Deep brain stimulation for treatment-refractory obsessive compulsive disorder: a systematic review

BMC Psychiatry

Table 4 Trials targeting the STN region

STN
Reference	Responders (ratio)	Follow-up	Patients included elsewhere	Y-BOCS Reduction
Mallet, 2002 [43]	2/2	6 months		82.7%
Fontaine, 2004 [44]	1/1	6 months		96.8%
Mallet, 2008 [45]	7/16	3 months		37.8%
Chabardès, 2012* [46]	2/4	6 months	two patients from Mallet et al. [45]	53.4%
Barcia, 2013 [37]	2/2	3 months		42.5%
Mean	57.1%			45.3%

STN: Subthalamic nucleus. Responders’ ratio: responders defined as 35% improvement in Y-BOCS score or more. Follow-up: latest follow-up reported. Patients included elsewhere: Number of patients of which the data has been reported before and corresponding publication. Y-BOCS reduction: mean reduction for new patients at latest follow-up or reduction range if individual data not available. *Data not included in pooled means due to duplicated data.

ISSN: 1471-244X