TY - JOUR
T1 - Repetitive transcranial magnetic stimulation for obsessive-compulsive disorder
T2 - a systematic review and pairwise/network meta-analysis
AU - Fitzsimmons, Sophie M. D. D.
AU - van der Werf, Ysbrand D.
AU - van Campen, A. Dilene
AU - Arns, Martijn
AU - Sack, Alexander T.
AU - Hoogendoorn, Adriaan W.
AU - Consortium, Tetro
AU - van den Heuvel, Odile A.
N1 - Copyright © 2022. Published by Elsevier B.V.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - BACKGROUND: We evaluated the efficacy and safety of repetitive transcranial magnetic stimulation (rTMS) for obsessive-compulsive disorder (OCD), and ranked the relative efficacy of different stimulation protocols.METHODS: We performed a search for randomised, sham-controlled trials of rTMS for OCD. The primary analysis included both a pairwise meta-analysis and a series of frequentist network meta-analyses (NMA) of OCD symptom severity. Secondary analyses were carried out on relevant clinical factors and safety.RESULTS: 21 studies involving 662 patients were included. The pairwise meta-analysis showed that rTMS for OCD is efficacious across all protocols (Hedges' g=-0.502 [95%CI= -0.708, -0.296]). The first NMA, with stimulation protocols clustered only by anatomical location, showed that both dorsolateral prefrontal cortex (dlPFC) stimulation and medial frontal cortex stimulation were efficacious. In the second NMA, considering each unique combination of frequency and location separately, low frequency (LF) pre-supplementary motor area (preSMA) stimulation, high frequency (HF) bilateral dlPFC stimulation, and LF right dlPFC stimulation were all efficacious . LF right dlPFC was ranked highest in terms of efficacy, although the corresponding confidence intervals overlapped with the other two protocols.LIMITATIONS: Evidence base included mostly small studies, with only a few studies using similar protocols, giving a sparse network. Studies were heterogeneous, and a risk of publication bias was found.CONCLUSIONS: rTMS for OCD was efficacious compared with sham stimulation. LF right dlPFC, HF bilateral dlPFC and LF preSMA stimulation were all efficacious protocols with significant and comparable clinical improvements. Future studies should further investigate the relative merits of these three protocols.
AB - BACKGROUND: We evaluated the efficacy and safety of repetitive transcranial magnetic stimulation (rTMS) for obsessive-compulsive disorder (OCD), and ranked the relative efficacy of different stimulation protocols.METHODS: We performed a search for randomised, sham-controlled trials of rTMS for OCD. The primary analysis included both a pairwise meta-analysis and a series of frequentist network meta-analyses (NMA) of OCD symptom severity. Secondary analyses were carried out on relevant clinical factors and safety.RESULTS: 21 studies involving 662 patients were included. The pairwise meta-analysis showed that rTMS for OCD is efficacious across all protocols (Hedges' g=-0.502 [95%CI= -0.708, -0.296]). The first NMA, with stimulation protocols clustered only by anatomical location, showed that both dorsolateral prefrontal cortex (dlPFC) stimulation and medial frontal cortex stimulation were efficacious. In the second NMA, considering each unique combination of frequency and location separately, low frequency (LF) pre-supplementary motor area (preSMA) stimulation, high frequency (HF) bilateral dlPFC stimulation, and LF right dlPFC stimulation were all efficacious . LF right dlPFC was ranked highest in terms of efficacy, although the corresponding confidence intervals overlapped with the other two protocols.LIMITATIONS: Evidence base included mostly small studies, with only a few studies using similar protocols, giving a sparse network. Studies were heterogeneous, and a risk of publication bias was found.CONCLUSIONS: rTMS for OCD was efficacious compared with sham stimulation. LF right dlPFC, HF bilateral dlPFC and LF preSMA stimulation were all efficacious protocols with significant and comparable clinical improvements. Future studies should further investigate the relative merits of these three protocols.
KW - DESIGN
KW - DOUBLE-BLIND
KW - IMPACT
KW - IMPROVED SYMPTOMS
KW - MULTICENTER
KW - Network meta -analysis
KW - OCD
KW - Obsessive-compulsive disorder
KW - QUALITY
KW - RANDOMIZED CLINICAL-TRIAL
KW - RTMS
KW - Repetitive transcranial magnetic stimulation
KW - SHAM-CONTROLLED TRIAL
U2 - 10.1016/j.jad.2022.01.048
DO - 10.1016/j.jad.2022.01.048
M3 - (Systematic) Review article
C2 - 35041869
SN - 0165-0327
VL - 302
SP - 302
EP - 312
JO - Journal of Affective Disorders
JF - Journal of Affective Disorders
ER -