Table 2.
Demographics and stimulator settings
| Category | Satistics | |
|---|---|---|
| Demographics | ||
| Gender | ||
| Males | 19 (61.3%) | |
| Females | 12 (39.7%) | |
| Age at time of surgery (years) | 61 ± 10 | |
| Disease duration at time of surgery (years) | 14 ± 8 | |
| Statistics at time of study | ||
| Interval between surgery and study (days) | 376 ± 355 | |
| Laterality of symptoms based on mean rigidity and bradykinesia scores | ||
| Left | 2.10 ± 0.03 | |
| Right | 2.16 ± 0.04 | |
| Mean UPDRS | ||
| Med OFF-stim OFF | 42.1 ± 13.7 | |
| Med OFF-stim ON | 19.6 ± 9.1 | |
| Improvement | 53.3776% | |
| H&Y Med OFF-DBS OFF | ||
| 2 | 3 (9.7%) | |
| 2.5 | 4 (12.9%) | |
| 3 | 5 (16.13%) | |
| 4 | 11 (35.48%) | |
| 5 | 8 (25.81%) | |
| Mean levodopa equivalent doses | ||
| Before surgery | 1280 ± 757 | |
| After surgery | 795 ± 574 | |
| Reduction | 38% |
| Stimulation | Left | Right |
|---|---|---|
| Voltage | 3.06 ± 0.50 | 3.14 ± 0.60 |
| Pulse width | 65.7 ± 11.7 | 67.0 ± 12.9 |
| Impedance | 1037.5 ± 176.4 | 1076.3 ± 176.4 |
| Rate | 185 | 185 |
| Active contact | 27 monopolar 4 bipolar | 27 monopolar 4 bipolar |
The levodopa equivalent dose is calculated as 100 mg of levodopa equivalent to 125 mg of controlled-release levodopa, 1 mg of pergolide, 1.5 mg of pramipexole, 5 mg of ropinirole or 10 mg of bromocriptine (Kleiner-Fisman et al. 2003).