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The effects of deep-brain non-stimulation in severe obsessive-compulsive disorder: an individual patient data meta-analysis.


ABSTRACT: Non-intervention-related effects have long been recognized in an array of medical interventions, to which surgical procedures like deep-brain stimulation are no exception. While the existence of placebo and micro-lesion effects has been convincingly demonstrated in DBS for major depression and Parkinson's disease, systematic investigations for obsessive-compulsive disorder (OCD) are currently lacking. We therefore undertook an individual patient data meta-analysis with the aim of quantifying the effect of DBS for severe, treatment-resistant OCD that is not due to the electrical stimulation of brain tissue. The MEDLINE/PubMed database was searched for double-blind, sham-controlled randomized clinical trials published in English between 1998 and 2018. Individual patient data was obtained from the original authors and combined in a meta-analysis. We assessed differences from baseline in obsessive-compulsive symptoms following sham treatment, as measured by the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS). Four studies met the inclusion criteria, randomizing 49 patients to two periods of active or sham stimulation. To preclude confounding by period effects, our estimate was based only on data from those patients who underwent sham stimulation first (n?=?24). We found that sham stimulation induced a significant change in the Y-BOCS score (t?=?-3.15, P?

SUBMITTER: Schruers K 

PROVIDER: S-EPMC6683131 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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The effects of deep-brain non-stimulation in severe obsessive-compulsive disorder: an individual patient data meta-analysis.

Schruers Koen K   Baldi Samantha S   van den Heuvel Tijl T   Goossens Liesbet L   Luyten Laura L   Leentjens Albert F G AFG   Ackermans Linda L   Temel Yasin Y   Viechtbauer Wolfgang W  

Translational psychiatry 20190805 1


Non-intervention-related effects have long been recognized in an array of medical interventions, to which surgical procedures like deep-brain stimulation are no exception. While the existence of placebo and micro-lesion effects has been convincingly demonstrated in DBS for major depression and Parkinson's disease, systematic investigations for obsessive-compulsive disorder (OCD) are currently lacking. We therefore undertook an individual patient data meta-analysis with the aim of quantifying the  ...[more]

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