Table 2.

Synopsis of papers included in the review targeting structures other than GPi or VIM in patients with different forms of tremor and dystonia

Ref	Author	Year	Patients (n)	Surgical strategy and target	Tremor: improvement	Dystonia: improvement	Notes or clinical details
[29]	Pauls	2014	7	Subthalamic DBS (BL)	57%	70%	Cervical dystonia with head dystonic tremor A trial thalamic vs subthalamic leads was performed
[16]	Buhmann	2013	2	Ventral thalamic base and/or PSA DBS (BL)	64.60%	73.80%	Cervical dystonia with head dystonic tremor
[30]	Blomstedt	2009	2	PSA DBS (UL)	100%	Not reported	Hand dystonic tremor (sporadic and acquired, post-traumatic, respectively)
[33]	Kitagawa	2000	1	Subthalamic area DBS (UL)	Remarkably reduced	Reduced	Upper Limb idiopathic dystonic tremor
[32]	Jeong	2009	1	Subthalamic area DBS (BL)	64.9%	80.50%	Acquired (lesional) dystonia and tremor
[31]	Chou	2005	1	STN DBS (BL)	suppressed	very marked reduction	Limbs and cervical dystonic tremor in sporadic dystonia
[34]	Plaha	2008	1	cZi DBS (BL)	70.50%	65%	Limbs dystonic tremor in sporadic dystonia

BL bilateral, cZi caudal zona incerta, DBS deep brain stimulation, STN subthalamic nucleus, PSA posterior subthalamic area, UL unilateral