Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials

Obsessive-compulsive disorder (OCD) is a neuropsychiatric disorder, with 30–40% of OCD patients being unresponsive to adequate trials of anti-OCD drugs and cognitive behavior therapy. The aim of this paper is to investigate the efficacy of non-invasive brain stimulation (NIBS) on treating refractory...

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Main Authors: Shu Zhou, Yan Fang
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Brain Sciences
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Online Access:https://www.mdpi.com/2076-3425/12/7/943
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author Shu Zhou
Yan Fang
author_facet Shu Zhou
Yan Fang
author_sort Shu Zhou
collection DOAJ
description Obsessive-compulsive disorder (OCD) is a neuropsychiatric disorder, with 30–40% of OCD patients being unresponsive to adequate trials of anti-OCD drugs and cognitive behavior therapy. The aim of this paper is to investigate the efficacy of non-invasive brain stimulation (NIBS) on treating refractory OCD. With PubMed, Embase, PsycInfo, and Cochrane Library used on 15 February 2022, 24 randomized controlled trials involving 663 patients were included. According to this analysis, NIBS including repetitive transcranial magnetic stimulation (rTMS), theta-burst stimulation (TBS), and transcranial direct current stimulation (tDCS), had a moderate effect on the reduction of Yale-Brown Obsessive Compulsive Scale (Y-BOCS) scores (SMD = 0.54, 95% CI: 0.26–0.81; <i>p</i> < 0.01). In the subgroup analysis, rTMS seemed to produce a better therapeutic effect (SMD = 0.73, 95% CI: 0.38–1.08; <i>p</i> < 0.01). Moreover, excitatory (SMD = 1.13, 95% CI: 0.24–2.01; <i>p</i> = 0.01) and inhibitory (SMD = 0.81, 95% CI: 0.26–1.36; <i>p</i> < 0.01) stimulation of the dorsolateral prefrontal cortex (DLPFC) both alleviated OCD symptoms. In the secondary outcome of clinical response rates, NIBS treatment led to an increase in response rates (RR = 2.26, 95% CI: 1.57–3.25; <i>p</i> < 0.01).
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spelling doaj.art-fdd63e6a7127488096ed9eaf8c5bc2432023-11-30T22:54:19ZengMDPI AGBrain Sciences2076-34252022-07-0112794310.3390/brainsci12070943Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled TrialsShu Zhou0Yan Fang1The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, ChinaDepartment of Physiology, Zhejiang Chinese Medical University, Hangzhou 310053, ChinaObsessive-compulsive disorder (OCD) is a neuropsychiatric disorder, with 30–40% of OCD patients being unresponsive to adequate trials of anti-OCD drugs and cognitive behavior therapy. The aim of this paper is to investigate the efficacy of non-invasive brain stimulation (NIBS) on treating refractory OCD. With PubMed, Embase, PsycInfo, and Cochrane Library used on 15 February 2022, 24 randomized controlled trials involving 663 patients were included. According to this analysis, NIBS including repetitive transcranial magnetic stimulation (rTMS), theta-burst stimulation (TBS), and transcranial direct current stimulation (tDCS), had a moderate effect on the reduction of Yale-Brown Obsessive Compulsive Scale (Y-BOCS) scores (SMD = 0.54, 95% CI: 0.26–0.81; <i>p</i> < 0.01). In the subgroup analysis, rTMS seemed to produce a better therapeutic effect (SMD = 0.73, 95% CI: 0.38–1.08; <i>p</i> < 0.01). Moreover, excitatory (SMD = 1.13, 95% CI: 0.24–2.01; <i>p</i> = 0.01) and inhibitory (SMD = 0.81, 95% CI: 0.26–1.36; <i>p</i> < 0.01) stimulation of the dorsolateral prefrontal cortex (DLPFC) both alleviated OCD symptoms. In the secondary outcome of clinical response rates, NIBS treatment led to an increase in response rates (RR = 2.26, 95% CI: 1.57–3.25; <i>p</i> < 0.01).https://www.mdpi.com/2076-3425/12/7/943refractory obsessive-compulsive disordernon-invasive brain stimulationrepetitive transcranial magnetic stimulationtheta-burst stimulationtranscranial direct current stimulationmeta-analysis
spellingShingle Shu Zhou
Yan Fang
Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials
Brain Sciences
refractory obsessive-compulsive disorder
non-invasive brain stimulation
repetitive transcranial magnetic stimulation
theta-burst stimulation
transcranial direct current stimulation
meta-analysis
title Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials
title_full Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials
title_fullStr Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials
title_full_unstemmed Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials
title_short Efficacy of Non-Invasive Brain Stimulation for Refractory Obsessive-Compulsive Disorder: A Meta-Analysis of Randomized Controlled Trials
title_sort efficacy of non invasive brain stimulation for refractory obsessive compulsive disorder a meta analysis of randomized controlled trials
topic refractory obsessive-compulsive disorder
non-invasive brain stimulation
repetitive transcranial magnetic stimulation
theta-burst stimulation
transcranial direct current stimulation
meta-analysis
url https://www.mdpi.com/2076-3425/12/7/943
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