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[Obsessive compulsive disorder and deep brain stimulation, a future so close].

João Flores Alves Dos Santos1, Paul Krack2,3, Shahan Momjian4

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Obsessive compulsive disorder (OCD) affects 2-3% of people, with deep brain stimulation (DBS) showing promise for treatment-resistant cases. Further research is needed to confirm efficacy and quality-of-life benefits in larger patient groups.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Neurosurgery

Background:

  • Obsessive compulsive disorder (OCD) is a prevalent psychiatric disorder affecting 2-3% of the population.
  • A significant portion (approximately 1/3) of OCD patients exhibit treatment resistance, leading to chronic distress and sociofunctional impairment.
  • Dysfunctional neural networks are implicated in OCD pathophysiology, suggesting potential targets for novel interventions.

Purpose of the Study:

  • To discuss the clinical outcomes of subthalamic nucleus deep brain stimulation (DBS) for obsessive compulsive disorder (OCD).
  • To explore the role of the subthalamic nucleus in the underlying pathophysiology of OCD.
  • To highlight the need for further validation of these findings in larger patient cohorts.

Main Methods:

  • Review of clinical results from subthalamic nucleus deep brain stimulation (DBS) studies in OCD patients.
  • Analysis of the subthalamic nucleus's involvement in the neurobiological mechanisms of OCD.

Main Results:

  • Subthalamic nucleus DBS has demonstrated clinical efficacy in select OCD patients.
  • The subthalamic nucleus appears to be a key component of the neural circuitry involved in OCD.

Conclusions:

  • Deep brain stimulation targeting the subthalamic nucleus presents a potential therapeutic option for treatment-resistant OCD.
  • Larger-scale studies are crucial to confirm these preliminary findings and assess the impact on patients' quality of life.