Table 1 Detailed study schedule

Screening ICF

X

Pre-op work up^* (CBC, CMP, β-hCG, INR/PTT/PT, U/A, EKG, CXR)

X

X

Neuropsychiatric evaluation (including MDRS and BDI)

X

X

X

X

X

X

X

Columbia Suicide Severity Rating Scale

X

X

X

X

X

X

X

Gait assessment

X

X

X

X

X

X

MDS-UPDRS

X

X

X

X

X

X

FOG Questionnaire

X

X

X

X

X

Timed Up and Go test

X

X

X

X

X

Velocity test

X

X

X

X

X

Variability test

X

X

X

X

X

PDQ-39

X

X

X

X

X

X

PDQL

X

X

X

X

X

X

Brief pain history and NPSI

X

X

X

X

X

X

Surgical ICF

X

MRI

X

Device implantation

X

CT scan

X

EMG analysis

X

X

X

Programming

X

X

X

X

X

Gait kinematics

X

X