Subthalamic Nucleus Deep Brain Stimulation for Parkinson Disease in Hong Kong: A Prospective Territory-Wide 2-Year Follow-Up Study.

Objective: We assessed the effects of bilateral subthalamic nucleus (STN) deep brain stimulation (DBS) in patients with Parkinson disease at the 1-year and 2-year follow-up evaluations. Unified Parkinson's Disease Rating Scale (UPDRS) motor score at "off" medication ("on" DBS) and quality-of-life assessments (39-item Parkinson's Disease Questionnaire [PDQ-39]) were conducted. The percentage of awake "on" time and awake "off" time and levodopa requirement were also assessed.

The mini-BESTest can predict parkinsonian recurrent fallers: a 6-month prospective study.

Objectives: To examine whether the Mini-Balance Evaluation Systems Test (Mini-BESTest) independently predicts recurrent falls in people with Parkinson's disease.

Design: The study used a longitudinal cohort design.

Subjects: A total of 110 patients with Parkinson's disease completed the study and were included in the final analysis.

Deep brain stimulation in a Chinese Tourette's syndrome patient.

A 31-year-old Chinese man with intractable severe, lifelong Tourette's syndrome characterised by forceful self-injurious motor tics and socially embarrassing vocal tics was treated with bilateral deep brain stimulation. Electrodes were implanted into the thalamic targets at the centromedian-parafascicular complex according to Hassler's nomenclature. A dramatic reduction of tics resulted.