Table 2.
Detailed information about pallidal deep brain stimulation in patients with borderline dystonia.
| Patient 1 | Patient 2 | Patient 3 | Patient 4 | Patient 5 | Mean ± SD | |
|---|---|---|---|---|---|---|
| Follow-up after surgery (months) | 55 | 52 | 36 | 13 | 9 | 33.0 ± 21.4 |
| Implanted devices system | Model 3387 Medtronic Activa SC |
4 contacts leads Abbott Brio |
4 contacts leads Abbott Brio |
Directional leads BS Vercise Gevia |
Directional lead BS Vercise Gevia |
- |
| Stimulation parameters | ||||||
| Electrode right/left | 2+1-/2+1- bipolar |
2+1-/2+1- bipolar |
C+2-/C+2- monopolar |
C+1-2-3-4-/C+1-2-3-4- monopolar |
NA/C+3-4-5-6- monopolar |
- |
| Current (mA) right/left | 1.5/3.1 | 1.1/1.6 | 2.3/1.9 | 4.6/4.6 | -/4.8 | 2.2 ± 1.6/3.2 ± 1.5 |
| Pulse width (μS) right/left | 120/420 | 200/250 | 200/150 | 60/60 | /180 | 110 ± 66.3/194 ± 150.3 |
| Frequency (Hz) right/left | 80/80 | 60/60 | 180/180 | 130/130 | /20 | 100 ± 35.6/84 ± 47.2 |
| BFMDRS-M (max = 120) | ||||||
| Preoperatively | 70 | 68.5 | 59.5 | 51 | 45.5 | 58.9 ± 10.7 |
| Postoperatively | 26 | 0 | 1 | 1 | 21 | 9.8 ± 12.6 |
| Percent improvement (%) | 62.9 | 100 | 98.3 | 98.0 | 53.8 | 82.6 ± 22.4 |
| BFMDRS-D (max = 30) | ||||||
| Preoperatively | 14 | 16 | 13 | 10 | 11 | 12.8 ± 2.4 |
| Postoperatively | 7 | 0 | 0 | 0 | 9 | 3.2 ± 4.4 |
| Percent improvement (%) | 50.0 | 100 | 100 | 100 | 18.2 | 73.6 ± 37.8 |
SD: standard deviation, NA: not available, BS: Boston Scientific co., BFMDRS-M, -D: Burke-Fahn-Marsden Dystonia Rating Scale-motor score, -disability score.