Evidence map›Paper›PMID 41488691›Full record

SynthesisFrontiers in human neuroscience2025

Effect of deep brain stimulation on motor complications in Parkinson's disease: a systematic review and meta-analysis.

Hu Xu, Xing Wan, Qi Tu, Huahui Chen, Minfeng Tong, Zhijian Xu, Dandan Cai

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in human neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Neuroprotective role ofFrontiers in nutrition · 2026
    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

7 authors.

Hu XuJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.
Xing WanJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.
Qi TuJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.
Huahui ChenJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.
Minfeng TongJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.
Zhijian XuJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.
Dandan CaiJinhua Hospital Affiliated to Zhejiang University (Jinhua Municipal Central Hospital), Zhejiang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Deep brain stimulation (DBS) significantly improves tremor, rigidity, bradykinesia, and dyskinesia for patients with Parkinson's disease (PD), but gait and speech remain inconsistent. These discrepancies underscore the need for a systematic, quantitative synthesis of existing data to clarify the impact of DBS across different motor domains. Objective: To systematically evaluate the effects of DBS on motor symptoms in PD by analyzing UPDRS-III scores and conducting subgroup analyses based on stimulation target, stimulation type, and medication status. Methods: A literature search was conducted to identify relevant studies on clinical trials and observational studies reporting pre- and post-DBS motor assessments in PubMed, Embase, the Cochrane Central Register of Controlled Trials (CENTRAL), Ovid MEDLINE, and Web of Science from inception to 15 December 2024. Results: A total of 35 studies comprising 1,082 PD patients were included. The pooled analysis demonstrated a significant improvement in overall UPDRS-III scores post-DBS (WMD: = -1.09, 95% CI: -1.32 to -0.87, Conclusion: DBS significantly improves overall motor function, particularly tremor, rigidity, and bradykinesia. However, its effects on gait and speech remain inconsistent, which shows the need for further research to refine patient selection and optimize stimulation parameters. These findings provide valuable insights into the therapeutic impact of DBS in PD management.

Indexed as

deep brain stimulationmeta-analysismotor complicationsParkinson’s diseaseUPDRS-III

Identifiers

PMID41488691
PMCPMC12756497

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Registered trials

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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.