title: Current status of deep brain stimulation for obsessive-compulsive disorder: a clinical review of different targets.
abstract: Obsessive-compulsive disorder (OCD) is a chronic psychiatric disorder that affects 2% of the general population. Despite optimal cognitive-behavioral and pharmacologic therapy, approximately 10% of patients remain treatment resistant. Currently, deep brain stimulation (DBS) is being investigated as an experimental therapy for treatment-refractory OCD. This review focuses on the efficacy and adverse events of all published DBS targets for OCD: anterior limb of the internal capsule, ventral striatum/ventral capsule, nucleus accumbens, nucleus subthalamicus, and inferior thalamic peduncle. Small studies with various designs indicate an overall average Yale-Brown Obsessive Compulsive Scale score decrease ranging from 6.8 to 31 points. The average overall responder rate is ±50%. The frequency of adverse events seems to be limited. Larger prospective studies including neuroimaging are needed to estimate adequately the true potential of DBS in treatment of OCD and to elucidate its underlying mechanism of action and optimal brain target. We conclude that DBS may be a promising and safe therapy for treatment-resistant OCD.
authors.affiliation: Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. p.p.dekoning@amc.uva.nl
authors.forename: Pelle P
authors.initials: PP
authors.lastname: de Koning
authors.forename: Martijn
authors.initials: M
authors.lastname: Figee
authors.forename: Pepijn
authors.initials: P
authors.lastname: van den Munckhof
authors.forename: P Richard
authors.initials: PR
authors.lastname: Schuurman
authors.forename: Damiaan
authors.initials: D
authors.lastname: Denys
mesh_terms: D001479:Basal Ganglia / Q000503:physiopathology; D046690:Deep Brain Stimulation / Q000009:adverse effects; D006801:Humans; D020772:Internal Capsule / Q000503:physiopathology; D009714:Nucleus Accumbens / Q000503:physiopathology; D009771:Obsessive-Compulsive Disorder / Q000503:physiopathology / Q000628:therapy*; D020531:Subthalamic Nucleus / Q000503:physiopathology; D016896:Treatment Outcome