Evidence map›Paper›PMID 37635781›Full record

ArticleMovement disorders clinical practice2023

The Role of Levodopa Challenge in Predicting the Outcome of Subthalamic Deep Brain Stimulation.

Robin Wolke, Jos Steffen Becktepe, Steffen Paschen, Ann-Kristin Helmers, Dorothee Kübler-Weller, Jinyoung Youn, Dana Brinker, Hagai Bergman, Andrea A Kühn, Alfonso Fasano and 1 more

Abstract read
In one paragraph

Article in Movement disorders clinical practice, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–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

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Linking Invasive and Noninvasive Brain Stimulation in Parkinson's Disease: A Randomized Trial.Movement disorders : official journal of the Movement Disorder Society · 2024
    Trial
  3. Article
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  8. Review
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  10. Article
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  12. Preoperative network activity predicts the response to subthalamic DBS for Parkinson's disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Are there Predictors for the Effects of Subthalamic Versus Thalamic Lesions for the Treatment of Parkinsonian Tremor?Movement disorders : official journal of the Movement Disorder Society · 2025
    Article
  18. Article
  19. Review
  20. 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.

Robin WolkeDepartment of Neurology UKSH, Christian-Albrechts University Kiel Kiel Germany.
Jos Steffen BecktepeDepartment of Neurology UKSH, Christian-Albrechts University Kiel Kiel Germany.ORCID https://orcid.org/0000-0002-3532-3155
Steffen PaschenDepartment of Neurology UKSH, Christian-Albrechts University Kiel Kiel Germany.ORCID https://orcid.org/0000-0002-9306-8332
Ann-Kristin HelmersDepartment of Neurosurgery UKSH, Christian-Albrechts University Kiel Kiel Germany.
Dorothee Kübler-WellerMovement Disorder and Neuromodulation Unit, Department of Neurology Charité-Universitätsmedizin Berlin Germany.ORCID https://orcid.org/0000-0001-5097-0281
Jinyoung YounDepartment of Neurology, Samsung Medical Center School of medicine Sungkyunkwan University Seoul South Korea.
Dana BrinkerDepartment of Neurology UKSH, Christian-Albrechts University Kiel Kiel Germany.
Hagai BergmanThe Edmond andLily Safra Center for Brain Sciences (ELSC) The Hebrew University Jerusalem Israel.
Andrea A KühnMovement Disorder and Neuromodulation Unit, Department of Neurology Charité-Universitätsmedizin Berlin Germany.
Alfonso FasanoEdmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic Toronto Western Hospital, UHN Toronto Ontario Canada.ORCID https://orcid.org/0000-0001-5346-0180
Günther DeuschlDepartment of Neurology UKSH, Christian-Albrechts University Kiel Kiel Germany.ORCID https://orcid.org/0000-0002-4176-9196

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Deep brain stimulation of the subthalamic nucleus (STN-DBS) is an effective and evidence-based treatment for idiopathic Parkinson's disease (iPD). A minority of patients does not sufficiently benefit from STN-DBS. Objective: The predictive validity of the levodopa challenge for individual patients is analyzed. Methods: Data from patients assessed with a preoperative Levodopa-test and a follow-up examination (mean ± standard deviation: 9.15 months ±3.39) from Kiel (n = 253), Berlin (n = 78) and Toronto (n = 98) were studied. Insufficient DBS outcome was defined as an overall UPDRS-III reduction <33% compared to UPDRS-III in med-off at baseline or alternatively if the minimal clinically important improvement of 5 points was not reached. Single UPDRS-items and sub-scores were dichotomized. Following exploratory analysis, we trained supervised regression- and classification models for outcome prediction. Results: Data analysis confirmed significant correlation between the absolute UPDRS-III reduction during Levodopa challenge and after stimulation. But individual improvement was inaccurately predicted with a large range of up to 30 UPDRS III points. Further analysis identified preoperative UPDRS-III/med-off-scores and preoperative Levodopa-improvement as most influential factors. The models for UPDRS-III and sub-scores improvement achieved comparably low accuracy. Conclusions: With large prediction intervals, the Levodopa challenge use for patient counseling is limited, though remains important for excluding non-responders to Levodopa. Despite these deficiencies, the current practice of patient selection is highly successful and builds not only on the Levodopa challenge. However, more specific motor tasks and further paraclinical tools for prediction need to be developed.

Indexed as

deep brain stimulationlevodopa challengeParkinson'spredictionstimulationsubthalamic

Identifiers

PMID37635781
PMCPMC10450242

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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.