Evidence map›Paper›PMID 25904205›Full record

Trial reportJournal of neurology2015

PPNa-DBS for gait and balance disorders in Parkinson's disease: a double-blind, randomised study.

Marie-Laure Welter, Adele Demain, Claire Ewenczyk, Virginie Czernecki, Brian Lau, Amine El Helou, Hayat Belaid, Jérôme Yelnik, Chantal François, Eric Bardinet and 2 more

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Journal of neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 5 pooled it
6.9field-weighted citation impact, top 3% of its field
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

48 citing papers in PubMed, 5 syntheses or guidelines pooled it, 88 citations in OpenAlex.

  1. Pooled it
  2. Interventions for preventing falls in Parkinson's disease.The Cochrane database of systematic reviews · 2022
    Pooled it
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  7. Article
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  12. Review
  13. Unraveling the threads of stability: A review of the neurophysiology of postural control in Parkinson's disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  14. Substantia Nigra Pars Reticulata Projections to the Pedunculopontine Nucleus Modulate Dyskinesia.Movement disorders : official journal of the Movement Disorder Society · 2023
    Article
  15. Review
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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

12 authors at 6 institutions in 1 country.

Marie-Laure WelterU1127, Inserm, 75013, Paris, France, marie-laure.welter@psl.aphp.fr.
Adele Demain
Claire Ewenczyk
Virginie Czernecki
Brian Lau
Amine El Helou
Hayat Belaid
Jérôme Yelnik
Chantal François
Eric Bardinet
Carine Karachi
David Grabli
Sorbonne Université · FRInserm · FRInstitut du Cerveau · FRPitié-Salpêtrière Hospital · FRAssistance Publique – Hôpitaux de Paris · FRInstitut Catholique d'Arts et Métiers · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gait and balance disorders are the major source of motor disabilities in advanced forms of Parkinson's disease (PD). Low-frequency stimulation of the pedunculopontine nucleus area (PPNa-DBS) has been recently proposed to treat these symptoms with variable clinical results. To further understand the effects of PPNa-DBS on resistant gait and balance disorders, we performed a randomised double-blind cross-over study in six PD patients. Evaluation included clinical assessment of parkinsonian disability, quality of life and neurophysiological recordings of gait. Evaluations were done 1 month before, 4 and 6 months after surgery with four double-blinded conditions assessed: with and without PPNa-DBS, with and without levodopa treatment. Four patients completed the study and two patients were excluded from the final analysis because of peri-operative adverse events (haematoma, infection). Clinically, the combination of PPNa-DBS and levodopa treatment produced a significant decrease of the freezing episodes. The frequency of falls also decreased in three out of four patients. From a neurophysiological point of view, PPNa-DBS significantly improved the anticipatory postural adjustments and double-stance duration, but not the length and speed of the first step. Interestingly, step length and speed improved after surgery without PPNa-DBS, suggesting that the lesioning effect of PPNa-DBS surgery alleviates parkinsonian akinesia. Quality of life was also significantly improved with PPNa-DBS. These results suggest that PPNa-DBS could improve gait and balance disorders in well-selected PD patients. However, this treatment may be riskier than others DBS surgeries in these patients with an advanced form of PD.

Indexed as

AgedAntiparasitic AgentsDeep Brain StimulationDouble-Blind MethodFemaleGait Disorders, NeurologicHumansImaging, Three-DimensionalLevodopaMagnetic Resonance ImagingMaleMiddle AgedNeuropsychological TestsOutcome Assessment, Health CareParkinson DiseasePedunculopontine Tegmental NucleusAntiparasitic AgentsLevodopa

Identifiers

PMID25904205
OpenAlexW2030657126

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.