Increased variance in second electrode accuracy during deep brain stimulation and its relationship to pneumocephalus, brain shift, and clinical outcomes: A retrospective cohort study

M G Hart; M Posa; P C Buttery; R C Morris

doi:10.1016/j.bas.2022.100893

Increased variance in second electrode accuracy during deep brain stimulation and its relationship to pneumocephalus, brain shift, and clinical outcomes: A retrospective cohort study

Brain Spine. 2022 May 21:2:100893. doi: 10.1016/j.bas.2022.100893. eCollection 2022.

Authors

M G Hart¹, M Posa², P C Buttery³, R C Morris²

Affiliations

¹ St George's University of London, Cranmer Terrace, London, SW17 0RE, UK.
² Department of Neurosurgery, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK.
³ Department of Neurology, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK.

Abstract

•Overall electrode accuracy was 0.22+/-0.4 mm with only 3 (4%) electrodes out with 2 mm from the intended target.•Accuracy was significantly worse in the GPi versus the STN and on the second side implanted.•Inaccuracy occurred in the X (lateral) plane but was not related to pneumocephalus or brain shift.

Keywords: Globus pallidus internus; Magnetic resonance imaging; Parkinson’s disease; Subthalamic nucleus.