title: [A proposed new target for deep brain stimulation in obsessive-compulsive disorder].
abstract: BACKGROUND
  The obsessive-compulsive disorder (OCD) has an incidence in general population of 1.5-3%. If we consider as a positive respond a diminution of the 25-35% in the symptoms of OCD according to the Y-BOCS, and we add the cognitive-behavioral therapy to the pharmacological treatment, only a 40-60% of treated patients would have significant improvement and a 10% of patients with OCD, would be refractory to all type of medical treatment.
  
  
  METHODS
  Current neurosurgical techniques for resistant cases of OCD interrupt the connections between the frontal lobes and subcortical structures (cingulotomy, capsulotomy). These techniques are ablative and irreversible. It shows the importance of finding a less aggressive technique with better clinical results. Deep brain stimulation (DBS) is an alternative to traditional neurosurgery based in neuromodulation methods. It's considered that the physiopathology of the OCD consists of a dysfunction of the direct and indirect vias that control the extrapiramidal limbic circuit. On the other hand, it had been obtained positive results after DBS of the subthalamic nucleus of three patients with Parkinson's disease and OCD.
  
  
  CONCLUSIONS
  This article has as target the demonstration that bilateral DBS of the limbic part of the subthalamic nucleus is an alternative for the treatment of refractory OCD.
authors.affiliation: Servicio de Psiquiatría, Area VIII, Hospital Universitario Central de Asturias, Oviedo, Spain.
authors.forename: E
authors.initials: E
authors.lastname: Seijo-Zazo
authors.forename: F
authors.initials: F
authors.lastname: Seijo-Fernández
authors.forename: F
authors.initials: F
authors.lastname: Fernández-González
authors.forename: M A
authors.initials: MA
authors.lastname: Alvarez-Vega
authors.forename: B
authors.initials: B
authors.lastname: Lozano-Aragoneses
mesh_terms: D046690:Deep Brain Stimulation; D006801:Humans; D008962:Models, Theoretical; D009771:Obsessive-Compulsive Disorder / Q000453:epidemiology / Q000503:physiopathology / Q000628:therapy*