Table III.
Variability of Motor Responses to Dorsal and Ventral STN DBS
| D-STN DBS vs OFF
|
V-STN DBS vs OFF
|
|||
|---|---|---|---|---|
| Mean Percent Change | Number (Percent) of Patients Improved | Mean percent Change | Number (Percent) of Patients Improved | |
| UPDRS-IIIa | −6.5 | 25 (83%) | −6.5 | 24 (80%) |
| Mini-BESTesta | 0.5 | 14 (50%) | 1 | 16 (57%) |
| Gait velocity | 19 | 19 (63%) | 16 | 15 (50%) |
| Gait stride length | 16 | 22 (73%) | 16 | 17 (57%) |
| Gait cadence | 2 | 15 (50%) | 0 | 11 (37%) |
Note. Improvements are defined as negative changes in UPDRS score and by positive changes in all other variables.
a
Median change in score is reported instead of mean percent change