Evidence map›Paper›PMID 40041698›Full record

SynthesisFrontiers in psychiatry2025

Tourette syndrome and brain stimulation therapy: a systematic review and meta-analysis of current evidence.

Alwaleed K Aloufi, Jalal A Zahhar, Mahmoud W Bader, Maher B Almutairi, Abdulqader Alaaldeen, Omar E Hetta, Abdulaziz M Gammash, Saleh Almuntashiri, Ibrahim S Binrabaa, Ahmad Alsaleh and 1 more

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Tourette syndrome.Nature reviews. Disease primers · 2026
    Review
  2. Update on the Pathophysiology and Management of Tics.Current neurology and neuroscience reports · 2026
    Review
  3. Advancing psychiatric care through neuromodulation: From translational research to clinical practice.Dusunen adam : Bakirkoy Ruh ve Sinir Hastaliklari Hastanesi yayin organi · 2026
    Article
  4. Review
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Alwaleed K AloufiCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Jalal A ZahharCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Mahmoud W BaderCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Maher B AlmutairiCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Abdulqader AlaaldeenCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Omar E HettaCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Abdulaziz M GammashCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Saleh AlmuntashiriCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Ibrahim S BinrabaaCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Ahmad AlsalehCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Moayyad AlSalemCollege of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Tourette syndrome (TS) is a neurological disorder characterized by tics, often associated with obsessive-compulsive disorder (OCD). Severe cases may require interventions such as deep brain stimulation (DBS) or repetitive transcranial magnetic stimulation (rTMS). Methods: A thorough search was performed across PubMed/Medline, Embase, (CENTRAL), and Google Scholar. Studies comparing DBS and rTMS efficacy for TS were included if they reported YGTSS before and after treatment. Two independent reviewers screened the search results, extracted data, and assessed study quality using standardized tools. Results: 22 studies met the inclusion criteria, with a total of 222 participants. Analysis of RCTs investigating post-intervention rTMS vs baseline showed a statistically insignificant decrease in YGTSS (MD = -5.01, 95% CI: [-10.8, 0.79], P= 0.090) but a statistically significant decrease in YBOCS (MD = -6.6; 95% CI: [-11.64, -1.55], P= 0.010). However, post-intervention rTMS in RCT and non-randomized trials vs baseline showed a significant decrease in YGTSS (MD = -11.6; 95% CI: [-18.25, -4.94], P < 0.001) and YBOCS (MD = -7.5; 95% CI: [-11.85, -3.15], P < 0.001). Post-intervention DBS in RCT and non-RCTs vs baseline showed a significant decrease in YGTSS (MD = -18.29; 95% CI: [-24.93, -11.64], P < 0.001) and YBOCS (MD = -4.76; 95% CI: [-7.30, -2.21], P < 0.001). Analysis of RCTs investigating Post-intervention DBS vs baseline showed a significant decrease in YGTSS (MD = -14.71; 95% CI: [-19.78, -9.63], P <0.001) and YBOCS (MD = -5.04; 95% CI: [-8.28, -1.80], P = 0.002). Conclusion: Our analysis revealed both DBS and rTMS improved TS and OCD symptoms, however the effect of rTMS on TS in RCTs was insignificant, suggesting DBS stimulation is more effective. Despite this, clinicians may still opt for rTMS before DBS due to its less invasive nature, the limited number of high-quality RCTs, and the lack of studies directly comparing rTMS and DBS. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023386856, identifier CRD42023386856.

Indexed as

deep brain stimulationobsessive-compulsive disorderrepetitive transcranial magnetic stimulationTourette SyndromeYale-brown obsessive compulsive scaleYale Global Tic Severity Scale

Identifiers

PMID40041698
PMCPMC11876145

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.