Table 1.

Patient characteristics and DBS settings applied following 24 months of chronic ALIC-NA DBS.

#	Gender	Age at surgery	OCD symptoms	Response to DBS (YBOCS change)	DBS contacts and voltage		DBS frequency and pulse width
					Right side	Left side
1	F	33	Con Was Avo Anx	Best (68%)	1− C+, 5.0 V	0− C+, 5.0 V	135 Hz, 210 μs
2	M	52	Dou Avo Che	No (−3%)	1−2− C+, 4.0 V	1−2− C+, 1.5 V	135 Hz, 90 μs
3	M	39	Dou Che	Little (28%)	0−1− C+, 8.0 V	0−1− C+, 8.5 V	135 Hz, 150 μs
4	M	33	Con*	No (5%)	0−1−2− C+, 3.5 V	0−1−2− C+, 3.0 V	60 Hz, 180 μs
5	F	33	Con Avo Anx	Little (33%)	0−1− C+, 3.0 V	0−1− C+, 3.0 V	135 Hz, 210 μs
6	F	27	Con Avo Anx Was Cou	Best (86%)	1− 0+, 3.5 V	1− 0+, 3.3 V	135 Hz, 90 μs

Response to DBS is shown as YBOCS improvement compared to pre-operative assessments. The contacts of the DBS electrode are labeled from 0 to 3 for both sides, where contact 0 is the most ventral contact. A negative value for patient 2 indicates impairment. A negative value for patient 2 indicates impairment. Patient 4 (^*) also suffered from Tourette syndrome as comorbidity. The stimulation frequency of 60 Hz was applied after usage of 135 Hz for 1 year turned out not to be beneficial. Abbreviations: Anx, Anxiety; Avo, Avoiding; C, stimulator case; Che, Checking; Con, contamination obsessions; Cou, Counting; DBS, Deep Brain Stimulation; Dou, Doubts; Was, Washing; YBOCS, Yale-Brown Obsessive Compulsive Scale.