Deep Brain Stimulation of Caudal Zona Incerta and Subthalamic Nucleus in Patients with Parkinson's Disease: Effects on Diadochokinetic Rate

Table 1

Characteristics of patients in the two surgical groups. Mean age as well as median unified Parkinson’s disease rating scale smotor scores, UPDRS-III, (with standard deviations) are provided. There were no statistical differences between the groups for age, duration since diagnosis, or any of the UPDRS-III scores.

Characteristic	STN group (𝑛=7)	cZI group (𝑛=7)
Age (y)	62.2 ± 8.2 (51–72)	61.9 ± 9.0 (49–71)
Gender	5 M, 2 F	5 M, 2 F
Electrode placement	5 bilatera l,2 unilateral (left side)	7 bilateral
Duration since diagnosis	6.4 ± 1.5 (4–8)	5.6 ± 2.5 (2–10)
UPDRS III Off medication	39.0 (32–57)	31.0 (29–50)
UPDRS-III On medication	18.0 (6–36)	16.0 (10–42)
Speech* (UPDRS III Item 18) Off med	1.0 (0–2)	1.0 (0–2)
Speech (UPDRS III Item 18) On med	0.0 (0-1)	0.7 ± 0.5 (0–1)