Unilateral extradural motor cortex stimulation is safe and improves Parkinson disease at 1 year.

Background: The primary motor cortex, which is part of the corticobasal ganglia loops, may be an alternative option for the surgical treatment of Parkinson disease.

Objective: To report on the 1-year safety and efficacy of unilateral extradural motor cortex stimulation in Parkinson disease.

Methods: A quadripolar electrode strip was extradurally implanted over the motor cortex.

Chronic motor cortex stimulation in patients with advanced Parkinson's disease and effects on striatal dopaminergic transmission as assessed by 123I-FP-CIT SPECT: a preliminary report.

Objective: The objective of this study was to assess striatal dopamine transporter availability in patients with advanced Parkinson's disease (PD) before and after 13 months of unilateral extradural motor cortex stimulation (EMCS) with [123I]N-ω-fluoropropyl-2-β-carbo-methoxy-3-β-(4-iodophenyl)nortropane single photon emission computed tomography (123I-FP-CIT SPECT).

Methods: Six PD patients (five women and one man, aged 63.2 ± 5.

Effects of stimulation of the subthalamic nucleus on naming and reading nouns and verbs in Parkinson's disease.

Unlabelled: An impairment for verbs has been described in patients with Parkinson's disease (PD), suggesting that a disruption of frontal-subcortical circuits may result in dysfunction of the neural systems involved in action-verb processing. A previous study suggested that deep brain stimulation (DBS) of the subthalamic nucleus (STN) during verb generation may affect the ability to select from many competing lexical alternatives. In this study, 12 PD patients who had undergone bilateral STN DBS and completed an 8-year follow-up and 14 matched normal controls were administered action and object naming tasks and verb and noun reading tasks.