression analysis to correlate significantly with the duration of POD ( P P Conclusions We found that age and WM atrophy in the temporal stem are factors predictive of POD after DBS surgery. In aged patients with temporal stem atrophy, surgical procedures and postoperative management should be carefully explored to reduce the risk of postoperative delirium.
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